Theory of Josephson effect in d-wave superconductor/diffusive ferromagnet/d-wave superconductor junctions

T. Yokoyama; Y. Tanaka; Alexandre Avraamovitch Golubov

doi:10.1016/j.jmmm.2006.10.574

Theory of Josephson effect in d-wave superconductor/diffusive ferromagnet/d-wave superconductor junctions

T. Yokoyama, Y. Tanaka, Alexandre Avraamovitch Golubov

Faculty of Science and Technology

Research output: Contribution to journal › Article › Academic

2 Citations (Scopus)

1 Downloads (Pure)

Abstract

We study Josephson effect in d-wave superconductor/diffusive ferromagnet/d-wave superconductor junctions, changing the exchange field and the angles between the normal to the interfaces and the crystal axes of d-wave superconductors. We find a 0–π transition at a certain value of the exchange field. In the presence of midgap Andreev resonant states (MARS), the maximum Josephson current has a double peak structure as a function of temperature due to the exchange field and the competition between the proximity effect and the MARS.

Original language	Undefined
Pages (from-to)	498-500
Journal	Journal of magnetism and magnetic materials
Volume	310
Issue number	2, Part 1
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.574
Publication status	Published - 2007

Keywords

Midgap Andreev resonant states
π junctions
IR-78825
Proximity effect

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10.1016/j.jmmm.2006.10.574

Cite this

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abstract = "We study Josephson effect in d-wave superconductor/diffusive ferromagnet/d-wave superconductor junctions, changing the exchange field and the angles between the normal to the interfaces and the crystal axes of d-wave superconductors. We find a 0–π transition at a certain value of the exchange field. In the presence of midgap Andreev resonant states (MARS), the maximum Josephson current has a double peak structure as a function of temperature due to the exchange field and the competition between the proximity effect and the MARS.",

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T1 - Theory of Josephson effect in d-wave superconductor/diffusive ferromagnet/d-wave superconductor junctions

AU - Yokoyama, T.

AU - Tanaka, Y.

AU - Golubov, Alexandre Avraamovitch

PY - 2007

Y1 - 2007

N2 - We study Josephson effect in d-wave superconductor/diffusive ferromagnet/d-wave superconductor junctions, changing the exchange field and the angles between the normal to the interfaces and the crystal axes of d-wave superconductors. We find a 0–π transition at a certain value of the exchange field. In the presence of midgap Andreev resonant states (MARS), the maximum Josephson current has a double peak structure as a function of temperature due to the exchange field and the competition between the proximity effect and the MARS.

AB - We study Josephson effect in d-wave superconductor/diffusive ferromagnet/d-wave superconductor junctions, changing the exchange field and the angles between the normal to the interfaces and the crystal axes of d-wave superconductors. We find a 0–π transition at a certain value of the exchange field. In the presence of midgap Andreev resonant states (MARS), the maximum Josephson current has a double peak structure as a function of temperature due to the exchange field and the competition between the proximity effect and the MARS.

KW - Midgap Andreev resonant states

KW - π junctions

KW - IR-78825

KW - Proximity effect

U2 - 10.1016/j.jmmm.2006.10.574

DO - 10.1016/j.jmmm.2006.10.574

M3 - Article

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VL - 310

SP - 498

EP - 500

JO - Journal of magnetism and magnetic materials

JF - Journal of magnetism and magnetic materials

IS - 2, Part 1

ER -