期刊
PHYSICAL REVIEW B
卷 87, 期 19, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.195108
关键词
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资金
- US-Israel Binational Science Foundation
- FP7 Marie Curie IOF Project HJSC
- NSF [CHE-1213247, DMR 1006282]
- Azrieli Foundation
- Yad Hanadiv Rothschild Foundation
- XSEDE [DMR130036]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1213247] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1006282] Funding Source: National Science Foundation
We investigate the dynamical and steady-state spin response of the nonequilibrium Anderson model to magnetic fields, bias voltage, and temperature using a numerically exact method combining a bold-line quantum Monte Carlo technique with a memory function formalism. We obtain converged results in a range of previously inaccessible regimes, in particular calculating the spin dynamics for a range of temperatures down to the crossover to the Kondo domain. We provide predictions for nonequilibrium phenomena, including nonmonotonic temperature dependence of observables at high bias voltage and oscillatory quench dynamics at high magnetic fields.
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