A spin glass state in Ba                         3                         TiRu                         2                         O                         9

Loi T. Nguyen; R. J. Cava

doi:10.1016/j.jmmm.2018.12.087

A spin glass state in Ba ₃ TiRu ₂ O ₉

Loi T. Nguyen, R. J. Cava

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

10 Scopus citations

Abstract

The magnetic properties of Ba ₃ TiRu ₂ O ₉ , whose crystal structure is based on stacked triangular planar lattices of M ₂ O ₉ dimers and single MO ₆ octahedra, are reported. The system is magnetically disturbed by a substantial amount of Ti/Ru chemical disorder. The Weiss temperature and effective magnetic moment were found to be −29.5 K and 1.82 μ _B /f.u. respectively, and a bifurcation in the zero field cooled and field cooled magnetic susceptibility is observed below 4.7 K, suggesting that this is a compositionally-disordered spin-glass system. The material is a semiconductor with an activation energy for charge transport of approximately 0.14 eV.

Original language	English (US)
Pages (from-to)	334-336
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	476
DOIs	https://doi.org/10.1016/j.jmmm.2018.12.087
State	Published - Apr 15 2019

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Keywords

Magnetic frustration
Ruthenium dimers
Spin glass
Triangular lattice

Access to Document

10.1016/j.jmmm.2018.12.087

Cite this

Nguyen, L. T., & Cava, R. J. (2019). A spin glass state in Ba ₃ TiRu ₂ O ₉ Journal of Magnetism and Magnetic Materials, 476, 334-336. https://doi.org/10.1016/j.jmmm.2018.12.087

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title = " A spin glass state in Ba 3 TiRu 2 O 9 ",

abstract = " The magnetic properties of Ba 3 TiRu 2 O 9 , whose crystal structure is based on stacked triangular planar lattices of M 2 O 9 dimers and single MO 6 octahedra, are reported. The system is magnetically disturbed by a substantial amount of Ti/Ru chemical disorder. The Weiss temperature and effective magnetic moment were found to be −29.5 K and 1.82 μ B /f.u. respectively, and a bifurcation in the zero field cooled and field cooled magnetic susceptibility is observed below 4.7 K, suggesting that this is a compositionally-disordered spin-glass system. The material is a semiconductor with an activation energy for charge transport of approximately 0.14 eV.",

keywords = "Magnetic frustration, Ruthenium dimers, Spin glass, Triangular lattice",

author = "Nguyen, {Loi T.} and Cava, {R. J.}",

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doi = "10.1016/j.jmmm.2018.12.087",

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Nguyen, LT & Cava, RJ 2019, ' A spin glass state in Ba ₃ TiRu ₂ O ₉ ', Journal of Magnetism and Magnetic Materials, vol. 476, pp. 334-336. https://doi.org/10.1016/j.jmmm.2018.12.087

A spin glass state in Ba ₃ TiRu ₂ O ₉ . / Nguyen, Loi T.; Cava, R. J.
In: Journal of Magnetism and Magnetic Materials, Vol. 476, 15.04.2019, p. 334-336.

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

TY - JOUR

T1 - A spin glass state in Ba 3 TiRu 2 O 9

AU - Nguyen, Loi T.

AU - Cava, R. J.

PY - 2019/4/15

Y1 - 2019/4/15

N2 - The magnetic properties of Ba 3 TiRu 2 O 9 , whose crystal structure is based on stacked triangular planar lattices of M 2 O 9 dimers and single MO 6 octahedra, are reported. The system is magnetically disturbed by a substantial amount of Ti/Ru chemical disorder. The Weiss temperature and effective magnetic moment were found to be −29.5 K and 1.82 μ B /f.u. respectively, and a bifurcation in the zero field cooled and field cooled magnetic susceptibility is observed below 4.7 K, suggesting that this is a compositionally-disordered spin-glass system. The material is a semiconductor with an activation energy for charge transport of approximately 0.14 eV.

AB - The magnetic properties of Ba 3 TiRu 2 O 9 , whose crystal structure is based on stacked triangular planar lattices of M 2 O 9 dimers and single MO 6 octahedra, are reported. The system is magnetically disturbed by a substantial amount of Ti/Ru chemical disorder. The Weiss temperature and effective magnetic moment were found to be −29.5 K and 1.82 μ B /f.u. respectively, and a bifurcation in the zero field cooled and field cooled magnetic susceptibility is observed below 4.7 K, suggesting that this is a compositionally-disordered spin-glass system. The material is a semiconductor with an activation energy for charge transport of approximately 0.14 eV.

KW - Magnetic frustration

KW - Ruthenium dimers

KW - Spin glass

KW - Triangular lattice

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Nguyen LT, Cava RJ. A spin glass state in Ba ₃ TiRu ₂ O ₉ Journal of Magnetism and Magnetic Materials. 2019 Apr 15;476:334-336. doi: 10.1016/j.jmmm.2018.12.087