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Related papers: Ferromagnetism and increased ionicity in epitaxial…

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We have studied magnetic properties of heavily Mn-doped [(In0.44Ga0.56)0.79Mn0.21]As thin films grown by low-temperature molecular-beam epitaxy (LT-MBE) on InP substrates. The (InGaMn)As with high Mn content (21%) was obtained by decreasing…

Materials Science · Physics 2009-11-10 Shinobu Ohya , Hideo Kobayashi , Masaaki Tanaka

The enigma of the emergent ferromagnetic state in tensile-strained LaCoO3 thin films remains to be explored because of the lack of a well agreed explanation. The direct magnetic imaging technique using a low-temperature magnetic force…

Thin films grown by pulsed-laser deposition from targets of Sn0.95Fe0.05O2 are transparent ferromagnets with Curie temperature and spontaneous magnetization of 610 K and 2.2 Am2kg-1, respectively. The 57Fe Mossbauer spectra show the iron is…

Condensed Matter · Physics 2009-11-10 J. M. D. Coey , A. P. Douvalis , C. B. Fitzgerald , M. Venkatesan

A detailed study of the influence of molecular beam epitaxial growth conditions on the structural and magnetic characteristics of CuMnSb films on lattice matched GaSb is presented. For a set of nine 40~nm thick layers, the Mn and Sb fluxes…

Materials Science · Physics 2022-06-28 L. Scheffler , J. Werther , K. Gas , C. Schumacher , C. Gould , M. Sawicki , J. Kleinlein , L. W. Molenkamp

High quality stoichiometric magnetite (Fe3O4) films grown by infrared pulsed laser deposition (IR-PLD) on different surfaces were investigated in order to study the influence of the substrate, orientation, and thickness on their magnetic…

Bulk BiMnO$_3$ is the only transition-metal perovskite oxide that is insulating and shows strong ferromagnetism. This distinctive behavior would make it a promising candidate as a magnetoelectric multiferroic if it was also a polar…

Materials Science · Physics 2015-03-31 Oswaldo Diéguez , Jorge Íñiguez

We report magnetic properties of epitaxial thin films of the itinerant ferromagnet SrRuO3 deposited on the cleaved ab surface of the spin-triplet superconductor Sr2RuO4. The films exhibit ferromagnetic transition near 160 K as in the bulk…

Strongly Correlated Electrons · Physics 2015-08-10 Yusuke Sugimoto , Muhammad Shahbaz Anwar , Seung Ran Lee , Yeong Jae Shin , Shingo Yonezawa , Tae Won Noh , Yoshiteru Maeno

High quality epitaxial thin films of LaBiMn4/3Co2/3O6 perovskite were fabricated on (001)-oriented SrTiO3 and LaAlO3 substrates by the pulsed laser deposition technique. Magnetization measurements reveal a strong magnetic anisotropy and a…

Materials Science · Physics 2008-02-18 R. Ranjith , Asish K. Kundu , M. Filippi , B. Kundys , W. Prellier , B. Raveau , J. Laverdiere , M. P. Singh , S. Jandl

Antiperovskite nitrides with the general formula M$_3$N have attracted significant attention due to their tunable electronic and magnetic properties. Among them are many cobalt-based compounds predicted to exhibit high thermodynamic…

We grew thin films of a heavy fermion chiral magnet YbNi$_3$Al$_9$ by using molecular beam epitaxy. They were grown on $c$-plane sapphire substrates under ultra-high vacuum while maintaining a deposition rate at a stoichiometric ratio among…

Strongly Correlated Electrons · Physics 2021-03-11 Hiroaki Shishido , Akira Okumura , Tatsuya Saimyoji , Shota Nakamura , Shigeo Ohara , Yoshihiko Togawa

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

Using density functional calculations we have examined the evolution of the electronic structure of SrRuO3 films grown on SrTiO3 substrates as a function of film thickness. At the ultrathin limit of two monolayers (RuO2-terminated surface)…

Strongly Correlated Electrons · Physics 2009-06-17 Priya Mahadevan , F. Aryasetiawan , A. Janotti , T. Sasaki

The authors investigated the structure and properties of GdBaCo$_{2}$O$_{5.5+\delta}$ thin films epitaxially grown on SrTiO$_{3}$ (001) single crystal substrates. The thin films were found to have a notable remnant magnetization above room…

Strongly Correlated Electrons · Physics 2009-01-13 G. Y. Wang , X. Y. Zhou , R. K. Zheng , Y. M. Hu , H. L. W. Chan , Y. Wang

Room temperature ferromagnetism was observed in In$_2$O$_3 thin films doped with 5 at.% vanadium, prepared by pulsed laser deposition at substrate temperatures ranging from 300 to 600 $\,^{\circ}{\rm C}$. X-ray absorption fine structure…

Materials Science · Physics 2015-06-17 Qi Feng , Harry J Blythe , A Mark Fox , Xiu-Fang Qin , Xiao-Hong Xu , Steve M Heald , Gillian A Gehring

We study the underlying chemical, electronic and magnetic properties of a number of magnetite based thin films. The main focus is placed onto NiO/Fe$_3$O$_4$(001) bilayers grown on MgO(001) and Nb-SrTiO$_3$(001) substrates. We compare the…

We have carried out extensive comparative studies of the structural and transport properties of CaRuO$_3$ thin films grown under various oxygen pressure. We find that the preferred orientation and surface roughness of the films are strongly…

Strongly Correlated Electrons · Physics 2020-09-11 Gopi Nath Daptary , Chanchal Sow , Suman Sarkar , Santosh Chiniwar , P. S. Anil Kumar , Anomitra Sil , Aveek Bid

We have grown thin films of the Heusler compound Co_2FeSi by RF magnetron sputtering. On (100)-oriented MgO substrates we find fully epitaxial (100)-oriented and L2_1 ordered growth. On Al_2O_3 (11-20) substrates, the film growth is…

A GaN film doped with 8.2 % Mn was grown by the molecular-beam-epitaxy technique. Magnetization measurements show that this highly Mn-doped GaN film exhibits ferromagnetism above room temperature. It is also revealed that the…

Strongly Correlated Electrons · Physics 2009-11-11 S. Yoshii , S. Sonoda , T. Yamamoto , T. Kashiwagi , M. Hagiwara , Y. Yamamoto , Y. Akasaka , K. Kindo , H. Hori

In scientific research, both positive and negative results play crucial role in advancing the field. Negative results provide valuable insights that can guide future experiments and prevent repeated failures. Here we present our growth…

Materials Science · Physics 2025-02-25 R. Choudhary , A. Rajapitamahuni , S. Guo , Qi. Jiang , J. -H. Chu , K. A. Mkhoyan , B. Jalan

The ground-state polarization of PbTiO3 thin films is studied using a microscopic effective Hamiltonian with parameters obtained from first-principles calculations. Under short-circuit electrical boundary conditions, (001) films with…

Materials Science · Physics 2009-10-31 Ph. Ghosez , K. M. Rabe