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Related papers: From Fe$_3$O$_4$/NiO bilayers to NiFe$_2$O$_4$-lik…

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The recent discovery of high-transition temperature ($T_\mathrm{c}$) superconductivity in pressurized La$_{3}$Ni$_{2}$O$_{7}$ bulk crystals has attracted keen attention due to its characteristic energy diagram of $e_{g}$ orbitals,…

Based on a multi-scale calculations, combining ab-initio methods with spin dynamics simulations, we perform a detailed study of the magnetic behavior of Ni2MnAl/Fe bilayers. Our simulations show that such a bilayer exhibits a small exchange…

Mesoscale and Nanoscale Physics · Physics 2017-09-06 Rocio Yanes , Eszter Simon , Sebastian Keller , Balazs Nagyfalusi , Sergii Khmelevsky , Laszlo Szunyogh , Ulrich Nowak

We investigate the low-temperature spin dynamics of epitaxial lithium aluminum ferrite (LAFO) thin films using broadband ferromagnetic resonance (FMR) spectroscopy from 0.44 K to 68 K. The results reveal a crossover from conventional cubic…

We demonstrate the magnetization reversal features in NiFe/IrMn/NiFe thin-film structures with 40% and 75% relative content of Ni in Permalloy in the temperature range from 80 K to 300 K. At the descending branches of the hysteresis loops,…

Mesoscale and Nanoscale Physics · Physics 2019-04-01 Ch. Gritsenko , I. Dzhun , M. Volochaev , M. Gorshenkov , G. Babaytsev , N. Chechenin , A. Sokolov , Oleg A. Tretiakov , V. Rodionova

FeRh based alloys may display an uncommon transition from a ferromagnetic to an antiferromagnetic state upon cooling. The transition takes place roughly above room temperature and it can be sensitively modulated by composition and external…

Materials Science · Physics 2019-11-14 Ignasi Fina , Josep Fontcuberta

We demonstrate a novel approach for non-destructive in-situ characterization of phase transitions of ultrathin nickel silicide films using 3D medium-energy ion scattering. The technique provides simultaneously composition and real-space…

Materials Science · Physics 2019-10-22 Tuan Thien Tran , Lukas Jablonka , Christian Lavoie , Zhen Zhang , Daniel Primetzhofer

Thin films of Fe3O4 have been deposited on single crystal MgO (100) and Si (100) substrates using pulsed laser deposition. Films grown on MgO substrate are epitaxial with c-axis orientation whereas, films on Si substrate are highly <111>…

Materials Science · Physics 2009-12-08 Ram Prakash , R. J. Choudhary , Shailja Tiwari , D. M. Phase , Ravi Kumar

Spinel Fe3O4 nanoparticles have been produced through ball milling in methyl-alcohol (CH3OH), aiming to obtain samples with similar average particle sizes <d> and different interparticle interactions. Three samples having Fe3O4/CH3(OH) mass…

Materials Science · Physics 2011-03-24 Gerardo F. Goya

Multiferroic BiFeO3 (BFO) thin film exhibiting desired ferroelectric and enhanced magnetic properties was grown on La0.67Sr0.33MnO3 (LSMO) buffered Pt/TiO2/SiO2/Si substrates by off-axis RF magnetic sputtering, where a highly (111)-oriented…

Materials Science · Physics 2012-03-05 Qingqing Ke , Wenlai Lu , Xuelian Huang , John Wang

We assess the potential of the ferrimagnetic spinel ferrites CoFe2O4 and NiFe2O4 to act as spin filtering barriers in magnetic tunnel junctions. Our study is based on the electronic structure calculated by means of first-principles density…

Materials Science · Physics 2015-06-12 Nuala M. Caffrey , Daniel Fritsch , Thomas Archer , Stefano Sanvito , Claude Ederer

Thin films of magnetite (Fe3O4) are grown on single crystal GaAs (100) substrate by pulsed laser deposition. X ray diffraction (XRD) result shows the (111) preferred orientation of the Fe3O4 film and x-ray photoelectron spectroscopy confirm…

Materials Science · Physics 2009-12-08 Ram Prakash , R. J. Choudhary , L. S. Sharath Chandra , N. Lakshmi , D. M. Phase

Over the last fifteen years, ferroelectric and antiferroelectric ultra thin films based on fluorite-structured materials have drawn significant attention for a wide variety of applications requiring high integration density.…

Spinel ferrites in general show a rich interplay of structural, electronic, and magnetic properties. Here, we particularly focus on zinc ferrite (ZFO), which has been observed experimentally to crystallise in the cubic $normal$ spinel…

Materials Science · Physics 2018-10-26 Daniel Fritsch

Recently, the signs of both superconducting transition temperature (Tc) beyond 60 K and spin density wave (SDW) have been observed in FeSe thin film on SrTiO3 (STO) substrate, which suggests a strong interplay between superconductivity and…

Superconductivity · Physics 2014-01-08 Hai-Yuan Cao , Shiyong Tan , Hongjun Xiang , D. L. Feng , Xin-Gao Gong

The anisotropic spin glass transition, in which spin freezing is observed only along the c-axis in pseudobrookite Fe$_2$TiO$_5$, has long been perplexing because the Fe$^{3+}$ moments (d$^5$) are expected to be isotropic. Recently, neutron…

Disordered Systems and Neural Networks · Physics 2023-01-18 Yu Li , P. G. LaBarre , D. M. Pajerowski , A. P. Ramirez , S. Rosenkranz , D. Phelan

We investigate the spatial distribution of spin orientation in magnetic nanoparticles consisting of hard and soft magnetic layers. The nanoparticles are synthesized in a core / shell spherical morphology where the magnetically hard, high…

Mesoscale and Nanoscale Physics · Physics 2021-05-26 C. Kons , K. L. Krycka , J. Robles , Nikolaos Ntallis , Manuel Pereiro , Manh-Huong Phan , Hariharan Srikanth , J. A. Borchers , D. A. Arena

Antiferromagnetic thin films are currently generating considerable excitement for low dissipation magnonics and spintronics. However, while tuneable antiferromagnetic textures form the backbone of functional devices, they are virtually…

The effects of annealing and variation of temperature on the electrical and thermoelectric properties of e-beam evaporated InSe thin films has been investigated in details. The XRD study demonstrates that the as-deposited InSe thin films…

Materials Science · Physics 2019-11-28 Jaker Hossain , Md. Julkarnain , B. K. Mondal , M. A. Newaz , K. A. Khan

Mn$_2$VAl Heusler alloy films were epitaxially grown on MgO(100) single crystal substrates by means of ultra-high-vacuum magnetron sputtering. A2 and L2$_1$ type Mn$_2$VAl order was controlled by the deposition temperatures. A2-type…

Electrical switching of N\'eel order in an antiferromagnetic insulator is desirable as a basis for memory applications. Unlike electrically-driven switching of ferromagnetic order via spin-orbit torques, electrical switching of…

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