COHERENT INELASTIC NEUTRON SCATTERING IN NH4CL

被引：20

作者：

SMITH, HG

TRAYLOR, JG

REICHARD.W

机构：

[1] Solid State Division, Oak Ridge National Laboratory, Ridge

[2] Kernforschungszentrum, Karlsruhe

来源：

PHYSICAL REVIEW | 1969年 / 181卷 / 03期

关键词：

D O I：

10.1103/PhysRev.181.1218

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Some normal modes of vibration have been measured in undeuterated ammonium chloride by coherent inelastic neutron scattering utilizing a triple-axis neutron spectrometer. The behavior of the low-energy modes near the λ-type order-disorder phase transition at 242 °K is correlated with the anomalous behavior of the elastic constants in this region. A splitting of the torsional mode has also been observed above the phase transition. © 1969 The American Physical Society.

引用

页码：1218 / &

共 7 条

[1]

BAJOREK A, 1965, INELASTIC SCATTERING, P352

[2] ORDER-DISORDER PHENOMENA .3. EFFECT OF TEMPERATURE AND PRESSURE ON ELASTIC CONSTANTS OF AMMONIUM CHLORIDE [J].