Orbital ordering and enhanced magnetic frustration of strained BiMnO 3 thin films
نویسنده
چکیده
– Epitaxial thin films of multiferroic perovskite BiMnO3 were synthesized on SrTiO3 substrates, and orbital ordering and magnetic properties of the thin films were investigated. The ordering of the Mn eg orbitals at a wave vector ( 1 4 1
منابع مشابه
Ferroelectric Sm-Doped BiMnO3 Thin Films with Ferromagnetic Transition Temperature Enhanced to 140 K
A combined chemical pressure and substrate biaxial pressure crystal engineering approach was demonstrated for producing highly epitaxial Sm-doped BiMnO(3) (BSMO) films on SrTiO(3) single crystal substrates, with enhanced magnetic transition temperatures, TC up to as high as 140 K, 40 K higher than that for standard BiMnO(3) (BMO) films. Strong room temperature ferroelectricity with piezorespons...
متن کاملDisorder-induced melting of the charge order in thin films of Pr0.5Ca0.5MnO3
– We have studied the magnetic-field-induced melting of the charge order in thin films of Pr0.5Ca0.5MnO3 (PCMO) films on SrTiO3 (STO) by X-ray diffraction, magnetization and transport measurement. At small thickness (25 nm) the films are under tensile strain and the low-temperature melting fields are of the order of 20 T or more, comparable to the bulk value. With increasing film thickness the ...
متن کاملEnhanced Charge Transport in Printed Small Organic Semiconductor Thin Films due to Strained Molecular Packing
Figure 1. a, Schematic of the “solution-shearing” printing method (inset shows chemical structure of TIPS-pentacene). b–d, Optical micrographs (cross-polarized) of solutionsheared TIPS-pentacene thin films, fabricated at different printing speeds. The printing speed and the electrical performance of the films in thin film transistor devices are listed below each of the images. Copyright Nature ...
متن کاملMonitoring B-site ordering and strain relaxation in NiFe2O4 epitaxial films by polarized Raman spectroscopy
Polarized Raman spectra of NiFe2O4 (NFO) films of varying thickness and growth temperature are investigated and discussed. We find that the relaxed films obtained at higher temperatures on MgAl2O4 (MAO) substrate exhibit spectra identical to those of single crystals and provide strong indications for ordering of Ni2+ and Fe3+ at the octahedral sites. There is evidence for a certain degree of B-...
متن کاملStrain-induced ferromagnetism in antiferromagnetic LuMnO3 thin films.
Single phase and strained LuMnO(3) thin films are discovered to display coexisting ferromagnetic and antiferromagnetic orders. A large moment ferromagnetism (≈1μ(B)), which is absent in bulk samples, is shown to display a magnetic moment distribution that is peaked at the highly strained substrate-film interface. We further show that the strain-induced ferromagnetism and the antiferromagnetic o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006