Coherent Manipulation of Electron Spins in the {Cu3} Spin Triangle Complex Impregnated in Nanoporous Silicon

被引：38

作者：

Choi, K. -Y. ^{[1
]}

Wang, Z. ^{[2
,3
]}

Nojiri, H. ^{[4
]}

van Tol, J. ^{[2
,3
]}

Kumar, P. ^{[5
]}

Lemmens, P. ^{[5
]}

Bassil, B. S. ^{[6
]}

Kortz, U. ^{[6
]}

Dalal, N. S. ^{[2
,3
]}

机构：

[1] Chung Ang Univ, Dept Phys, Seoul 156756, South Korea

[2] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA

[3] Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

[4] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[5] TU Braunschweig, Inst Condensed Matter Phys, D-38106 Braunschweig, Germany

[6] Jacobs Univ, Sch Sci & Engn, D-28725 Bremen, Germany

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 06期

关键词：

QUANTUM COMPUTATION; MOLECULAR MAGNETS; QUBITS;

D O I：

10.1103/PhysRevLett.108.067206

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on coherent manipulation of electron spins in an antiferromagnetically coupled spin triangle {Cu-3-X} (X = As, Sb) impregnated in freestanding nanoporous silicon (NS) by using 240 GHz microwave pulses. Rabi oscillations are observed and the spin coherence time is found to be T-2 = 1066 ns at 1.5 K. This demonstrates that the {Cu-3-X}:NS hybrid material provides a promising scheme for implementing spin- based quantum gates. By measuring the spin relaxation times of samples with different symmetries and environments we give evidence that a spin chirality is the main decoherence source of spin triangle molecules.

引用

页数：5

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