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Magnetic Ground State of Novel Zigzag Chain Compounds, NaCr2O4 and Ca1-xNaxCr2O4, Determined with Muons and Neutrons. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.phpro.2015.12.112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Observation of magnetic polarons in the magnetoresistive pyrochlore Lu2V2O7. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2013; 25:115601. [PMID: 23406624 DOI: 10.1088/0953-8984/25/11/115601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Materials that exhibit colossal magnetoresistance (CMR) have attracted much attention due to their potential technological applications. One particularly interesting model for the magnetoresistance of low-carrier-density ferromagnets involves mediation by magnetic polarons (MP)-electrons localized in nanoscale ferromagnetic 'droplets' by their exchange interaction. However, MP have not previously been directly detected and their size has been difficult to determine from macroscopic measurements. In order to provide this crucial information, we have carried out muon spin rotation measurements on the magnetoresistive semiconductor Lu(2)V(2)O(7) in the temperature range from 2 to 300 K and in magnetic fields up to 7 T. Magnetic polarons with characteristic radius R ≈ 0.4 nm are detected below about 100 K, where Lu(2)V(2)O(7) exhibits CMR; at higher temperature, where the magnetoresistance vanishes, these MP also disappear. This observation confirms the MP-mediated model of CMR and reveals the microscopic size of the MP in magnetoresistive pyrochlores.
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The gradient distribution of Ni ions in cation-disordered Li[Ni1/2Mn3/2]O4 clarified by muon-spin rotation and relaxation (μSR). RSC Adv 2013. [DOI: 10.1039/c3ra40878g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Thermal destruction of spin-polaron bands in the narrow-gap correlated semiconductors FeGa3 and FeSb2. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2012; 24:185601. [PMID: 22481069 DOI: 10.1088/0953-8984/24/18/185601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report muon spin rotation spectra in the narrow-gap semiconductors FeGa(3) and FeSb(2) consistent with a narrow band of small spin polarons (SPs). The characteristic sizes obtained for these SPs are R(FeGa(3)) ≈ 0.3-0.6 nm and R(FeSb (2)) ≈ 0.3 nm, respectively. Such SP states are expected to originate from the exchange correlations between localized and itinerant electrons. Our data suggest that SP bands are formed at low temperature, but are destroyed by thermal fluctuations above 10 K in FeGa(3) and above 7 K in FeSb(2). Formation of such SP band states can explain many of the low-temperature properties of these materials.
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Kinetics of the reaction of the heaviest hydrogen atom with H2, the4Heμ + H2→4HeμH + H reaction: Experiments, accurate quantal calculations, and variational transition state theory, including kinetic isotope effects for a factor of 36.1 in isotopic mass. J Chem Phys 2011; 135:184310. [DOI: 10.1063/1.3657440] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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The Herbertsmithite Hamiltonian: μSR measurements on single crystals. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2011; 23:164207. [PMID: 21471612 DOI: 10.1088/0953-8984/23/16/164207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We present transverse field muon spin rotation/relaxation measurements on single crystals of the spin-1/2 kagome antiferromagnet Herbertsmithite. We find that the spins are more easily polarized when the field is perpendicular to the kagome plane. We demonstrate that the difference in magnetization between the different directions cannot be accounted for by Dzyaloshinskii-Moriya-type interactions alone and that anisotropic axial interaction is present.
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Bound magnetic polarons in the 3d-electron ferromagnetic spinel semiconductor CdCr2Se4. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2010; 22:495601. [PMID: 21406786 DOI: 10.1088/0953-8984/22/49/495601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Muon spin rotation/relaxation spectroscopy has been employed to study electron localization into a bound magnetic polaron around the positive muon in the 3d magnetic spinel semiconductor CdCr2Se4 at temperatures up to 300 K (far above the ferromagnetic transition at Tc = 130 K) in magnetic fields up to 7 T. Electron localization into a magnetic polaron occurs due to its strong exchange interaction with the magnetic 3d electrons of local Cr(3 +) ions, which confines its wavefunction to within R≈0.3 nm, allowing significant overlap with both the nearest and the next nearest shells of Cr ions. Formation of such magnetic polarons may explain peculiar electronic and magnetic properties of magnetic semiconductors.
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Spin polarons in the correlated metallic pyrochlore Cd2Re2O7. PHYSICAL REVIEW LETTERS 2010; 105:076402. [PMID: 20868063 DOI: 10.1103/physrevlett.105.076402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2010] [Indexed: 05/29/2023]
Abstract
Muon spin rotation spectroscopy reveals localized electron states in the geometrically frustrated metallic pyrochlore Cd2Re2O7 at temperatures from 2 to 300 K in transverse magnetic fields up to 7 T. Two distinctive types of localized states, with characteristic radii of about 0.5 and 0.15 nm, are detected at high and low temperature, respectively. These states may be spin polarons, formed due to strong exchange interaction between itinerant electrons and the magnetic 5d electrons of Re ions, which may determine the peculiar electronic and magnetic properties of Cd2Re2O7.
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Abstract
An anaerobic system is described which allows the microbiologist or hospital technician ease of operation not previously possible with other systems. Gas cylinders, vacuum pumps, valves, and gauges have been eliminated. A new anaerobic lid was developed that is fitted only with a snap-in rubber gasket, a double stainless-steel gauze flash arrestor, and a catalyst holder. The holder contains a palladium pellet catalyst which is active at room temperature and requires no heat for activation. This system was made specifically for use with a disposable hydrogen-carbon dioxide generator and a disposable methylene blue anaerobic indicator. In addition to ease of operation, this jar incorporates unique safety features which eliminate the possibility of a laboratory explosion. An oxygen-free atmosphere composed primarily of nitrogen and carbon dioxide was quickly achieved within the jar to insure maximal growth.
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Magnetic phase diagram of layered cobalt dioxide LixCoO2. PHYSICAL REVIEW LETTERS 2007; 99:087601. [PMID: 17930981 DOI: 10.1103/physrevlett.99.087601] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2006] [Indexed: 05/25/2023]
Abstract
The magnetism of LixCoO2 (LCO), which has a similar structure to NaxCoO2 (NCO), has been investigated by muon-spin spectroscopy and susceptibility measurements using samples with x=0.1-1 prepared by an electrochemical reaction. In the x range below 0.75, LCO was found to be Pauli paramagnetic down to 1.8 K, suggesting an intermediate- or weak-coupling regime, although disordered local moments, with volume fractions below approximately 20%, appear at low T for LCO with x > or = 0.5. The phase diagram and interactions of LCO are thus strikingly different from NCO, while the differences cannot be explained simply by structural differences between the two systems.
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Evidence of two dimensionality in quasi-one-dimensional cobalt oxides. PHYSICAL REVIEW LETTERS 2006; 96:197206. [PMID: 16803139 DOI: 10.1103/physrevlett.96.197206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2006] [Indexed: 05/10/2023]
Abstract
The quasi-one-dimensional (Q1D) cobalt oxides A(N + 2)Co(n + 1)O(3n + 3) (A = Ca, Sr, and Ba, n = 1 - infinity) were investigated by muon-spin spectroscopy under applied pressures of up to 1.1 GPa. The relationship between the onset Néel temperature T(on)(N) and the interchain distance (d(ic)), which increases monotonically with n, is well fitted by the formula T(N)/T(N,0) = (1 - d(ic)/d(ic,o)(beta), here for T(on)(N) approximately 100 K for Ca(3)Co(2)O(6) (n = 1) and approximately 15 for BaCoCoO(3) (n = infinity at ambient P. The T(on)(N) - d(ic) curve also predicts a large dependence of Y(N) for the compounds with n > or = 5, i.e., in the vicinity of , while the compounds show only a very small effect. Indeed, our high-pressure mu(+) results show that of BaCoO(3) is enhanced by with a slope of 2.2 K(Gpa), whereas no detectable changes by P for both Ca(3)Co(2)O(6) and Sr(4)Co(3)O(9) (n = 2). This clearly confirms the role of the 2D-antiferromagnetic interaction on T(on)(N) in the Q1D cobalt oxides.
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Static magnetic order in metallic K0.49CoO2. PHYSICAL REVIEW LETTERS 2006; 96:037206. [PMID: 16486764 DOI: 10.1103/physrevlett.96.037206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2005] [Indexed: 05/06/2023]
Abstract
By means of muon-spin spectroscopy, we have found that K0.49CoO2 crystals undergo successive magnetic transitions from a high-T paramagnetic state to a magnetic ordered state below 60 K and then to a second ordered state below 16 K, even though K0.49CoO2 is metallic at least down to 4 K. An isotropic magnetic behavior and wide internal-field distributions suggest the formation of a commensurate helical spin density wave (SDW) state below 16 K, while a linear SDW state is likely to exist above 16 K. It was also found that exhibits a further transition at 150 K presumably due to a change in the spin state of the Co ions. Since the dependence of the internal-field below 60 K was similar to that for Na0.5CoO2, this suggests that magnetic order is more strongly affected by the Co valence than by the interlayer distance or interaction and/or the charge ordering.
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Dome-shaped magnetic phase diagram of thermoelectric layered cobaltites. PHYSICAL REVIEW LETTERS 2004; 92:017602. [PMID: 14754019 DOI: 10.1103/physrevlett.92.017602] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2003] [Indexed: 05/24/2023]
Abstract
Using muon spin spectroscopy we have found that, for both NaxCoO(2) (0.6<or=x<or=0.9) and three- and four-layer cobaltites, a common low temperature magnetic state (which in some cases is manifest as an incommensurate spin density wave) forms in the CoO(2) planes. Here we summarize those results and report an almost dome-shaped relation between the transition temperature into the low-T magnetic state and the composition x for NaxCoO(2) and/or the high-temperature asymptotic limit of thermopower in the more complex three- and four-layer cobaltites. This behavior is explained using the Hubbard model on a two-dimensional triangular lattice in the CoO(2) plane.
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Isolation and characterization of omnitherms and facultative anaerobes from Cape Canaveral soil samples. LIFE SCIENCES AND SPACE RESEARCH 2003; 15:53-8. [PMID: 12596806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
In a bacterial population profile of interplanetary spacecraft environments based upon temperature and oxygen requirements, several isolates demonstrated the ability to grow over a temperature range from 3 degrees C to 55 degrees C, and most grew aerobically and anaerobically. Because of the adaptability of these organisms, they may be of significance to planetary contamination. To verify that these were actively growing in this range of temperatures, they were streaked onto trypticase soy agar (TSA) and incubated at the extreme temperatures (3 degrees C and 55 degrees C). Isolated colonies were transferred to fresh TSA and immediately incubated at the opposite extreme temperatures. Almost all of the isolates grew quite well at both temperatures. Because these have been subcultured numerous times and still possess the ability to grow over a broad temperature range, this appears to be a stable characteristic. Many of these isolates possess the ability to grow anaerobically at 3, 32 and 55 degrees C. All of these organisms are sporeformers, and data are presented concerning their heat resistance and biochemical activity.
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Influence of impurities on short range electron transport in GaAs. PHYSICAL REVIEW LETTERS 2002; 89:226601. [PMID: 12485089 DOI: 10.1103/physrevlett.89.226601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2002] [Indexed: 05/24/2023]
Abstract
The influence of Cr impurities on muonium atom formation in GaAs has been studied using muon spin relaxation techniques with alternating electric fields. The results suggest that electron transport to and capture by the muon is suppressed by capture/scattering on intervening Cr centers. The length scale involved is estimated to be about 3x10(-6) cm. This offers an opportunity to study electron transport to positive centers in semiconductors on a microscopic scale.
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Evidence for static magnetism in the vortex cores of ortho-II YBa2Cu3O6.50. PHYSICAL REVIEW LETTERS 2002; 88:137002. [PMID: 11955116 DOI: 10.1103/physrevlett.88.137002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2001] [Indexed: 05/23/2023]
Abstract
Evidence for static alternating magnetic fields in the vortex cores of underdoped YBa2Cu3O6+x is reported. Muon spin rotation measurements of the internal magnetic field distribution of the vortex state of YBa2Cu3O6.50 in applied fields of H = 1 T and H = 4 T reveal a feature in the high-field tail of the field distribution which is not present in optimally doped YBa2Cu3O6.95 and which fits well to a model with static magnetic fields in the vortex cores. The magnitude of the fields is estimated to be 18(2) G and decreases above T = 10 K. We discuss possible origins of the additional vortex core magnetism within the context of existing theories.
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Abstract
For some time now, there has been considerable experimental and theoretical effort to understand the role of the normal-state "pseudogap" phase in underdoped high-temperature cuprate superconductors. Recent debate has centered on the question of whether the pseudogap is independent of superconductivity. We provide evidence from zero-field muon spin relaxation measurements in YBa2Cu3O6+x for the presence of small spontaneous static magnetic fields of electronic origin intimately related to the pseudogap transition. Our most significant finding is that, for optimal doping, these weak static magnetic fields appear well below the superconducting transition temperature. The two compositions measured suggest the existence of a quantum critical point somewhat above optimal doping.
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Human herpesvirus 6 and multiple sclerosis: systemic active infections in patients with early disease. Clin Infect Dis 2000; 31:894-903. [PMID: 11049767 DOI: 10.1086/318141] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/1999] [Revised: 02/23/2000] [Indexed: 11/03/2022] Open
Abstract
By means of immunohistochemical staining, cells actively infected with human herpesvirus 6 (HHV-6) were found in central nervous system tissues from 8 (73%) of 11 patients with definite multiple sclerosis (MS). Interestingly, 17 (90%) of 19 tissue sections showing active demyelination were positive for HHV-6-infected cells compared with only 3 (13%) of 23 tissue sections free of active disease (P<.0001). Central nervous system tissues from 2 of 28 normal persons and patients with other inflammatory demyelinative diseases were positive for HHV-6-infected cells (P<.0001), and the 2 positive cases were diagnosed as having HHV-6 leukoencephalitis. By use of a rapid culture assay, blood samples from 22 (54%) of 41 patients with definite MS were found to contain active HHV-6 infections, compared with 0 of 61 normal controls (P<.0001). No significant difference was found between HHV-6 viremia-positive and HHV-6 viremia-negative MS patients with respect to type of disease (relapsing/remitting or progressive). In contrast, patients with active HHV-6 viremia were significantly younger and had shorter durations of disease than did HHV-6 viremia-negative patients.
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Low temperature limit of the vortex core radius and the kramer-pesch effect in NbSe2. PHYSICAL REVIEW LETTERS 2000; 85:1540-1543. [PMID: 10970549 DOI: 10.1103/physrevlett.85.1540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/1999] [Indexed: 05/23/2023]
Abstract
Muon spin rotation ( &mgr;SR) has been used to measure the magnetic field distribution in the vortex state of the type-II superconductor NbSe2 ( T(c) = 7.0 K) below T = 2 K. The distribution is consistent with a highly ordered hexagonal vortex lattice with a well resolved high-field cutoff associated with the finite size of the vortex cores. The temperature dependence of the core radius is much weaker than the temperature dependence predicted from the Bogoliubov-de Gennes theory. Furthermore, the vortex radius measured by &mgr;SR near the low temperature quantum limit is about an order of magnitude larger than predicted.
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Electron localization in a disordered insulating host. PHYSICAL REVIEW LETTERS 2000; 85:166-169. [PMID: 10991185 DOI: 10.1103/physrevlett.85.166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2000] [Indexed: 05/23/2023]
Abstract
Transport of excess electrons has been studied in solid N2-Ar mixtures between 5 and 60 K using muon spin rotation in magnetic and electric fields. At low temperatures, orientational frustration of N2 molecular quadrupoles by a sufficiently high concentration of Ar atoms leads to formation of a quadrupolar glass phase in which electrons are found to be strongly localized. This feature is in marked contrast to the electron delocalization observed in the low-temperature alpha phase of pure solid nitrogen, which shows long-range orientational order.
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Muonium localization in solid krypton. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:662-667. [PMID: 9983017 DOI: 10.1103/physrevb.53.662] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Ginzburg-Landau parameter in YBa2Cu3O6.95 below the irreversibility temperature as measured by micro+SR in high magnetic fields. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:10569-10580. [PMID: 9980110 DOI: 10.1103/physrevb.52.10569] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Two-phonon quantum diffusion of muonium in solid nitrogen. PHYSICAL REVIEW LETTERS 1994; 72:3056-3059. [PMID: 10056056 DOI: 10.1103/physrevlett.72.3056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Muon-spin-rotation study of the effect of Zn substitution on magnetism in YBa2Cu3Ox. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:10035-10038. [PMID: 10009819 DOI: 10.1103/physrevb.49.10035] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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New muon-spin-rotation measurement of the temperature dependence of the magnetic penetration depth in YBa2Cu3O6.95. PHYSICAL REVIEW LETTERS 1994; 72:744-747. [PMID: 10056512 DOI: 10.1103/physrevlett.72.744] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Critical behavior of the electric-field gradient in MnSi studied by muon level-crossing resonance. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:16803-16806. [PMID: 10008268 DOI: 10.1103/physrevb.48.16803] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Muon-spin-rotation and relaxation studies in (TMTSF)2-X compounds. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:7284-7296. [PMID: 10006896 DOI: 10.1103/physrevb.48.7284] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Microwave determination of the quasiparticle scattering time in YBa2Cu3O6.95. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:11314-11328. [PMID: 10005266 DOI: 10.1103/physrevb.47.11314] [Citation(s) in RCA: 142] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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The affinity between continuous quality improvement and epidemic surveillance. Infect Control Hosp Epidemiol 1993; 14:95-8. [PMID: 8440886 DOI: 10.1086/646689] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVE To discuss the close affinity between the continuous quality improvement (CQI) concept of monitoring a process for the introduction of special causes and epidemic surveillance. DESIGN A case study of a CQI tool for infection control epidemic surveillance. SETTING AND PATIENTS A 668-bed acute care hospital with 5 intensive care units supporting heart, liver transplant, and trauma teams. The infection control department consists of 2.5 full-time employee nurse epidemiologists and a medical director who is an infectious disease specialist. RESULTS The outbreak investigation illustrates principles of CQI and their relationship to epidemic surveillance through the use of applied statistical methods. CONCLUSIONS The expanding role of hospital epidemiology is enhanced by applying CQI concepts to improving health care. The application of epidemiologic tools and principles to the problems of nosocomial infections is strongly connected to the CQI concept of using dependable data to improve processes.
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Evidence for endohedral muonium in Kx C60 and consequences for electronic structure. PHYSICAL REVIEW LETTERS 1992; 69:2005-2008. [PMID: 10046372 DOI: 10.1103/physrevlett.69.2005] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Muon-spin-relaxation measurements of magnetic penetration depth in organic superconductors (BEDT-TTF)2-X: X=Cu(NCS)2 and Cu. PHYSICAL REVIEW LETTERS 1992; 68:1923-1926. [PMID: 10045255 DOI: 10.1103/physrevlett.68.1923] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Basic similarities among cuprate, bismuthate, organic, Chevrel-phase, and heavy-fermion superconductors shown by penetration-depth measurements. PHYSICAL REVIEW LETTERS 1991; 66:2665-2668. [PMID: 10043580 DOI: 10.1103/physrevlett.66.2665] [Citation(s) in RCA: 95] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Muon diffusion and spin dynamics in copper. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:3284-3297. [PMID: 9997638 DOI: 10.1103/physrevb.43.3284] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Magnetic order and electronic phase diagrams of electron-doped copper oxide materials. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:7981-7988. [PMID: 9994963 DOI: 10.1103/physrevb.42.7981] [Citation(s) in RCA: 87] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Spin dynamics of the itinerant helimagnet MnSi studied by positive muon spin relaxation. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:6515-6522. [PMID: 9994737 DOI: 10.1103/physrevb.42.6515] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Erratum: Muon-spin-relaxation and neutron-scattering studies of magnetism in single-crystal La1.94Sr0.06CuO4. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:6745. [PMID: 9994774 DOI: 10.1103/physrevb.42.6745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Magnetic penetration depth of Y1-xPrxBa2Cu3O6.97 measured by muon-spin relaxation. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:6801-6804. [PMID: 9994790 DOI: 10.1103/physrevb.42.6801] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Muon-spin-rotation studies in single-crystal Sr2CuO2Cl2. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:2182-2187. [PMID: 9995663 DOI: 10.1103/physrevb.42.2182] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Muon-spin-relaxation and neutron-scattering studies of magnetism in single-crystal La1.94Sr0.06CuO4. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 41:8866-8871. [PMID: 9993225 DOI: 10.1103/physrevb.41.8866] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Search for anomalous internal magnetic fields in high-Tc superconductors as evidence for broken time-reversal symmetry. PHYSICAL REVIEW LETTERS 1990; 64:2082-2085. [PMID: 10041572 DOI: 10.1103/physrevlett.64.2082] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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