First- and second-order crossover between quantum and classical regimes for the escape rate of a nanomagnet manipulated by a Josephson current
Employing the instanton technique and the nonlinear perturbation method, we study quantum-classical escape rate crossover for several forms of magnetic anisotropy in a nanomagnet sandwiched between two superconductors called Josephson φ0 junction. It is shown that the phase boundary separating the f...
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| Main Author: | |
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| Format: | Artigo |
| Language: | Inglês |
| Published: |
AIP Publishing LLC
2021-01-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/9.0000031 |
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