Microstructure of epitaxial strained BiCrO3 thin films

David, A.; Boullay, Ph.; Mangalam, R. V. K.; Barrier, N.; Prellier, W.
May 2010
Applied Physics Letters;5/31/2010, Vol. 96 Issue 22, p221904
Academic Journal
The structure and microstructure of fully strained BiCrO3 thin films have been investigated by x-rays diffraction and transmission electron diffraction, at room temperature. Interestingly, three structural variants are simultaneously stabilized within the film. While two of them are consistent with the existing phases in the bulk-below and above the 420 K structural transition, a different phase is identified. The existence of various structures has been attributed to the inhomogeneous distribution of local strains and oxygens resulting from a minimization of the strain-energy at the interface. These findings will open the route to a better understanding of Bi-based perovskites and metastable phases.


Related Articles

  • Microstructure, Mechanical Properties, and Pyroconductivity of NiFeO Composite Reinforced with ZrO Fibers. Du, Jinjing; Liu, Yihan; Yao, Guangchun; Hua, Zhongsheng; Long, Xiuli; Wang, Bin // Journal of Materials Engineering & Performance;Jun2013, Vol. 22 Issue 6, p1776 

    NiO-FeO-ZrO composites were fabricated by a two-step sintering process. No phase transformation for ZrO was observed. The as-prepared NiO-FeO-ZrO ceramic showed excellent mechanical properties because of the introduction of ZrO fiber. The values for both the bending strength and fracture...

  • Is ferroelectricity in BiMnO3 induced by superlattice? Yang, H.; Chi, Z.; Jiang, J. L.; Feng, W. J.; Dai, J. F.; Jin, C. Q.; Yu, R. C. // Journal of Materials Science;May2008, Vol. 43 Issue 10, p3604 

    The room-temperature structures of the BiMnO3 ceramic sample synthesized under high pressure have been investigated using transmission-electron microscopy (TEM) and theoretical simulations. The electron diffraction (ED) data revealed that the stoichiometric BiMnO3 crystallizes in the...

  • Mechanism of positive bias stress-assisted recovery in amorphous-indium-gallium-zinc-oxide thin-film transistors from negative bias under illumination stress. Um, Jae Gwang; Mativenga, Mallory; Jang, Jin // Applied Physics Letters;7/15/2013, Vol. 103 Issue 3, p033501 

    We have analyzed the effect of applying positive bias stress (PBS) to amorphous-indium-gallium-zinc-oxide (a-IGZO) thin-film transistors (TFTs) immediately after applying negative bias under illumination stress (NBIS). By monitoring TFT current-voltage and capacitance-voltage characteristics, we...

  • Influence of crystal polarity on crystal defects in GaP grown on exact Si (001). Beyer, Andreas; Németh, Igor; Liebich, Sven; Ohlmann, Jens; Stolz, Wolfgang; Volz, Kerstin // Journal of Applied Physics;Apr2011, Vol. 109 Issue 8, p083529 

    For the implementation of optoelectronic devices on silicon, which could be realized by a combination of Si and direct-bandgap III/V semiconductors, a defect free nucleation layer of GaP on Si is essential. This paper summarizes the results of structural investigations carried out by...

  • Potassium induced phase transition of FePc thin films. Roth, F.; König, A.; Kraus, R.; Knupfer, M. // Journal of Chemical Physics;5/21/2008, Vol. 128 Issue 19, p194711 

    We have studied the structure and stoichiometry of potassium doped iron phthalocyanine (FePc) films using a combination of electron diffraction and core level excitation studies. We show that iron phthalocyanine undergoes structural phase transitions upon potassium addition, which can be...

  • Photoinduced absorption and anomalous dichroism in NaCa2Mn2V3O12 garnet as evidence for the formation of oxygen hole dynamics. Eremenko, V. V.; Gnatchenko, S. L.; Kachur, I. S.; Piryatinskaya, V. G.; Ratner, A. M.; Shapiro, V. V.; Kosymna, M. B.; Nazarenko, B. P.; Puzikov, V. M. // Low Temperature Physics;Nov2005, Vol. 31 Issue 11, p983 

    It is shown that long-lived photoinduced dichroism in garnets is caused by photoproduced charges with anisotropic structure, which retains a memory of the pumping light polarization for a long time, while photoinduced absorption is due to all photoproduced charges irrespective of their intrinsic...

  • Experimental determination of the spatial distribution of electron defects in La2 - x Sr x CuO4 and Nd2 - x Ce x CuO4 crystal lattices. Bordovskii, G. B.; Marchenko, A. V.; Seregin, P. P.; Terukov, E. I. // Technical Physics Letters;May2008, Vol. 34 Issue 5, p397 

    The data of M�ssbauer emission spectroscopy on 67Cu(67Zn) and 67Ga(67Zn) isotopes show that holes appearing as a result of the Sr2+ substitution for La3+ in the La2 - x Sr x CuO4 crystal lattice are localized predominantly at oxygen atoms occurring in the same atomic plane as the copper...

  • Fluorescence quenching of vaporous polycyclic aromatic hydrocarbons by oxygen. Zalesskaya, G.; Piuzzi, F.; Sambor, E. // Optics & Spectroscopy;Apr2007, Vol. 102 Issue 4, p503 

    The fluorescence quenching by oxygen of vapors of nine polycyclic aromatic hydrocarbons with strongly different oxidation potentials 0.44 eV < E ox < 1.61 eV (anthracene, 9-methylanthracene, 2-aminoanthracene, 9,10-dibromanthracene, pyrene, chrysene, phenanthrene, fluoranthene, and carbazole) is...

  • Vibrational Character of the Hydrogen-Oxidation Process Initiated by a Pulsed Electron Beam. Pushkarev, A. I.; Remnev, G. E. // Combustion, Explosion, & Shock Waves;Jul2005, Vol. 41 Issue 4, p375 

    Results of an experimental study of kinetics of hydrogen oxidation in a stoichiometric mixture with oxygen under initiation of ignition by a pulsed electron beam in a closed steel reactor are described. It is shown that the process has an oscillatory character and resembles the regime of cold...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics