SUPERCONDUCTING MEISSNER EFFECT UNDER HYDROSTATIC-PRESSURE IN THE AMBIENT-PRESSURE SEMICONDUCTOR KAPPA-(BEDT-TTF)2CU(N(CN)2)CL, WHERE BEDT-TTF IS BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE

被引：33

作者：

SUSHKO, YV

ANDRES, K

机构：

[1] UKRANIAN ACAD SCI,INST SEMICOND,KIEV 252650,UKRAINE

[2] WALTHER MEISSNER INST LOW TEMP RES,W-8046 GARCHING,GERMANY

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.47.330

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The known pressure-induced superconductivity in single crystals of kappa-(BEDT-TTF)2Cu(N(CN)2)Cl where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene has been investigated by static measurements of the diamagnetic shielding and Meissner magnetizations. It is of special interest, since according to previous resistivity measurements, the transition occurs directly from a semiconducting to a superconducting state. The first traces of diamagnetism are observed at a pressure of 80 bars. Both its magnitude and its transition temperature first increase monotonically with pressure, then increase abruptly (between 150 and 200 bars) to develop into a shielding signal of 75% of its ideal value, with a Meissner effect of 25%. At still higher pressures the magnitude of both Meissner and shielding signals becomes pressure independent, while T(c), after reaching a maximum near 13 K, decreases in a fashion similar to related organic superconductors.

引用

页码：330 / 333

页数：4

共 9 条

[1] MAGNETIC PENETRATION DEPTH IN THE ORGANIC SUPERCONDUCTOR KAPPA-[BEDT-TTF]2CU[NCS]2 [J].

HARSHMAN, DR ;

KLEIMAN, RN ;

HADDON, RC ;

CHICHESTERHICKS, SV ;

KAPLAN, ML ;

RUPP, LW ;

PFIZ, T ;

WILLIAMS, DL ;

MITZI, DB .

PHYSICAL REVIEW LETTERS, 1990, 64 (11) :1293-1296

[2]

KLEIN O, 1991, SYNTHETIC MET, V41, P2063

[3] MEISSNER EFFECT IN AN ORGANIC SUPERCONDUCTOR (BEDT-TTF)2[CU(NCS)2] [J].

NOZAWA, K ;

SUGANO, T ;

URAYAMA, H ;

YAMOCHI, H ;

SAITO, G ;

KINOSHITA, M .

CHEMISTRY LETTERS, 1988, (04) :617-620

[4] PRESSURE-TEMPERATURE PHASE-DIAGRAM, INVERSE ISOTOPE EFFECT, AND SUPERCONDUCTIVITY IN EXCESS OF 13-K IN KAPPA-(BEDT-TTF)2CU[N(CN)2]CL, WHERE BEDT-TTF IS BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE [J].

SCHIRBER, JE ;

OVERMYER, DL ;

CARLSON, KD ;

WILLIAMS, JM ;

KINI, AM ;

WANG, HH ;

CHARLIER, HA ;

LOVE, BJ ;

WATKINS, DM ;

YACONI, GA .

PHYSICAL REVIEW B, 1991, 44 (09) :4666-4666

[5] LOCALIZATION AND SUPERCONDUCTIVITY IN (BEDT-TTF)2CU[N(CN)2]CL - PRESSURE EFFECT [J].

SUSHKO, YV ;

BONDARENKO, VA ;

PETROSOV, RA ;

KUSHCH, ND ;

YAGUBSKII, EB .

PHYSICA C, 1991, 185 :2683-2684

[6]

SUSHKO YV, 1991, J PHYS II, V1, P1015, DOI 10.1051/jp2:1991202

[7]

SUSHKO YV, UNPUB

[8]

VEITH H, 1988, SYNTHETIC MET, V7, pA361

[9] FROM SEMICONDUCTOR SEMICONDUCTOR TRANSITION (42K) TO THE HIGHEST-12.5 K ORGANIC SUPERCONDUCTOR, KAPPA-(ET)2CU[N(CN)2]CL [J].

WILLIAMS, JM ;

KINI, AM ;

WANG, HH ;

CARLSON, KD ;

GEISER, U ;

MONTGOMERY, LK ;

PYRKA, GJ ;

WATKINS, DM ;

KOMMERS, JM ;

BORYSCHUK, SJ ;

CROUCH, AVS ;

KWOK, WK ;

SCHIRBER, JE ;

OVERMYER, DL ;

JUNG, D ;

WHANGBO, MH .

INORGANIC CHEMISTRY, 1990, 29 (18) :3272-3274

← 1 →