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We fabricated two types of cobalt-ferrite (001) thin films, insulative Fe-rich cobalt-ferrite CoxFe3-xO4+{\delta} (I-CFO) and conductive Fe-rich cobalt-ferrite CoyFe3-yO4 (C-CFO), with perpendicular magnetic anisotropy (PMA) on MgO (001)…

By means of magneto-optical Kerr effect we observe spin reorientations from in-plane to out-of-plane and vice versa upon annealing thin Fe films on Ag(001) at increasing temperatures. Scanning tunneling microscopy images of the different Fe…

Materials Science · Physics 2009-10-31 D. M. Schaller , D. E. Buergler , C. M. Schmidt , F. Meisinger , H. -J. Guentherodt

We prepared epitaxial ferromagnetic manganite films on bicrystal substrates by pulsed laser ablation. Their low- and high-field magnetoresistance (MR) was measured as a function of magnetic field, temperature and current. At low…

Strongly Correlated Electrons · Physics 2009-10-31 W. Westerburg , F. Martin , S. Friedrich , M. Maier , G. Jakob

Recent advances in high-density magnetic storage and spin electronics are based on the use of magnetic materials along with conventional microelectronic materials (metals, insulators and semiconductors). The unit information (bit) is stored…

Classical Physics · Physics 2008-04-25 C. Tannous , J. Gieraltowski

Thin films of Co-TiO2 are deposited on silicon and quartz substrates using Pulse Laser Deposition (PLD) process at various oxygen partial pressures ranging from 6.6 x 10-3 Pascals (Pa) to 53 Pa. Crystal structure, transport and magnetic…

Materials Science · Physics 2007-05-23 Bakhtyar Ali , Abdul K Rumaiz , S. Ismat Shah , Arif Ozbay , Edmund R Nowak

In ferromagnetic (FM) metal/organic semiconductor (OSC) heterostructures charge transfer can occur which leads to induction of magnetism in the non-magnetic OSC. This phenomenon has been described by the change in the density of states in…

Perpendicular magnetic anisotropy (PMA) energy up to $K_{\mathrm{u}}=6.1\pm0.8$ MJ m$^{-3}$ is demonstrated in this study by inducing large lattice-distortion exceeding 3% at room temperature in epitaxially distorted cobalt ferrite Co$ _{x}…

Materials Science · Physics 2021-12-03 Hiroshige Onoda , Hiroaki Sukegawa , Jun-ichiro Inoue , Hideto Yanagihara

We have investigated the role of the stress-induced by the presence of the substrate in thin films of colossal magnetoresistive manganites on structural, resistive and magnetic properties. Because of the strong coupling between the small…

Materials Science · Physics 2009-11-07 W. Prellier , Ch. Simon , B. Mercey , M. Hervieu , A. M. Haghiri-Gosnet , D. Saurel , Ph. Lecoeur , B. Raveau

Al2O3 thin films have been deposited at substrate temperatures between 500{\deg}C to 600{\deg}C by reactive magnetron sputtering using an additional arbitrary substrate bias to tailor the energy distribution of the incident ions. The films…

Tetragonal Mn$_x$Ga$_{1-x}$ (x=0.70, 0.75) thin films grown on SrTiO$_3$ substrates at different temperatures and thicknesses exhibit perpendicular magnetic anisotropy with coercive fields between 1-2 T. Transmission electron microscopy…

Materials Science · Physics 2015-04-14 J. Karel , F. Casoli , P. Lupo , L. Nasi , S. Fabbrici , L. Righi , F. Albertini , C. Felser

To test the hypothesis that the chiral anomaly is responsible for negative magnetoresitance (MR) in \atn{}, we have studied magnetotransport in strained, epitaxial films of pure \aSn{} and the alloy \aSnGe{} that are in the Dirac semimetal…

Materials Science · Physics 2026-04-30 Sunny Phan , Andrei Kogan , Jesse Thompson , Trent Johnson , Alexander Khaetskii , Arnold Kiefer

The hole-doped manganite (La$_{1-y}$Pr$_{y}$)$_{0.67}$Ca$_{0.33}$MnO$_3$ (LPCMO) shows electronic phase separation between ferromagnetic metallic (FMM) and anti-ferromagnetic charge-ordered insulating (AFM-COI) regions. In this study,…

Strongly Correlated Electrons · Physics 2025-12-11 Monique Kubovsky , Dylan Tagrin , Amlan Biswas

We consider a thin film of $d$-wave altermagnet bent in a stretching-free manner and demonstrate that gradients of the film curvature induce a local magnetization which is approximately tangential to the film. The magnetization amplitude…

Strongly Correlated Electrons · Physics 2025-05-16 Kostiantyn V. Yershov , Olena Gomonay , Jairo Sinova , Jeroen van den Brink , Volodymyr P. Kravchuk

A model is introduced for the theoretical description of nanoscale magnetic films with high perpendicular anisotropy. In the model the magnetic film is described in terms of single domain magnetic grains, interacting via exchange as well as…

Condensed Matter · Physics 2009-10-28 U. Nowak

Ferrimagnetic Mn$_2$Fe$_x$Ga $(0.26 \leq x \leq 1.12)$ thin films have been characterised by X-ray diffraction, SQUID magnetometry, X-ray absorption spectroscopy, X-ray magnetic circular dichroism and M\"{o}ssbauer spectroscopy with the aim…

The transport and magnetic properties in ferromagnetic manganese-oxide thin films are studied based on the model of the coupling between the mobile d-electrons and the core spins in Mn ions. The spontaneous magnetization and the resistivity…

Condensed Matter · Physics 2019-08-15 Liang-Jian Zou , X. G. Gong , Qing-Qi Zheng , C. Y. Pan

Nanostructured Pd-Fe thin films with varied Fe content were prepared by electrodeposition technique from organic electrolytes on Cu and brass substrates. The structure and the magnetic properties of the films were investigated prior to…

We have observed that CoO films grown on different substrates show dramatic differences in their magnetic properties. Using polarization dependent x-ray absorption spectroscopy at the Co L$_{2,3}$ edges, we revealed that the magnitude and…

Strongly Correlated Electrons · Physics 2007-05-23 S. I. Csiszar , M. W. Haverkort , Z. Hu , A. Tanaka , H. H. Hsieh , H. -J. Lin , C. T. Chen , T. Hibma , L. H. Tjeng

AB$_2$O$_4$ normal spinels with a magnetic B site can host a variety of magnetic and orbital frustrations leading to spin-liquid phases and field-induced phase transitions. Here we report the first epitaxial growth of (111)-oriented…

The growth of magnetic films with ferromagnetic interactions between nearest-neighbor spins is studied in $(d+1)-$dimensional rectangular geometries for $d = 1,2$. Magnetic films are grown irreversibly by adding spins at the boundaries of…

Statistical Mechanics · Physics 2009-11-11 Julián Candia , Ezequiel V. Albano
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