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相关论文: Weak ferromagnetism in hexagonal Mn3Z (Z=Sn, Ge, G…

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We investigate the mechanism behind the breakdown of the compensation of large magnetic moments leading to weak ferromagnetism. For this we use first-principles calculations within density functional theory and we focus on the weak…

其他凝聚态物理 · 物理学 2007-05-23 Robert Laskowski , Gilles Santi

We have used spherical neutron polarimetry to investigate the magnetic structure of the Mn spins in the hexagonal semimetal Mn$_3$Ge, which exhibits a large intrinsic anomalous Hall effect. Our analysis of the polarimetric data finds a…

强关联电子 · 物理学 2020-04-30 J. -R. Soh , F. de Juan , N. Qureshi , H. Jacobsen , H. -Y. Wang , Y. -F. Guo , A. T. Boothroyd

The aim of the paper is to contribute to reaching a deeper understanding of the formation of relativistic effects in altermagnets. The focus of the paper is on the phenomena of weak ferromagnetism (WFM) and relativistic DFT calculations…

材料科学 · 物理学 2026-05-05 L. M. Sandratskii , K. Carva , V. M. Silkin

The problem of weak ferromagnetism in antiferromagnets due to canting of magnetic moments was treated using Green's function technique. At first the eigenvalues and eigenfunctions of the electronic Hamiltonian corresponding to collinear…

强关联电子 · 物理学 2010-09-07 V. V. Mazurenko , V. I. Anisimov

First-principles, density-functional based electronic structure calculations are carried out for MgC(Ni_{1-x}Co_{x})_{3} alloys over the concentration range 0\leq x\leq1, using Korringa-Kohn-Rostoker coherent-potential approximation (KKR…

材料科学 · 物理学 2009-11-11 P. Jiji Thomas Joseph , Prabhakar P. Singh

Results of the first principles study on the electronic structure and magnetism of the superconducting weak ferromagnet Y$_4$Co$_3$, are presented. Using the full potential Korringa-Kohn-Rostoker (FP-KKR) method, densities of states,…

超导电性 · 物理学 2011-03-15 Bartlomiej Wiendlocha , Janusz Tobola , Stanislaw Kaprzyk , Andrzej Kolodziejczyk

Within the Hartree Fock- RPA analysis, we derive the spin wave spectrum for the weak ferromagnetic phase of the Hubbard model on the honeycomb lattice. Assuming a uniform magnetization, the polar (optical) and acoustic branches of the spin…

强关联电子 · 物理学 2007-05-23 M A N Araujo , N M R Peres

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…

材料科学 · 物理学 2010-05-25 Gul Rahman , In Gee Kim , H. K. D. H. Bhadeshia , Arthur J. Freeman

A ferromagnetic coupling between localized Mn spins was predicted in a series of \textit{ab initio} and tight binding calculations and experimentally verified for the dilute magnetic semiconductor Ga$_{1-x}$Mn$_x$N. In the limit of small Mn…

材料科学 · 物理学 2020-12-30 D. Sztenkiel , K. Gas , J. Z. Domagala , D. Hommel , M. Sawicki

The properties of diluted Ga$_{1-x}$Mn$_x$As are calculated for a wide range of Mn concentrations within the local spin density approximation of density functional theory. M\"ulliken population analyses and orbital-resolved densities of…

介观与纳米尺度物理 · 物理学 2025-06-10 Stefano Sanvito , Pablo Ordejon , Nicola A. Hill

By systematic first-principles calculations, we study the electronic structure and magnetic property of SrCrO$_3$. Our results suggest that SrCrO$_3$ is a weakly correlated antiferromagnetic (AF) metal, a very rare situation in…

材料科学 · 物理学 2010-07-20 Guangtao Wang , Zhi Li , C. Q. Jin , Zhong Fang

The first-principles full-potential linearized augmented plane-wave method based on density functional theory is used to investigate electronic structure and magnetic properties of hypothetical binary compounds of I$^{A}$ subgroup elements…

材料科学 · 物理学 2008-09-14 Krzysztof Zberecki , Leszek Adamowicz , Michał Wierzbicki

The first principles momentum dependent local ansatz wavefunction method (MLA) has been extended to the ferromagnetic state by introducing spin-dependent variational parameters. The theory is applied to the ferromagnetic Fe, Co, and Ni. It…

强关联电子 · 物理学 2021-02-24 Yoshiro Kakehashi

We employ the combination of the density functional and the dynamical mean-field theory (LDA+DMFT) to investigate the electronic structure and magnetic properties of SrCoO3, monocrystal of which were prepared recently. Our calculations lead…

强关联电子 · 物理学 2012-09-25 J. Kuneš , V. Křápek , N. Parragh , G. Sangiovanni , A. Toschi , A. V. Kozhevnikov

The body of research on (III,Mn)V diluted magnetic semiconductors initiated during the 1990's has concentrated on three major fronts: i) the microscopic origins and fundamental physics of the ferromagnetism that occurs in these systems, ii)…

材料科学 · 物理学 2009-11-11 T. Jungwirth , Jairo Sinova , J. Masek , J. Kucera , A. H. MacDonald

Here we report on detailed studies of the magnetic properties of the wurtzite (Ga,Mn)As cylindrical shells. Ga$_{0.94}$Mn$_{0.06}$As shells have been grown by molecular beam epitaxy at low temperature as a part of multishell cylinders…

材料科学 · 物理学 2021-05-20 Katarzyna Gas , Janusz Sadowski , Maciej Sawicki

The aim of this work is to unravel a basic microscopic picture behind complex magnetic properties of hexagonal manganites. For these purposes, we consider two characteristic compounds: YMnO3 and LuMnO3, which form different magnetic…

材料科学 · 物理学 2012-08-10 I. V. Solovyev , M. V. Valentyuk , V. V. Mazurenko

Fe3Si is a ferromagnetic material with possible applications in magnetic tunnel junctions. When doped with Mn, the material shows a complex magnetic behavior, as suggested by older experiments. We employed the Korringa-Kohn-Rostoker (KKR)…

材料科学 · 物理学 2016-08-14 Marjana Ležaić , Phivos Mavropoulos , Stefan Blügel , Hubert Ebert

We compare the magnetic and electronic configuration of single Mn atoms in molecular beam epitaxy (MBE) grown Bi$_2$Se$_3$ thin films, focusing on electron paramagnetic (ferromagnetic) resonance (EPR and FMR, respectively) and…

Weak localization corrections to conductivity of ferromagnetic systems are studied theoretically in the case when spin-orbit interaction plays a significant role. Two cases are analyzed in detail: (i) the case when the spin-orbit…

材料科学 · 物理学 2009-11-07 V. K. Dugaev , P. Bruno , J. Barnas
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