Spin state and metal-insulator transition in LaCoO3 and RCoO3 (R = Nd, Sm and Eu)

被引：64

作者：

Itoh, M

Hashimoto, J

Yamaguchi, S

Tokura, Y

机构：

[1] Chiba Univ, Fac Sci, Dept Phys, Inage Ku, Chiba 2638522, Japan

[2] Chiba Univ, Grad Sch Sci & Technol, Inage Ku, Chiba 2638522, Japan

[3] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

来源：

PHYSICA B | 2000年 / 281卷

关键词：

spin state; metal-insulator transition; RCoO3;

D O I：

10.1016/S0921-4526(99)01044-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We made Co-59 NMR measurements up to 800 K to clarify the spin state and the metal-insulator (MI) transition in LaCoO3 and RCoO3 (R = Nd. Sm and Eu). The Co-59 Knight shift K-59 in LaCoO3 has a peak due to the spin state transition From the low-spin to intermediate-spin states at similar to 100 K. However. K-59 in RCoO3 is almost independent of temperature up to the temperature T-M1 similar to 600 K where the MI transition takes place. This means that the spin state in RCoO3 remains the low-spin state up to T-M1. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：510 / 511

页数：2

共 7 条

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[Anonymous], PHYS REV B

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