Epitaxial thin films of ordered double perovskite SrLaVMoO6

2012 ◽  
Vol 1454 ◽  
pp. 21-26
Author(s):  
Katsutoshi. Sanbou ◽  
Keita. Sakuma ◽  
Tetsuya. Miyawaki ◽  
Kenji. Ueda ◽  
Hidefumi. Asano
Keyword(s):  
Thin Films ◽  
Double Perovskite ◽  
Superlattice Reflection ◽  
Oxygen Nonstoichiometry ◽  
Diffraction Peak ◽  
Antiferromagnetic Order ◽  
Epitaxial Thin Films ◽  
Metallic Behavior ◽  
Temperature Dependences ◽  
Properties Of Materials

ABSTRACTEpitaxial thin films of SrLaVMoO6 with an ordered double perovskite structure have been grown on (001) and (111) SrTiO3 substrates by magnetron sputtering. The optimized (111) film exhibited a clear (111) diffraction peak, which is a superlattice reflection of double perovskite unite cell, indicating clear B-site ordering. Temperature dependences of resistivity ρ show metallic behavior and transition point at 140~150 K, of which behavior is reminiscent of the electrical properties of materials showing long-range magnetic or antiferromagnetic order. XPS results of the Mo 3d core level spectra are discussed in terms of the B-site ordering and oxygen nonstoichiometry.

Ferromagnetic resonance in double perovskite epitaxial thin films of La2NiMnO6 on SrTiO3 and NdGaO3 substrates

2010 ◽  
Vol 97 (7) ◽  
pp. 072511 ◽  
Author(s):  
S. Kazan ◽  
F. A. Mikailzade ◽  
M. Özdemir ◽  
B. Aktaş ◽  
B. Rameev ◽  
...  
Keyword(s):  
Thin Films ◽  
Ferromagnetic Resonance ◽  
Double Perovskite ◽  
Epitaxial Thin Films

scholarly journals Aqueous Chemical Solution Deposition of Functional Double Perovskite Epitaxial Thin Films

2020 ◽  
Vol 26 (42) ◽  
pp. 9338-9347 ◽  
Author(s):  
Hailin Wang ◽  
Carlos Frontera ◽  
Javier Herrero‐Martín ◽  
Alberto Pomar ◽  
Pere Roura ◽  
...  
Keyword(s):  
Thin Films ◽  
Chemical Solution Deposition ◽  
Double Perovskite ◽  
Epitaxial Thin Films ◽  
Chemical Solution ◽  
Solution Deposition

scholarly journals Epitaxial thin films of the multiferroic double perovskite Bi2FeCrO6 grown on (100)-oriented SrTiO3 substrates: Growth, characterization, and optimization

2009 ◽  
Vol 105 (6) ◽  
pp. 061621 ◽  
Author(s):  
Riad Nechache ◽  
Catalin Harnagea ◽  
Louis-Philippe Carignan ◽  
Olivier Gautreau ◽  
Lucian Pintilie ◽  
...  
Keyword(s):  
Thin Films ◽  
Double Perovskite ◽  
Epitaxial Thin Films ◽  
Growth Characterization

scholarly journals Epitaxial thin films of multiferroic Bi2FeCrO6 with B-site cationic order

2007 ◽  
Vol 22 (8) ◽  
pp. 2102-2110 ◽  
Author(s):  
Riad Nechache ◽  
Louis-Philippe Carignan ◽  
Lina Gunawan ◽  
Catalin Harnagea ◽  
Gianluigi A. Botton ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Room Temperature ◽  
Magnetic Ordering ◽  
Double Perovskite ◽  
Orientation Dependence ◽  
Cation Ordering ◽  
Epitaxial Thin Films ◽  
Transmission Electron Microscopy Analysis ◽  
Electron Microscopy Analysis

Epitaxial thin films of Bi2FeCrO6 (BFCO) have been synthesized by pulsed laser deposition on SrRuO3 on (100)- and (111)-oriented SrTiO3 substrates. Detailed x-ray diffraction and cross-section transmission electron microscopy analysis revealed a double perovskite crystal structure of the BFCO epitaxial films very similar to that of BiFeO3 along with a particularly noteworthy Fe3+/Cr3+ cation ordering along the [111] direction. The films contain no detectable magnetic iron oxide impurities and have the correct cationic average stoichiometry throughout their thickness. They however exhibit a slight modulation in the Fe and Cr compositions forming complementary stripe patterns, suggesting minor local excess or depletion of Fe and Cr. The epitaxial BFCO films exhibit good ferroelectric and piezoelectric properties, in addition to magnetic properties at room temperature, as well as an unexpected crystallographic orientation dependence of their room-temperature magnetic properties. Our results qualitatively confirm the predictions made using the ab initio calculations: the double perovskite structure of BFCO films exhibit a Fe3+/Cr3+ cation ordering and good multiferroic properties, along with the unpredicted existence of magnetic ordering at room temperature.

Strain-induced metallic behavior in PrNiO3 epitaxial thin films

2002 ◽  
Vol 37 (2) ◽  
pp. 201-208 ◽  
Author(s):  
A. Venimadhav ◽  
I. Chaitanya Lekshmi ◽  
M.S. Hegde
Keyword(s):  
Thin Films ◽  
Epitaxial Thin Films ◽  
Metallic Behavior

Growth of epitaxial thin films of the ordered double perovskite La2NiMnO6 on different substrates

2006 ◽  
Vol 89 (2) ◽  
pp. 022509 ◽  
Author(s):  
H. Guo ◽  
J. Burgess ◽  
S. Street ◽  
A. Gupta ◽  
T. G. Calvarese ◽  
...  
Keyword(s):  
Thin Films ◽  
Double Perovskite ◽  
Epitaxial Thin Films

Correlation Between Structural and Electronical Properties Of Strained V2O3 Thin Films

1996 ◽  
Vol 441 ◽  
Author(s):  
H. Schuler ◽  
S. Klimm ◽  
S. Horn
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Growth Conditions ◽  
Metallic Phase ◽  
Epitaxial Thin Films ◽  
X Ray Diffraction ◽  
Island Growth ◽  
Temperature Dependent ◽  
Metallic Behavior ◽  
Afm Imaging

AbstractEpitaxial thin films of V2O3 were grown on c-axis oriented sapphire substrates by reactive e-beam evaporation. The high orientation and epitaxy is shown by low energy electron and x-ray diffraction. The microstucture of the films was investigated by AFM imaging. The measurements show an island growth mode with a temperature dependent increase of the grain size. At a growth temperature of above 700°C a change of the surface structure is observed, which produces much more structured and irregular shaped crystallites. High temperature growth also causes changes in the electronical properties, due to an increased stress in the films as measured by XRD. The metal-insulator transition (MIT) and the properties of the metallic phase of the films were determined mainly by temperature dependent electrical resistivity measurements. The metallic properties are distorted in films grown at low temperature (T<500°C) probably due to defects, dislocations and grain boundaries. Favorable growth conditions for films showing a single crystal like MIT were found in a narrow temperature range around 550°C. For higher growth temperatures (T>650°C) metallic behavior at high temperatures is suppressed by an in plane tensile stress. The electronic properties of such films are similar to those of chromium doped V2O3. The relation between growth conditions, structural properties and resulting electronic properties is discussed.

scholarly journals Rapid Thermal Annealing of Double Perovskite Thin Films Formed by Polymer Assisted Deposition

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4966
Author(s):  
Hailin Wang ◽  
Carlos Frontera ◽  
Benjamín Martínez ◽  
Narcís Mestres
Keyword(s):  
Thin Films ◽  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Magnetic Behavior ◽  
Double Perovskite ◽  
Epitaxial Films ◽  
Epitaxial Thin Films ◽  
Heating Rates ◽  
Solution Deposition ◽  
Final Microstructure

The annealing process is an important step common to epitaxial films prepared by chemical solution deposition methods. It is so because the final microstructure of the films can be severely affected by the precise features of the thermal processing. In this work we analyze the structural and magnetic properties of double perovskite La2CoMnO6 and La2NiMnO6 epitaxial thin films prepared by polymer-assisted deposition (PAD) and crystallized by rapid thermal annealing (RTA). It is found that samples prepared by RTA have similar values of saturation magnetization and Curie temperature to their counterparts prepared by using conventional thermal annealing (CTA) processes, thus indicating low influence of the heating rates on the B-B’ site cationic ordering of the A2BB’O6 double perovskite structure. However, a deeper analysis of the magnetic behavior suggested some differences in the actual microstructure of the films.

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