A study on the effect of hydrogen in the compounds with ThMn12-type structure

Weihua Mao; Jinbo Yang; Bo Cui; Benpei Cheng; Yingchang Yang; Honglin Du; Baisheng Zhang; Chuntang Ye; Jilian Yang

doi:10.1088/0953-8984/10/12/005

A study on the effect of hydrogen in the compounds with ThMn₁₂-type structure

Weihua Mao, Jinbo Yang, Bo Cui, Benpei Cheng, Yingchang Yang, Honglin Du, Baisheng Zhang, Chuntang Ye, Jilian Yang

Radiation Oncology

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Abstract

The structural and magnetic properties of hydrides with ThMn₁₂-type structure have been studied by means of magnetic measurements, the neutron powder diffraction technique and self-consistent spin-polarized band calculations (LMTO-ASA). We found that the hydrides retain the ThMn₁₂-type structure, but with an increase of unit-cell volume. The neutron diffraction results indicate that hydrogen atoms occupy the interstitial 2b sites. Magnetic measurements carried out on YFe₁₀Mo₂, YFe_10.5V_x, YFe₁₁Ti and their hydrides show that both the Curie temperature and the saturation magnetization can be enhanced by introducing interstitial hydrogen atoms. Band-structure calculations and spin-fluctuation theory give a fair description of the enhancement of the magnetization and Curie temperature.

Original language	English (US)
Pages (from-to)	2611-2616
Number of pages	6
Journal	Journal of Physics Condensed Matter
Volume	10
Issue number	12
DOIs	https://doi.org/10.1088/0953-8984/10/12/005
State	Published - Mar 30 1998

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.1088/0953-8984/10/12/005

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title = "A study on the effect of hydrogen in the compounds with ThMn12-type structure",

abstract = "The structural and magnetic properties of hydrides with ThMn12-type structure have been studied by means of magnetic measurements, the neutron powder diffraction technique and self-consistent spin-polarized band calculations (LMTO-ASA). We found that the hydrides retain the ThMn12-type structure, but with an increase of unit-cell volume. The neutron diffraction results indicate that hydrogen atoms occupy the interstitial 2b sites. Magnetic measurements carried out on YFe10Mo2, YFe10.5Vx, YFe11Ti and their hydrides show that both the Curie temperature and the saturation magnetization can be enhanced by introducing interstitial hydrogen atoms. Band-structure calculations and spin-fluctuation theory give a fair description of the enhancement of the magnetization and Curie temperature.",

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T1 - A study on the effect of hydrogen in the compounds with ThMn12-type structure

AU - Mao, Weihua

AU - Yang, Jinbo

AU - Cui, Bo

AU - Cheng, Benpei

AU - Yang, Yingchang

AU - Du, Honglin

AU - Zhang, Baisheng

AU - Ye, Chuntang

AU - Yang, Jilian

PY - 1998/3/30

Y1 - 1998/3/30

N2 - The structural and magnetic properties of hydrides with ThMn12-type structure have been studied by means of magnetic measurements, the neutron powder diffraction technique and self-consistent spin-polarized band calculations (LMTO-ASA). We found that the hydrides retain the ThMn12-type structure, but with an increase of unit-cell volume. The neutron diffraction results indicate that hydrogen atoms occupy the interstitial 2b sites. Magnetic measurements carried out on YFe10Mo2, YFe10.5Vx, YFe11Ti and their hydrides show that both the Curie temperature and the saturation magnetization can be enhanced by introducing interstitial hydrogen atoms. Band-structure calculations and spin-fluctuation theory give a fair description of the enhancement of the magnetization and Curie temperature.

AB - The structural and magnetic properties of hydrides with ThMn12-type structure have been studied by means of magnetic measurements, the neutron powder diffraction technique and self-consistent spin-polarized band calculations (LMTO-ASA). We found that the hydrides retain the ThMn12-type structure, but with an increase of unit-cell volume. The neutron diffraction results indicate that hydrogen atoms occupy the interstitial 2b sites. Magnetic measurements carried out on YFe10Mo2, YFe10.5Vx, YFe11Ti and their hydrides show that both the Curie temperature and the saturation magnetization can be enhanced by introducing interstitial hydrogen atoms. Band-structure calculations and spin-fluctuation theory give a fair description of the enhancement of the magnetization and Curie temperature.

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A study on the effect of hydrogen in the compounds with ThMn₁₂-type structure

Abstract

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