Inelastic Neutron Scattering, Lattice Dynamics and High Pressure Stability of LuVO4

被引：2

作者：

Goel, Prabhatasree ^{[1
]}

Mittal, R. ^{[1
]}

Chaplot, S. L. ^{[1
]}

Loong, C. K. ^{[2
]}

机构：

[1] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India

[2] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou 510275, Peoples R China

来源：

SOLID STATE PHYSICS: PROCEEDINGS OF THE 55TH DAE SOLID STATE PHYSICS SYMPOSIUM 2010, PTS A AND B | 2011年 / 1349卷

关键词：

Phonons; Phase transitions; Inelastic neutron scattering;

D O I：

10.1063/1.3605777

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report here inelastic neutron scattering, lattice dynamics calculations and relative high pressure stability of LuVO4. We have developed transferable interatomic potentials to study the lattice dynamics and model the experimentally obtained phonon density of states in LuVO4. The parameters of the theoretical interatomic potential have been fitted with respect to experimentally available Raman and infrared frequencies and equilibrium structure. We have also studied the stability of the zircon structure at ambient temperature with increasing pressure. We find that zircon phase (I4(1)/amd) goes into a scheelite phase (I4(1)/a) at around 8 GPa which is in excellent agreement with reported value of 7.9 GPa.

引用

页码：141 / +

页数：2

共 4 条

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