Localized-to-itinerant electron transition in Sr2Ir1-xRuxO4

R. J. Cava; B. Batlogg; K. Kiyono; H. Takagi; J. J. Krajewski; W. F. Peck; L. W. Rupp; C. H. Chen

doi:10.1103/PhysRevB.49.11890

Localized-to-itinerant electron transition in Sr2Ir1-xRuxO4

R. J. Cava, B. Batlogg, K. Kiyono, H. Takagi, J. J. Krajewski, W. F. Peck, L. W. Rupp, C. H. Chen

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148 Scopus citations

Abstract

Sr2IrO4 and Sr2RuO4 are both K2NiF4-structure oxides. Sr2IrO4 is a weakly ferromagnetic insulator and Sr2RuO4 a paramagnetic metal. The Sr2Ir1-xRuxO4 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 x0.7 the local moment disappears, the apparent density of states at EF increases, and an insulator-to-metal transition occurs. These changes in physical properties are accompanied by a change in the crystallographic cell parameters.

Original language	English (US)
Pages (from-to)	11890-11894
Number of pages	5
Journal	Physical Review B
Volume	49
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.49.11890
State	Published - 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.49.11890

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title = "Localized-to-itinerant electron transition in Sr2Ir1-xRuxO4",

abstract = "Sr2IrO4 and Sr2RuO4 are both K2NiF4-structure oxides. Sr2IrO4 is a weakly ferromagnetic insulator and Sr2RuO4 a paramagnetic metal. The Sr2Ir1-xRuxO4 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 x0.7 the local moment disappears, the apparent density of states at EF increases, and an insulator-to-metal transition occurs. These changes in physical properties are accompanied by a change in the crystallographic cell parameters.",

author = "Cava, {R. J.} and B. Batlogg and K. Kiyono and H. Takagi and Krajewski, {J. J.} and Peck, {W. F.} and Rupp, {L. W.} and Chen, {C. H.}",

year = "1994",

doi = "10.1103/PhysRevB.49.11890",

language = "English (US)",

volume = "49",

pages = "11890--11894",

journal = "Physical Review B",

issn = "0163-1829",

publisher = "American Physical Society",

number = "17",

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TY - JOUR

T1 - Localized-to-itinerant electron transition in Sr2Ir1-xRuxO4

AU - Cava, R. J.

AU - Batlogg, B.

AU - Kiyono, K.

AU - Takagi, H.

AU - Krajewski, J. J.

AU - Peck, W. F.

AU - Rupp, L. W.

AU - Chen, C. H.

PY - 1994

Y1 - 1994

N2 - Sr2IrO4 and Sr2RuO4 are both K2NiF4-structure oxides. Sr2IrO4 is a weakly ferromagnetic insulator and Sr2RuO4 a paramagnetic metal. The Sr2Ir1-xRuxO4 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 x0.7 the local moment disappears, the apparent density of states at EF increases, and an insulator-to-metal transition occurs. These changes in physical properties are accompanied by a change in the crystallographic cell parameters.

AB - Sr2IrO4 and Sr2RuO4 are both K2NiF4-structure oxides. Sr2IrO4 is a weakly ferromagnetic insulator and Sr2RuO4 a paramagnetic metal. The Sr2Ir1-xRuxO4 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 x0.7 the local moment disappears, the apparent density of states at EF 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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U2 - 10.1103/PhysRevB.49.11890

DO - 10.1103/PhysRevB.49.11890

M3 - Article

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JO - Physical Review B

JF - Physical Review B

IS - 17

ER -

Localized-to-itinerant electron transition in Sr2Ir1-xRuxO4

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