Structural and magnetic phase transitions of kagome-like compounds REBaCo4O7 (RE=Dy, Ho, Er, Tm, Yb, Lu)

M. Markina; A. N. Vasiliev; N. Nakayama; T. Mizota; Y. Yeda

doi:10.1016/j.jmmm.2009.03.002

Structural and magnetic phase transitions of kagome-like compounds REBaCo₄O₇ (RE=Dy, Ho, Er, Tm, Yb, Lu)

M. Markina
, A. N. Vasiliev
, N. Nakayama
, T. Mizota
, Y. Yeda

Lomonosov Moscow State University
Yamaguchi University
The University of Tokyo

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

42 Scopus citations

Abstract

In a temperature range 5-300 K the specific heat C(T) on a new mixed valence cobalt oxides REBaCo₄O₇ (RE=Dy, Ho, Er, Tm, Yb, Lu) was investigated. The first-order structural phase transitions from hexagonal P6₃mc to orthorhombic Cmc₂1 phase was indicated by a peak-like anomaly in C(T) curves at T_S∼160, 178, 224, and 280 K for RE=Lu, Yb, Tm, and Er correspondingly. The magnetic phase transitions was indicated as the changes of slope on the C(T) curves were found at corresponding temperatures: T_N∼50, 74, 98, and 98 K for RE=Lu, Yb, Tm, and Er, correspondingly.

Original language	English
Pages (from-to)	1249-1250
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	322
Issue number	9-12
DOIs	https://doi.org/10.1016/j.jmmm.2009.03.002
State	Published - May 2010
Externally published	Yes

Keywords

Kagome layered magnet
Mixed valence
Specific heat

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10.1016/j.jmmm.2009.03.002

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title = "Structural and magnetic phase transitions of kagome-like compounds REBaCo4O7 (RE=Dy, Ho, Er, Tm, Yb, Lu)",

abstract = "In a temperature range 5-300 K the specific heat C(T) on a new mixed valence cobalt oxides REBaCo4O7 (RE=Dy, Ho, Er, Tm, Yb, Lu) was investigated. The first-order structural phase transitions from hexagonal P63mc to orthorhombic Cmc21 phase was indicated by a peak-like anomaly in C(T) curves at TS∼160, 178, 224, and 280 K for RE=Lu, Yb, Tm, and Er correspondingly. The magnetic phase transitions was indicated as the changes of slope on the C(T) curves were found at corresponding temperatures: TN∼50, 74, 98, and 98 K for RE=Lu, Yb, Tm, and Er, correspondingly.",

keywords = "Kagome layered magnet, Mixed valence, Specific heat",

author = "M. Markina and Vasiliev, \{A. N.\} and N. Nakayama and T. Mizota and Y. Yeda",

year = "2010",

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doi = "10.1016/j.jmmm.2009.03.002",

language = "English",

volume = "322",

pages = "1249--1250",

journal = "Journal of Magnetism and Magnetic Materials",

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TY - JOUR

T1 - Structural and magnetic phase transitions of kagome-like compounds REBaCo4O7 (RE=Dy, Ho, Er, Tm, Yb, Lu)

AU - Markina, M.

AU - Vasiliev, A. N.

AU - Nakayama, N.

AU - Mizota, T.

AU - Yeda, Y.

PY - 2010/5

Y1 - 2010/5

N2 - In a temperature range 5-300 K the specific heat C(T) on a new mixed valence cobalt oxides REBaCo4O7 (RE=Dy, Ho, Er, Tm, Yb, Lu) was investigated. The first-order structural phase transitions from hexagonal P63mc to orthorhombic Cmc21 phase was indicated by a peak-like anomaly in C(T) curves at TS∼160, 178, 224, and 280 K for RE=Lu, Yb, Tm, and Er correspondingly. The magnetic phase transitions was indicated as the changes of slope on the C(T) curves were found at corresponding temperatures: TN∼50, 74, 98, and 98 K for RE=Lu, Yb, Tm, and Er, correspondingly.

AB - In a temperature range 5-300 K the specific heat C(T) on a new mixed valence cobalt oxides REBaCo4O7 (RE=Dy, Ho, Er, Tm, Yb, Lu) was investigated. The first-order structural phase transitions from hexagonal P63mc to orthorhombic Cmc21 phase was indicated by a peak-like anomaly in C(T) curves at TS∼160, 178, 224, and 280 K for RE=Lu, Yb, Tm, and Er correspondingly. The magnetic phase transitions was indicated as the changes of slope on the C(T) curves were found at corresponding temperatures: TN∼50, 74, 98, and 98 K for RE=Lu, Yb, Tm, and Er, correspondingly.

KW - Kagome layered magnet

KW - Mixed valence

KW - Specific heat

UR - https://www.scopus.com/pages/publications/77949307951

U2 - 10.1016/j.jmmm.2009.03.002

DO - 10.1016/j.jmmm.2009.03.002

M3 - Article

AN - SCOPUS:77949307951

SN - 0304-8853

VL - 322

SP - 1249

EP - 1250

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 9-12

ER -

Structural and magnetic phase transitions of kagome-like compounds REBaCo₄O₇ (RE=Dy, Ho, Er, Tm, Yb, Lu)

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Keywords

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