HEAT-CAPACITY AND NMR-STUDIES ON ELECTRON CORRELATIONS IN CA1-XYXVO3 AND SR1-XLAXTIO3

被引：11

作者：

KUMAGAI, K ^{[1
]}

KAWANO, K ^{[1
]}

SUZUKI, T ^{[1
]}

TAKAHASHI, H ^{[1
]}

KASUYA, M ^{[1
]}

FUJISHIMA, Y ^{[1
]}

TAGUCHI, Y ^{[1
]}

OKADA, Y ^{[1
]}

TOKURA, Y ^{[1
]}

机构：

[1] UNIV TOKYO, FAC SCI, DEPT PHYS, TOKYO 113, JAPAN

来源：

PHYSICA B-CONDENSED MATTER | 1993年 / 186-88卷

关键词：

D O I：

10.1016/0921-4526(93)90776-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The carrier doping dependence of electronic structure is investigated by means of heat capacity and V NMR measurements in titanium and vanadium oxide compounds. The effective electron masses are enhanced near the metal-insulator transition boundary in Ca1-xYxVO3 and Sr1-xLaxTiO3, indicating a significant increase in electron correlations with carrier filling. The hyperfine field of V-51 is found to be 246kOe in the magnetically ordered state of YVO3. The nuclear spin-lattice relaxation rate of V-51 in Ca1-xVYxO3 at least for x < 0.4 obeys the Korringa relation (T1T = constant), indicating the metallic electronic state at the V site.

引用

页码：1030 / 1033

页数：4

共 12 条

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