RESONANT RAMAN-SCATTERING FROM SUPERCONDUCTING SINGLE-CRYSTALS OF (BEDT-TTF)2I3

被引：36

作者：

POKHODNIA, KI

GRAJA, A

WEGER, M

SCHWEITZER, D

机构：

[1] UKRAINIAN ACAD SCI, INST SEMICOND, KIEV, UKRAINE

[2] POLISH ACAD SCI, INST MOLEC PHYS, PL-60479 POZNAN, POLAND

[3] HEBREW UNIV JERUSALEM, RACAH INST PHYS, JERUSALEM, ISRAEL

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1993年 / 90卷 / 02期

关键词：

D O I：

10.1007/BF02198145

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A study of low energetic resonant Raman scattering of (BEDT-TTF)2I3 superconductors was performed. The vanishing of phonon bands accompanied by a decrease of the electronic background was observed below T(c). We propose a theoretical explanation for this novel effect in terms of the Balseiro-Falicov model of phonon-superconducting amplitude mode interaction.

引用

收藏

页码：127 / 133

页数：7

相关论文

共 39 条

[1]

ABRIKOSOV AA, 1961, ZH EKSP TEOR FIZ, V13, P179

[2] PHONON RAMAN-SCATTERING IN SUPERCONDUCTORS [J].

BALSEIRO, CA ;

FALICOV, LM .

PHYSICAL REVIEW LETTERS, 1980, 45 (08) :662-665

[3]

BALSEIRO PB, 1982, PHYS REV B, V26, P4883

[4]

BARAM GO, 1986, JETP LETT+, V44, P376

[5] SYNTHESIS, STRUCTURE AND PHYSICAL-PROPERTIES OF A TWO-DIMENSIONAL ORGANIC METAL, DI[BIS(ETHYLENE-DITHIOLO)TETRATHIOFULVALENE] TRIIODIDE, (BEDT-TTF)2+I3- [J].

BENDER, K ;

HENNIG, I ;

SCHWEITZER, D ;

DIETZ, K ;

ENDRES, H ;

KELLER, HJ .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1984, 108 (3-4) :359-371

[6] RAMAN-SCATTERING FROM SUPERCONDUCTING GAP EXCITATIONS IN SINGLE-CRYSTAL YBA2CU3O7-DELTA [J].

COOPER, SL ;

KLEIN, MV ;

PAZOL, BG ;

RICE, JP ;

GINSBERG, DM .

PHYSICAL REVIEW B, 1988, 37 (10) :5920-5923

[7] GAP ANISOTROPY AND PHONON SELF-ENERGY EFFECTS IN SINGLE-CRYSTAL YBA2CU3O7-DELTA [J].

COOPER, SL ;

SLAKEY, F ;

KLEIN, MV ;

RICE, JP ;

BUKOWSKI, ED ;

GINSBERG, DM .

PHYSICAL REVIEW B, 1988, 38 (16) :11934-11937

[8] HOMOGENEOUS SUPERCONDUCTING STATE AT 8.1 K UNDER AMBIENT PRESSURE IN THE ORGANIC CONDUCTOR BETA-(BEDT-TTF)2I3 [J].

CREUZET, F ;

CREUZET, G ;

JEROME, D ;

SCHWEITZER, D ;

KELLER, HJ .

JOURNAL DE PHYSIQUE LETTRES, 1985, 46 (22) :1079-1085

[9] ORIGIN OF SUPERCONDUCTIVE GLASSY STATE AND EXTRINSIC CRITICAL CURRENTS IN HIGH-TC OXIDES [J].

DEUTSCHER, G ;

MULLER, KA .

PHYSICAL REVIEW LETTERS, 1987, 59 (15) :1745-1747

[10] INTENSITY ANOMALIES OF RAMAN-ACTIVE PHONONS IN THE SUPERCONDUCTING STATE OF YBA2CU3O7-DELTA [J].

FRIEDL, B ;

THOMSEN, C ;

HABERMEIER, HU ;

CARDONA, M .

SOLID STATE COMMUNICATIONS, 1991, 78 (04) :291-294

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