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We study a model thin film containing diluted bilayer structure with the RKKY long-range interaction. The magnetic subsystem is composed of two magnetically doped layers, separated by an undoped nonmagnetic spacer and placed inside a wider…

材料科学 · 物理学 2015-05-13 Karol Szałowski , Tadeusz Balcerzak

The microstructure of a Cu/V nanocomposite wire processed by cold drawing was investigated by high resolution transmission electron microscopy and atom probe tomography. The experimental data clearly reveal some deformation induced…

材料科学 · 物理学 2009-07-10 Xavier Sauvage , Cécile Genevois , Gérald Da Costa , Viktor Pantsyrny

The characteristic microstructure of Sm(Co,Fe,Cu,Zr)$_z$ alloys with SmCo$_5$ cell walls in Sm$_2$Co$_{17}$ cells, all intersected by Zr-rich platelets, makes them some of the best performing high-temperature permanent magnets. Plentiful…

Spin transfers in magnetic multilayers offers a promising pathway toward ultrafast, energy-efficient spintronic devices. In this study, we investigate the interfacial spin pumping and temperature-dependent spin current exchange in a…

介观与纳米尺度物理 · 物理学 2026-02-02 Mahammad Tahir , Swati Pandey , Sourabh Manna , Rajdeep Singh Rawat , Rohit Medwal , Soumik Mukhopadhyay

The enhancement of interfacial Dzyaloshinskii-Moriya Interaction (DMI) in magnetic multilayers results in the stabilization of topological spin textures like chiral domain walls and skyrmions. Here we report on the evaluation of…

Recently discovered 2D van der Waals magnetic materials, and specifically Iron-Germanium-Telluride ($\rm Fe_{5}GeTe_{2}$), have attracted significant attention both from a fundamental perspective and for potential applications. Key open…

At the interface between a nonmagnetic metal (NM) and a ferromagnetic insulator (FI) spin current can interact with the magnetization, leading to a modulation of the spin current. The interfacial exchange field at these FI-NM interfaces can…

介观与纳米尺度物理 · 物理学 2018-07-20 P. K. Muduli , M. Kimata , Y. Omori , T. Wakamura , Saroj P. Dash , YoshiChika Otani

The magnetic structure of the edge sharing cuprate compound Li2CuO2 has been investigated by means of ab initio electronic structure calculations. The first and second neighbor in-chain magnetic interactions are calculated to be -142 K and…

Based on density functional theory and symmetry analysis, we present a comprehensive investigation of electronic structure, magnetic properties and possible structural distortion of magnetic kagome metal FeGe. We estimate the magnetic…

强关联电子 · 物理学 2023-08-02 Hanjing Zhou , Songsong Yan , Dongze Fan , Di Wang , Xiangang Wan

The interface of two dissimilar materials is well known for surprises in condensed matter, and provides avenues for rich physics as well as seeds for future technological advancements. We present some exciting magnetization (M) and remnant…

介观与纳米尺度物理 · 物理学 2019-09-04 Aakanksha Kapoor , Arka Bikash Dey , Charu Garg , Ashna Bajpai

The surface of three-dimensional materials provides an ideal and versatile platform to explore quantum-confined physics. Here, we systematically investigate the electronic structure of Na-intercalated CrTe2, a van der Waals antiferromagnet,…

Spin-lattice dynamics is used to study the magnetic properties of Fe foams. The temperature dependence of the magnetization in foams is determined as a function of the fraction of surface atoms in foams, nsurf. The Curie temperature of…

The ability to control magnetic interactions at the nanoscale is crucial for the development of next-generation spintronic devices and functional magnetic materials. In this work, we investigate theoretically, by means of many-body…

介观与纳米尺度物理 · 物理学 2025-09-18 Tomas T. Osterholt , D. O. Oriekhov , Lumen Eek , Cristiane Morais Smith , Rembert A. Duine

We have investigated magnetic properties of Rb$_2$Cu$_2$Mo$_3$O$_{12}$ powder. Temperature dependence of magnetic susceptibility and magnetic-field dependence of magnetization have shown that this cuprate is a model compound of a…

其他凝聚态物理 · 物理学 2009-11-10 Masashi Hase , Haruhiko Kuroe , Kiyoshi Ozawa , Osamu Suzuki , Hideaki Kitazawa , Giyuu Kido , Tomoyuki Sekine

We investigate long-range chiral magnetic interactions among adatoms mediated by surface states spin-splitted by spin-orbit coupling. Using the Rashba model, the tensor of exchange interactions is extracted wherein a pseudo-dipolar…

介观与纳米尺度物理 · 物理学 2017-03-08 Juba Bouaziz , Manuel dos Santos Dias , Abdelhamid Ziane , Mouloud Benakki , Stefan Blügel , Samir Lounis

We investigate magnetic properties of a frustrated Heisenberg antiferromagnet with a face-centered cubic (FCC) lattice and exchange interactions between the nearest- and next-nearest neighbours, J1 and J2. In a collinear phase with the wave…

强关联电子 · 物理学 2013-04-15 A. N. Ignatenko , A. A. Katanin , V. Yu. Irkhin

The energetics of transition and noble metal (Rh, Pd, Cu) vicinal surfaces, i.e., surface energy, step energy, kink energy and electronic interactions between steps, is studied at 0K from electronic structure calculations in the…

In this study, we determined the different physical characteristics of nanoscale layered mixed Fe-Co layers of orthoferrite SmFe0.5Co0.5O3 based on magnetic and dielectric measurements.Magnetization analyzes showed that the system was…

材料科学 · 物理学 2018-12-27 Ashish Shukla , Akash Singh , Md. Motin Seikh , Asish K Kundu

We demonstrate the manipulation of the Curie temperature of buried layers of the ferromagnetic semiconductor (Ga,Mn)As using nanolithography to enhance the effect of annealing. Patterning the GaAs-capped ferromagnetic layers into nanowires…

材料科学 · 物理学 2009-11-11 K. F. Eid , B. L. Sheu , O. Maksimov , M. B. Stone , P. Schiffer , N. Samarth

Inelastic neutron scattering measurements on the low energy spin waves in CaFe2As2 show that the magnetic exchange interactions in the Fe layers are exceptionally large and similar to the cuprates. However, the exchange between layers is…

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