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Topological Quantum Computing Open Quantum Systems Decoherence Quantum Simulation

Theory of Josephson transport through spintronics nano-structure

arXiv

Authors: Shiro Kawabata, Yasuhiro Asano, Yukio Tanaka, Satoshi Kashiwaya

Year

2010

Paper ID

9052

Status

Preprint

Abstract Read

~2 min

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Abstract

We study the Josephson transport through ferromagnetic insulators (FIs) by taking into account its band structure explicitly. In the case of the fully polarized FIs (FPFIs), we found the formation of a pi-junction and an atomic-scale 0-pi transition induced by increasing the FI thickness. More remarkably, in the Josephson junction through spin-filter materials such as Eu chalcogenides, the orbital hybridization between the conduction d and the localized f electron gives rise to the pi-junction behavior. Such FI-based pi-junctions can be used to implement highly-coherent solid-state quantum bits.

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We study the Josephson transport through ferromagnetic insulators (FIs) by taking into account its band structure explicitly.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1004.0757 [2] arXiv https://arxiv.org/abs/1004.0757 [3] Publisher https://arxiv.org/abs/1004.0757

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