Electron and nuclear spin dynamics in antiferromagnetic molecular rings

被引：64

作者：

Meier, F ^{[1
]}

Loss, D ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.86.5373

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study theoretically the spin dynamics of antiferromagnetic molecular rings, such as the ferric wheel Fe-10. For a single nuclear or impurity spin coupled to one of the electron spins of the ring,we calculate nuclear and electronic spin correlation functions and show that nuclear magnetic resonance (NMR) and electron spin resonance (ESR) techniques can be used to detect coherent tunneling of the Neel vector in these rings. The location of the NMR/ESR resonances gives the tunnel splitting and its linewidth an upper bound on the decoherence rate of the electron spin dynamics. We illustrate the experimental feasibility of our proposal with estimates for Fe-10 molecules.

引用

页码：5373 / 5376

页数：4

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