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In this communication we present a study of the electronic structure of partially disordered bulk and (100) thin film of quaternary pseudo-Heusler alloy Co$_2$Fe$_{0.4}$Cr$_{0.6}$Al in the L2$_1$ phase using the Augmented Space recursion…

Disordered Systems and Neural Networks · Physics 2007-05-23 1. Monodeep Chakraborty 2. Atisdipankar Chakrabarti 3. Abhijit Mookerjee

Using the plane-wave pseudopotential method within the framework of density functional theory, Co$_2$MnAl (100), (110), and (111) surfaces with different atomic terminations have been studied in the context of some key spintronics…

Materials Science · Physics 2025-03-24 Amar Kumar , Sujeet Chaudhary , Sharat Chandra

Symmetry arguments are used to develop a spin Hamiltonian for the description of the complex magnetic ordering in HoMnO$_3$. Using a novel application of the Landau Lifshitz Gilbert dynamic torque equations to this model of the frustrated…

Strongly Correlated Electrons · Physics 2012-02-13 S. G. Condran , M. L. Plumer

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

The elastic constant tensors for the hcp phases of three transition metals (Co, Re, and Fe) are computed as functions of pressure using the Linearized Augmented Plane Wave method with both the local density and generalized gradient…

Materials Science · Physics 2009-10-31 G. Steinle-Neumann , L. Stixrude , R. E. Cohen

Using the full-potential local orbital minimum-basis method,the Ti2-based full-Heusler alloys are studied. The results show that these compounds exhibit a half-metallic behavior, however, in contrast to the conventional full-Heusler…

Materials Science · Physics 2011-10-26 Xiao-Ping Wei , Jian-Bo Deng , Ge-Yong Mao , Shi-Bin Chu , Xian-Ru Hu

The orbital contribution to the magnetic properties of Fe in systems of decreasing dimensionality (bulk, surfaces, wire and free clusters) is investigated using a tight-binding hamiltonian in an $s, p,$ and $d$ atomic orbital basis set…

Materials Science · Physics 2008-04-22 Marie-Catherine Desjonquères , Cyrille Barreteau , Gabriel Autes , Daniel Spanjaard

The development of magnetoelectric materials requires chemical design strategies that integrate structural polarity with magnetic lattices capable of supporting competing spin interactions. Here, we demonstrate such an approach in the…

Materials Science · Physics 2026-03-17 Faith O. Adeyemi , Xudong Huai , Mohamed Kandil , Pradip Karki , Wencan Jin , Thao T. Tran

This work reports about electronic structure calculations for the Heusler compound Co$_2$FeAl$_{1-x}$Si$_x$. Particular emphasis was put on the role of the main group element in this compound. The substitution of Al by Si leads to an…

Materials Science · Physics 2009-05-21 G. H. Fecher , C. Felser

Spin gapped metals have recently emerged as promising candidates for spintronic and nanoelectronic applications, enabling functionalities such as sub-60mV/dec switching, negative differential resistance, and non-local spin-valve effects in…

Materials Science · Physics 2025-06-05 E. Sasıoglu , W. Beida , S. Ghosh , M. Tas , B. Sanyal , S. Lounis , S. Blugel , I. Mertig , I. Galanakis

To investigate structure-property correlations, high-coercivity MnxGa nanoparticles were synthesized by the method of sequential deposition of Ga and Mn fluxes using molecular beam epitaxy. Spontaneous nanostructuring was assisted by the…

Materials Science · Physics 2014-02-21 Michelle E. Jamer , Badih A. Assaf , Steven P. Bennett , Laura H. Lewis , Don Heiman

The magnetic properties of the one dimensional (1D) monatomic chain of Co reported in a previous experimental work are investigated by a classical Monte Carlo simulation based on the anisotropic Heisenberg model. In our simulation, the…

Statistical Mechanics · Physics 2010-05-11 Lin He , Desheng Kong , Chinping Chen

We present a comprehensive study aimed at elucidating the complex magnetic correlations in Co$_2$TiSi$_{0.5}$Al$_{0.5}$ Heusler alloy having the partial B2-type structure amid L2$_1$ cubic main phase. The thermo-magnetization measurements…

Strongly Correlated Electrons · Physics 2024-08-26 Priyanka Yadav , Brajesh K. Mani , Rajendra S. Dhaka

(Fe,Co)$_2$B-based compounds with specified 5$d$ substitutions are considered as promising materials for permanent magnets without rare-earth elements. We conducted a combined first-principles and experimental study focused on…

We present ab-initio calculations of the magnetic moments and magnetic anisotropy energies of small FeCo clusters of varying composition on top of a Cu(100) substrate. Three different cluster layouts have been considered, namely 2x2, 3x3…

Materials Science · Physics 2007-05-23 C. Etz , B. Lazarovits , J. Zabloudil , R. Hammerling , B. Ujfalussy , L. Szunyogh , G. M. Stocks , P. Weinberger

New determination of the magnetic anisotropy from single crystals of (Fe$_{1-x}$Co$_x$)$_2$B alloys are presented. The anomalous temperature dependence of the anisotropy constant is discussed using the standard Callen-Callen theory, which…

A detailed investigation of the structural and magnetic properties, including magnetocaloric effect, re-entrant spin-glass behavior at low temperature, and critical behavior in polycrystalline Al$_2$MnFe Heusler alloy is reported. The…

Compositionally complex materials (CCMs) present a potential paradigm shift in the design of magnetic materials. These alloys exhibit long-range structural order coupled with limited or no chemical order. As a result, extreme local…

Magnetic materials represent an essential ingredient for the contemporary industry. Apart from common material parameters such as magnetocrystalline anisotropy, coercivity, or saturation magnetization, magnetoelastic behavior is vital for…

The magnetic and structural properties of single crystal Fe$_{1-x}$Co$_x$V$_2$O$_{4}$ samples have been investigated by performing specific heat, susceptibility, neutron diffraction, and X-ray diffraction measurements. As the orbital-active…

Materials Science · Physics 2017-09-07 R. Sinclair , J. Ma , H. B. Cao , T. Hong , M. Matsuda , Z. L. Dun , H. D. Zhou