Weak localization at arbitrary disorder strength in systems with generic spin-dependent fields
Hijano, A., Ilić, S., & Bergeret, F. S. (2024). Weak localization at arbitrary disorder strength in systems with generic spin-dependent fields. Physical Review Research, 6(2), Article 023100. https://doi.org/10.1103/PhysRevResearch.6.023100
Julkaistu sarjassa
Physical Review ResearchPäivämäärä
2024Tekijänoikeudet
© Authors. Published by the American Physical Society
We present a theory of weak localization (WL) in the presence of generic spin-dependent fields, including any type of spin-orbit coupling, Zeeman fields, and nonhomogeneous magnetic textures. We go beyond the usual diffusive approximation, considering systems with short-range disorder of arbitrary strength and obtain a compact expression for the weak localization (WL) correction to the conductivity in terms of the singlet-triplet polarization operator in momentum space. The latter can be directly related to the solution of the quasiclassical Eilenberger equation for superconducting systems. This formulation presents an intuitive framework to explore how the interplay of various spin-dependent fields drives weak (anti) localization. We apply our results to study in-plane magnetoconductivity in systems with spin-orbit coupling and in newly discovered altermagnets. Our results enable straightforward calculation of the WL conductivity at arbitrary disorder strength, which can be particularly useful for interpreting experiments on high-mobility samples.
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American Physical SocietyISSN Hae Julkaisufoorumista
2643-1564Asiasanat
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https://converis.jyu.fi/converis/portal/detail/Publication/213698796
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A.H. acknowledges funding from the University of the Basque Country (Project No. PIF20/05). F.S.B. and A.H. acknowledge financial support from Spanish MCIN/AEI/ 10.13039/501100011033 through Project No. PID2020-114252GB-I00 (SPIRIT) and TED2021-130292B-C42, and the Basque Government through Grant No. IT-1591-22. S.I. is supported by the Academy of Finland Research Fellowship (Project No. 355056).Lisenssi
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