Neutron scattering studies of the structure and lattice dynamics of a solid solution of hydrogen in α-manganese

V. K. Fedotov; V. E. Antonov; K. Cornell; G. Grosse; A. I. Kolesnikov; V. V. Sikolenko; V. V. Sumin; F. E. Wagner; H. Wipf

doi:10.1088/0953-8984/10/24/004

Neutron scattering studies of the structure and lattice dynamics of a solid solution of hydrogen in α-manganese

V. K. Fedotov, V. E. Antonov, K. Cornell, G. Grosse, A. I. Kolesnikov, V. V. Sikolenko, V. V. Sumin, F. E. Wagner, H. Wipf

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Abstract

A solid solution of hydrogen in α-Mn, α-MnH_x with x = 0.073, was prepared at 623 K and a hydrogen pressure of 0.85 GPa. A profile analysis of the neutron diffraction patterns measured at 225 K and at 300 K showed that hydrogen in α-MnH_0.073 randomly occupies the interstitial positions 12e (0, 0, 0.538) of the α-Mn host lattice. An inelastic neutron scattering study of α-MnH_0.073 at 90 K revealed a pronounced peak at 6.4 meV and a rather broad optical hydrogen band with peaks at 73, 105 and 123 meV. The splitting of the optical band into three different modes agrees with the low symmetry, 2, of the 12e hydrogen sites. A tentative interpretation is given for the peak at 6.4 meV.

Original language	English
Pages (from-to)	5255-5266
Number of pages	12
Journal	Journal of Physics Condensed Matter
Volume	10
Issue number	24
DOIs	https://doi.org/10.1088/0953-8984/10/24/004
State	Published - Jun 22 1998
Externally published	Yes

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title = "Neutron scattering studies of the structure and lattice dynamics of a solid solution of hydrogen in α-manganese",

abstract = "A solid solution of hydrogen in α-Mn, α-MnHx with x = 0.073, was prepared at 623 K and a hydrogen pressure of 0.85 GPa. A profile analysis of the neutron diffraction patterns measured at 225 K and at 300 K showed that hydrogen in α-MnH0.073 randomly occupies the interstitial positions 12e (0, 0, 0.538) of the α-Mn host lattice. An inelastic neutron scattering study of α-MnH0.073 at 90 K revealed a pronounced peak at 6.4 meV and a rather broad optical hydrogen band with peaks at 73, 105 and 123 meV. The splitting of the optical band into three different modes agrees with the low symmetry, 2, of the 12e hydrogen sites. A tentative interpretation is given for the peak at 6.4 meV.",

author = "Fedotov, {V. K.} and Antonov, {V. E.} and K. Cornell and G. Grosse and Kolesnikov, {A. I.} and Sikolenko, {V. V.} and Sumin, {V. V.} and Wagner, {F. E.} and H. Wipf",

year = "1998",

month = jun,

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doi = "10.1088/0953-8984/10/24/004",

language = "English",

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pages = "5255--5266",

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TY - JOUR

T1 - Neutron scattering studies of the structure and lattice dynamics of a solid solution of hydrogen in α-manganese

AU - Fedotov, V. K.

AU - Antonov, V. E.

AU - Cornell, K.

AU - Grosse, G.

AU - Kolesnikov, A. I.

AU - Sikolenko, V. V.

AU - Sumin, V. V.

AU - Wagner, F. E.

AU - Wipf, H.

PY - 1998/6/22

Y1 - 1998/6/22

N2 - A solid solution of hydrogen in α-Mn, α-MnHx with x = 0.073, was prepared at 623 K and a hydrogen pressure of 0.85 GPa. A profile analysis of the neutron diffraction patterns measured at 225 K and at 300 K showed that hydrogen in α-MnH0.073 randomly occupies the interstitial positions 12e (0, 0, 0.538) of the α-Mn host lattice. An inelastic neutron scattering study of α-MnH0.073 at 90 K revealed a pronounced peak at 6.4 meV and a rather broad optical hydrogen band with peaks at 73, 105 and 123 meV. The splitting of the optical band into three different modes agrees with the low symmetry, 2, of the 12e hydrogen sites. A tentative interpretation is given for the peak at 6.4 meV.

AB - A solid solution of hydrogen in α-Mn, α-MnHx with x = 0.073, was prepared at 623 K and a hydrogen pressure of 0.85 GPa. A profile analysis of the neutron diffraction patterns measured at 225 K and at 300 K showed that hydrogen in α-MnH0.073 randomly occupies the interstitial positions 12e (0, 0, 0.538) of the α-Mn host lattice. An inelastic neutron scattering study of α-MnH0.073 at 90 K revealed a pronounced peak at 6.4 meV and a rather broad optical hydrogen band with peaks at 73, 105 and 123 meV. The splitting of the optical band into three different modes agrees with the low symmetry, 2, of the 12e hydrogen sites. A tentative interpretation is given for the peak at 6.4 meV.

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U2 - 10.1088/0953-8984/10/24/004

DO - 10.1088/0953-8984/10/24/004

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VL - 10

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JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 24

ER -

Neutron scattering studies of the structure and lattice dynamics of a solid solution of hydrogen in α-manganese

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