Far-infrared measurement of the energy gap of La1.8Sr0.2CuO4.
作者： Z. Schlesinger , R. L. Greene , J. G. Bednorz , K. A. Müller
关键词:
摘要: We report the far-infrared transmission of high-T/sub c/ superconductor La/sub 1.8/Sr/sub 0.2/CuO/sub 4/ at temperatures above and below T/sub for magnetic fields up to 10 T. At 7 K our data is best described by a distribution superconducting energy gaps with representative value about 50 cm/sup -2/ (i.e., 72 K).
sci-hub.se 参考文章(9)
J. G. Bednorz, K. A. M�ller, Possible high Tc superconductivity in the Ba-La-Cu-O system European Physical Journal B. ,vol. 64, pp. 189- 193 ,(1986) , 10.1007/BF01303701
C. W. Chu, P. H. Hor, R. L. Meng, L. Gao, Z. J. Huang, and Y. Q. Wang, Evidence for superconductivity above 40 K in the La-Ba-Cu-O compound system Physical Review Letters. ,vol. 58, pp. 405- 407 ,(1987) , 10.1103/PHYSREVLETT.58.405
R. J. Cava, R. B. van Dover, B. Batlogg, E. A. Rietman, Bulk superconductivity at 36 K inLa1.8Sr0.2CuO4 Physical Review Letters. ,vol. 58, pp. 408- 410 ,(1987) , 10.1103/PHYSREVLETT.58.408
W. A. Curtin, N. W. Ashcroft, Theory of far-infrared absorption in small-metal-particle-insulator composites. Physical Review B. ,vol. 31, pp. 3287- 3295 ,(1985) , 10.1103/PHYSREVB.31.3287
W. A. Curtin, R. C. Spitzer, N. W. Ashcroft, A. J. Sievers, Effect of melting of the metallic component on the anomalous far-infrared absorption of superconducting Sn particle composites. Physical Review Letters. ,vol. 54, pp. 1071- 1074 ,(1985) , 10.1103/PHYSREVLETT.54.1071
D. B. Tanner, A. J. Sievers, Far-Infrared Measurement of the Energy Gap of V 3 Si Physical Review B. ,vol. 8, pp. 1978- 1981 ,(1973) , 10.1103/PHYSREVB.8.1978
R. J. Kennedy, B. P. Clayman, Superconducting energy gap of NbS2 Canadian Journal of Physics. ,vol. 62, pp. 776- 779 ,(1984) , 10.1139/P84-107
B. Batlogg, Superconductivity in Ba (Pb,Bi)O3 Physica B-condensed Matter. ,vol. 126, pp. 275- 279 ,(1984) , 10.1016/0378-4363(84)90175-X
AS Alexandrov, J Ranninger, Stanisław Robaszkiewicz, None, Bipolaronic superconductivity: Thermodynamics, magnetic properties, and possibility of existence in real substances. Physical Review B. ,vol. 33, pp. 4526- 4542 ,(1986) , 10.1103/PHYSREVB.33.4526