Universität zu Köln

Balinski, K., Kuznetsova, T. V., Gerasimov, E. G., Protasov, A. V., Marchenkov, V. V., Mushnikov, N. V., Galakhov, V. R., Mesilov, V. V., Shamin, S. N., Gaviko, V. S., Senkovskiy, B. V., Fijalkowski, M., Schneider, L., Slebarski, A., Chrobak, A. and Kuepper, K. (2018). Electrical resistivity, magnetism and electronic structure of the intermetallic 3d/4f Laves phase compounds ErNi2Mnx. AIP Adv., 8 (10). MELVILLE: AMER INST PHYSICS. ISSN 2158-3226

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Abstract

The non-stoichiometric intermetallic compounds RENi2Mnx (RE = rare earth) with the cubic MgCu2-type structure display a large variety of magnetic properties which is due to a complex interplay between the degrees of freedom of the 3d and 4f electrons and their interactions. We performed a comprehensive study of the electrical resistivity, magnetic properties and the electronic structure of ErNi2Mnx (x = 0, 0.25, 0.5, 0.75, 1, 1.25) compounds by employing a suitable set of complementary experimental approaches. We find an increase in electrical resistance compared to ErNi2 upon Mn doping, the residual resistivity ratio decreases with increasing manganese content. The Curie temperature exhibits a sharp increase to around 50 K for Mn concentrations x >= 0.5, whereas the saturation magnetization decreases with growing Mn content x >= 0.5. Valence band X-ray photoelectron spectroscopy reveals an increasing intensity of Mn 3d states near Fermi energy in dependence of Mn concentration and Curie temperature. Resonant photoelectron spectroscopy of ErNi2Mn0.75 reveals that the photoemission decay channels dominate the valence band spectra across the Er N-5 and Mn L-3 X-ray absorption maxima, whereas the L3VV Auger dictates the resonant valence band spectra close to and at the Ni L-3 X-ray absorption edge. (c) 2018 Author(s).

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Balinski, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kuznetsova, T. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gerasimov, E. G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Protasov, A. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Marchenkov, V. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mushnikov, N. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Galakhov, V. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mesilov, V. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Shamin, S. N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gaviko, V. S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Senkovskiy, B. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fijalkowski, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schneider, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Slebarski, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Chrobak, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kuepper, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-170872
DOI:	10.1063/1.5048578
Journal or Publication Title:	AIP Adv.
Volume:	8
Number:	10
Date:	2018
Publisher:	AMER INST PHYSICS
Place of Publication:	MELVILLE
ISSN:	2158-3226
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language X-RAY-ABSORPTION; RARE-EARTH; METAL; MOMENT Multiple languages Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/17087