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Döppner T, Bethkenhagen M, Kraus D, Neumayer P, Chapman DA, Bachmann B, Baggott RA, Böhme MP, Divol L, Falcone RW, Fletcher LB, Landen OL, MacDonald MJ, Saunders AM, Schörner M, Sterne PA, Vorberger J, Witte BBL, Yi A, Redmer R, Glenzer SH, Gericke DO. Observing the onset of pressure-driven K-shell delocalization. Nature 2023:10.1038/s41586-023-05996-8. [PMID: 37225995 DOI: 10.1038/s41586-023-05996-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 03/22/2023] [Indexed: 05/26/2023]
Abstract
The gravitational pressure in many astrophysical objects exceeds one gigabar (one billion atmospheres)1-3, creating extreme conditions where the distance between nuclei approaches the size of the K shell. This close proximity modifies these tightly bound states and, above a certain pressure, drives them into a delocalized state4. Both processes substantially affect the equation of state and radiation transport and, therefore, the structure and evolution of these objects. Still, our understanding of this transition is far from satisfactory and experimental data are sparse. Here we report on experiments that create and diagnose matter at pressures exceeding three gigabars at the National Ignition Facility5 where 184 laser beams imploded a beryllium shell. Bright X-ray flashes enable precision radiography and X-ray Thomson scattering that reveal both the macroscopic conditions and the microscopic states. The data show clear signs of quantum-degenerate electrons in states reaching 30 times compression, and a temperature of around two million kelvins. At the most extreme conditions, we observe strongly reduced elastic scattering, which mainly originates from K-shell electrons. We attribute this reduction to the onset of delocalization of the remaining K-shell electron. With this interpretation, the ion charge inferred from the scattering data agrees well with ab initio simulations, but it is significantly higher than widely used analytical models predict6.
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Affiliation(s)
- T Döppner
- Lawrence Livermore National Laboratory, Livermore, CA, USA.
| | - M Bethkenhagen
- Institute of Physics, University of Rostock, Rostock, Germany
- École Normale Supérieure de Lyon, LGLTPE, CNRS UMR 5276, Lyon, France
| | - D Kraus
- Institute of Physics, University of Rostock, Rostock, Germany
- Department of Physics, University of California Berkeley, Berkeley, CA, USA
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - P Neumayer
- GSI Helmholtz-Zentrum für Schwerionenforschung, Darmstadt, Germany
| | | | - B Bachmann
- Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - R A Baggott
- The John Adams Institute for Accelerator Science, Imperial College London, London, UK
| | - M P Böhme
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
- Center for Advanced Systems Understanding (CASUS), Görlitz, Germany
- Technische Universität Dresden, Dresden, Germany
| | - L Divol
- Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - R W Falcone
- Department of Physics, University of California Berkeley, Berkeley, CA, USA
| | - L B Fletcher
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - O L Landen
- Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - M J MacDonald
- Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - A M Saunders
- Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - M Schörner
- Institute of Physics, University of Rostock, Rostock, Germany
| | - P A Sterne
- Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - J Vorberger
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - B B L Witte
- Institute of Physics, University of Rostock, Rostock, Germany
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - A Yi
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - R Redmer
- Institute of Physics, University of Rostock, Rostock, Germany
| | - S H Glenzer
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - D O Gericke
- Centre for Fusion, Space and Astrophysics, Department of Physics, University of Warwick, Coventry, UK
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2
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Chen Z, Tsui YY, Mo MZ, Fedosejevs R, Ozaki T, Recoules V, Sterne PA, Ng A. Electron Kinetics Induced by Ultrafast Photoexcitation of Warm Dense Matter in a 30-nm-Thick Foil. Phys Rev Lett 2021; 127:097403. [PMID: 34506197 DOI: 10.1103/physrevlett.127.097403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 03/16/2021] [Accepted: 06/11/2021] [Indexed: 06/13/2023]
Abstract
We report on the study of electron kinetics induced by intense femtosecond (fs) laser excitation of electrons in the 5d band of Au. Changes in the electron system are observed from the temporal evolution of ac conductivity and conduction electron density. The results reveal an increase of electron thermalization time with excitation energy density, contrary to the Fermi-liquid behavior of the decrease of thermalization time associated with the heating of conduction electrons. This is attributed to the severe mitigation of photoexcitation by Auger decay. The study also uncovers the shortening of 5d hole lifetime with the increase of photoexcitation rates. These unique findings provide valuable insights for understanding electron kinetics under extreme nonequilibrium conditions.
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Affiliation(s)
- Z Chen
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6G-2V4, Canada
| | - Y Y Tsui
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6G-2V4, Canada
| | - M Z Mo
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6G-2V4, Canada
| | - R Fedosejevs
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6G-2V4, Canada
| | - T Ozaki
- INRS-EMT, University of Quebec, Varennes, Quebec J3X-1S2, Canada
| | - V Recoules
- CEA, DAM, DIF, 91297 Arpajon Cedex, France
| | - P A Sterne
- Lawerence Livermore National Laboratory, Livermore, California 94550, USA
| | - A Ng
- Department of Physics and Astronomy, University of British Colombia, Vancouver, British Colombia V6T-1Z1, Canada
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3
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Jiang S, Lazicki AE, Hansen SB, Sterne PA, Grabowski P, Shepherd R, Scott HA, Smith RF, Eggert JH, Ping Y. Measurements of pressure-induced Kβ line shifts in ramp compressed cobalt up to 8 Mbar. Phys Rev E 2020; 101:023204. [PMID: 32168658 DOI: 10.1103/physreve.101.023204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 12/17/2019] [Indexed: 11/07/2022]
Abstract
We report measurements of K-shell fluorescence lines induced by fast electrons in ramp-compressed Co targets. The fluorescence emission was stimulated by fast electrons generated through short-pulse laser-solid interaction with an Al target layer. Compression up to 2.1× solid density was achieved while maintaining temperatures well below the Fermi energy, effectively removing the thermal effects from consideration. We observed small but unambiguous redshifts in the Kβ fluorescence line relative to unshifted Cu Kα. Redshifts up to 2.6 eV were found to increase with compression and to be consistent with predictions from self-consistent models based on density-functional theory.
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Affiliation(s)
- S Jiang
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A E Lazicki
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S B Hansen
- Sandia National Laboratory, Albuquerque, New Mexico 87185, USA
| | - P A Sterne
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - P Grabowski
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R Shepherd
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - H A Scott
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R F Smith
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J H Eggert
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Y Ping
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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Fernandez-Pañella A, Millot M, Fratanduono DE, Desjarlais MP, Hamel S, Marshall MC, Erskine DJ, Sterne PA, Haan S, Boehly TR, Collins GW, Eggert JH, Celliers PM. Shock Compression of Liquid Deuterium up to 1 TPa. Phys Rev Lett 2019; 122:255702. [PMID: 31347873 DOI: 10.1103/physrevlett.122.255702] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 04/11/2019] [Indexed: 06/10/2023]
Abstract
We present laser-driven shock compression experiments on cryogenic liquid deuterium to 550 GPa along the principal Hugoniot and reflected-shock data up to 1 TPa. High-precision interferometric Doppler velocimetry and impedance-matching analysis were used to determine the compression accurately enough to reveal a significant difference as compared to state-of-the-art ab initio calculations and thus, no single equation of state model fully matches the principal Hugoniot of deuterium over the observed pressure range. In the molecular-to-atomic transition pressure range, models based on density functional theory calculations predict the maximum compression accurately. However, beyond 250 GPa along the principal Hugoniot, first-principles models exhibit a stiffer response than the experimental data. Similarly, above 500 GPa the reflected shock data show 5%-7% higher compression than predicted by all current models.
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Affiliation(s)
| | - M Millot
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D E Fratanduono
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M P Desjarlais
- Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
| | - S Hamel
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M C Marshall
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D J Erskine
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - P A Sterne
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S Haan
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - T R Boehly
- Departments of Mechanical Engineering, Physics and Astronomy, and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - G W Collins
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
- Departments of Mechanical Engineering, Physics and Astronomy, and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - J H Eggert
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - P M Celliers
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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Döppner T, Swift DC, Kritcher AL, Bachmann B, Collins GW, Chapman DA, Hawreliak J, Kraus D, Nilsen J, Rothman S, Benedict LX, Dewald E, Fratanduono DE, Gaffney JA, Glenzer SH, Hamel S, Landen OL, Lee HJ, LePape S, Ma T, MacDonald MJ, MacPhee AG, Milathianaki D, Millot M, Neumayer P, Sterne PA, Tommasini R, Falcone RW. Absolute Equation-of-State Measurement for Polystyrene from 25 to 60 Mbar Using a Spherically Converging Shock Wave. Phys Rev Lett 2018; 121:025001. [PMID: 30085737 DOI: 10.1103/physrevlett.121.025001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 05/01/2018] [Indexed: 06/08/2023]
Abstract
We have developed an experimental platform for the National Ignition Facility that uses spherically converging shock waves for absolute equation-of-state (EOS) measurements along the principal Hugoniot. In this Letter, we present one indirect-drive implosion experiment with a polystyrene sample that employs radiographic compression measurements over a range of shock pressures reaching up to 60 Mbar (6 TPa). This significantly exceeds previously published results obtained on the Nova laser [R. Cauble et al., Phys. Rev. Lett. 80, 1248 (1998)PRLTAO0031-900710.1103/PhysRevLett.80.1248] at a strongly improved precision, allowing us to discriminate between different EOS models. We find excellent agreement with Kohn-Sham density-functional-theory-based molecular dynamics simulations.
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Affiliation(s)
- T Döppner
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D C Swift
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A L Kritcher
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - B Bachmann
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - G W Collins
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
- Department of Mechanical Engineering, Physics and Astronomy, University of Rochester, Rochester, New York 14623, USA
| | - D A Chapman
- AWE plc, Aldermaston RG7 4PR, United Kingdom
| | - J Hawreliak
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D Kraus
- University of California, Berkeley, California 94720, USA
- Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
| | - J Nilsen
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S Rothman
- AWE plc, Aldermaston RG7 4PR, United Kingdom
| | - L X Benedict
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - E Dewald
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D E Fratanduono
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J A Gaffney
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S H Glenzer
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - S Hamel
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - O L Landen
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - H J Lee
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - S LePape
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - T Ma
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M J MacDonald
- University of California, Berkeley, California 94720, USA
| | - A G MacPhee
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D Milathianaki
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - M Millot
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - P Neumayer
- GSI Helmholtz-Zentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - P A Sterne
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R Tommasini
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R W Falcone
- University of California, Berkeley, California 94720, USA
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6
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McKelvey A, Kemp GE, Sterne PA, Fernandez-Panella A, Shepherd R, Marinak M, Link A, Collins GW, Sio H, King J, Freeman RR, Hua R, McGuffey C, Kim J, Beg FN, Ping Y. Thermal conductivity measurements of proton-heated warm dense aluminum. Sci Rep 2017; 7:7015. [PMID: 28765571 PMCID: PMC5539319 DOI: 10.1038/s41598-017-07173-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 06/21/2017] [Indexed: 11/19/2022] Open
Abstract
Thermal conductivity is one of the most crucial physical properties of matter when it comes to understanding heat transport, hydrodynamic evolution, and energy balance in systems ranging from astrophysical objects to fusion plasmas. In the warm dense matter regime, experimental data are very scarce so that many theoretical models remain untested. Here we present the first thermal conductivity measurements of aluminum at 0.5–2.7 g/cc and 2–10 eV, using a recently developed platform of differential heating. A temperature gradient is induced in a Au/Al dual-layer target by proton heating, and subsequent heat flow from the hotter Au to the Al rear surface is detected by two simultaneous time-resolved diagnostics. A systematic data set allows for constraining both thermal conductivity and equation-of-state models. Simulations using Purgatorio model or Sesame S27314 for Al thermal conductivity and LEOS for Au/Al release equation-of-state show good agreement with data after 15 ps. Discrepancy still exists at early time 0–15 ps, likely due to non-equilibrium conditions.
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Affiliation(s)
- A McKelvey
- Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.,University of Michigan, Nuclear Engineering Department, Ann Arbor, MI, 48109, USA
| | - G E Kemp
- Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | - P A Sterne
- Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | | | - R Shepherd
- Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | - M Marinak
- Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | - A Link
- Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | - G W Collins
- Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | - H Sio
- Massachusetts Institute of Technology, Plasma Science and Fusion Center, Cambridge, MA, 02139, USA
| | - J King
- The Ohio State University, Physics Department, Columbus, Ohio, 43210, USA
| | - R R Freeman
- The Ohio State University, Physics Department, Columbus, Ohio, 43210, USA
| | - R Hua
- University of California San Diego, Center for Energy Research, La Jolla, CA, 92093, USA
| | - C McGuffey
- University of California San Diego, Center for Energy Research, La Jolla, CA, 92093, USA
| | - J Kim
- University of California San Diego, Center for Energy Research, La Jolla, CA, 92093, USA
| | - F N Beg
- University of California San Diego, Center for Energy Research, La Jolla, CA, 92093, USA
| | - Y Ping
- Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.
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Sterne PA, Benedict LX, Hamel S, Correa AA, Milovich JL, Marinak MM, Celliers PM, Fratanduono DE. Equations of State for Ablator Materials in Inertial Confinement Fusion Simulations. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/717/1/012082] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Abstract
ABSTRACTSelf-consistent spin-polarized energy bands have been calculated for tetragonal and orthorhombic La2CuO4. No stable antiferromagnetic order is found in either the stoichiometric compound or oxygen deficient La2CuO3.75. Constraining the occupancy of Brillouin zone boundary states leads to a small antiferromagnetic moment in both systems which is rapidly quenched by Ba doping.
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Eshed A, Goktepeli S, Koymen AR, Kim S, Chen WC, O'Kelly DJ, Sterne PA, Weiss AH. Gamma spectra resulting from the annihilation of positrons with electrons in a single core level. Phys Rev Lett 2002; 89:075503. [PMID: 12190527 DOI: 10.1103/physrevlett.89.075503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2001] [Indexed: 05/23/2023]
Abstract
The first gamma spectra associated with the annihilation of positrons with individual core levels (Cu 3p and Ag 4p) are presented. The spectra were obtained by measuring the energy of gamma rays time coincident with Auger electrons emitted as a result of positrons annihilating with a selected core level. Relativistic calculations show good agreement with experiment over a limited range of momenta. However, statistically significant differences indicate that the measurements can provide an impetus to new calculations of many body effects in positron-core electrons annihilation.
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Affiliation(s)
- A Eshed
- Department of Physics, The University of Texas at Arlington, 76019, USA
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10
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Hunt AW, Cassidy DB, Sterne PA, Cowan TE, Howell RH, Lynn KG, Golevchenko JA. Doppler broadening of in-flight positron annihilation radiation due to electron momentum. Phys Rev Lett 2001; 86:5612-5615. [PMID: 11415314 DOI: 10.1103/physrevlett.86.5612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2001] [Indexed: 05/23/2023]
Abstract
We report the first observation of electron momentum contributions to the Doppler broadening of radiation produced by in-flight two-photon annihilation in solids. In these experiments an approximately 2.5 MeV positron beam impinged on thin polyethylene, aluminum, and gold targets. Since energetic positrons easily penetrate the nuclear Coulomb potential and do not cause a strong charge polarization, the experimental annihilation line shapes agree well with calculations based on a simple independent-particle model. Moreover, annihilations with the deepest core electrons are greatly enhanced.
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Affiliation(s)
- A W Hunt
- Center for Materials Research, Washington State University, Pullman, Washington 99164-2711, USA
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Temmerman WM, Stocks GM, Durham PJ, Sterne PA. Electronic structure of La-Cu and Y-Ba-Cu oxides: ground-state properties and photoemission spectra. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0305-4608/17/7/006] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Turchi PE, Sterne PA. Fe, Ru, and Os disilicides: Electronic structure of ordered compounds. Phys Rev B Condens Matter 1996; 54:7897-7908. [PMID: 9984465 DOI: 10.1103/physrevb.54.7897] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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17
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Liu DJ, Einstein TL, Sterne PA, Wille LT. Phase diagram of a two-dimensional lattice-gas model of oxygen ordering in YBa2Cu3Oz with realistic interactions. Phys Rev B Condens Matter 1995; 52:9784-9792. [PMID: 9980030 DOI: 10.1103/physrevb.52.9784] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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18
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Tobin JG, Waddill GD, Jankowski AF, Sterne PA, Pappas DP. Comparison of branching ratio and sum-rule analyses of magnetic circular dichroism in x-ray-absorption spectroscopy. Phys Rev B Condens Matter 1995; 52:6530-6541. [PMID: 9981882 DOI: 10.1103/physrevb.52.6530] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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19
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Clark JF, Pinski FJ, Johnson DD, Sterne PA, Staunton JB, Ginatempo B. van Hove singularity induced L11 ordering in CuPt. Phys Rev Lett 1995; 74:3225-3228. [PMID: 10058143 DOI: 10.1103/physrevlett.74.3225] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Tamura E, Waddill GD, Tobin JG, Sterne PA. Linear and circular dichroism in angle resolved Fe 3p photoemission. Phys Rev Lett 1994; 73:1533-1536. [PMID: 10056817 DOI: 10.1103/physrevlett.73.1533] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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21
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Howell RH, Sterne PA, Fluss MJ, Kaiser JH, Kitazawa K, Kojima H. Evolution of the electronic structure of La2-xSrxCuO4 with doping determined by positron-annihilation spectroscopy. Phys Rev B Condens Matter 1994; 49:13127-13136. [PMID: 10010228 DOI: 10.1103/physrevb.49.13127] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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23
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Mosley WD, Dykes JW, Klavins P, Shelton RN, Sterne PA, Howell RH. Correlation of the superconducting transition to oxygen stoichiometry in single-crystal Ba1-xKxBiO3-y. Phys Rev B Condens Matter 1993; 48:611-614. [PMID: 10006821 DOI: 10.1103/physrevb.48.611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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24
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Tobin JG, Olson CG, Gu C, Liu JZ, Solal FR, Fluss MJ, Howell RH, O'Brien JC, Radousky HB, Sterne PA. Valence bands and Fermi-surface topology of untwinned single-crystal YBa2Cu3O6.9. Phys Rev B Condens Matter 1992; 45:5563-5576. [PMID: 10000275 DOI: 10.1103/physrevb.45.5563] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Pei S, Massalski TB, Temmerman WM, Sterne PA, Stocks GM. Phase stabilities of the Co3Ti and Ni3V alloys. Phys Rev B Condens Matter 1989; 39:5767-5770. [PMID: 9948992 DOI: 10.1103/physrevb.39.5767] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Sterne PA, Wang CS. Dynamical correlation corrections to band-edge discontinuities in Si/GaP superlattices. Phys Rev B Condens Matter 1988; 37:10436-10439. [PMID: 9944496 DOI: 10.1103/physrevb.37.10436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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