Influence of substitution in Al sublattice on 5f band metamagnetism of UCoAl

A. V. Andreev; V. Sechovský; N. V. Mushnikov; T. Goto; Y. Homma; Y. Shiokawa

doi:10.1016/S0925-8388(00)00815-X

Influence of substitution in Al sublattice on 5f band metamagnetism of UCoAl

A. V. Andreev, V. Sechovský, N. V. Mushnikov, T. Goto, Y. Homma, Y. Shiokawa

Materials Processing and Characterization Division

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

10 Citations (Scopus)

Abstract

The evolution of the crystal structure parameters and the magnetic behavior in the UCoAl_1-xSn_x and UCoAl_1-xIn_x solid solutions was studied. The substitutions of Sn and In for Al in UCoAl lead to a rapid destabilization of metamagnetic phenomena and the appearance of ferromagnetism already for small amounts of substitutions (x ≈ 0.02). The Curie temperature (T_C) and the spontaneous magnetization (M_s) in the UCoAl_1-xIn_x compounds increase monotonously with x over the entire solubility range 0<x≤ 0.2. The Sn substitutions lead to a more complicated development of T_c and M_s, both showing a minimum with x at approximately 0.20-0.25. For higher Sn content, the material becomes magnetically hard showing a rectangular hysteresis loop, H_creaching 1 T in UCoSn. The role of the Al, Ga, In and Sn p-electron states in the electronic structure and the evolution of 5f-electron magnetism is discussed.

Original language	English
Pages (from-to)	72-77
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	306
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(00)00815-X
Publication status	Published - 2000 Jun 23

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0925-8388(00)00815-X

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title = "Influence of substitution in Al sublattice on 5f band metamagnetism of UCoAl",

abstract = "The evolution of the crystal structure parameters and the magnetic behavior in the UCoAl1-xSnx and UCoAl1-xInx solid solutions was studied. The substitutions of Sn and In for Al in UCoAl lead to a rapid destabilization of metamagnetic phenomena and the appearance of ferromagnetism already for small amounts of substitutions (x ≈ 0.02). The Curie temperature (TC) and the spontaneous magnetization (Ms) in the UCoAl1-xInx compounds increase monotonously with x over the entire solubility range 0c and Ms, both showing a minimum with x at approximately 0.20-0.25. For higher Sn content, the material becomes magnetically hard showing a rectangular hysteresis loop, Hcreaching 1 T in UCoSn. The role of the Al, Ga, In and Sn p-electron states in the electronic structure and the evolution of 5f-electron magnetism is discussed.",

author = "Andreev, {A. V.} and V. Sechovsk{\'y} and Mushnikov, {N. V.} and T. Goto and Y. Homma and Y. Shiokawa",

note = "Funding Information: The work is supported by grant 202/99/0184 of the Grant Agency of the Czech Republic and grant A1010018 of the Grant Agency of Academy of Sciences of the Czech Republic.",

year = "2000",

month = jun,

day = "23",

doi = "10.1016/S0925-8388(00)00815-X",

language = "English",

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pages = "72--77",

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T1 - Influence of substitution in Al sublattice on 5f band metamagnetism of UCoAl

AU - Andreev, A. V.

AU - Sechovský, V.

AU - Mushnikov, N. V.

AU - Goto, T.

AU - Homma, Y.

AU - Shiokawa, Y.

N1 - Funding Information: The work is supported by grant 202/99/0184 of the Grant Agency of the Czech Republic and grant A1010018 of the Grant Agency of Academy of Sciences of the Czech Republic.

PY - 2000/6/23

Y1 - 2000/6/23

N2 - The evolution of the crystal structure parameters and the magnetic behavior in the UCoAl1-xSnx and UCoAl1-xInx solid solutions was studied. The substitutions of Sn and In for Al in UCoAl lead to a rapid destabilization of metamagnetic phenomena and the appearance of ferromagnetism already for small amounts of substitutions (x ≈ 0.02). The Curie temperature (TC) and the spontaneous magnetization (Ms) in the UCoAl1-xInx compounds increase monotonously with x over the entire solubility range 0c and Ms, both showing a minimum with x at approximately 0.20-0.25. For higher Sn content, the material becomes magnetically hard showing a rectangular hysteresis loop, Hcreaching 1 T in UCoSn. The role of the Al, Ga, In and Sn p-electron states in the electronic structure and the evolution of 5f-electron magnetism is discussed.

AB - The evolution of the crystal structure parameters and the magnetic behavior in the UCoAl1-xSnx and UCoAl1-xInx solid solutions was studied. The substitutions of Sn and In for Al in UCoAl lead to a rapid destabilization of metamagnetic phenomena and the appearance of ferromagnetism already for small amounts of substitutions (x ≈ 0.02). The Curie temperature (TC) and the spontaneous magnetization (Ms) in the UCoAl1-xInx compounds increase monotonously with x over the entire solubility range 0c and Ms, both showing a minimum with x at approximately 0.20-0.25. For higher Sn content, the material becomes magnetically hard showing a rectangular hysteresis loop, Hcreaching 1 T in UCoSn. The role of the Al, Ga, In and Sn p-electron states in the electronic structure and the evolution of 5f-electron magnetism is discussed.

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

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ER -

Influence of substitution in Al sublattice on 5f band metamagnetism of UCoAl

Abstract

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