Deep inelastic neutron scattering from freely rotating molecules

被引：17

作者：

Colognesi, D ^{[1
]}

Degiorgi, E

Pace, E

机构：

[1] CNR, Grp Nazl Struttura Mat, Rome, Italy

[2] UDR Roma Tor Vergata, Ist Nazl Fis Mat, Rome, Italy

[3] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[4] UDR Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

来源：

PHYSICA B | 2001年 / 293卷 / 3-4期

关键词：

inelastic neutron scattering; polyatomic molecules; momentum distribution; impulse approximation;

D O I：

10.1016/S0921-4526(00)00548-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The incoherent structure factor for deep inelastic neutron scattering from freely rotating molecules is determined analytically in the framework of the impulse approximation. The single nucleus momentum distributions of the molecule's constituents are then derived and related to the normal mode decomposition of the internal vibrations. A practical example of deep inelastic neutron scattering response function and single-particle momentum distribution for a symmetric top molecule is provided in the case of a freely rotating ammonia molecule. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：317 / 332

页数：16

共 49 条

[1] Deep inelastic neutron scattering from fluid para- and orthohydrogen [J].