Origin of magnetism in Al-Mn and Al-Pd-Mn quasicrystals, related crystals and liquids

被引：4

作者：

Trambly, de Laissardiere, G.

Mayou, D.

Simonet, V.

Hippert, F.

Audier, M.

Bellissent, R.

机构：

来源：

Journal of Magnetism and Magnetic Materials | 2001年 / 226卷 / SUPPL. 1期

关键词：

Quasicrystals - Liquid crystals - Aluminum compounds - Crystalline materials - Magnetic moments - Band structure - Mathematical models;

D O I：

10.1016/S0304-8853(01)00008-7

中图分类号：

学科分类号：

摘要：

Whereas most of crystalline Al(Si)-Mn and Al(Si)-Pd-Mn phases are non-magnetic, measurements show the existence of localized magnetic moments on a small fraction of the Mn atoms in quasicrystals and in a few crystalline approximants. We develop a new model that shows that an indirect Mn-Mn interaction via the conduction band is determinant for the existence or not of a magnetic moment, even when Mn-Mn distance is 5A or more. These models allow us to understand experimental measurements. © 2001 Elsevier Science B.V. All rights reserved.

引用

页码：1029 / 1031