Excess spin and the dynamics of antiferromagnetic ferritin

被引：75

作者：

Harris, JGE ^{[1
]}

Grimaldi, JE

Awschalom, DD

Chiolero, A

Loss, D

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.60.3453

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Temperature-dependent magnetization measurements on a series of synthetic ferritin proteins containing from 100 to 3000 Fe(III) ions are used to determine the uncompensated moment of these antiferromagnetic particles. The results are compared with recent theories of macroscopic quantum coherence which explicitly include the effect of this excess moment. The scaling of the excess moment with protein size is consistent with a simple model of finite-size effects and sublattice noncompensation. [S0163-1829(99)03429-3].

引用

页码：3453 / 3456

页数：4

共 24 条

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