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Spin related effects in magnetic mesoscopic systems
Author(s) -
Barnaś J.,
Dugaev V.,
Krompiewski S.,
Martinek J.,
Rudziński W.,
Świrkowicz R.,
Weymann I.,
Wilczyński M.
Publication year - 2003
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200301663
Subject(s) - mesoscopic physics , spintronics , condensed matter physics , ferromagnetism , spin (aerodynamics) , nanomagnet , electrode , spin polarization , materials science , relaxation (psychology) , physics , magnetic field , magnetization , quantum mechanics , electron , psychology , social psychology , thermodynamics
Abstract Spin effects in transport properties of double‐barrier mesoscopic junctions are analyzed and their possible applications in spintronics devices are discussed. In a general case, external electrodes of the junctions are ferromagnetic and the central electrode is either a nonmagnetic metallic grain or a semiconducting quantum dot. Transport characteristics depend then on magnetic configuration of the system. When the spin relaxation time on the central electrode is sufficiently long, measurable spin effects can also occur in entirely nonmagnetic devices.