Direct manipulation of the uncompensated antiferromagnetic spins in exchange coupled system by GeV ion irradiation

作者: Amitesh Paul , N. Paul , C. Trautmann , S. Mattauch , Jaru Jutimoosik

DOI: 10.1063/1.4729472

关键词: NucleationMagnetic domainSpinsElectronCondensed matter physicsSwift heavy ionIonMaterials scienceAntiferromagnetismFerromagnetism

摘要: Incident ion energy to matrix electrons of a material is dissipated within narrow cylinder surrounding the swift heavy path. The temperature lattice exceeds melting point and upon quenching causes nanometric modifications. We present here unique ex situ approach in manipulating uncompensated spins antiferromagnetic layers ferro-/antiferromagnetic exchange coupled systems on scale. use impact relativistic (1–2 GeV) irradiation such systems. find an increase bias field restoration reversal via domain nucleation trained state. These are identified as plausible results ion-induced ordering with little or no effect layer structure. This study demonstrates, therefore, possibility nanoscale tailoring that survive even

参考文章(24)
A. Dunlop, D. Lesueur, Damage creation via electronic excitations in metallic targets part I: Experimental results Radiation Effects and Defects in Solids. ,vol. 126, pp. 123- 128 ,(1993) , 10.1080/10420159308219692
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
Z G Wang, C Dufour, E Paumier, M Toulemonde, The Se sensitivity of metals under swift-heavy-ion irradiation: a transient thermal process Journal of Physics: Condensed Matter. ,vol. 6, pp. 6733- 6750 ,(1994) , 10.1088/0953-8984/6/34/006
D Engel, A Kronenberger, M Jung, H Schmoranzer, A Ehresmann, A Paetzold, K Röll, Exchange anisotropy modification in NiO/NiFe bilayers by ion bombardment Journal of Magnetism and Magnetic Materials. ,vol. 263, pp. 275- 281 ,(2003) , 10.1016/S0304-8853(02)01575-5
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
A. L. Ankudinov, B. Ravel, J. J. Rehr, S. D. Conradson, REAL-SPACE MULTIPLE-SCATTERING CALCULATION AND INTERPRETATION OF X-RAY-ABSORPTION NEAR-EDGE STRUCTURE Physical Review B. ,vol. 58, pp. 7565- 7576 ,(1998) , 10.1103/PHYSREVB.58.7565