Spin and current variations in Josephson junctions

We study the dynamics of a single spin embedded in the tunneling barrier between two superconductors.
 As a consequence of pair correlations in the superconducting state, the spin displays
 rich and unusual dynamics. To properly describe the time evolution of the spin we derive the e...

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Datum:2004
Hauptverfasser: Shnirman, A., Nussinov, Z., Jian-Xin Zhu, Balatsky, A.V., Makhlin, Yu.
Format: Artikel
Sprache:Englisch
Veröffentlicht: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2004
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Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/119838
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Spin and current variations in Josephson junctions / A. Shnirman, Z. Nussinov, Jian-Xin Zhu, A.V. Balatsky, and Yu. Makhlin // Физика низких температур. — 2004. — Т. 30, № 7-8. — С. 834-840. — Бібліогр.: 14 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
Beschreibung
Zusammenfassung:We study the dynamics of a single spin embedded in the tunneling barrier between two superconductors.
 As a consequence of pair correlations in the superconducting state, the spin displays
 rich and unusual dynamics. To properly describe the time evolution of the spin we derive the effective
 Keldysh action for the spin. The superconducting correlations lead to an effective spin action,
 which is nonlocal in time, leading to unconventional precession. We further illustrate how the current
 is modulated by this novel spin dynamics.
ISSN:0132-6414