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相关论文: Intriguing magnetism of Fe monolayers on hexagonal…

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Coupled order parameters in phase-transition materials can be controlled using various driving forces such as temperature, magnetic and electric field, strain, spin-polarized currents and optical pulses. Tuning the material properties to…

介观与纳米尺度物理 · 物理学 2016-11-03 Vojtech Uhlir , Jon Ander Arregi , Eric E. Fullerton

In this review, we present a summary of experimental studies of magnetism in Fe-based superconductors. The doping dependent phase diagram shows strong similarities to the generic phase diagram of the cuprates. Parent compounds exhibit…

超导电性 · 物理学 2010-05-19 M. D. Lumsden , A. D. Christianson

X-ray absorption spectroscopy (XAS) as well as x-ray magnetic circular dichroism (XMCD) and magnetization of hybrid pyrochlore Eu2-xFexTi2O7 were investigated, where the rare earth Eu (4f) was replaced with transition metal Fe (3d) to…

The magnetic and magnetostructural properties of the polycrystalline Ce(Fe0.975Ga0.025)2 have been investigated as a function of temperature and magnetic field. In Ce(Fe0.975Ga0.025)2 the magnetic transition from antiferromagnetic (AFM) to…

The capacity to externally manipulate magnetic properties is highly desired from both fundamental and technological perspectives, particularly in the development of magnetoelectronics and spintronics devices. Here, using first-principles…

材料科学 · 物理学 2024-02-27 Rui-Qi Wang , Tian-Min Lei , Yue-Wen Fang

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

The magnetic properties of a monolayer of Fe4 single molecule magnets grafted onto a Au (111) thin film have been investigated using low energy muon spin rotation. The properties of the monolayer are compared to bulk Fe4. We find that the…

介观与纳米尺度物理 · 物理学 2009-09-28 Z. Salman , S. J. Blundell , S. R. Giblin , M. Mannini , L. Margheriti , E. Morenzoni , T. Prokscha , A. Suter , A. Cornia , R. Sessoli

Based on first-principles calculations, we predict a new two-dimensional ferromagnetic material that exhibits exotic Fermi surface topology. We show that monolayer hexagonal indium carbide ({\em h}-InC) is thermodynamically and dynamically…

材料科学 · 物理学 2019-07-24 Sunam Jeon , Yun-Tak Oh , Youngkuk Kim

Zero-field-cooled (ZFC) and field-cooled (FC) magnetization along with ac-magnetization vs. temperature and m-h loop measurements are reported for two series of ion-beam sputtered Fe-Cr GMR multilayers where the interface roughness is…

其他凝聚态物理 · 物理学 2007-05-23 R. S. Patel , A. K. Majumdar , A. K. Nigam , D. Temple , C. Pace

Using spin density functional theory we have carried out a comparative study of chemical bonding and magnetism in Fe_4N, Fe_3N and Fe_2N. All of these compounds form close packed Fe lattices, while N occupies octahedral interstitial…

材料科学 · 物理学 2009-10-31 M. Sifkovits , H. Smolinski , S. Hellwig , W. Weber

Hexagonal FeSe thin films were grown on SrTiO3 substrates and the temperature and thickness dependence of their electronic structures were studied. The hexagonal FeSe is found to be metallic and electron doped, whose Fermi surface consists…

强关联电子 · 物理学 2017-10-25 S. Y. Tan , C. H. P. Wen , M. Xia , J. Jiang , Q. Song , B. P. Xie , X. C. Lai , D. L. Feng

Motivated by a recent experimental observation of a complex magnetic structure [Takada et al. 2013 J. Magn. Magn. Mater. 329 95] we present a theoretical study of the magnetic structure of an Fe monolayer deposited on Rh(001). We use a…

介观与纳米尺度物理 · 物理学 2015-06-23 A. Deák , K. Palotás , L. Szunyogh , I. A. Szabó

The magnetic properties of Fe/Ag granular multilayers were examined by SQUID magnetization and Mossbauer spectroscopy measurements. Very thin (0.2 nm) discontinuous Fe layers show superparamagnetic properties that can be tailored by the…

Using density functional theory we show that the interaction between two Mn atoms can be tuned from anti-ferromagnetic (AFM) to ferromagnetic (FM) state by creating charge disproportion between the two on a 2D surface. The non-metallic…

材料科学 · 物理学 2025-12-22 Mihir Ranjan Sahoo , Saroj Kumar Nayak , Kalpataru Pradhan

The magnetic structure of a Cr monolayer on a W(110) substrate is investigated by means of first-principles calculations based on the noncollinear spin density functional theory (DFT). As magnetic ground state we find a long-period…

材料科学 · 物理学 2016-01-26 Bernd Zimmermann , Marcus Heide , Gustav Bihlmayer , Stefan Blügel

The influence of hydrostatic pressure and ab-plane strain on the magnetic structure of FeTe is investigated from first principles. The results of calculations reveal a phase transition from antiferromagnetic double-stripe ordering at…

超导电性 · 物理学 2014-02-11 A. Ciechan , M. J. Winiarski , M. Samsel-Czekała

Magnetisation dynamics in exchange spring magnets have been studied using simulations of the FePt/Fe bilayer system. The FePt hard layer exhibits strong perpendicular magnetocrystalline anisotropy, while the soft (Fe) layer has negligible…

介观与纳米尺度物理 · 物理学 2010-06-29 Pedro M. S. Monteiro , D. S. Schmool

Equilibrium spin configurations and their stability limits have been calculated for models of magnetic superlattices with a finite number of thin ferromagnetic layers coupled antiferromagnetically through (non-magnetic) spacers as Fe/Cr and…

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

A theoretical study is made of the magnetization versus applied field curves of ferromagnetic/nonmagnetic multilayers constructed according to a Fibonacci quasiperiodic sequence. The ferromagnetic films are assumed to have uniaxial…

材料科学 · 物理学 2009-11-07 C. G. Bezerra , M. G. Cottam

Intrinsic antiferromagnetism in van der Waals (vdW) monolayer (ML) crystals enriches the understanding regarding two-dimensional (2D) magnetic orders and holds special virtues over ferromagnetism in spintronic applications. However, the…