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|Title:||Exchange bias in nanoscale antidot arrays|
|Authors:||Tripathy, D. |
|Citation:||Tripathy, D., Adeyeye, A.O., Singh, N. (2008-07-14). Exchange bias in nanoscale antidot arrays. Applied Physics Letters 93 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2959727|
|Abstract:||Exchange bias effects have been systematically investigated in nanoscale Cu (10 nm) / Ni80 Fe20 (30 nm) / Ir75 Mn 25 (30 nm)/Cu (2 nm) multilayer antidot arrays. The antidot arrays exhibit asymmetric and shifted hysteresis loops along the induced exchange bias direction, with higher coercivity and exchange bias field values as compared to a continuous film deposited under identical conditions. The evolution in exchange bias field with increasing antidot diameter is ascribed to the constraints imposed on the domain size in the Ir75 Mn25 layer and reduced ferromagnetic-ferromagnetic interactions in the Ni 80 Fe20 layer. © 2008 American Institute of Physics.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
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