Induced moment due to perpendicular field cycling in trained exchange bias system

作者: AMITESH PAUL , S MATTAUCH

DOI: 10.1007/S12043-013-0508-5

关键词: PerpendicularNeutron reflectometryCondensed matter physicsMaterials scienceNeutron scatteringExchange biasNeutronSpecular reflectionOpticsMagnetic momentMagnetization

摘要: Depth-sensitive polarized neutron scattering in specular and off-specular mode has recently revealed that perpendicular field cycling brings about a modification the interfacial magnetization of trained exchange coupled interface. We show here by various model fits to our reflectivity data restoration untrained state is not possible case polycrystalline multilayer specimen. This due magnetic moment at interface induced only after cycling, changing initial field-cooled state.

参考文章(17)
A Paul, D. E Bürgler, M Luysberg, P Grünberg, Enhanced exchange bias due to an ultra-thin, non-magnetic insulator spacer layer EPL. ,vol. 68, pp. 233- 239 ,(2004) , 10.1209/EPL/I2003-10312-Y
Amitesh Paul, Claus M. Schneider, Jochen Stahn, Reversal mechanism and suppression of training in an exchange-coupled system Physical Review B. ,vol. 76, pp. 184424- ,(2007) , 10.1103/PHYSREVB.76.184424
Amitesh Paul, Stefan Mattauch, Microscopic origin of training in exchange bias system Applied Physics Letters. ,vol. 95, pp. 092502- ,(2009) , 10.1063/1.3211857
M. D. Stiles, R. D. McMichael, Model for exchange bias in polycrystalline ferromagnet-antiferromagnet bilayers Physical Review B. ,vol. 59, pp. 3722- 3733 ,(1999) , 10.1103/PHYSREVB.59.3722
M. Gierlings, M. J. Prandolini, H. Fritzsche, M. Gruyters, D. Riegel, Change and asymmetry of magnetization reversal for a Co/CoO exchange-bias system Physical Review B. ,vol. 65, pp. 092407- ,(2002) , 10.1103/PHYSREVB.65.092407
G. Scholten, K. D. Usadel, U. Nowak, Coercivity and exchange bias of ferromagnetic/antiferromagnetic multilayers Physical Review B. ,vol. 71, pp. 064413- ,(2005) , 10.1103/PHYSREVB.71.064413
Steven Brems, Kristiaan Temst, Chris Van Haesendonck, Origin of the training effect and asymmetry of the magnetization in polycrystalline exchange bias systems Physical Review Letters. ,vol. 99, pp. 067201- 067201 ,(2007) , 10.1103/PHYSREVLETT.99.067201