LOCALIZED-TO-ITINERANT ELECTRON TRANSITION IN SR2IR1-XRUXO4

被引：148

作者：

CAVA, RJ ^{[1
]}

BATLOGG, B ^{[1
]}

KIYONO, K ^{[1
]}

TAKAGI, H ^{[1
]}

KRAJEWSKI, JJ ^{[1
]}

PECK, WF ^{[1
]}

RUPP, LW ^{[1
]}

CHEN, CH ^{[1
]}

机构：

[1] UNIV TOKYO,DEPT APPL PHYS,TOKYO 113,JAPAN

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.49.11890

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sr2IrO4 and Sr2RuO4 are both K2NiF4-structure oxides. Sr2IrO4 is a weakly ferromagnetic insulator and Sr2RuO4 a paramagnetic metal. The Sr2Ir1-RuxO4 solid solution displays surprising physical properties. On the substitution of Ru to Sr2IrO4, the Ru first exhibits its expected S = 1 local magnetic moment, but at a critical Ru concentration of x congruent-to 0.7 the local moment disappears, the apparent density of states at E(F) increases, and an insulator-to-metal transition occurs. These changes in physical properties are accompanied by a change in the crystallographic cell parameters.

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页码：11890 / 11896

页数：7

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