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We report the growth by molecular beam epitaxy of highly resistive GdN, using intentional doping with magnesium. Mg-doped GdN layers with resistivities of 1000 {\Omega}.cm and carrier concentrations of 10E16 cm-3 are obtained for films with…

We report measurements of the surface impedance $Z_s=R_s+iX_s$ of $(Pr_xY_{1-x})Ba_2Cu_3O_{7-\delta}$, $(x=0,0.15,0.23,0.3,0.4,0.5)$. Increasing $Pr$ concentration leads to some striking results not observed in samples doped by non-magnetic…

Superconductivity · Physics 2015-06-25 H. Srikanth , S. Sridhar , D. A. Gajewski , M. B. Maple

We present the results of a systematic x-ray scattering study of the charge and orbital ordering in the manganite series Pr$_{1-x}$Ca$_x$MnO$_3$ with $x$=0.25, 0.4 and 0.5. The temperature dependence of the scattering at the charge and…

Strongly Correlated Electrons · Physics 2009-10-31 M. v. Zimmermann , C. S. Nelson , J. P. Hill , Doon Gibbs , M. Blume , D. Casa , B. Keimer , Y. Murakami , C. -C. Kao , C. Venkataraman , T. Gog , Y. Tomioka , Y. Tokura

We present a systematic study of the magnetic properties of semiconducting ZnFe$_2$O$_4$ thin films fabricated by pulsed laser deposition at low and high oxygen partial pressure and annealed in oxygen and argon atmosphere, respectively. The…

Applied Physics · Physics 2020-10-28 Vitaly Zviagin , Chris Sturm , Pablo Esquinazi , Marius Grundmann , Rüdiger Schmidt-Grund

Antiferromagnets are emerging as promising alternatives to ferromagnets in spintronics applications. A key feature of antiferromagnets is their anisotropic magnetoresistance (AMR), which has the potential to serve as a sensitive marker for…

The perturbation method for the analysis of thin, manifestly deformed films is given. The application of the method the excitons in the film has shown that those have the effective mass essentially depending on the propagation direction.…

Soft Condensed Matter · Physics 2007-05-23 Vjekoslav Sajfert

Oriented Strontium Ferrite films with the c axis orientation were deposited with varying oxygen partial pressure on Al2O3(0001) substrate using PLD technique. The angle dependent magnetic hysteresis, remanent coercivity and temperature…

Materials Science · Physics 2014-03-05 Debangsu Roy , P S Anil Kumar

Versatile features of impurity doping effects on perovskite manganites, $R_{0.6}$Sr$_{0.4}$MnO$_{3}$, have been investigated with varying the doing species as well as the $R$-dependent one-electron bandwidth. In ferromagnetic-metallic…

Strongly Correlated Electrons · Physics 2009-11-13 H. Sakai , K. Ito , T. Nishiyama , X. Z. Yu , Y. Matsui , S. Miyasaka , Y. Tokura

We report on the structural and magnetic characterization of (110) and (001) La2/3Ca1/3MnO3 (LCMO) epitaxial thin films simultaneously grown on (110) and (001)SrTiO3 substrates, with thicknesses t varying between 8 nm and 150 nm. It is…

The magnetoimpedance effect is a versatile tool to investigate ferromagnetic materials, revealing aspects on the fundamental physics associated to magnetization dynamics, broadband magnetic properties, important issues for current and…

Materials Science · Physics 2015-06-23 M. A. Corrêa , F. Bohn , R. B. da Silva , R. L. Sommer

A La0.75Ca0.25MnO3-film grown by metalorganic aerosol deposition technique was investigated by scanning tunnelling microscopy and spectroscopy. A small spot was found on the surface which exhibits the expected magnetic field dependence of…

Strongly Correlated Electrons · Physics 2009-12-15 B. Damaschke , T. Mildner , V. Moshnyaga , K. Samwer

It is pointed, that effects of refraction of electromagnetic radiation in the medium, formed by the magnetized vacuum, become essential already for relatively soft photons, not hard enough to create an electron-positron pair, including…

High Energy Physics - Theory · Physics 2007-05-23 A. E. Shabad

We measured the chemical and magnetic depth profiles of a single crystalline (La$_{1-x}$Pr$_x$)$_{1-y}$Ca$_y$MnO$_{3-{\delta}}$ (x = 0.52\pm0.05, y = 0.23\pm0.04, {\delta} = 0.14\pm0.10) film grown on a NdGaO3 substrate using x-ray…

Materials Science · Physics 2014-11-18 Surendra Singh , M. R. Fitzsimmons , T. Lookman , J. D. Thompson , H. Jeen , A. Biswas , M. A. Roldan , M. Varela

We experimentally investigated disordered PtxCo1-x (here x: 0.4, 0.5 and 0.6) alloy thin films magnetic properties which depended on Pt content. The magnetic properties of PtCo films were described with two effects, one of them is the…

Materials Science · Physics 2014-01-28 Mustafa Erkovan , Melek Türksoy Öcal , Osman Öztürk

We present a comparison of the in-plane length scale over which charge and magnetism are correlated in (La0.4Pr0.6)1-xCaxMnO3 films with x = 0.33 and 0.375, across the metal to insulator transition (MIT) temperature. We combine electrical…

Strongly Correlated Electrons · Physics 2016-11-17 Surendra Singh , J. W. Freeland , M. R. Fitzsimmons , H. Jeen , A. Biswas

We report coherent x-ray scattering studies of charge and orbital domains in manganite systems. The experiments were carried out on LaMnO_3 and Pr_{0.6}Ca_{0.4}MnO_3, with the incident photon energy tuned near the Mn K edge. At room…

Strongly Correlated Electrons · Physics 2009-11-07 C. S. Nelson , J. P. Hill , Doon Gibbs , F. Yakhou , F. Livet , Y. Tomioka , T. Kimura , Y. Tokura

Magnon-polarons are coherently mixed quasiparticles that originate from the strong magnetoelastic coupling of lattice vibrations and spin waves in magnetic-ordered materials. Recently, magnon-polarons have attracted a lot of attention since…

Materials Science · Physics 2020-11-17 Wenyu Xing , Yang Ma , Yunyan Yao , Ranran Cai , Yuan Ji , Richen Xiong , Ka Shen , Wei Han

The rapid progress in antiferromagnetic and altermagnetic spintronics has led to increased interest in magnetic materials with vanishing net magnetization but strong spin-dependent transport properties. As thin films of such materials…

Materials Science · Physics 2026-01-09 Katarzyna Gas , Maciej Sawicki

Enhanced magnetic moment and coercivity in SrRuO3 thin films are significant issues for advanced technological usages and hence are researched extensively in recent times. Most of the previous reports on thin films with enhanced magnetic…

Strongly Correlated Electrons · Physics 2020-06-24 Shekhar Tyagi , Gaurav Sharma , D. M. Phase , V. R. Reddy , V. G. Sathe

Strained Fe-Co films have recently been demonstrated to exhibit a large magnetocrystalline anisotropy (MCA) and thus to be of potential interest as magnetic storage material. Here, we show by means of density-functional (DF) calculations,…

Materials Science · Physics 2015-05-27 Carsten Neise , Stephan Schönecker , Manuel Richter , Klaus Koepernik , Helmut Eschrig