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We have investigated the magnetodynamic properties of $\text{La}_{0.7}\text{Sr}_{0.3}\text{MnO}_3$ (LSMO) films of thickness 10, 15 and 30 nm grown on (111)-oriented SrTi$\text{O}_3$ (STO) substrates by pulsed laser deposition.…

Mesoscale and Nanoscale Physics · Physics 2016-08-11 Vegard Flovik , Ferran Macià , Sergi Lendínez , Joan Manel Hernàndez , Ingrid Hallsteinsen , Thomas Tybell , Erik Wahlström

We have studied the properties of relatively thick (about 120 nm) magnetic composite films grown by pulsed laser deposition method using (GaSb)$_{0.59}$(MnSb)$_{0.41}$ eutectic compound as a target for sputtering. For the studied films we…

We have grown epitaxial thin-films of the orthorhombic phase of YMnO3 oxide on Nb:SrTiO3(001) substrates and their structure, magnetic and dielectric response have been measured. We have found that a substrate-induced strain produces an…

Strongly Correlated Electrons · Physics 2007-05-23 X. Marti , V. Skumryev , V. Laukhin , F. Sanchez , M. V. Garcia-Cuenca , C. Ferrater , M. Varela , J. Fontcuberta

We studied the ferromagnetic topology in a Y$_{0.67}$Ca$_{0.33}$MnO$_3$ thin film with a combination of magnetic force microscopy and magnetization measurements. Our results show that the spin-glass like behavior, reported previously for…

Strongly Correlated Electrons · Physics 2015-06-12 Jeehoon Kim , N. Haberkorn , L. Civale , P. C. Dowden , R. Movshovich

A systematic study the magnetization in La0.8.MnO3 films of thickness varying from ultra-thin to bulk-like has been conducted. The study reveals suppression of the bulk magnetization for films up to at least 1600 A. In addition, the surface…

Strongly Correlated Electrons · Physics 2007-10-23 M. A. DeLeon , T. A. Tyson , C. Dubourdieu , A. Bossak , J. Dvorak , G. Bonfait

Thin films of the ferromagnetic metal SrRuO3 (SRO) show a varying easy magnetization axis depending on the epitaxial strain and undergo a metal-to-insulator transition with decreasing film thickness. We have investigated the magnetic…

High quality epitaxial thin films of Gd0.67Ca0.33MnO3 have been deposited onto (100) SrTiO3 substrates by pulsed-laser deposition. Enhanced properties in comparison with bulk samples were observed. The magnetic transition temperature (Tc)…

Strongly Correlated Electrons · Physics 2009-11-11 Yanwei MA , M. Guilloux-Viry , P. Barahona , O. Pena , C. Moure

Experimental efforts to stabilize ferromagnetism in ultrathin films of transition metal oxides have so far failed, despite expectations based on density functional theory (DFT) and DFT+U. Here, we investigate one of the most promising…

Strongly Correlated Electrons · Physics 2015-07-15 Liang Si , Zhicheng Zhong , Jan M. Tomczak , Karsten Held

The magnetization characteristic in a permalloy thin strip is investigated by electrically measuring the anisotropic magnetoresistance and ferromagnetic resonance in in-plane and out-of-plane configurations. Our results indicate that the…

Materials Science · Physics 2014-03-05 Ziqian Wang , Guolin Yu , Xinzhi Liu , Bo Zhang , Xiaoshuang Chen , Wei Lu

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

We report the structural and physical properties of epitaxial Bi2FeCrO6 thin films on epitaxial SrRuO3 grown on (100)-oriented SrTiO3 substrates by pulsed laser ablation. The 300 nm thick films exhibit both ferroelectricity and magnetism at…

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

We studied the electronic and magnetic dynamics of ferromagnetic insulating BaFeO3 thin films by using pump-probe time-resolved resonant x-ray reflectivity at the Fe 2p edge. By changing the excitation density, we found two distinctly…

Strongly Correlated Electrons · Physics 2016-06-22 T. Tsuyama , S. Chakraverty , N. Pontius , C. Schussler-Langeheine , H. Y. Hwang , Y. Tokura , H. Wadati

We report the observation that thermoelectric thin-films of La-doped SrTiO3 grown on SrTiO3 substrates yield anomalously high values of thermopower to give extraordinary values of power factor at 300K. Thin-films of Sr0.98La0.02TiO3, grown…

Surface and ferroelectric properties of PbTiO$_3$ thin films are investigated using an interatomic potential approach with parameters computed from first-principles calculations. We show that a model developed for the bulk describes…

Materials Science · Physics 2009-11-11 M. Sepliarsky , M. G. Stachiotti , R. L. Migoni

Single phase (001)-oriented BiFeO3 (BFO) thin films grown by pulsed laser deposition can only be obtained in a narrow window of deposition pressure and temperature and have a low magnetic moment. Out of the stability window Fe- or Bi-rich…

Materials Science · Physics 2007-05-23 Helene Bea , Manuel Bibes , Eric Jacquet , Karsten Rode , Peter Bencok , Agnes Barthelemy

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

Using the spectroscopies based upon x-ray absorption, we have studied the structural and magnetic properties of Zn$_{1-x}$Co$_{x}$O films ($x$ = 0.1 and 0.25) produced by reactive magnetron sputtering. These films show ferromagnetism with a…

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

Manganite thin films are promising candidates for studying the strongly correlated electron systems. Understanding the growth-and morphology-driven changes in the physical properties of manganite thin films is vital for their applications…