SPECTROSCOPIC STUDY OF THE ELECTRONIC STATES OF SINGLE-CRYSTAL CUGEO3

被引：33

作者：

TERASAKI, I ^{[1
]}

ITTI, R ^{[1
]}

KOSHIZUKA, N ^{[1
]}

HASE, M ^{[1
]}

TSUKADA, I ^{[1
]}

UCHINOKURA, K ^{[1
]}

机构：

[1] UNIV TOKYO,DEPT APPL PHYS,BUNKYO KU,TOKYO 113,JAPAN

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.52.295

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic states of CuGeO3 that exhibit a spin-Peierls transition at 14 K were investigated by optical reflectivity and photoemission measurements. A quantitative analysis of the charge-transfer excitation has revealed that the p-d hybridization energy between Cu and O for CuGeO3 is about half of that for La2CuO4. Thus CuGeO3 has a much narrower pd band than high-Tc cuprates, which makes carrier doping difficult in this system. The photoemission measurement also suggests the small p-d transfer energy. © 1995 The American Physical Society.

引用

页码：295 / 298

页数：4

共 25 条

[21] OPTICAL REFLECTIVITY SPECTRA OF SINGLE-CRYSTAL BI2SR2CAN-1CUNO2N+4+X (N=1 AND 2)
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[24] CU-O NETWORK DEPENDENCE OF OPTICAL CHARGE-TRANSFER GAPS AND SPIN-PAIR EXCITATIONS IN SINGLE-CUO2-LAYER COMPOUNDS
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[J]. PHYSICAL REVIEW B, 1990, 41 (16): : 11657 - 11660
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