Hydrogen-induced changes in TbNiAl

H. N. Bordallo; H. Nakotte; J. Eckert; A. V. Kolomiets; L. Havela; A. V. Andreev; H. Drulis; W. Iwasieczko

doi:10.1063/1.367693

Hydrogen-induced changes in TbNiAl

H. N. Bordallo, H. Nakotte, J. Eckert, A. V. Kolomiets, L. Havela, A. V. Andreev, H. Drulis, W. Iwasieczko

Chemistry and Biochemistry

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

8 Scopus citations

Abstract

Neutron diffraction was used to determine the deuterium sites in TbNiAlD_1.28 and TbNiAlD_0.8. Both samples were found to crystallize in the orthorhombic Amm2 space group. Our analysis reveals that deuterium in TbNiAlD_1.28 occupies positions at x=0 and x=1/2 only, while TbNiAlD_0.8 shows the formation of two different phases. For TbNiAlD_1.28, additional magnetic reflections are observed below 16 K indicating antiferromagnetic order. On the other hand, at 10 K, only one of the TbNiAlD_0.8 phases was found to be magnetic. In addition, our study of the localized vibrations of hydrogen in TbNiAlH_1.39 and in its non-magnetic analog YNiAlH_1.35 using inelastic neutron scattering supports the existence of two different hydrogen sites in the saturated hydrides.

Original language	English
Pages (from-to)	6986-6988
Number of pages	3
Journal	Journal of Applied Physics
Volume	83
Issue number	11
DOIs	https://doi.org/10.1063/1.367693
State	Published - 1998

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title = "Hydrogen-induced changes in TbNiAl",

abstract = "Neutron diffraction was used to determine the deuterium sites in TbNiAlD1.28 and TbNiAlD0.8. Both samples were found to crystallize in the orthorhombic Amm2 space group. Our analysis reveals that deuterium in TbNiAlD1.28 occupies positions at x=0 and x=1/2 only, while TbNiAlD0.8 shows the formation of two different phases. For TbNiAlD1.28, additional magnetic reflections are observed below 16 K indicating antiferromagnetic order. On the other hand, at 10 K, only one of the TbNiAlD0.8 phases was found to be magnetic. In addition, our study of the localized vibrations of hydrogen in TbNiAlH1.39 and in its non-magnetic analog YNiAlH1.35 using inelastic neutron scattering supports the existence of two different hydrogen sites in the saturated hydrides.",

author = "Bordallo, {H. N.} and H. Nakotte and J. Eckert and Kolomiets, {A. V.} and L. Havela and Andreev, {A. V.} and H. Drulis and W. Iwasieczko",

year = "1998",

doi = "10.1063/1.367693",

language = "English",

volume = "83",

pages = "6986--6988",

journal = "Journal of Applied Physics",

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TY - JOUR

T1 - Hydrogen-induced changes in TbNiAl

AU - Bordallo, H. N.

AU - Nakotte, H.

AU - Eckert, J.

AU - Kolomiets, A. V.

AU - Havela, L.

AU - Andreev, A. V.

AU - Drulis, H.

AU - Iwasieczko, W.

PY - 1998

Y1 - 1998

N2 - Neutron diffraction was used to determine the deuterium sites in TbNiAlD1.28 and TbNiAlD0.8. Both samples were found to crystallize in the orthorhombic Amm2 space group. Our analysis reveals that deuterium in TbNiAlD1.28 occupies positions at x=0 and x=1/2 only, while TbNiAlD0.8 shows the formation of two different phases. For TbNiAlD1.28, additional magnetic reflections are observed below 16 K indicating antiferromagnetic order. On the other hand, at 10 K, only one of the TbNiAlD0.8 phases was found to be magnetic. In addition, our study of the localized vibrations of hydrogen in TbNiAlH1.39 and in its non-magnetic analog YNiAlH1.35 using inelastic neutron scattering supports the existence of two different hydrogen sites in the saturated hydrides.

AB - Neutron diffraction was used to determine the deuterium sites in TbNiAlD1.28 and TbNiAlD0.8. Both samples were found to crystallize in the orthorhombic Amm2 space group. Our analysis reveals that deuterium in TbNiAlD1.28 occupies positions at x=0 and x=1/2 only, while TbNiAlD0.8 shows the formation of two different phases. For TbNiAlD1.28, additional magnetic reflections are observed below 16 K indicating antiferromagnetic order. On the other hand, at 10 K, only one of the TbNiAlD0.8 phases was found to be magnetic. In addition, our study of the localized vibrations of hydrogen in TbNiAlH1.39 and in its non-magnetic analog YNiAlH1.35 using inelastic neutron scattering supports the existence of two different hydrogen sites in the saturated hydrides.

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VL - 83

SP - 6986

EP - 6988

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 11

ER -

Hydrogen-induced changes in TbNiAl

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