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Magnetocaloric properties of an inhomogeneous magnetic system of a 7.6 nm La${}_{0.7}$Sr${}_{0.3}$MnO${}_{3}$ consisting of superparamagnetic (SPM) with blocking temperature ( $T_B$ = 240 K) and ferromagnetic (FM) phases ( $T_C$ = 290 K) is…

Materials Science · Physics 2019-07-02 Navid Mottaghi , Robbyn B. Trappen , Saeed Yousefi , Mohindar S. Seehra , Mikel B. Holcomb

Thin films of Ti1-xFexO2 (x=0 and 0.05) have been prepared on sapphire substrates by spin-on technique starting from metal organic precursors. When heat treated in air at 550 and 700 degrees C respectively, these films present pure anatase…

Materials Science · Physics 2009-11-10 R. Suryanarayanan , V. M. Naik , P. Kharel , P. Talgala , R. Naik

We present a detailed study of structural, magnetic and thermodynamic properties of a series of Heusler alloys Fe2-xMnxCrAl (x=0, 0.25, 0.5, 0.75 and 1). Structural investigation of this series is carried out using high resolution…

Materials Science · Physics 2019-11-06 Kavita Yadav , Mohit K. Sharma , Sanjay Singh , K. Mukherjee

Recently, Sharma et al. [Adv. Sci. 9, 2203473 (2022)] claimed that thin films (around 20 nm) of UO2 deposited on perovskite substrates exhibit strongly enhanced paramagnetism (called induced ferromagnetism by the authors). Moments of up to…

The suitability of a particular material for use in magnetic devices is determined by the process of magnetization reversal/relaxation, which in turn depends on the magnetic anisotropy. Therefore, designing new ways to control magnetic…

Superconducting epitaxial films of Fe-based layered arsenide, Co-doped SrFe2As2, were grown at 700oC on mixed perovskite (La, Sr)(Al, Ta)O3 (001) single-crystal substrates by pulsed-laser deposition. Both the epitaxial film and an…

Superconductivity · Physics 2008-09-19 Hidenori Hiramatsu , Takayoshi Katase , Toshio Kamiya , Masahiro Hirano , Hideo Hosono

Bulk magnetization in Pr_{0.6}Ca_{0.4}MnO_3 thin films with tensile (SrTiO_3) and compressive (LaAlO_3) substrate-induced strain is compared to the magnetooptical Kerr effect (MOKE) measurements. In the absence of an external magnetic…

Strongly Correlated Electrons · Physics 2009-11-13 T. Mertelj , R. Yusupov , M. Filippi , W. Prellier , D. Mihailovic

We fabricated NiFe2O thin films on MgAl2O4 (001) substrates by reactive dc magnetron co-sputtering in a pure oxygen atmosphere at different substrate temperatures. The film properties were investigated by various techniques with a focus on…

Conducting and magnetic properties of a material often change in some confined geometries. However, a situation where a non-magnetic semiconductor becomes both metallic and magnetic at the surface is quite rare, and to the best of our…

Strongly Correlated Electrons · Physics 2020-03-04 S. Keshavarz , I. Di Marco , D. Thonig , L. Chioncel , O. Eriksson , Y. O. Kvashnin

We report a systematic investigation on the magnetization relaxation properties of iron-based half-metallic Heusler alloy Fe$_{2}$Cr$_{1-x}$Co_${x}$Si (FCCS) thin films using broadband angular-resolved ferromagnetic resonance. Band…

Single-phase Ni0.46Mn0.54As films with strained C1b symmetry have been successfully grown on GaAs (001) substrates by molecular-beam epitaxy. The epitaxial relationship between the film and the substrate has been studied using synchrotron…

Materials Science · Physics 2019-01-30 J. L. Ma , H. L. Wang , X. M. Zhang , S. Yan , W. S. Yan , J. H. Zhao

Magnetic resonance spectra of EuTiO3 in both bulk and thin film form were taken at temperatures from 3-350 K and microwave frequencies from 9.2-9.8 and 34 GHz. In the paramagnetic phase, magnetic resonance spectra are determined by magnetic…

Materials Science · Physics 2017-03-08 V. V. Laguta , S. Kamba , M. Maryško , B. Andrzejewski , M. Kachlík , K. Maca , J. H. Lee , D. G. Schlom

1.8 micrometer-thick magnesium hydride films were synthesized in a single-step process by reactive plasma-assisted sputtering. The MgH2 thin films, which were deposited on two types of flexible surfaces (namely graphite and polyimide foils)…

Applied Physics · Physics 2023-11-03 Huy Le-Quoc , Marie Coste , Ana Lacoste , L. Laversenne

Ferromagnetic properties of In1-xMnxAs thin films were investigated. Room temperature ferromagnetic order was observed in nominally single-phase films with x = 0.01-0.10. Magnetization measurements indicated that these In1-xMnxAs samples…

Materials Science · Physics 2009-11-10 A. J. Blattner , B. W. Wessels

Ferromagnetic resonance (FMR) technique has been used to study the magnetization relaxation processes and magnetic anisotropy in two different series of the Co2FeSi (CFS) Heusler alloy thin films, deposited on the Si(111) substrate by UHV…

Materials Science · Physics 2019-09-04 Binoy Krishna Hazra , S. N. Kaul , S. Srinath , M. Manivel Raja

We report a method to grow B20 MnGe thin films using molecular-beam epitaxy, which employs an ultrathin CrSi template layer on Si(111). This layer is expected to be nonmagnetic, in contrast to MnSi and FeGe buffer layers that have been used…

We investigate the effect of Mn substitution in Fe$_2$Ti$_{1-x}$Mn$_x$Sn on electronic structure and magnetic and electrical transport properties. The spin-polarized density of states calculations using density-functional theory (DFT)…

Materials Science · Physics 2025-08-20 Kulbhushan Mishra , Shishir Kumar Pandey , S. Chaudhuri , Rajeev Rawat , P. A. Bhobe

We investigated the thermal evolution of the magnetic properties of MnAs epitaxial films grown on GaAs(001) during the coexistence of hexagonal/orthorhombic phases using polarized resonant (magnetic) soft X-ray scattering and magnetic force…

We present a comprehensive study relating the nanostructure of Ge_0.95Mn_0.05 films to their magnetic properties. The formation of ferromagnetic nanometer sized inclusions in a defect free Ge matrix fabricated by low temperature molecular…

Materials Science · Physics 2009-11-11 S. Ahlers , D. Bougeard , N. Sircar , G. Abstreiter , A. Trampert , M. Opel , R. Gross

Two-dimensional (2D) ferromagnets and their heterostructures offer fertile grounds for designing fascinating functionalities in ultra-thin spintronic devices. Here, by first-principles calculations, we report the discovery of energetically…

Materials Science · Physics 2024-06-19 Xiang-Fan Huang , Kang-Jie Li , Zequan Wang , Shi-Bo Zhao , Bing Shen , Zu-Xin Chen , Yusheng Hou