Dynamical Spin Polarization of Excess Quasiparticles in Superconductors

Julia S. Meyer; Manuel Houzet; Yuli V. Nazarov

doi:10.1103/PhysRevLett.125.097006

Dynamical Spin Polarization of Excess Quasiparticles in Superconductors

Julia S. Meyer, Manuel Houzet, Yuli V. Nazarov

QN/Nazarov Group

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3 Citations (Scopus)

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Abstract

We show that the annihilation dynamics of excess quasiparticles in superconductors may result in the spontaneous formation of large spin-polarized clusters. This presents a novel scenario for spontaneous spin polarization. We estimate the relevant scales for aluminum, finding the feasibility of clusters with total spin S≃10^{4}ℏ that could be spread over microns. The fluctuation dynamics of such large spins may be detected by measuring the flux noise in a loop hosting a cluster.

Original language	English
Article number	097006
Number of pages	5
Journal	Physical Review Letters
Volume	125
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.125.097006
Publication status	Published - 2020

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title = "Dynamical Spin Polarization of Excess Quasiparticles in Superconductors",

abstract = "We show that the annihilation dynamics of excess quasiparticles in superconductors may result in the spontaneous formation of large spin-polarized clusters. This presents a novel scenario for spontaneous spin polarization. We estimate the relevant scales for aluminum, finding the feasibility of clusters with total spin S≃10\textasciicircum{}\{4\}ℏ that could be spread over microns. The fluctuation dynamics of such large spins may be detected by measuring the flux noise in a loop hosting a cluster.",

author = "Meyer, \{Julia S.\} and Manuel Houzet and Nazarov, \{Yuli V.\}",

year = "2020",

doi = "10.1103/PhysRevLett.125.097006",

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journal = "Physical Review Letters",

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AU - Meyer, Julia S.

AU - Houzet, Manuel

AU - Nazarov, Yuli V.

PY - 2020

Y1 - 2020

N2 - We show that the annihilation dynamics of excess quasiparticles in superconductors may result in the spontaneous formation of large spin-polarized clusters. This presents a novel scenario for spontaneous spin polarization. We estimate the relevant scales for aluminum, finding the feasibility of clusters with total spin S≃10^{4}ℏ that could be spread over microns. The fluctuation dynamics of such large spins may be detected by measuring the flux noise in a loop hosting a cluster.

AB - We show that the annihilation dynamics of excess quasiparticles in superconductors may result in the spontaneous formation of large spin-polarized clusters. This presents a novel scenario for spontaneous spin polarization. We estimate the relevant scales for aluminum, finding the feasibility of clusters with total spin S≃10^{4}ℏ that could be spread over microns. The fluctuation dynamics of such large spins may be detected by measuring the flux noise in a loop hosting a cluster.

UR - https://www.scopus.com/pages/publications/85090874771

U2 - 10.1103/PhysRevLett.125.097006

DO - 10.1103/PhysRevLett.125.097006

M3 - Article

C2 - 32915596

AN - SCOPUS:85090874771

SN - 0031-9007

VL - 125

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

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ER -

Dynamical Spin Polarization of Excess Quasiparticles in Superconductors

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