Физика Низких Температур: Том 27, Выпуск 9-10 (Сентябрь 2001), c. 963-966    ( к оглавлению , назад )

Giant magnetooscillations of the Josephson current

L. P. Gor`kov

National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32306, USA and L. D. Landau Institute for Theoretical Physics, Russia

V. Z. Kresin

Lawrence Berkeley Laboratory, University of California, Berkeley, CA 94720
E-mail: vzkresin@lbl.gov

Received June 19, 2001


Josephson current flowing through an antiferromagnetic metallic barrier is studied. We consider the most interesting case of the spin-valve structure when the barrier is formed by ferromagnetic layers ordered antiferromagnetically in the direction perpendicular to the current. The most remarkable feature is an appearance of giant magnetooscillations of the current amplitude.

74.50.+r - Tunneling phenomena; point contacts, weak links, Josephson effects (for SQUIDs, see 85.25.Dq; for Josephson devices, see 85.25.Cp; for Josephson junction arrays, see 74.81.Fa)
74.80.Dm -