Spin-orbit coupling fluctuations as a mechanism of spin decoherence

被引：4
|
作者：
Martens, M. [1 ,2 ]
Franco, G. [1 ,2 ]
Dalal, N. S. [2 ,3 ]
Bertaina, S. [4 ]
Chiorescu, I. [1 ,2 ]
机构：
[1] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA
[2] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
[3] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA
[4] Aix Marseille Univ, CNRS, IM2NP UMR7334, F-13397 Marseille 20, France
来源：
PHYSICAL REVIEW B | 2017年 / 96卷 / 18期
关键词：
ELECTRON-PARAMAGNETIC-RES; RESONANCE; RELAXATION; CRYSTALS;
D O I：
10.1103/PhysRevB.96.180408
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We discuss a general framework to address spin decoherence resulting from fluctuations in a spin Hamiltonian. We performed a systematic study on spin decoherence in the compound K-6[V15As6O42(D2O)]center dot 8D(2)O, using high-field electron spin resonance. By analyzing the anisotropy of resonance linewidths as a function of orientation, temperature, and field, we find that the spin-orbit term is a major decoherence source. The demonstrated mechanism can alter the lifetime of any spin qubit and we discuss how to mitigate it by sample design and field orientation.
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页数：5
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