NMR of 57Fe above the Verwey transition in Al-substituted magnetite

被引：7

作者：

Gamaliy, E

Stepánková, H

Englich, J

Kohout, J

Snezhko, A

Novák, P

Brabers, VAM

机构：

[1] Inst Phys AS CR, Prague 16253 6, Czech Republic

[2] Charles Univ, Fac Math & Phys, Prague 18000 8, Czech Republic

[3] Eindhoven Univ Technol, Dept Phys, NL-5600 MB Eindhoven, Netherlands

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 242卷

关键词：

magnetite; NMR-spin echo;

D O I：

10.1016/S0304-8853(01)01036-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Temperature dependence of Fe-57 NMR was measured above the Verwey transition in three Fe-3 AlxO4 (x = 0, 0.005. 0.03) single crystals. The satellite lines corresponding to Fe (A) which have a single Al (B) nearest neighbor were detected in the NMR spectra of x 0.005 and 0.03 compounds. Temperature dependence of NMR linewidth for x = 0.03 indicates that the electron density becomes inhomogeneous as T --> T-V. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：732 / 734

页数：3