Strong renormalization of phonon frequencies in superconducting MgB2 and related compounds

被引：4

作者：

Renker, B

Schober, H

Adelmann, P

Bohnen, P

Ernst, D

Heid, R

Schweiss, P

Wolf, T

机构：

[1] Forschungszentrum Karlsruhe, IFP, D-76021 Karlsruhe, Germany

[2] Inst Laue Langevin, F-38042 Grenoble, France

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2003年 / 131卷 / 3-4期

关键词：

Boron; Magnetic Material; Related Compound; Phonon Frequency; Inelastic Neutron;

D O I：

10.1023/A:1022926530542

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on recent Raman- and inelastic neutron scattering measurements on Mg1-xAlxB2, LiBC and TMB2 (TM=transition metal). All materials crystallize in the AlB2 structure and show in particular for MgB2 a pronounced anharmonic behavior for the high energy in-plane boron mode. Part of our analysis are "ab initio" calculations.

引用

页码：411 / 415

页数：5