Persistence of well-defined collective excitations in a molten transition metal

被引：36

作者：

Bermejo, FJ

Saboungi, ML

Price, DL

Alvarez, M

Roessli, B

Cabrillo, C

Ivanov, A

机构：

[1] CSIC, E-28006 Madrid, Spain

[2] Argonne Natl Lab, Argonne, IL 60439 USA

[3] ETH Zurich, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

[4] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[5] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.85.106

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Well-defined microscopic collective excitations are found in liquid Ni at 1763 K by means of inelastic neutron scattering. Such excitations are supported by the liquid despite an anharmonic character of its thermodynamic functions. Consideration of the detailed shape of the interionic pair potential provides a way to understand why atomic motions at microscopic scales behave in a way much closer to the alkali metals than to the liquefied rare gases.

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页码：106 / 109

页数：4

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