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相关论文: Interfacial magnetic anisotropy from a 3-dimension…

200 篇论文

We study a possible mechanism of the switching of the magnetic easy axis as a function of hole concentration in (Ga,Mn)As epilayers. In-plane uniaxial magnetic anisotropy along [110] is found to exceed intrinsic cubic magnetocrystalline…

材料科学 · 物理学 2009-11-11 K. Hamaya , T. Watanabe , T. Taniyama , A. Oiwa , Y. Kitamoto , Y. Yamazaki

We examine the T=0 phase diagram of a thin ferromagnetic film with a strong out-of-plane anisotropy in the vicinity of the reorientation phase transition (with Co on Pt as an example). The phase diagram in the anisotropy-applied field plane…

材料科学 · 物理学 2007-05-23 D. Clarke , O. A. Tretiakov , O. Tchernyshyov

Due to the complex interplay of magnetic, structural, electronic, and orbital degrees of freedom, biaxial strain is known to play an essential role in the doped manganites. For coherently strained La(2/3)Ca(1/3)MnO(3) thin films grown on…

强关联电子 · 物理学 2009-11-07 J. Klein , J. B. Philipp , G. Carbone , A. Vigliante , L. Alff , R. Gross

Transition metal thriclorides, with $4d$ or $5d$ electrons, are materials at the forefront of recent studies about the interplay of spin-orbit coupling and strong Coulomb interactions. Within our first-principles calculations (DFT+$U$+SOC)…

材料科学 · 物理学 2022-10-19 P. H. Souza , D. P. de Andrade Deus , W. H. Brito , R. H. Miwa

We discuss problem of Rashba field in bulk GaN and in GaN/AlGaN two-dimensional electron gas, basing on results of X-band microwave resonance experiments. We point at large difference in spin-orbit coupling between bulk material and…

材料科学 · 物理学 2012-11-14 A. Wolos , Z. Wilamowski , C. Skierbiszewski , A. Drabinska , B. Lucznik , I. Grzegory , S. Porowski

We demonstrate the possibility of a coupling between the magnetization direction of a ferromagnet and the tilting angle of adsorbed achiral molecules. To illustrate the mechanism of the coupling, we analyze a minimal Stoner model that…

介观与纳米尺度物理 · 物理学 2023-09-15 Ragheed Alhyder , Alberto Cappellaro , Mikhail Lemeshko , Artem G. Volosniev

Tailoring spin-orbit interactions and Coulomb repulsion are the key features to observe exotic physical phenomena such as magnetic anisotropy and topological spin texture at oxide interfaces. Our study proposes a novel platform for…

Permanent magnet materials require a high uniaxial magneto-crystalline anisotropy. Exchange coupling between small crystallites with easy-plane anisotropy induces an effective uniaxial anisotropy if arranged accordingly. Nanostructuring of…

材料科学 · 物理学 2017-11-10 J. Fischbacher , A. Kovacs , H. Oezelt , M. Gusenbauer , D. Suess , T. Schrefl

We give experimental and theoretical evidence of the Rashba effect at the magnetic rare-earth metal surface Gd(0001). The Rashba effect is substantially enhanced and the Rashba parameter changes its sign when a metal-oxide surface layer is…

材料科学 · 物理学 2009-11-10 O. Krupin , G. Bihlmayer , K. Starke , S. Gorovikov , J. E. Prieto , K. Doebrich , S. Bluegel , G. Kaindl

In a two-dimensional ferromagnetic metal layer lacking inversion symmetry, the itinerant electrons mediate the interaction between the Rashba spin-orbit interaction and the ferromagnetic order parameter, leading to a Rashba spin torque…

材料科学 · 物理学 2011-11-24 Xuhui Wang , Aurelien Manchon

In intercalated transition metal dichalcogenide $Fe_xTaS_2$ (0.2 $\leq$ x $\leq$ 0.4) single crystals, large magnetic anisotropy is observed. Transport property measurements indicate that heavy Fe-doping leads to a large anisotropy of…

强关联电子 · 物理学 2017-05-10 G. Wu , B. L. Kang , Y. L. Li , T. Wu , N. Z. Wang , X. G. Luo , Z. Sun , L. J. Zou , X. H. Chen

The pivotal role of magnetic anisotropy in stabilising two-dimensional (2D) magnetism has been widely accepted, however, direct correlation between magnetic anisotropy and long-range magnetic ordering in the 2D limit is yet to be explored.…

We study optical conductivity of a two-dimensional electron gas with anisotropic $k$-cubic Rashba spin-orbit interaction formed at the LaAlO$_3$/SrTiO$_3$ interface. The anisotropic spin splitting energy gives rise to different features of…

介观与纳米尺度物理 · 物理学 2016-09-01 Alestin Mawrie , Tarun Kanti Ghosh

Interfacial magnetism stimulates the discovery of giant magnetoresistance and spin-orbital coupling across the heterointerfaces, facilitating the intimate correlation between spin transport and complex magnetic structures. Over decades,…

Within a phenomenological approach the density of induced uniaxial anisotropy in nanostructures K(r) is treated as a physical field additional to the magnetization M(r). The equilibrium distributions of K(r) are formed under the influence…

材料科学 · 物理学 2007-05-23 A. N. Bogdanov , U. K. Roessler

We study the electronic band structure of monolayer graphene when Rashba spin-orbit coupling is present. We show that if the Rashba spin-orbit coupling is stronger than the intrinsic spin-orbit coupling, the low energy bands undergo…

介观与纳米尺度物理 · 物理学 2010-10-05 Peter Rakyta , Andor Kormanyos , Jozsef Cserti

Near-surface two-dimensional electron gases on the topological insulator Bi$_2$Te$_2$Se are induced by electron doping and studied by angle-resolved photoemission spectroscopy. A pronounced spin-orbit splitting is observed for these states.…

We have investigated the in-plane uniaxial pressure effect on the antiferromagnetic Mott insulator Ca2RuO4 from resistivity and magnetization measurements. We succeeded in inducing the ferromagnetic metallic phase at lower critical pressure…

Effects of the surface exchange anisotropy on ordering of ferromagnetic films are studied for the exactly solvable classical spin-vector model with D \to \infty components. For small surface anisotropy \eta'_s << 1 (defined relative to the…

统计力学 · 物理学 2009-10-31 D. A. Garanin

The realization of antiferromagnetic (AF) correlations in ultracold fermionic atoms on an optical lattice is a significant achievement. Experiments have been carried out in one, two, and three dimensions, and have also studied anisotropic…