Will spin-relaxation times in molecular magnets permit quantum information processing?

被引：656

作者：

Ardavan, Arzhang

Rival, Olivier

Morton, John J. L.

Blundell, Stephen J.

Tyryshkin, Alexei M.

Timco, Grigore A.

Winpenny, Richard E. P.

机构：

[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

[3] Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.98.057201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using X-band pulsed electron-spin resonance, we report the intrinsic spin-lattice (T-1) and phasecoherence (T-2) relaxation times in molecular nanomagnets for the first time. In Cr7M heterometallic wheels, with M = Ni and Mn, phase-coherence relaxation is dominated by the coupling of the electron spin to protons within the molecule. In deuterated samples T-2 reaches 3 mu s at low temperatures, which is several orders of magnitude longer than the duration of spin manipulations, satisfying a prerequisite for the deployment of molecular nanomagnets in quantum information applications.

引用

页数：4

共 32 条

[1] Organic and molecular magnets [J].