NMR study on a metal-insulator transition in oxysulfides (La1-xCaxO)Cu1-xNixS

被引：2

作者：

Furukawa, Y ^{[1
]}

Ikeda, S ^{[1
]}

Watanabe, H ^{[1
]}

Kumagai, K ^{[1
]}

Mori, K ^{[1
]}

Takano, Y ^{[1
]}

Sekizawa, K ^{[1
]}

机构：

[1] NIHON UNIV,COLL SCI & TECHNOL,DEPT PHYS,TOKYO 101,JAPAN

来源：

PHYSICA C | 1997年 / 282卷

关键词：

D O I：

10.1016/S0921-4534(97)90661-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated electronic states of (La1-xCaxO)Cu1-xNixS using Cu-63 and La-139 nuclear magnetic resonance (NMR). The relaxation process of Cu-63 is confirmed to be quadrupole process for x=0, while the magnetic process dominates in x=0.1 at low temperature (T). Cu-63 spin-lattice relaxation time T-1 in x=0.1 at low T roughly follows the Korringa-like relation of T1T=similar to 50 (sK), suggesting that the system is in a metallic state.

引用

页码：1105 / 1106

页数：2