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Exchange coupling between two magnetic layers through an interlayer is of broad interest for numerous recent applications of nano-magnetic systems. In this Letter we study ferromagnetic exchange coupling through amorphous paramagnetic Fe-Ta…

材料科学 · 物理学 2013-04-11 Matthias Gottwald , Jimmy J. Kan , Kangho Lee , Seung H. Kang , Eric E. Fullerton

We use soft x-ray vector-ptychographic tomography to determine the three-dimensional magnetization field in superparamagnetic nanoparticles self-assembled at the liquid-liquid interface and reveal the magnetic order induced by layered…

Two-dimensional (2D) multiferroics exhibit cross-control capacity between magnetic and electric responses in reduced spatial domain, making them well suited for next-generation nanoscale devices; however, progress has been slow in…

材料科学 · 物理学 2020-05-15 Jing Shang , Chun Li , Aijun Du , Ting Liao , Yuantong Gu , Yandong Ma , Liangzhi Kou , Changfeng Chen

Nanoparticles of high refractive index materials can possess strong magnetic polarizabilities and give rise to artificial magnetism in the optical spectral range. While the response of individual dielectric or metal spherical particles can…

During the past ten years nanostructures have been subject of active research. Fabrication of such systems follows well developed methods. The increase in the number of materials available for research and applications requires that the…

材料科学 · 物理学 2007-05-23 G. V. Kurlyandskaya , S. M. Bhagat

Using first-principles calculations, we demonstrate that an Fe monolayer can assume very different magnetic phases on hexagonal hcp (0001) and fcc (111) surfaces of 4d- and 5d-transition metals. Due to the substrates' d-band filling, the…

材料科学 · 物理学 2008-11-07 B. Hardrat , A. Al-Zubi , P. Ferriani , S. Blügel , G. Bihlmayer , S. Heinze

Microstructure properties of Co/Au multilayers prepared using dc-magnetron sputtering is reported using X-ray reflectivity (XRR) and X-ray diffraction (XRD) analysis. XRR profiles of these multilayers showed excellent bilayer periodicity.…

软凝聚态物质 · 物理学 2021-12-07 Conrad Rizal

The proximity effect in mesoscopic ferromagnet/superconductor ($FS$) Ni/Al structures of various geometries was studied experimentally on both $F$- and $S$-sides of the structures. Samples with a wide range of interface transparency were…

超导电性 · 物理学 2007-05-23 V. T. Petrashov , I. A. Sosnin , I. Cox , A. Parsons , C. Troadec

We report on a comprehensive study of the magnetic coupling between soft magnetic Fe layers and hard magnetic Dysprosium (Dy) layers at low temperatures (4.2 - 120K). For our experiments we prepared thin films of Fe and Dy and multilayers…

材料科学 · 物理学 2018-04-11 M. Ehlert , H. S. Körner , T. Hupfauer , M. Schitko , G. Bayreuther , D. Weiss

The ab initio full-potential linearized augmented plane-wave method explicitly designed for the slab geometry was employed to elucidate the physical origin of the layer potentials for the trilayers nFe/3Cr/nFe(001), where n is the number of…

材料科学 · 物理学 2007-05-23 M. Pereiro , D. Baldomir , S. V. Man'kovsky , K. Warda , J. E. Arias , L. Wojtczak , J. Botana

We report a study of the structural and magnetic behavior of the topmost magnetic layer in a ferromagnet-nonmagnet (Co-Au) multilayer system. Glancing angle X-ray diffraction measurements performed on a series of multilayers showed a…

We report the fabrication of self-organized arrays of Fe nanostripes with a period of 3.5 nm, by sequential deposition of Fe and Ag on Mo(110). The wires display a strong in-plane uniaxial anisotropy along their length, and are…

其他凝聚态物理 · 物理学 2007-05-23 Bogdana Borca , Olivier Fruchart , Claire Meyer

Understanding the interfaces of layered nanostructures is key to optimizing their structural and magnetic properties for the desired functionality. In the present work, the two interfaces of a few nm thick Fe layer in Ag-57Fe-Ag trilayers…

Controllable magnetization in atomically thin two-dimensional magnets is highly desirable for developing spintronics. For FeSe monolayer, its magnetic ground state is not yet fully understood, and the potential in constructing high-speed…

材料科学 · 物理学 2024-11-08 Yueqiao Qu , Yu Liao , Zhixiang Wang , Liang Liu , Gang Yao

Using atomistic Monte Carlo simulations, we investigated the impact of the interface on the structural properties of iron and copper (Fe/Cu) magnetic multilayers grown by Vorono\"i diagram. Interest in magnetic multilayers has recently…

材料科学 · 物理学 2017-11-27 Jules Berlin Nde Kengne , Bernard Fongang , Serge Zekeng

The experimental studies of the paramagnetic-antiferromagnetic phase transition through M\"{o}ssbauer spectroscopy and measurements of temperature and field dependencies of magnetic susceptibility in the layered Cu$_{0.15}$Fe$_{0.85}$PS$_3$…

计算物理 · 物理学 2023-01-05 V. Pashchenko , O. Bludov , D. Baltrunas , K. Mazeika , S. Motria , K. Glukhov , Yu. Vysochanskii

Collinear antiferromagnets (AFs) support two degenerate magnon excitations carrying opposite spin polarizations, by which magnons can function as electrons in various spin-related phenomena. In an insulating ferromagnet(F)/AF/F trilayer, we…

介观与纳米尺度物理 · 物理学 2018-11-21 Ran Cheng , Di Xiao , Jian-Gang Zhu

We investigated the effect of Fe segregated from partially Fe-substituted MgO (MgFeO) on the magnetic properties of CoFeB/MgFeO multilayers. X-ray photoelectron spectroscopy (XPS) as well as magnetic measurements revealed that the…

介观与纳米尺度物理 · 物理学 2023-08-21 Tomohiro Ichinose , Tatsuya Yamamoto , Takayuki Nozaki , Kay Yakushiji , Shingo Tamaru , Shinji Yuasa

We have used polarized neutron reflectometry to study the structural and magnetic properties of the individual layers in a series of (Al,Be,Ga)As/(Ga,Mn)As/GaAs/(Ga,Mn)As multilayer samples. Structurally, we observe that the samples are…

材料科学 · 物理学 2009-11-13 B. J. Kirby , J. A. Borchers , X. Liu , Y. J. Cho , M. Dobrowolska , J. K. Furdyna

Surface magnetic properties of the pseudomorphic Fe(110) monolayer on a W(110) substrate are investigated from first principles as a function of the substrate thickness (up to eight layers). Analyzing the magnetocrystalline anisotropy…

介观与纳米尺度物理 · 物理学 2007-05-23 Torsten Andersen , Wolfgang Hübner