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Related papers: The half-metallic ferromagnet Co2Mn0.5Fe0.5Si

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As the bulk single-crystal MoN2/ReN2 with a layered structure was successfully synthesized in experiment, transition-metal dinitrides have attracted considerable attention in recent years. Here, we focus on rare-earth-metal (Rem) elements…

Materials Science · Physics 2022-01-19 Yawei Yu , Xin Chen , Xiaobiao Liu , Jia Li , Biplab Sanyal , Xiangru Kong , François M. Peeters , Linyang Li

Half-metals have fully spin polarized charge carriers at the Fermi surface. Such polarization usually occurs due to strong electron--electron correlations. Recently [Phys. Rev. Lett. {\bf{119}}, 107601 (2017)], we have demonstrated…

Strongly Correlated Electrons · Physics 2018-11-13 A. L. Rakhmanov , A. O. Sboychakov , K. I. Kugel , A. V. Rozhkov , Franco Nori

In rare-earth permanent magnets (REPM's), trade-off's between intrinsic magnetic properties are often encountered. A recent example is SmFe$_{12}$ where excellent magnetic properties can be achieved at the sacrifice of bulk structure…

Materials Science · Physics 2020-06-22 Munehisa Matsumoto , Takafumi Hawai , Kanta Ono

In this research paper, we investigated the structural, electronic, and magnetic features of titanium atom substituting calciumatom in rock salt structure of CaS to explore the new dilute magnetic semiconductor compounds. The calculations…

Materials Science · Physics 2022-02-16 Meryem Ziati , Hamid Ez-Zahraouy

Lattice parameter, bulk modulus, formation energy and magnetism equilibrium structure in all-d transition metals $Ni_2XMn$ (X=Co,Cr,Fe) for Full and Inverse Heusler structure are studied by first-principles calculations. Tetragonal…

Materials Science · Physics 2023-02-14 A. Alés

Two-dimensional Cr2N MXene as well as the surface-passivated Cr2NF2, Cr2N(OH)2 and Cr2NO2 are investigated by using density functional theory. The Cr2N is an anti-ferromagnetic metal. The F atom or OH group-passivation does not change the…

Materials Science · Physics 2016-08-15 Guo Wang

Co3Sn2S2 has been reported to be a Weyl semimetal with broken time-reversal symmetry with c axis ferromagnetism (FM) below a Curie temperature of 177 K. Despite the large interest in Co3Sn2S2, the magnetic structure is still under debate…

CaFe2As2 exhibits collapsed tetragonal (cT) structure and varied exotic behavior under pressure at low temperatures that led to debate on linking the structural changes to its exceptional electronic properties like superconductivity,…

Superconductivity · Physics 2017-12-12 Khadiza Ali , Kalobaran Maiti

Employing first-principles calculations we study the structural, electronic and magnetic properties of the [Sc$_{1-x}$V$_x$]C and [Sc$_{1-x}$V$_x$]Si alloys. In their equilibrium rocksalt structure all alloys are non-magnetic. The…

Materials Science · Physics 2015-05-13 K. Ozdogan , E. Sasioglu , I. Galanakis

Two-dimensional (2D) intrinsic half-metallic materials are of great interest to explore the exciting physics and applications of nanoscale spintronic devices, but no such materials have been experimentally realized. Using first-principles…

Materials Science · Physics 2021-10-01 Tengfei Hu , Wenhui Wan , Yanfeng Ge , Yong Liu

Correlation effects play an important role in the electronic structure of half-metallic (HM) magnets. In particular, they give rise to non-quasiparticle states above (or below) the Fermi energy at finite temperatures that reduce the spin…

Strongly Correlated Electrons · Physics 2015-06-17 Ersoy Sasioglu , Iosif Galanakis , Christoph Friedrich , Stefan Blügel

Multiple spin density waves and related vortex-type magnetic structures in the itinerant electron system with inversion symmetry have been investigated on the basis of the Hubbard model and the generalized Hartree-Fock approximation…

Strongly Correlated Electrons · Physics 2020-02-19 Yoshiro Kakehashi

An antiferromagnetic insulating state has been found in the zigzag phosphorene nanoribbons (ZPNRs) from a comprehensive density functional theory calculations. Comparing with other one-dimensional systems, the magnetism in ZPNRs display…

Mesoscale and Nanoscale Physics · Physics 2015-04-06 Yongping Du , Huimei Liu , Bo Xu , Li Sheng , Jiang Yin , Chun-Gang Duan , Xiangang Wan

Cubic Half-Heusler Cu$_{1-x}$Co$_x$MnSb (0 $\leq$ $x$ $\leq$ 0.1) compounds have been investigated both experimentally and theoretically for their magnetic, transport and electronic properties in search of possible half metallic…

57Fe Mossbauer spectroscopy measurements were performed on a powdered CuFe2Ge2 sample that orders antiferromagnetically at ~ 175 K. Whereas a paramagnetic doublet was observed above the Neel temperature, a superposition of paramagnetic…

Materials Science · Physics 2018-03-14 Sergey L. Bud'ko , Na Hyun Jo , Savannah S. Downing , Paul C. Canfield

Half-metallicity (full spin polarization of the Fermi surface) usually occurs in strongly correlated electron systems. We demonstrate that doping a spin-density wave insulator in the weak-coupling regime may also stabilize half-metallic…

Strongly Correlated Electrons · Physics 2019-03-06 A. V. Rozhkov , A. L. Rakhmanov , A. O. Sboychakov , K. I. Kugel , F. Nori

We investigate the structural, electronic and magnetic properties of the full Heusler compounds Mn$_2$YSn (Y = Mo, Nb, Zr) by first-principles density functional theory using the generalized gradient approximation. It is found that the…

Materials Science · Physics 2021-03-30 S. Zeffane , M. Sayah , F. Dahmane , M. Mokhtari , L. Zekri , R. Khenata , N. Zekri

We investigated the magnetic structure and dynamics of YbMnBi$_2$, with elastic and inelastic neutron scattering, to shed light on the topological nature of the charge carriers in the antiferromagnetic phase. We confirm C-type…

Topological materials have been a main focus of studies in the past decade due to their protected properties that can be exploited for the fabrication of new devices. Among them, Weyl semimetals are a class of topological semimetals with…

Materials Science · Physics 2024-02-05 Davide Grassano , Luca Binci , Nicola Marzari

The kagome ferromagnet Co3Sn2S2 has been studied extensively for its unusual topology of electronic bands, origin of ferromagnetism and strong coupling between magnetism and charge transport. To understand the role of nonmagnetic element…

Materials Science · Physics 2026-03-04 Karan Singh , Subhadip Pradhan , K. Mukherjee , Ashis Kumar Nandy , Subhendra D. Mahanti , D. Topwal