Neutron spectroscopy of γ manganese hydride

被引：22

作者：

Antonov, VE

Cornell, K

Dorner, B

Fedotov, VK

Grosse, G

Kolesnikov, AI

Wagner, FE

Wipf, H

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia

[2] Tech Hsch Darmstadt, Inst Festkorperphys, D-64289 Darmstadt, Germany

[3] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

[4] Tech Univ Munich, Phys Dept E 15, D-85747 Garching, Germany

来源：

SOLID STATE COMMUNICATIONS | 2000年 / 113卷 / 10期

基金：

俄罗斯基础研究基金会;

关键词：

metals; neutron scattering;

D O I：

10.1016/S0038-1098(99)00535-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The vibrational spectrum of fcc gamma-MnH0.41 synthesized under high pressure of gaseous hydrogen was studied by inelastic neutron scattering at 2 K in the range of energy transfers from 25 to 400 meV. The fundamental band of optical hydrogen vibrations consists of a peak at 111 meV with a broad shoulder towards higher energies, which extends up to about 140 meV. At higher energy transfers, the spectrum originates from multiphonon neutron scattering and exhibits approximately harmonic behaviour. The results are compared with the available data for other metal hydrides. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：569 / 572

页数：4

共 24 条

[1]

Antonov V. E., 1991, Soviet Physics - Solid State, V33, P87

[2] Neutron diffraction investigation of the dhcp and hcp iron hydrides and deuterides [J].