Angle-dependent Ni2+ x-ray magnetic linear dichroism: Interfacialcoupling revisited

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Using x ray magnetic linear dichroism (XMLD) for magnetometry requires detailed knowledge of its dependence on the relative orientation of polarization, magnetic moments, and crystallographic axes. We show that Ni{sup 2+} L{sub 2,3} XMLD in cubic lattices has to be described as linear combination of two fundamental spectra - not one as previously assumed. The spectra are calculated using atomic multiplet theory and the angular dependence is derived from crystal field symmetry. Applying our results to Co/NiO(001) interfaces, we find perpendicular coupling between Ni and Co moments.

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Arenholz, Elke; van der Laan, Gerrit; Chopdekar, Rajesh V. & Suzuki, Yuri August 25, 2007.

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Using x ray magnetic linear dichroism (XMLD) for magnetometry requires detailed knowledge of its dependence on the relative orientation of polarization, magnetic moments, and crystallographic axes. We show that Ni{sup 2+} L{sub 2,3} XMLD in cubic lattices has to be described as linear combination of two fundamental spectra - not one as previously assumed. The spectra are calculated using atomic multiplet theory and the angular dependence is derived from crystal field symmetry. Applying our results to Co/NiO(001) interfaces, we find perpendicular coupling between Ni and Co moments.

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  • Journal Name: Physical Review Letters; Journal Volume: 98; Related Information: Journal Publication Date: 05/11/2007

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  • Report No.: LBNL--62698
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.1103/PhysRevLett.98.197201 | External Link
  • Office of Scientific & Technical Information Report Number: 918667
  • Archival Resource Key: ark:/67531/metadc888532

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  • August 25, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Oct. 31, 2016, 3:48 p.m.

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Arenholz, Elke; van der Laan, Gerrit; Chopdekar, Rajesh V. & Suzuki, Yuri. Angle-dependent Ni2+ x-ray magnetic linear dichroism: Interfacialcoupling revisited, article, August 25, 2007; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc888532/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.