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Related papers: Induced Ge Spin Polarization at the Fe/Ge Interfac…

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The electronic and magnetic properties of Fe atoms in the ferromagnetic semiconductor (In,Fe)As codoped with Be have been studied by x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) at the Fe $L_{2,3}$ edge.…

We calculate the spin-polarized electronic transport through a molecular bilayer spin valve from first principles, and establish the link between the magnetoresistance and the spin-dependent inter- actions at the metal-molecule interfaces.…

Mesoscale and Nanoscale Physics · Physics 2016-03-26 Deniz Çakır , Diana M. Otálvaro , Geert Brocks

Based on first-principles density-functional theory calculations we investigate the electronic structure of hexanuclear "ferric wheels" M Fe_6[N(CH_2 CH_2 O)_3]_6 Cl (M = Li, Na) in their antiferromagnetic ground state. The electronic…

Materials Science · Physics 2007-05-23 A. V. Postnikov , Jens Kortus , Stefan Bluegel

We present a derivation of the orbital and spin sum rules for magnetic circular dichroic spectra measured by electron energy loss spectroscopy in a transmission electron microscope. These sum rules are obtained from the differential cross…

Other Condensed Matter · Physics 2009-11-13 L. Calmels , F. Houdellier , B. Warot-Fonrose , C. Gatel , M. J. Hÿtch , V. Serin , E. Snoeck , P. Schattschneider

We inject spin-polarized electrons from an Fe/MgO tunnel barrier contact into n-type Ge(001) substrates with electron densities 2e16 < n < 8e17 cm-3, and electrically detect the resulting spin accumulation using three-terminal Hanle…

Materials Science · Physics 2012-02-20 A. T. Hanbicki , S. -. F. Cheng , R. Goswami , O. M. J. van `t Erve , B. T. Jonker

We report on the g factor measurement of the isomer in $^{61}Fe$ ($E^{*}=861 keV$). The isomer was produced and spin-aligned via a projectile-fragmentation reaction at intermediate energy, the Time Dependent Perturbed Angular Distribution…

Nuclear Experiment · Physics 2009-11-10 I. Matea , G. Georgiev , J. M. Daugas , M. Hass , G. Neyens

Systematic experimental (vibrating sample magnetometry) and theoretical (electronic structure calculations using charge and spin self-consistent Korringa-Kohn-Rostoker Green function method) studies were performed on a series of…

Strongly Correlated Electrons · Physics 2014-11-12 J. Cieslak , S. M. Dubiel , M. Reissner , J. Tobola

We study the electronic and magnetic properties of L1$_0$ phase of FeNi, a perspective rare-earth-free permanent magnet, by using a combination of density functional and dynamical mean-field theory. Although L1$_0$ FeNi has a slightly…

Strongly Correlated Electrons · Physics 2020-07-02 A. S. Belozerov , A. A. Katanin , V. I. Anisimov

We report a first-principles study of the magnetic properties, site disorder and magneto-structural coupling in multiferroic gallium ferrite (GFO) using local spin density approximation (LSDA+U) of density functional theory. The…

Materials Science · Physics 2012-04-16 Amritendu Roy , Rajendra Prasad , Sushil Auluck , Ashish Garg

We demonstrate the occurrence of compensated spin configurations in Fe clusters and monolayers on Ru(0001) and Rh(111) by a combination of X-ray magnetic circular dichroism experiments and first-principles calculations. Our results reveal…

Materials Science · Physics 2014-03-18 V. Sessi , F. Otte , S. Krotzky , C. Tieg , M. Wasniowska , P. Ferriani , S. Heinze , J. Honolka , K. Kern

We study the electronic and magnetic properties of monolayer Fe$_3$GeTe$_2$ within the DFT+DMFT approach in the paramagnetic phase. We argue that this compound is sufficiently far from the local magnetic moment limit, demonstrating…

Strongly Correlated Electrons · Physics 2026-03-13 A. A. Katanin , A. N. Rudenko , D. I. Badrtdinov , M. I. Katsnelson

Fe-doped III-V ferromagnetic semiconductors (FMSs) such as (In,Fe)As, (Ga,Fe)Sb, (In,Fe)Sb, and (Al,Fe)Sb are promising materials for spintronic device applications because of the availability of both n- and p-type materials and the high…

The spin-selective electron reflection at a ferromagnetic-paramagnetic interface is investigated using Fe films on a W(110) substrate. Angle-resolved photoemission of the majority and minority Fermi surfaces of the Fe film is used to probe…

Other Condensed Matter · Physics 2007-05-23 J. Schaefer , M. Hoinkis , Eli Rotenberg , P. Blaha , R. Claessen

The magnetic and electronic structures of $3d$ impurity atoms from Sc to Zn in ferromagnetic body-centered cubic iron are investigated using the all-electron full-potential linearized augmented plane-wave method based on the generalized…

Materials Science · Physics 2010-05-25 Gul Rahman , In Gee Kim , H. K. D. H. Bhadeshia , Arthur J. Freeman

By ab initio LMTO calculations in atomic-sphere approximation we have studied the interlayer exchange coupling between Fe films separated by Au spacers in infinite Fe/Au multilayers with (001) interface orientation. We also performed…

Materials Science · Physics 2009-10-31 M. Böhm , U. Krey

Density functional theory (DFT) calculations are carried out on ReOFeAs, Re = Ce, Pr, the parent compounds of the high-T$_c$ superconductors ReO$_{1-x}$F$_{x}$FeAs, in order to determine the magnetic order of the ground state. It is found…

Superconductivity · Physics 2009-03-03 H. M. Alyahyaei , R. A. Jishi

Recent studies revealed that the electric multipole moments of insulators result in fractional electric charges localized to the hinges and corners of the sample. We here explore the magnetic analog of this relation. We show that a…

Strongly Correlated Electrons · Physics 2021-04-28 Haruki Watanabe , Yasuyuki Kato , Hoi Chun Po , Yukitoshi Motome

A $2\times2\times2$ charge density wave (CDW) was recently observed deep inside the antiferromagnetic phase of a Kagome metal FeGe. A key question is whether the CDW in FeGe is driven by its electronic correlation and magnetism. Here, we…

Strongly Correlated Electrons · Physics 2023-11-08 Yilin Wang

We report calculations indicating the presence of a surface magnetic moment for Rh(001), motivated by the detection of a finite moment by magnetic linear dichroism experiments. We show that, while the density functional with the local…

Materials Science · Physics 2009-11-11 N. Stojic , N. Binggeli , M. Altarelli

The stressed heterojunctions with antiferromagnetic ordering in which the constituents have oppposite band edge symmetry and their gaps have opposite signs have been investigated. The interface states have been shown to appear in these…

Condensed Matter · Physics 2007-05-23 V. G. Kantser , N. M. Malkova