XANES AND EXAFS STUDY IN (R1, R2-DCNQI)2CU

被引：1

作者：

OSHIMA, K

DOI, T

MARUYAMA, H

MAEDA, H

YAMAZAKI, H

KATO, R

KOBAYASHI, A

NAITO, T

KOBAYASHI, H

机构：

[1] UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU,TOKYO 106,JAPAN

[2] TOHO UNIV,FUNABASHI,CHIBA 274,JAPAN

[3] UNIV TOKYO,TOKYO 113,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷

关键词：

EXAFS; XANES; VALENCE STATE OF CU;

D O I：

10.7567/JJAPS.32S2.824

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

XANES and EXAFS measurements at Cu K-edge are reported for (R1,R2-DCNQI)2Cu. The mixed valence state of Cu proposed in this compound has been confirmed by the XANES study. The systematic XANES and EXAFS studies have revealed differences in the spectra between two groups in this compound (Group I is metallic down to low temperatures, and Group II shows a metal-insulator transition). The local structural change during the metal-insulator transition in the Group II compound has been confirmed using EXAFS analysis. The clear difference in XANES spectra between two groups has been attributed to the difference in the valence states.

引用

页码：824 / 826

页数：3

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