INFRARED OPTICAL-PROPERTIES OF THE DEUTERATED FORM OF THE 10K ORGANIC SUPERCONDUCTOR (BEDT-TTF)2[CU(NCS)2]

被引：33

作者：

KORNELSEN, K

ELDRIDGE, J

WANG, HH

WILLIAMS, JM

机构：

[1] ARGONNE NATL LAB,DEPT CHEM,ARGONNE,IL 60439

[2] ARGONNE NATL LAB,DEPT MAT,ARGONNE,IL 60439

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 74卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0038-1098(90)90336-A

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Polarized reflectivity measurements at 295K, 100K, 50K and 25K are reported for (deuterated BEDT-TTF)2 [Cu(NCS)2] from 200 cm-1 to 6000 cm-1. The optical conductivities obtained from Kramers-Kronig analyses show a dramatic increase in the far-infrared below 50K, and a mid-infrared band which is a maximum at 100K. The vibrational features have been assigned to a predominant mixture of normally-inactive ag modes and normally-active b2u modes of the ET molecule. A few of both types couple strongly to the charge carriers, and in particular appear to couple to those that oscillate between dimers oriented perpendicular to each other. © 1990.

引用

收藏

页码：501 / 507

页数：7

相关论文

共 16 条

[1] TEMPERATURE-DEPENDENCE OF THE FAR-INFRARED TRANSMISSION SPECTRUM, FOR RADIATION POLARIZED PERPENDICULAR TO THE CHAINS, OF TETRATHIAFULVALENE TETRACYANOQUINODIMETHANE [J].

ELDRIDGE, JE ;

BATES, FE .

PHYSICAL REVIEW B, 1982, 26 (04) :1590-1596

[2] LOW-TEMPERATURE, SMALL-SAMPLE REFLECTIVITY MEASUREMENTS IN A COMMERCIAL RAPID-SCAN MICHELSON INTERFEROMETER [J].

ELDRIDGE, JE ;

HOMES, CC .

INFRARED PHYSICS, 1989, 29 (01) :143-148

[3] OBSERVATION OF 2 DIFFERENT -C-C-H BENDING MODES IN THE AMBIENT-PRESSURE ORGANIC SUPERCONDUCTOR KAPPA-(ET)2CU(NCS)2 BY POLARIZED INFRARED REFLECTANCE MEASUREMENTS AND IMPLICATIONS ON ITS STRUCTURAL AND PHYSICAL-PROPERTIES [J].

FERRARO, JR ;

WANG, HH ;

GEISER, U ;

KINI, AM ;

BENO, MA ;

WILLIAMS, JM ;

HILL, S ;

WHANGBO, MH ;

EVAIN, M .

SOLID STATE COMMUNICATIONS, 1988, 68 (10) :917-921

[4] SUPERCONDUCTIVITY AT 10-K AND AMBIENT PRESSURE IN THE ORGANIC METAL (BEDT-TTF)2 CU(SCN)2 [J].

GARTNER, S ;

GOGU, E ;

HEINEN, I ;

KELLER, HJ ;

KLUTZ, T ;

SCHWEITZER, D .

SOLID STATE COMMUNICATIONS, 1988, 65 (12) :1531-1534

[5] LATTICE-MODE COUPLING TO THE CHARGE-DENSITY WAVE IN (TMTSF)2REO4 (WHERE TMTSF IS BIS-TETRAMETHYLTETRASELENAFULVALENE) [J].

HOMES, CC ;

ELDRIDGE, JE .

PHYSICAL REVIEW B, 1989, 40 (09) :6138-6143

[6] OPTICAL-PROPERTIES OF THE NEW ORGANIC SUPERCONDUCTOR (BEDT-TTF)2CU(SCN)2 [J].

KAPLUNOV, MG ;

KUSHCH, ND ;

YAGUBSKII, EB .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1988, 110 (02) :K111-K116

[7] OPTICAL-PROPERTIES OF THE 10-K ORGANIC SUPERCONDUCTOR (BEDT-TTF)2[CU(SCN)2] [J].

KORNELSEN, K ;

ELDRIDGE, JE ;

HOMES, CC ;

WANG, HH ;

WILLIAMS, JM .

SOLID STATE COMMUNICATIONS, 1989, 72 (05) :475-480

[8] ELECTRON MOLECULAR VIBRATION COUPLING IN VIBRATIONAL-SPECTRA OF BEDT-TTF BASED RADICAL CATION SALTS [J].

KOZLOV, ME ;

POKHODNIA, KI ;

YURCHENKO, AA .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1989, 45 (04) :437-444

[9] THE ASSIGNMENT OF FUNDAMENTAL VIBRATIONS OF BEDT-TTF AND BEDT-TTF-D8 [J].

KOZLOV, ME ;

POKHODNIA, KI ;

YURCHENKO, AA .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1987, 43 (03) :323-329

[10]

Nakamoto K., 1986, INFRARED RAMAN SPECT, P283