Observation of spin-charge separation in one-dimensional SrCuO2

被引：362

作者：

Kim, C

Matsuura, AY

Shen, ZX

Motoyama, N

Eisaki, H

Uchida, S

Tohyama, T

Maekawa, S

机构：

[1] STANFORD UNIV,STANFORD SYNCHROTRON RADIAT LAB,STANFORD,CA 94305

[2] UNIV TOKYO,DEPT SUPERCONDUCT,BUNKYO KU,TOKYO 133,JAPAN

[3] MIE UNIV,FAC EDUC,DEPT PHYS,TSU,MIE 514,JAPAN

[4] NAGOYA UNIV,DEPT APPL PHYS,NAGOYA,AICHI 46401,JAPAN

[5] TOHOKU UNIV,INST MAT RES,SENDAI,MIYAGI 98077,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.77.4054

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Angle-resolved photoemission data from one-dimensional SrCuO2 compounds are found to be qualitatively different from that of two-dimensional Sr2CuO2Cl2. The data can be quantitatively accounted for by the exact diagonalization calculation based on the t-J model. We identify the two underlying bands having approximately 1.2 and 0.3 eV energy dispersion as that of holon and spinon, with their energy scaled by t and J, respectively.

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页码：4054 / 4057

页数：4

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