CU NUCLEAR-QUADRUPOLE RESONANCE AND MAGNETIC PHASE-TRANSITION IN CUO

被引：34

作者：

ZIOLO, J

BORSA, F

CORTI, M

RIGAMONTI, A

PARMIGIANI, F

机构：

[1] SEZIONE IST NAZL FIS NUCL,I-27100 PAVIA,ITALY

[2] CTR INFORMAZ STUDI ESPERIENZE,DEPT MAT,I-20134 MILAN,ITALY

来源：

JOURNAL OF APPLIED PHYSICS | 1990年 / 67卷 / 09期

关键词：

D O I：

10.1063/1.345996

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Cu-nuclear quadrupole resonance (NQR) frequency and relaxation rates measurements in CuO, in the vicinity of the antiferromagnetic ordering temperature TN, are presented. As T→T+N divergent behaviors of the relaxation rates T-11,2 and an anomalous decrease in the NQR frequency are observed. These effects are discussed in light of the temperature dependence expected for conventional one-dimensional Heisenberg paramagnet and some anomalies are interpreted as possible results of valence fluctuations in the CuO bond character.

引用

页码：5864 / 5866

页数：3

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