Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Spin and current variations in Josephson junctions
Репозиторій DSpace/Manakin
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Spin and current variations in Josephson junctions
Тема:
Сверхпроводимость и мезоскопические структуры
Інший ID:
PACS: 74.50.+r, 75.20.Hr, 73.40.Gk
Посилання:
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.
Підтримка:
This work was supported by the US Department of
Energy under LDRD X1WX, the CFN of the DFG,
and the S. Kovalevskaya award (YM). We thank L.N.
Bulaevskii and G. Schön for discussions.
Дата:
2004
Переглядів:
650
Завантажень:
375
Анотація:
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.
