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Hinks DG, Dabrowski B, Zhang K, Segre CU, Jorgensen JD, Soderholm L, Beno MA. Neutron Diffraction Studies of High TC Superconductors. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-99-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTWe have investigated the structure and composition of La2CuO4 (both pure and Sr-doped) and Nd(Ba2−xNdx)Cu3O7 using powder neutron diffraction. In La2−xSrxCuO4, Tc reacnes its maximum at x=0.15, after which vacancies are introduced in the 2D planes and superconductivity is destroyed. Superconductivity in La2CuO4 is not bulk. No evidence for nonstoichlometry in this material can be observed. In the Nd(Ba2−xNdx)Cu3O7 system, Tc is a complex function of oxygen ordering and electronic effects.
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Wada T, Suzuki N, Maeda A, Yabe T, Uchinokura K, Uchida S, Tanaka S. Preparation and properties of superconducting La1+xBa2-xCu3Oy (0 <= x <= 0.5) ceramics sintered in N2 gas atmosphere. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 39:9126-9138. [PMID: 9947641 DOI: 10.1103/physrevb.39.9126] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Song Y, Golben JP, Chittipeddi S, Gaines JR, Epstein AJ. Experimental study of La1Ba2Cu3Ox. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:4605-4615. [PMID: 9946850 DOI: 10.1103/physrevb.38.4605] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Song Y, Golben JP, Chen XD, Gaines JR, Wong MS, Kreidler ER. Thermogravimetric study of the La1Ba2Cu3O7- delta system: The correlation of Tc with oxygen content. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:2858-2861. [PMID: 9946607 DOI: 10.1103/physrevb.38.2858] [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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Chittipeddi S, Song Y, Cox DL, Gaines JR, Golben JP, Epstein AJ. Resistive and magnetic studies of Nd1Ba. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:7454-7457. [PMID: 9944033 DOI: 10.1103/physrevb.37.7454] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Song Y, Golben JP, Chittipeddi S, Lee SI, McMichael RD, Chen XD, Gaines JR, Cox DL, Epstein AJ. X-ray and neutron diffracton study of La1Ba2Cu3O9- delta : Influence of the Cu-O structure on Tc. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:607-610. [PMID: 9943631 DOI: 10.1103/physrevb.37.607] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Robledo A, Varea C. High-Tc superconductivity at twin boundaries in a Landau-Ginzburg superconductor oxide model. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:631-634. [PMID: 9943637 DOI: 10.1103/physrevb.37.631] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Shen Z, Allen JW, Yeh JJ, Kang J, Ellis W, Spicer W, Lindau I, Maple MB, Dalichaouch YD, Torikachvili MS, Sun JZ. Anderson Hamiltonian description of the experimental electronic structure and magnetic interactions of copper oxide superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1987; 36:8414-8428. [PMID: 9942659 DOI: 10.1103/physrevb.36.8414] [Citation(s) in RCA: 186] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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