Interface induced exchange bias effect in LaSrMnO/SrIrO multilayer
arXiv:1905.01170 · doi:10.1016/j.physleta.2019.02.011
Abstract
Epitaxial superlattices of ferromagnetic/paramagnetic LaSrMnO/SrIrO materials have been prepared on SrTiO (100) substrate using pulse laser deposition technique. An unexpected onset of interface magnetic interaction has been observed around 40 K. Interestingly, magnetic exchange bias effect has been observed in both field cooled and zero field cooled magnetization loops, however, the shifting of loop is opposite in both measurements. Exchange bias field vanishes as temperature increases to interface magnetic ordering temperature. Moreover, exchange bias field is found to decrease with increasing cooling field. We believe that tuning of magnetic exchange at interface during field cooling induces this evolution in nature of exchange bias field.
arXiv comment8 pages, 8 figures
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