Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2002-10-06
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
8 pages, 9 figures, submitted to Phys. Rev. B
Scientific paper
10.1103/PhysRevB.67.094515
We present a theory of Andreev reflection in a ferromagnet/superconductor/ferromagnet double junction system. The spin polarized quasiparticles penetrate to the superconductor in the range of penetration depth from the interface by the Andreev reflection. When the thickness of the superconductor is comparable to or smaller than the penetration depth, the spin polarized quasiparticles pass through the superconductor and therefore the electric current depends on the relative orientation of magnetizations of the ferromagnets. The dependences of the magnetoresistance on the thickness of the superconductor, temperature, the exchange field of the ferromagnets and the height of the interfacial barriers are analyzed. Our theory explains recent experimental results well.
Imamura Hiroshi
Maekawa Sadamichi
Takahashi Saburo
Yamashita Taro
No associations
LandOfFree
Andreev Reflection in Ferromagnet/Superconductor/Ferromagnet Double Junction Systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Andreev Reflection in Ferromagnet/Superconductor/Ferromagnet Double Junction Systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Andreev Reflection in Ferromagnet/Superconductor/Ferromagnet Double Junction Systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-397878