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Song D, Han G, Kyung W, Seo J, Cho S, Kim BS, Arita M, Shimada K, Namatame H, Taniguchi M, Yoshida Y, Eisaki H, Park SR, Kim C. Electron Number-Based Phase Diagram of Pr_{1-x}LaCe_{x}CuO_{4-δ} and Possible Absence of Disparity between Electron- and Hole-Doped Cuprate Phase Diagrams. PHYSICAL REVIEW LETTERS 2017; 118:137001. [PMID: 28409951 DOI: 10.1103/physrevlett.118.137001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Indexed: 06/07/2023]
Abstract
We performed annealing and angle resolved photoemission spectroscopy studies on electron-doped cuprate Pr_{1-x}LaCe_{x}CuO_{4-δ} (PLCCO). It is found that the optimal annealing condition is dependent on the Ce content x. The electron number (n) is estimated from the experimentally obtained Fermi surface volume for x=0.10, 0.15 and 0.18 samples. It clearly shows a significant and annealing dependent deviation from the nominal x. In addition, we observe that the pseudo-gap at hot spots is also closely correlated with n; the pseudogap gradually closes as n increases. We established a new phase diagram of PLCCO as a function of n. Different from the x-based one, the new phase diagram shows similar antiferromagnetic and superconducting phases to those of hole doped ones. Our results raise a possibility for absence of disparity between the phase diagrams of electron- and hole-doped cuprates.
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Affiliation(s)
- Dongjoon Song
- National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan
| | - Garam Han
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 151-742, Republic of Korea
- Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Republic of Korea
| | - Wonshik Kyung
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 151-742, Republic of Korea
- Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Republic of Korea
| | - Jeongjin Seo
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 151-742, Republic of Korea
- Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749, Republic of Korea
| | - Soohyun Cho
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 151-742, Republic of Korea
- Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749, Republic of Korea
| | - Beom Seo Kim
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 151-742, Republic of Korea
- Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Republic of Korea
| | - Masashi Arita
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-0046, Japan
| | - Kenya Shimada
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-0046, Japan
| | - Hirofumi Namatame
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-0046, Japan
| | - Masaki Taniguchi
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-0046, Japan
| | - Y Yoshida
- National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan
| | - H Eisaki
- National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan
| | - Seung Ryong Park
- Department of Physics, Incheon National University, Incheon 22012, Republic of Korea
| | - C Kim
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 151-742, Republic of Korea
- Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Republic of Korea
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Kang HJ, Dai P, Campbell BJ, Chupas PJ, Rosenkranz S, Lee PL, Huang Q, Li S, Komiya S, Ando Y. Microscopic annealing process and its impact on superconductivity in T'-structure electron-doped copper oxides. NATURE MATERIALS 2007; 6:224-9. [PMID: 17310138 DOI: 10.1038/nmat1847] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2006] [Accepted: 01/12/2007] [Indexed: 05/14/2023]
Abstract
High-transition-temperature superconductivity arises in copper oxides when holes or electrons are doped into the CuO(2) planes of their insulating parent compounds. Whereas hole doping quickly induces metallic behaviour and superconductivity in many cuprates, electron doping alone is insufficient in materials such as R(2)CuO(4) (R is Nd, Pr, La, Ce and so on), where it is necessary to anneal an as-grown sample in a low-oxygen environment to remove a tiny amount of oxygen in order to induce superconductivity. Here we show that the microscopic process of oxygen reduction repairs Cu deficiencies in the as-grown materials and creates oxygen vacancies in the stoichiometric CuO(2) planes, effectively reducing disorder and providing itinerant carriers for superconductivity. The resolution of this long-standing materials issue suggests that the fundamental mechanism for superconductivity is the same for electron- and hole-doped copper oxides.
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Affiliation(s)
- Hye Jung Kang
- Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996-1200, USA.
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Sun XF, Kurita Y, Suzuki T, Komiya S, Ando Y. Thermal conductivity of Pr1.3-xLa0.7CexCuO4 single crystals and signatures of stripes in an electron-doped cuprate. PHYSICAL REVIEW LETTERS 2004; 92:047001. [PMID: 14995395 DOI: 10.1103/physrevlett.92.047001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2003] [Indexed: 05/24/2023]
Abstract
It was recently demonstrated that the anisotropic phonon heat transport behavior is a good probe of the stripe formation in La(2-x)Sr(x)CuO(4) (LSCO) [Phys. Rev. B 67, 104503 (2003)]]. Using this probe, we examined an electron-doped cuprate Pr(1.3-x)La(0.7)Ce(x)CuO(4) (PLCCO) and found that essentially the same features as those in LSCO are observed. Moreover, the in-plane resistivity rho(ab) of lightly doped PLCCO shows metallic behavior (drho(ab)/dT>0) in the Néel ordered state with a mobility comparable to that in LSCO. It is discussed that these peculiar properties in common with LSCO signify the existence of stripes in electron-doped cuprates.
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Affiliation(s)
- X F Sun
- Central Research Institute of Electric Power Industry, Komae, Tokyo 201-8511, Japan
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Xu XQ, Mao SN, Jiang W, Peng JL, Greene RL. Oxygen dependence of the transport properties of Nd1.78Ce0.22CuO4+/- delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:871-875. [PMID: 9983043 DOI: 10.1103/physrevb.53.871] [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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6
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Lofland SE, Bhagat SM, Ju HL, Xiong GC, Venkatesan T, Greene RL. Ferromagnetic resonance and magnetic homogeneity in a giant-magnetoresistance material La2/3Ba1/3MnO3. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:15058-15061. [PMID: 9980850 DOI: 10.1103/physrevb.52.15058] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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7
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Seng P, Diehl J, Klimm S, Horn S, Tidecks R, Samwer K, Hänsel H, Gross R. Hall effect and magnetoresistance in Nd1.85Ce0.15CuO4- delta films. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:3071-3074. [PMID: 9981417 DOI: 10.1103/physrevb.52.3071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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9
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Grosu I, Veres T, Crisan M. Decrease in critical temperature due to disorder and magnetic correlations in two-dimensional superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:9404-9408. [PMID: 9974990 DOI: 10.1103/physrevb.50.9404] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Jiang W, Mao SN, Xi XX, Jiang X, Peng JL, Venkatesan T, Lobb CJ, Greene RL. Anomalous transport properties in superconducting Nd1.85Ce0.15CuO4+/- delta. PHYSICAL REVIEW LETTERS 1994; 73:1291-1294. [PMID: 10057673 DOI: 10.1103/physrevlett.73.1291] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Harris JM, Wu H, Ong NP, Meng RL, Chu CW. Hall-effect measurements of HgBa2CaCu2O6+ delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:3246-3249. [PMID: 9976574 DOI: 10.1103/physrevb.50.3246] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Anlage SM, Wu DH, Mao J, Mao SN, Xi XX, Venkatesan T, Peng JL, Greene RL. Electrodynamics of Nd1.85Ce0.15CuO4: Comparison with Nb and YBa2Cu3O7- delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:523-535. [PMID: 9974571 DOI: 10.1103/physrevb.50.523] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Sawatzky GA. Intersite interactions in Cu L-edge XPS, XAS, and XES of doped and undoped Cu compounds. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:3473-3482. [PMID: 10011211 DOI: 10.1103/physrevb.49.3473] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Jiang W, Xu XQ, Hagen SJ, Peng JL, Li ZY, Greene RL. Anisotropic normal-state magnetothermopower of superconducting Nd1.85Ce0.15CuO4 crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:657-660. [PMID: 10006834 DOI: 10.1103/physrevb.48.657] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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