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相关论文: Interface enhanced magnetic anisotropy in Pt/EuO f…

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Magnetic anisotropy is a key parameter of magnetic materials as it decides the response in the presence of an external magnetic field. The artificial tailoring of magnetic anisotropy by manipulating surface and interface morphology is…

材料科学 · 物理学 2023-02-24 Anup Kumar Bera , Dileep Kumar

Interfacial spin to charge conversion arises due to an electric potential perpendicular to the interface. The electric potential can be artificially induced, for example, using ferroelectric and piezoelectric thin films at the interface. An…

介观与纳米尺度物理 · 物理学 2020-06-23 Ravindra G Bhardwaj , Anand Katailiha , Paul C. Lou , W. P. Beyermann , Sandeep Kumar

In conventional superconductors, bulk physical properties typically degrade as the film thickness approaches the two-dimensional (2D) limit. Here in the (111) oriented LaAlO3/KTaO3 (LAO/KTO) heterostructure, we demonstrate experimental…

We propose a new mechanism for surface-induced magnetic anisotropy to explain the thickness-dependence of the Kondo resistivity of thin films of dilute magnetic alloys. The surface anisotropy energy, generated by spin-orbit coupling on the…

强关联电子 · 物理学 2009-11-11 L. Szunyogh , G. Zarand , S. Gallego , M. C. Munoz , B. L. Gyorffy

We report on a strong perpendicular magnetic anisotropy in [CoFe 0.4nm/Pd t]6 (t = 1.0-2.0 nm) multilayers fabricated by DC sputtering in a ultrahigh vacuum chamber. Saturation magnetization, $M_s$, and uniaxial anisotropy, $K_u$, of the…

介观与纳米尺度物理 · 物理学 2013-09-23 Duc-The Ngo , Z. L. Meng , T. Tahmasebi , X. Yu , E. Thoeng , L. H. Yeo , A. Rusydi , G. C. Han , K. -L. Teo

To address thermal stability issues for spintronic devices with a reduced size, we investigate spin-orbit torque in Co/Pt multilayers with strong perpendicular magnetic anisotropy. Note that the spin-orbit torque arises from the global…

材料科学 · 物理学 2015-12-15 Kuo-Feng Huang , Ding-Shuo Wang , Hsiu-Hau Lin , Chih-Huang Lai

Epitaxial spin filter tunnel junctions based on the ferromagnetic semiconductor europium monoxide, EuO, are investigated by means of density functional theory. In particular, we focus on the spin transport properties of…

介观与纳米尺度物理 · 物理学 2015-06-05 Nuttachai Jutong , Ivan Rungger , Cosima Schuster , Ulrich Eckern , Stefano Sanvito , Udo Schwingenschloegl

The so-called neutron spin resonance consists of a prominent enhancement of the magnetic response at a particular energy and momentum transfer upon entering the superconducting state of unconventional superconductors. In the case of…

超导电性 · 物理学 2019-06-21 Daniel D. Scherer , Brian M. Andersen

We report that current-induced spin-orbit torques (SOTs) in heavy-metal/ferromagnetic-metal bilayers are strongly altered by the oxidation of the ferromagnetic layer near the interface. We measured damping-like (DL) and field-like (FL) SOTs…

材料科学 · 物理学 2020-07-15 Satoshi Haku , Musha Akira , Tenghua Gao , Kazuya Ando

Magnetic trilayers having large perpendicular magnetic anisotropy (PMA) and high spin-orbit torques (SOTs) efficiency are the key to fabricate nonvolatile magnetic memory and logic devices. In this work, PMA and SOTs are systematically…

The LAO/STO interface hosts a two-dimensional electron system that is unusually sensitive to the application of an in-plane magnetic field. Low-temperature experiments have revealed a giant negative magnetoresistance (dropping by 70\%),…

介观与纳米尺度物理 · 物理学 2015-07-06 M. Diez , A. M. R. V. L. Monteiro , G. Mattoni , E. Cobanera , T. Hyart , E. Mulazimoglu , N. Bovenzi , C. W. J. Beenakker , A. D. Caviglia

The experimental study of magnetic flux penetration under crossed magnetic fields in Bi2212:Pb single crystal performed by magnetooptic technique (MO) reveals remarkable field penetration pattern alteration (flux configuration change) and…

超导电性 · 物理学 2009-11-10 L. S. Uspenskaya , A. B. Kulakov , A. L. Rakhmanov

We investigate epitaxial $\text{Co}(20 \, \text{\r{A}})$ and $\text{Co}_{1-x}\text{Au}_{x}(20 \, \text{\r{A}})$ alloy thin-films surrounded by asymmetric heavy metals layers of $\text{Re}(10 \, \text{\r{A}})$ as a buffer and $\text{Pt}(30…

The structure and static magnetic properties - saturation magnetization, perpendicular anisotropy, spectroscopic g-factor, and orbital magnetization - of thin-film 3d transition metal alloys are determined over the full range of alloy…

Spin-polarized supercurrents can be generated with magnetic inhomogeneity at a ferromagnet/spin-singlet-superconductor interface. In such systems, complex magnetic inhomogeneity makes it difficult to functionalise the spin-polarized…

超导电性 · 物理学 2019-11-04 M. S. Anwar , M. Kunieda , R. Ishiguro , S. R. Lee , C. Sow , J. W. A. Robinson , S. Yonezawa , T. W. Noh , Y. Maeno

The reflection coefficient of bulk spin waves from multilayer ferromagnetic structure with periodically modulated parameters of exchange interaction, uniaxial and rhombic magnetic anisotropy and saturation magnetization is calculated with a…

材料科学 · 物理学 2009-01-15 Sergey A Reshetnyak , Tat'yana A Homenko

Superconductors that possess both broken spatial inversion symmetry and spin-orbit interactions exhibit a mix of spin singlet and triplet pairing. Here, we report on measurements of the superconducting properties of electron-doped, strained…

We report the observation of room-temperature magnetic skyrmions in Pt/Co/Os/Pt thin-film heterostructures and their response to electric currents. The magnetic properties are extremely sensitive to inserting thin Os layers between the…

介观与纳米尺度物理 · 物理学 2018-04-25 R. Tolley , S. A. Montoya , E. E. Fullerton

The resistance of a heavy metal can be modulated by an adjacent magnetic material through the combined effects of the spin Hall effect, inverse spin Hall effect, and dissipation of the spin accumulation at the interface. This phenomenon is…

A study of nonreciprocal transverse-spin angular-momentum-density shifts for evanescent waves in magneto-optic waveguide media is presented. Their functional relation to electromagnetic spin- and orbital-momenta is presented and analyzed.…

光学 · 物理学 2016-07-05 Miguel Levy , Dolendra Karki