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Lee, Ki-Suk
Creative Lab. for Advanced Spin Systems (CLASS)
Research Interests
  • Magnetism, spintronics, spin dynamics, rare-earth free magnet

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An interface-proximity model for switchable interfacial uncompensated antiferromagnetic spins and their role in exchange bias

Cited 6 times inthomson ciCited 9 times inthomson ci
Title
An interface-proximity model for switchable interfacial uncompensated antiferromagnetic spins and their role in exchange bias
Author
Lee, Ki-SukYu, YSKim, SK
Keywords
MAGNETIC-ANISOTROPY; FILMS; BILAYERS
Issue Date
2005-05
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.86, no.19, pp.1 - 3
Abstract
We propose an interface-proximity model that allows us to solve a longstanding puzzle regarding large discrepancies between the experimentally observed and theoretically estimated values of exchange-bias field Heb in coupled ferromagneticantiferromagnetic (FAF) metallic films. In this proposed model, switchable uncompensated (UC) AF spins in contact with an F layer are taken into account as an additionally inserting layer that is chemically or magnetically distinguishable from each of the nominal AF and F layers. Reductions in Heb, enhancements in coercivity, and other exchange-bias behaviors typically observed in experiments are very well reproduced from this model. The switchable interfacial UC region with a sizable thickness, heretofore ignored, plays a crucial role in the exchange bias phenomenon.
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DOI
10.1063/1.1920412
ISSN
0003-6951
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MSE_Journal Papers
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