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Related papers: Magnetovolume Effects in Heusler Compounds via Fir…

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The Pair Approximation method is applied to studies of the bilayer and multilayer magnetic systems with simple cubic structure. The method allows to take into account quantum effects related with non-Ising couplings. The paper adopts the…

Statistical Mechanics · Physics 2013-04-09 Karol Szałowski , Tadeusz Balcerzak

We investigate the high temperature thermoelectric properties of Heusler alloys Fe2-xMnxCrAl (0<x<1). Substitution of 12.5% Mn at Fe-site (x = 0.25) causes a significant increase in high temperature resistivity (\r{ho}) and an enhancement…

Materials Science · Physics 2022-02-15 Kavita Yadav , Saurabh Singh , Omprakash Muthuswamy , Tsunehiro Takeuchi , K. Mukherjee

Magnetic shape memory Heusler alloys are multiferroics stabilized by the correlations between electronic, magnetic and structural order. To study these correlations we use time resolved x-ray diffraction and magneto-optical Kerr effect…

Magnetic, thermal, magnetocaloric and transport properties of polycrystalline HoRuSi have been studied. It was found that the compound shows magnetic transitions at T1=18 K and T2=8 K. Magnetization data reveal that the ferromagnetic…

Strongly Correlated Electrons · Physics 2013-01-17 Sachin B. Gupta , K. G. Suresh , A. K. Nigam

Magnetocaloric microwires are very promising for energy-efficient magnetic refrigeration in micro electromechanical systems (MEMS) and nano electromechanical systems (NEMS). Creating microwires that exhibit large magnetocaloric effects…

Applied Physics · Physics 2023-12-18 Lin Luo , Hongxian Shen , Lunyong Zhang , Yongjiang Huang , Jianfei Sun , Manh-Huong Phan

Tetragonal Mn-based Heusler compounds feature rich exchange interactions and exotic topological magnetic textures, such as antiskyrmions, complimented by the chiral-type Hall effects. This makes the material class interesting for device…

Manganese-rich Heusler compounds are attracting much interest in the context of spin transfer torque and rare-earth free hard magnets. Here we give a comprehensive overview of the magnetic properties of non-centrosymmetric cubic…

Materials Science · Physics 2014-12-10 Lukas Wollmann , Stanislav Chadov , Jürgen Kübler , Claudia Felser

We present a semi-analytic theory for the Curie temperature in diluted magnetic semi-conductors that treats disorder effects exactly in the effective Heisenberg Hamiltonian, and spin fluctuations within a local RPA. The exchange couplings…

Disordered Systems and Neural Networks · Physics 2015-06-24 Georges Bouzerar , Timothy Ziman , Josef Kudrnovsky

Recent realizations of intrinsic magnetic order in truly two-dimensional materials have opened new avenues in the fundamental knowledge and spintronic applications. Here we develop an anisotropic Heisenberg model with relativistic exchange…

Materials Science · Physics 2021-07-27 Chandan K. Singh , Mukul Kabir

Magnetic susceptibility of the isostructural Ce(Ni{1-x}Cu{x})5 alloys (0< x <0.9) was studied as a function of the hydrostatic pressure up to 2 kbar at fixed temperatures 77.3 and 300 K, using a pendulum-type magnetometer. A pronounced…

Strongly Correlated Electrons · Physics 2007-05-23 G. E. Grechnev , A. V. Logosha , A. S. Panfilov , I. V. Svechkarev , O. Musil , P. Svoboda

We present our recent results on temperature behaviour of magnetization observed in Ni_47Mn_39In_14 Heusler alloys. Three regions can be distinguished in the M-T diagram: (I) low temperature martensitic phase (with the Curie temperature…

The structure, magnetism, magnetic compensation behavior, exchange interaction and electronic structures of Co50-xMn25Ga25+x and Co50-xMn25+xGa25 (x=0-25) alloys have been systematically investigated by both experiments and first-principles…

Materials Science · Physics 2013-03-13 G. J. Li , E. K. Liu , Y. J. Zhang , Y. Du , H. W. Zhang , W. H. Wang , G. H. Wu

In this report the Co2 based Heusler compounds are discussed as potential materials for spin voltage generation. The compounds were synthesized by arcmelting and consequent annealing. Band structure calculations were performed and revealed…

In this manuscript, we propose a method to prepare small flakes of DyCu2. On top of that we also report on the magnetocaloric effect and nature of magnetic transition of a strongly anisotropic DyCu2 in its low dimension. Magnetization…

Disordered Systems and Neural Networks · Physics 2016-06-07 M. Venkat Narayana Ganesh Kotnana , S. Narayana Jammalamadaka

A systematic study of magnetic properties of Ni2+xMn1-xGa (0 \le x \le 0.19) Heusler alloys undergoing structural martensite-austenite transformations while in ferromagnetic state has been performed. From measurements of spontaneous…

Materials Science · Physics 2009-11-10 V. V. Khovailo , V. Novosad , T. Takagi , D. A. Filippov , R. Z. Levitin , A. N. Vasilev

We report a study of structural, magnetic, heat capacity and thermoelectric properties of a Rubased Heusler alloy, Ru2TiGe. The magnetic measurements reveal that at higher temperatures, diamagnetic and Pauli paramagnetic contributions…

Strongly Correlated Electrons · Physics 2023-08-07 Sanchayita Mondal , Krishanu Ghosh , R. Ranganathan , Eric Alleno , Chandan Mazumdar

We compare three distinct computational approaches based on first-principles calculations within density functional theory to explore the magnetic exchange and the Dzyaloshinskii-Moriya interactions (DMI) of a Co monolayer on Pt(111),…

We investigate the magnetic behavior and critical exponents of quaternary CoFeV$_{0.8}$Mn$_{0.2}$Si Heusler alloy to understand the interactions across the Curie temperature ($T_{\rm C}$). The Rietveld refinement of the x-ray diffraction…

Materials Science · Physics 2023-10-04 Guru Dutt Gupt , P. D. Babu , R. S. Dhaka

The link between the metamagnetic transition and novel spin-triplet superconductivity of UTe$_2$ was discussed thermodynamically through magnetostriction measurements in a pulsed-magnetic field. We revealed a discontinuous magnetostriction…

In an effort to understand the impact of nanostructuring on the magnetocaloric effect, we have grown and studied gadolinium in MgO/W(50 $\textrm{\AA}$)/[Gd(400 $\textrm{\AA}$)/W(50 $\textrm{\AA}$)]$_8$ heterostructures. The entropy change…

Mesoscale and Nanoscale Physics · Physics 2011-12-19 Casey W. Miller , D. V. Williams , N. S. Bingham , H. Srikanth