Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102326
Title: Experimental and theoretical investigations on magnetic and related properties of ErRuSi
Authors: Gupta, S.
Das, A.
Suresh, K. G.
Hoser, A.
Knyazev, Y. V.
Kuz'Min, Y. I.
Lukoyanov, A. V.
Issue Date: 2015
Publisher: Institute of Physics Publishing
Citation: Experimental and theoretical investigations on magnetic and related properties of ErRuSi / S. Gupta, A. Das, K. G. Suresh, et al. — DOI 10.1088/2053-1591/2/4/046101 // Materials Research Express. — 2015. — Vol. 2. — Iss. 4. — 046101.
Abstract: Wereport experimental and theoretical studies of magnetic and related properties of ErRuSi compound. Various experimental techniques such as neutron diffraction, magnetization, magnetothermal, magneto-transport, optical conductivity have been used to investigate this compound. Neutron diffraction shows ferromagnetic ordering at low temperatures with moments aligned in the ab plane. Neutron diffraction and magnetization data indicate the influence of crystalline electric field effects in the moment at low temperatures. The compound shows good magnetocaloric properties with a low-field adiabatic temperature change of 4.7 K, which is larger than that of many proposed low temperature magnetic refrigerant materials. Magnetoresistance (MR) shows large negative value at 8 K, which changes its sign and increases in magnitude with decrease in temperature and/or increase in field. The positiveMRat low temperatures is attributed to the Lorentz force effect. The electronic structure calculations accounting for electronic correlations of the 4 f electrons of Er elucidate the ferromagnetic ordering and effective paramagnetic moment. Interband transitions between the Ru and the Er d states and the Er f states in one spin projection are found to form the main feature of the measured optical conductivity in this compound. © 2015 IOP Publishing Ltd.
Keywords: ELECTRONIC STRUCTURE CALCULATIONS
MAGNETIZATION
MAGNETOCALORIC EFFECT
MAGNETORESISTANCE
NEUTRON DIFFRACTION
OPTICAL PROPERTY
ELECTRIC FIELD EFFECTS
ELECTRONIC STRUCTURE
ERBIUM COMPOUNDS
FERROMAGNETIC MATERIALS
FERROMAGNETISM
MAGNETIZATION
MAGNETOCALORIC EFFECTS
MAGNETORESISTANCE
NEUTRON DIFFRACTION
NEUTRONS
OPTICAL CONDUCTIVITY
OPTICAL PROPERTIES
RUTHENIUM COMPOUNDS
SEMICONDUCTOR QUANTUM WELLS
SILICON COMPOUNDS
TEMPERATURE
ADIABATIC TEMPERATURE CHANGE
CRYSTALLINE ELECTRIC FIELD EFFECTS
ELECTRONIC STRUCTURE CALCULATIONS
EXPERIMENTAL TECHNIQUES
FERROMAGNETIC ORDERINGS
MAGNETIC REFRIGERANT MATERIALS
MAGNETOCALORIC PROPERTIES
THEORETICAL INVESTIGATIONS
ERBIUM
URI: http://hdl.handle.net/10995/102326
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 84950131787
PURE ID: 568340
e1902f52-7656-4e40-b92c-8cdbf26dceb3
ISSN: 20531591
DOI: 10.1088/2053-1591/2/4/046101
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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