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Related papers: MgN: a new promising material for spintronic appli…

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A comprehensive study of Ge1-xMnxCo2O4 (GMCO) system was conducted using neutron powder diffraction (NPD), x-ray diffraction (XRD), Scanning electron microscopy, magnetometry, and heat capacity measurements. Comparative analysis with…

We have performed ab initio calculations within the density-functional theory for Ga_{1-x}Mn_xAs diluted semiconductors. Total energy results unambiguously show that a quasi-localized down-spin hole, with strong p-like character, surrounds…

Materials Science · Physics 2007-05-23 A. J. R. da Silva , A. Fazzio , R. R. dos Santos , L. E. Oliveira

Spintronics is expected as the next-generation technology based on the novel notch of spin degree of freedom of electrons. Half metals, a class of materials which behave as a metal in one spin direction and an insulator in the opposite spin…

Materials Science · Physics 2011-08-19 Xiao HU

SmN is a ferromagnetic semiconductor with the unusual property of an orbital-dominant magnetic moment that is largely cancelled by an antiparallel spin contribution, resulting in a near-zero net moment. However, there is a basic gap in the…

Materials Science · Physics 2016-03-02 J. F. McNulty , B. J. Ruck , H. J. Trodahl

The magnetism in 12.5% and 25% Mn delta-doped cubic GaN has been investigated using the density-functional theory calculations. The results show that the single-layer delta-doping and half-delta-doping structures show robust ground state…

Materials Science · Physics 2009-01-20 Xingtao Jia , Wei Yang , Minghui Qin , Xinglai Zhang , Xindong Cui , Mingai Sun

The discovery of a superconducting dome in the proximity of the magnetic to paramagnetic transition in the electronic phase diagram of MnP as a function of hydrostatic pressure has renewed the interest in the magnetic properties of this…

Superconductivity · Physics 2016-03-30 Pietro Bonfá , Ifeanyi John Onuorah , Roberto De Renzi

We fabricate fully epitaxial Fe/ZnO/MgO/Fe magnetic tunnel junctions (MTJs) with a bilayer tunnel barrier, in which ZnO has a metastable rock-salt crystal structure. We observe a high magnetoresistance ratio up to 96% at room temperature…

By performing fully general relativistic magnetohydrodynamic simulations of binary neutron star mergers, we investigate the possibility that the end result of the merger is a stable magnetar. In particular, we show that, for a binary…

High Energy Astrophysical Phenomena · Physics 2013-06-27 Bruno Giacomazzo , Rosalba Perna

We explore the intriguing topological itinerant magnet MgMn$_6$Sn$_6$, characterized by bilayer kagome Mn layers encasing a hexagonal Sn layer. Using \textit{ab initio} Density functional theory and Dynamical mean-field theory calculations,…

Strongly Correlated Electrons · Physics 2024-08-06 Jyotirmoy Sau , Hrishit Banerjee , Sourabh Saha , Nitesh Kumar , Manoranjan Kumar

Metastable superconductivity at \approx 50 K in the interfaces formed by metallic and oxidized magnesium (MgO) has been observed by ac magnetic susceptibility and electrical resistance measurements. The superconducting interfaces have been…

Superconductivity · Physics 2015-06-05 N. S. Sidorov , A. V. Palnichenko , O. M. Vyaselev

We have investigated the crystal, electronic, and magnetic structure of Mn5O8 by means of state of-the-art density functional theory calculations and neutron powder diffraction (NPD) measurements. This compound stabilizes in the monoclinic…

Materials Science · Physics 2016-09-12 M. R. Ashwin Kishore , H. Okamoto , Lokanath Patra , R. Vidya , Anja O. Sjastad , H. Fjellvag , P. Ravindran

The ordered structure of MgO-ZnO alloy system is a versatile tunable optical material promising for diverse optoelectronic applications. However, isovalent and isostructural alloy compositions of MgO-ZnO are generally unstable at ambient…

Materials Science · Physics 2020-02-26 K. Aziz , C. E. Ekuma

We investigate in this paper properties of the spin resistivity in the magnetic semiconducting MnTe of NiAs structure. MnTe is a crossroad semiconductor with a large band gap. It is an antiferromagnet with the N\'eel temperature around…

Materials Science · Physics 2015-06-03 Yann Magnin , Hung The Diep

Magnetic Tunnel Junction (MTJ) based Spin-Transfer Torque Magnetic Random Access Memory (STT-MRAM) is poised to replace embedded Flash for advanced applications such as automotive microcontroller units. To achieve deeper technological…

Mesoscale and Nanoscale Physics · Physics 2025-02-28 Nicholas A. Lanzillo , Sergey Faleev , Aakash Pushp

In the framework of density functional theory (DFT), the structural and magnetic properties of FeN mono nitride have been investigated using the all electrons augmented spherical wave method (ASW) with a generalized gradient GGA functional…

Materials Science · Physics 2009-09-08 A. Houari , S. F. Matar , M. A. Belkhir , M. Nakhl

Perpendicular MgO-based Magnetic Tunnel Junctions are optimal candidates as building block of Spin Transfer Torque (STT) magnetoresistive memories. However, up to now, the only STT is not enough to achieve switching current density below…

Materials Science · Physics 2015-03-13 M. Carpentieri , R. Tomasello , M. Ricci , P. Burrascano , G. Finocchio

The magnetic, thermal and transport properties as well as electronic band structure of MnPtSi are reported. MnPtSi is a metal that undergoes a ferromagnetic transition at $T_{\mathrm{C}}=340$(1) K and a spin-reorientation transition at…

Strongly Correlated Electrons · Physics 2019-09-04 Monika B. Gamża , Walter Schnelle , Helge Rosner , Sarah V. Ackerbauer , Yuri Grin , Andreas Leithe-Jasper

Employing first-principle electronic structure calculations, we study the magnetic and electronic properties of the XY (X= Mg, Ca, Sr and Y= N, P, As, Sb) compounds crystallizing in the zincblende structure. The Ca and Sr alkaline-earth…

Materials Science · Physics 2012-10-30 K. Ozdogan , I. Galanakis

Wurtzite ZnO can be substituted with up to ~30% MgO to form a metastable ZnMgO alloy while still retaining the wurtzite structure. Because this alloy has a larger band gap than pure ZnO, ZnMgO/ZnO quantum wells and superlattices are of…

Other Condensed Matter · Physics 2009-12-16 Andrei Malashevich , David Vanderbilt

Alloying effects by T=Mn,Co,Ni-substitution on FeS$_2$ have been investigated using density-functional calculations. The ferromagnetic alloys Fe$_{1-x}$T$_x$S$_2$ have been investigated for concentrations…

Materials Science · Physics 2015-12-16 Abdesalem Houari , Peter E. Blöchl