Knight shift, electric-field gradient, and electronic state in the spin-Peierls compound CuGeO3: Cu-63,Cu-65 NMR in a single crystal

被引：19

作者：

Itoh, M ^{[1
]}

Sugahara, M ^{[1
]}

Yamauchi, T ^{[1
]}

Ueda, Y ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.53.11606

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cu-63,Cu-65 NMR measurements have been performed to study Knight shift and electric-field gradient (EFG) tensors in the spin-Peierls (SP) compound CuGeO3, which undergoes the SP transition at T(SP)similar to 14 K, using a single crystal. From the numerical analysis of the Cu-63,Cu-65 NMR spectra based on a nuclear Hamiltonian including Zeeman and electric quadrupole interactions, we have precisely determined the principal values and axes of the Knight shift and EFG tensors. Based on theses results, the orbital susceptibility and hyperfine interaction are discussed within a Cu2+ single-ion model in a rhombic crystal field. Consequently, the crystal field parameters are obtained.

引用

页码：11606 / 11612

页数：7

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