ON MAGNETIC-RELAXATION IN ANTIFERROMAGNETIC HORSE-SPLEEN FERRITIN PROTEINS

被引：41

作者：

TEJADA, J

ZHANG, XX

机构：

[1] Fac. de Fisica, Barcelona Univ.

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 01期

关键词：

D O I：

10.1088/0953-8984/6/1/025

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report low-temperature magnetic relaxation measurements of nanometre-scale antiferromagnetic horse-spleen ferritin particles. It is argued that the magnetic relaxation signal is due to the excess uncompensated spins. Our key observation is the non-thermal character of the relaxation below 2 K. The observed features are in agreement with theoretical suggestions on quantum tunnelling of the Neel vector between easy directions.

引用

页码：263 / 266

页数：4

共 17 条

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