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

Arenholz, Elke; van der Laan, Gerrit; Chopdekar, Rajesh V.; Suzuki, Yuri

doi:10.1103/PhysRevLett.98.197201

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

Journal Article · Sat Aug 25 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.98.197201· OSTI ID:918667

Arenholz, Elke; van der Laan, Gerrit; Chopdekar, Rajesh V.; Suzuki, Yuri

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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Research Organization:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Director. Office of Science. Basic EnergySciences

DOE Contract Number:: DE-AC02-05CH11231

OSTI ID:: 918667

Report Number(s):: LBNL-62698; PRLTAO; R&D Project: A580SS; BnR: KC0204016; TRN: US0805876

Journal Information:: Physical Review Letters, Vol. 98; Related Information: Journal Publication Date: 05/11/2007; ISSN 0031-9007

Country of Publication:: United States

Language:: English

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