The magnetic properties of BaLaCoIrO6 and Ba3CoIrxRu2-xO9

P. D. Battle; J. G. Gore; R. C. Hollyman; A. V. Powell

The magnetic properties of BaLaCoIrO₆ and Ba₃CoIr_xRu_2-xO₉

P. D. Battle, J. G. Gore, R. C. Hollyman, A. V. Powell

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

The magnetic structure of the antiferromagnetic phase of the pseudo-cubic perovskite BaLaCoIrO₆ has been determined from time-of-flight powder neutron diffraction data collected at a temperature of 4 K. The Co(II) cations adopt a Type II collinear spin structure with an ordered moment of 2.8(2) µ_B per Co(II); the Ir(V) cations do not have a detectable ordered magnetic moment. Magnetic susceptibility measurements on the compounds Ba₃CoIr_xRu_2-xO₉ (0<x=2) resulted in the observation of weak ferromagnetism; the saturation magnetization decreased with increasing Ru content. Comparisons are made between BaLaCoIrO₆ and the spin glass BaLaCoRuO₆, and also between Ba₃CoIr₂O₉ and antiferromagnetic Ba₃CoRu₂O₉. The behaviour of the nominally non-magnetic Ir(V) cations is discussed and contrasted with that of diamagnetic Sb(V) in Ba₃CoSb₂O₉ and Ba₃CoIrSbO₉. © 1995.

Original language	English
Pages (from-to)	110-116
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	218
Issue number	1
Publication status	Published - 15 Feb 1995

Keywords

Antiferromagnetic phase
Magnetic structure
Neutron diffraction

Cite this

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title = "The magnetic properties of BaLaCoIrO6 and Ba3CoIrxRu2-xO9",

abstract = "The magnetic structure of the antiferromagnetic phase of the pseudo-cubic perovskite BaLaCoIrO6 has been determined from time-of-flight powder neutron diffraction data collected at a temperature of 4 K. The Co(II) cations adopt a Type II collinear spin structure with an ordered moment of 2.8(2) µB per Co(II); the Ir(V) cations do not have a detectable ordered magnetic moment. Magnetic susceptibility measurements on the compounds Ba3CoIrxRu2-xO9 (06 and the spin glass BaLaCoRuO6, and also between Ba3CoIr2O9 and antiferromagnetic Ba3CoRu2O9. The behaviour of the nominally non-magnetic Ir(V) cations is discussed and contrasted with that of diamagnetic Sb(V) in Ba3CoSb2O9 and Ba3CoIrSbO9. {\textcopyright} 1995.",

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T1 - The magnetic properties of BaLaCoIrO6 and Ba3CoIrxRu2-xO9

AU - Battle, P. D.

AU - Gore, J. G.

AU - Hollyman, R. C.

AU - Powell, A. V.

PY - 1995/2/15

Y1 - 1995/2/15

N2 - The magnetic structure of the antiferromagnetic phase of the pseudo-cubic perovskite BaLaCoIrO6 has been determined from time-of-flight powder neutron diffraction data collected at a temperature of 4 K. The Co(II) cations adopt a Type II collinear spin structure with an ordered moment of 2.8(2) µB per Co(II); the Ir(V) cations do not have a detectable ordered magnetic moment. Magnetic susceptibility measurements on the compounds Ba3CoIrxRu2-xO9 (06 and the spin glass BaLaCoRuO6, and also between Ba3CoIr2O9 and antiferromagnetic Ba3CoRu2O9. The behaviour of the nominally non-magnetic Ir(V) cations is discussed and contrasted with that of diamagnetic Sb(V) in Ba3CoSb2O9 and Ba3CoIrSbO9. © 1995.

AB - The magnetic structure of the antiferromagnetic phase of the pseudo-cubic perovskite BaLaCoIrO6 has been determined from time-of-flight powder neutron diffraction data collected at a temperature of 4 K. The Co(II) cations adopt a Type II collinear spin structure with an ordered moment of 2.8(2) µB per Co(II); the Ir(V) cations do not have a detectable ordered magnetic moment. Magnetic susceptibility measurements on the compounds Ba3CoIrxRu2-xO9 (06 and the spin glass BaLaCoRuO6, and also between Ba3CoIr2O9 and antiferromagnetic Ba3CoRu2O9. The behaviour of the nominally non-magnetic Ir(V) cations is discussed and contrasted with that of diamagnetic Sb(V) in Ba3CoSb2O9 and Ba3CoIrSbO9. © 1995.

KW - Antiferromagnetic phase

KW - Magnetic structure

KW - Neutron diffraction

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M3 - Article

SN - 0925-8388

VL - 218

SP - 110

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1

ER -

The magnetic properties of BaLaCoIrO₆ and Ba₃CoIr_xRu_2-xO₉

Abstract

Keywords

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