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We report the first combined study of the low-energy electronic band structure of epitaxial Sr$_3$Ru$_2$O$_7$ films using angle-resolved photoemission spectroscopy and density functional theory. The complete Fermi-surface topography of the…

We investigated transport, magnetotransport, and broadband optical properties of the half-Heusler compound YbPtBi. Hall measurements evidence two types of charge carriers: highly mobile electrons with a temperature-dependent concentration…

Strongly Correlated Electrons · Physics 2017-04-11 M. B. Schilling , A. Löhle , D. Neubauer , C. Shekhar , C. Felser , M. Dressel , A. V. Pronin

The electronic structure of thin films of FeTe grown on Bi$_2$Te$_3$ is investigated using angle-resolved photoemission spectroscopy, scanning tunneling microscopy and first principles calculations. As a comparison, data from cleaved bulk…

PtSe2 is attracting considerable attention as a high mobility two-dimensional material with envisionned applications in microelectronics, photodetection and spintronics. The growth of high quality PtSe2 on insulating substrates with…

In this work, we report the effects of calcination temperature on structural, dielectric, semiconducting and optical properties of YFeO3 nanoparticles prepared by a high energy ball milling process. The structural analysis of the X-ray…

Materials Science · Physics 2019-10-08 Chandra Bhal Singh , Dinesh Kumar , Narendra Kumar Verma , Akhilesh Kumar Singh

High quality epitaxial thin films of Jeff=1/2 Mott insulator Sr2IrO4 with increasing in-plane tensile strain have been grown on top of SrTiO3(001) substrates. Increasing the in-plane tensile strain up to ~0.3% was observed to drop the c/a…

Thin films of the wide band gap semiconductor $\beta$-Ga$_2$O$_3$ have a high potential for applications in transparent electronics and high power devices. However, the role of interfaces remains to be explored. Here, we report on…

WO$_3$ is a binary 5d compound which has attracted remarkable attention due to the vast array of structural transitions that it undergoes in its bulk form. In the bulk, a wide range of electronic properties has been demonstrated, including…

We present a new experiment on YBa_2Cu_3O_{7-x} (YBCO) thin films using spatially resolved heavy ion irradiation. Structures consisting of a periodic array of strong and weak pinning channels were created with the help of metal masks. The…

Superconductivity · Physics 2009-10-31 M. Basset , G. Jakob , G. Wirth , H. Adrian

High-quality (001)-oriented (pseudo-cubic notation) ferromagnetic YTiO$_3$ thin films were epitaxially synthesized in a layer-by-layer way by pulsed laser deposition. Structural, magnetic and electronic properties were characterized by…

Materials Science · Physics 2015-09-15 Yanwei Cao , P. Shafer , Xiaoran Liu , D. Meyers , M. Kareev , S. Middey , J. W. Freeland , E. Arenholz , J. Chakhalian

Normal state resistivity and Hall effect are shown to be successfully modeled by a two-band model of holes and electrons that is applied self-consistently to (i) DC transport data reported for eight bulk-crystal and six oriented-film…

Superconductivity · Physics 2012-02-09 Dale R. Harshman , John D. Dow , Anthony T. Fiory

We have investigated the correlation between structural and transport properties in sputtered $\beta$-FeSe films grown onto SrTiO$_3$ (100). The growth parameters, such as substrate temperature and thickness, have been varied in order to…

Superconductivity · Physics 2019-10-23 M. V. Ale Crivillero , M. L. Amigó , N. Haberkorn , G. Nieva , J. Guimpel

We explore the electrical transport and magneto-conductance in quasi two-dimensional strongly correlated ultrathin films of LaNiO$_{3}$ (LNO) to investigate the effect of hetero-epitaxial strain on electron-electron and electron-lattice…

Strongly Correlated Electrons · Physics 2015-05-28 E. J. Moon , B. A. Gray , M. Kareev , J. Liu , S. G. Altendorf , F. Strigari , L. H. Tjeng , J. W. Freeland , J. Chakhalian

We have investigated change in the electronic structures of atomically-controlled La$_{1-x}$Sr$_x$MnO$_3$ (LSMO) thin films as a function of hole-doping level ($x$) in terms of {\it in situ} photoemission spectroscopy (PES) and x-ray…

Strongly Correlated Electrons · Physics 2009-11-10 K. Horiba , A. Chikamatsu , H. Kumigashira , M. Oshima , N. Nakagawa , M. Lippmaa , K. Ono , M. Kawasaki , H. Koinuma

Presently, cerium-doped LaMnO$_3$ is vividly discussed as an electron-doped counterpart prototype to the well-established hole-doped mixed-valence manganites. Here, La$_{0.7}$Ce$_{0.3}$MnO$_3$ thin films of different thicknesses, degrees of…

Materials Science · Physics 2015-01-20 Andreas Thiessen , Elke Beyreuther , Robert Werner , Reinhold Kleiner , Dieter Koelle , Lukas M. Eng

We investigate structural and transport properties of highly Ru-deficient SrRu0.7O3 thin films prepared by molecular beam epitaxy on (001) SrTiO3 substrates. To distinguish the influence of the two types of disorders in the films, Ru…

N. Doiron-Leyraud et al. in [1] report on the experimental observation of small holes pockets in the energy spectrum of YBa2Cu3Oy (YBCO) coming below the transition into the charge ordered (CO) phase as a result of a Fermi surface (FS)…

Superconductivity · Physics 2014-10-08 Lev P. Gor'kov , Gregory B. Teitel'baum

Recent developments in high-temperature superconductivity highlight a generic tendency of the cuprates to develop competing electronic (charge) supermodulations. While coupled to the lattice and showing different characteristics in…

Magnetic insulators such as yttrium iron garnet, Y3Fe5O12, with extremely low magnetic damping have opened the door for low power spin-orbitronics due to their low energy dissipation and efficient spin current generation and transmission.…

Mesoscale and Nanoscale Physics · Physics 2016-01-20 Shaozhen Li , Wei Zhang , Junjia Ding , John E. Pearson , Valentine Novosad , Axel Hoffmann

Thin films of the ferromagnet Fe$_2$Ge were grown via molecular beam epitaxy, and their electrical and magneto-transport properties measured for the first time. X-ray diffraction and vibrating sample magnetometry measurements confirmed the…