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The field of spintronics has seen a surge of interest in altermagnetism due to novel predictions and many possible applications. MnTe is a leading altermagnetic candidate that is of significant interest across spintronics due to its layered…

We study the magnetic and electronic properties of Ni-intercalated NbSe$_2$.We calculate the magnetic exchanges of Ni$_x$NbSe$_2$ ($x = 1/3, 1/4,$ and $1$) and find that the out-of-plane magnetic coupling depends on the Ni connectivity: it…

Materials Science · Physics 2025-11-20 Xujia Gong , Amar Fakhredine , Carmine Autieri

Neutron powder diffraction and single crystal x-ray resonant magnetic scattering measurements suggest that Dy plays an active role in enhancing the ferroelectric polarization in multiferroic DyMnO3 above TNDy = 6.5 K. We observe the…

Strongly Correlated Electrons · Physics 2007-05-23 O. Prokhnenko , R. Feyerherm , E. Dudzik , S. Landsgesell , N. Aliouane , L. C. Chapon , D. N. Argyriou

The development of ferromagnetism in Mn-doped Bi2Te3 is characterized through measurements on a series of single crystals with different Mn content. Scanning tunneling microscopy analysis shows that the Mn substitutes on the Bi sites,…

Electrical spin injection from Fe into Al$_x$Ga$_{1-x}$As quantum well heterostructures is demonstrated in small (< 500 Oe) in-plane magnetic fields. The measurement is sensitive only to the component of the spin that precesses about the…

Condensed Matter · Physics 2009-11-10 J. Strand , B. D. Schultz , A. F. Isakovic , C. J. Palmstrom , P. A. Crowell

Ni-Mn-Ga is interesting as a prototype of a magnetic shape-memory alloy showing large magnetic field induced strains. We present here results for the magnetic ordering of Mn-rich Ni-Mn-Ga alloys based on both experiments and theory.…

Materials Science · Physics 2009-11-07 J. Enkovaara , O. Heczko , A. Ayuela , R. M. Nieminen

Temperature dependent magnetization, muon spin rotation and $^{57}$Fe M\"ossbauer spectroscopy experiments performed on crystals of intermetallic FeGa$_{3-y}$Ge$_{y}$ ($y=0.11,0.14,0.17,0.22,0.27$, $0.29,0.32$) are reported. Whereas at…

By performing accurate ab-initio density functional theory calculations, we study the role of $4f$ electrons in stabilizing the magnetic-field-induced ferroelectric state of DyFeO$_{3}$. We confirm that the ferroelectric polarization is…

Materials Science · Physics 2015-05-14 Alessandro Stroppa , Martijn Marsman , Georg Kresse , Silvia Picozzi

Half-metallic ferromagnets can produce fully spin-polarized conduction electrons and can be applied to fabricate spintronic devices. Thus, in this study, the electronic structure, magnetic properties, and optical properties of GaSb, which…

Materials Science · Physics 2020-01-07 Chuang Wang , Wenhui Wan , Yanfeng Ge , Yong-Hong Zhao , Kaicheng Zhang , Yong Liu

Epitaxially grown intermetallic RFe2 (R = Dy, Er, Y) thin films have been studied by point contact Andreev reflection. Spin polarization values were extracted by fitting normalized conductance curves for mechanical Nb/RFe2 point contacts,…

Other Condensed Matter · Physics 2011-12-06 C. Morrison , D. Wang , G. J. Bowden , R. C. C. Ward , P. A. J. de Groot

In order to enhance spin injection efficiency from ferromagnetic (FM) metal into a two-dimensional electron gas (2DEG), we introduce another FM metal and two tunnel barriers (I) between them to investigate the current polarization in such…

Materials Science · Physics 2007-05-23 Jun Wang , D. Y. Xing , H. B. Sun

Magnetic compensated state attracted much interests due to the observed large exchange bias and large coercivity, and its potential applications in the antiferromagnetic spintronics with merit of no stray field. In this work, by ab initio…

Materials Science · Physics 2018-01-04 Yurong You , Guizhou Xu , Fang Hu , Yuanyuan Gong , Er Liu , Feng Xu

Owing to the geometrical frustration, Mn$_3 $Sn exhibits a 120$^{\circ}$ in-plane triangular antiferromagnetic (AFM) order with a large anomalous Hall effect (AHE). Here, we present a combined theoretical and experimental study to…

All-electrical writing and reading of spin states attract considerable attention for their promising applications in energy-efficient spintronics devices. Here we show, based on rigorous first-principles calculations, that the spin…

Mesoscale and Nanoscale Physics · Physics 2022-08-22 Fei Gao , Dongzhe Li , Cyrille Barreteau , Mads Brandbyge

In rare-earth compounds with valence fluctuation, the proximity of the 4f level to the Fermi energy leads to instabilities of the charge configuration and the magnetic moment. Here, we provide direct experimental evidence for an induced…

Strongly Correlated Electrons · Physics 2023-01-31 K. Chen , C. Luo , Y. Zhao F. Baudelet , A. Maurya , A. Thamizhavel , U. K. Rößler , D. Makarov , F. Radu

Spin-state transitions, observed in many transition metal compounds containing Co$^{3+}$ and Fe$^{2+}$, may occur with the change of temperature, pressure, but also with doping, in which case the competition of single-site effects and…

Strongly Correlated Electrons · Physics 2009-07-24 A. O. Sboychakov , K. I. Kugel , A. L. Rakhmanov , D. I. Khomskii

The effect of additional doping of charge impurities was investigated in a ferromagnetic semiconductor Zn$_{1-x}$Cr$_{x}$Te. It was found that the doping of iodine, which is expected to act as an n-type dopant in ZnTe, brought about a…

Materials Science · Physics 2009-11-11 Nobuhiko Ozaki , Nozomi Nishizawa , Stephane Marcet , Shinji Kuroda , Osamu Eryu , Koki Takita

We have explored, computationally and experimentally, the magnetic properties of \fecob{} alloys. Calculations provide a good agreement with experiment in terms of the saturation magnetization and the magnetocrystalline anisotropy energy…

We report measurement of a spin pumping effect due to fluctuations of the magnetic order of IrMn thin films. A precessing NiFe ferromagnet injected spins into IrMn spin sinks, and enhanced damping was observed around the IrMn magnetic phase…

Spinel ferrite Cu1-xZnxFe2O4 nanofibers over a compositional range 0 < x < 1 were prepared by electrospinning combined with sol-gel method. The influence of Zn2+ ions substitution on morphology, structure, and magnetic properties of copper…

Materials Science · Physics 2011-06-08 Weiwei Pan , Fengmei Gu , Kuo Qi , Qingfang Liu , Jianbo Wang