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  1. No Access

    Article

    Mechanical Stresses and Giant Piezoresponse of the Surface of Textured K2Sr4Nb10O30 Ceramics

    Crystallographic characteristics of K2Sr4Nb10O30 ceramics have been compared to experimental data on the surface piezoresponse studied by method of scanning probe microscopy, which was used to estimate relative v...

    M. A. Bunin, O. A. Bunina, Yu. A. Kuprina, V. P. Zav’yalov in Technical Physics Letters (2019)

  2. No Access

    Chapter and Conference Paper

    The Effect of Mechanical Activation on the Structure and Dielectric Properties of PbYb1/2Nb1/2O3–PbFe1/2Nb1/2O3 Solid Solution Ceramics

    Recently we have found out that high-energy during mechanochemical synthesis stimulates disordering of Yb3+ and Nb5+ cations in the PbYb1/2Nb1/2O3 ( ceramics. However, one could expect a contamination of thus ...

    I. P. Raevski, A. A. Gusev, V. P. Isupov, M. A. Evstigneeva… in Advanced Materials (2019)

  3. No Access

    Chapter and Conference Paper

    Structural and Dielectric Studies of PbYb1/2Nb1/2O3 Ceramics with the Differing Degree of the Long-Range Compositional Ordering Fabricated by Mechanoactivation

    It was found out that compositional ordering degree S of Yb3+ and Nb5+ ions in PbYb1/2Nb1/2O3 ceramics and correspondingly both the temperature and diffusion of antiferroelectric phase transition can be varied wi...

    I. P. Raevski, Yu. A. Kuprina, I. N. Zakharchenko, A. A. Gusev… in Advanced Materials (2018)

  4. No Access

    Article

    Frequency dependence in the piezoresponse force microscopy of dense piezoceramics

    Images of the piezoresponses (PRs) in the frequency range of 15–2500 kHz are obtained for dense polarized PCR-1 piezoceramics. It is shown that in the region of resonance, the dependence of PR amplitudes on fr...

    M. A. Bunin, A. N. Rybyanets… in Bulletin of the Russian Academy of Science… (2016)

  5. No Access

    Article

    Lattice deformation in thin BiFeO3 and Ba0.8Sr0.2TiO3 epitaxial films on (001)MgO single crystalline substrates

    Bi0.98Nd0.02FeO3 (BNFO) and Ba0.8Sr0.2TiO3 (BST) epitaxial films produced by rf cathode sputtering on (001)MgO substrates are studied by means of XRD. The thickness dependences of uniform lattice deformations and...

    O. A. Bunina, D. V. Stryukov, Yu. I. Golovko… in Bulletin of the Russian Academy of Science… (2014)

  6. No Access

    Article

    Specific features of optical phonons in raman spectra of an array of vertical ZnO microrods on silicon

    The polarized Raman spectra of an array of vertical zinc oxide microrods prepared by the carbothermal synthesis on a Si(001) substrate have been investigated. The length and diameter of the rods are 9 ± 0.5 μm...

    N. V. Lyanguzov, A. S. Anokhin, D. I. Levshov… in Physics of the Solid State (2014)

  7. No Access

    Article

    Structure and lattice dynamics of heterostructures based on bismuth ferrite and barium strontium titanate

    The surface morphology, lattice parameters, and Raman spectra have been investigated at the stages of successive formation of a three-layer heterostructure consisting of epitaxial layers Ba0.8Sr0.2TiO3 (BST) and ...

    G. Khabiri, A. S. Anokhin, O. A. Bunina, Yu. I. Golovko… in Physics of the Solid State (2013)

  8. No Access

    Article

    Optimization of carbothermic synthesis of zinc-oxide micro- and nanorod arrays and their morphometric parameters

    The influence of argon-buffer pressure and distance from the material source on morphometric parameters of arrays of vertically aligned ZnO nano- and microrods was studied. The rods were grown by the carbother...

    N. V. Lyanguzov, E. M. Kaydashev, I. N. Zakharchenko… in Technical Physics Letters (2013)

  9. No Access

    Article

    Electric-field-induced phase transition in the relaxor ceramics based on PMN-PT

    The mechanisms of formation of a plateau in dependences of the reversible permittivity on the external electric field strength in a ceramic sample of the yPZN-mPMN-nPNN — xPT (x = 0, 3; y = 0.0982; m = 0.4541; n ...

    M. V. Talanov, O. A. Bunina, M. A. Bunin, I. N. Zakharchenko… in Physics of the Solid State (2013)

  10. No Access

    Article

    A comparative study of the BaTiO3 film and the BaTiO3/(Ba0.7Sr0.3)TiO3 superlattice using X-ray diffraction and raman spectroscopy

    A comparative study of the BaTiO3 epitaxial film and the BaTiO3/(Ba0.7Sr0.3)TiO3 superlattice prepared by pulsed laser deposition on MgO(100) substrates has been performed. The complete parallel orientation of th...

    O. A. Maslova, I. N. Zakharchenko, O. A. Bunina… in Physics of the Solid State (2012)

  11. No Access

    Article

    X-ray diffraction investigation of BaTiO3/(Ba,Sr)TiO3 superlattices

    Samples of BaTiO3/(Ba1 − x Sr x )TiO3 (BT/BST-x) superlattices have been studied using X-ray diffraction analysis. A complete parallel orientation of all the stud...

    O. A. Maslova, I. N. Zakharchenko, O. A. Bunina… in Physics of the Solid State (2012)

  12. No Access

    Article

    Use of various growth catalysts for laser sputtering of ZnO micro- and nanorods

    Pulsed laser deposition and various catalysts are used to fabricate ZnO micro- and nanorods at temperatures close to the optimum temperature for each catalyst. A comparative analysis of the optical and structu...

    N. V. Lyanguzov, V. E. Kaydashev, I. N. Zakharchenko, Yu. A. Kuprina… in Technical Physics (2012)

  13. No Access

    Article

    Structure, dielectric, magnetoelectric, and dissipative properties of AFe2/3W1/3O3 (A = Ba, Sr, Pb) ceramics in wide frequency and temperature ranges

    High-density impurity-free AFe2/3W1/3O3 (A = Ba(BWF), Sr(SWF), Pb(PWF)) ceramics with well-developed microstructures were synthesized. Their structures and dielectric properties were investigated over wide temper...

    Yu. M. Gufan, A. V. Pavlenko… in Bulletin of the Russian Academy of Science… (2010)

  14. No Access

    Article

    Dielectric, magnetoelectric, structure, and dissipative properties and the Mössbauer effect in PbFe1/2Nb1/2O3 ceramics in wide frequency and temperature ranges

    High-quality fine-grained ceramic samples of classical multiferroics PbFe1/2Nb1/2O3 (PFN) were synthesized. Their dielectric, magnetoelectric, and magnetic characteristics, including the Mössbauer effect, were me...

    Yu. M. Gufan, A. V. Pavlenko… in Bulletin of the Russian Academy of Science… (2010)

  15. No Access

    Article

    Structure and lattice dynamics of heterostructures based on bismuth ferrite and barium strontium titanate on magnesium oxide substrates

    Bismuth ferrite films doped with neodymium on MgO single-crystal substrates with an epitaxial barium strontium titanate thin (1–2 nm) sublayer have been prepared by rf sputtering of ceramic targets at an eleva...

    Yu. I. Golovko, V. M. Mukhortov, O. A. Bunina… in Physics of the Solid State (2010)

  16. No Access

    Article

    Growth and study of single crystals of solid solutions of ferroelectric-relaxors (1 − x)PbMg1/3Nb2/3O3-(x)PbSc1/2Nb1/2O3 with different degrees of compositional order

    Single crystals of (1 − x)PbMg1/3Nb2/3O3-(x)PbSc1/2Nb1/2O3 (PMN-PSN) solid solutions are grown from flux. The X-ray diffraction patterns of the crystals with 0.1 ≤ x ≤ 0.65 show superstructural reflections associ...

    I. P. Raevskii, S. M. Emel’yanov, F. I. Savenko… in Crystallography Reports (2003)

  17. No Access

    Article

    Irreversible anomalies in the electrical properties of oxides with the tetragonal tungsten bronze structure

    The anomalies in the electrical properties of (Pb,Sr,Ba)4Li2Nb10O30 solid solutions were studied by measuring dielectric permittivity and electrical conductivity as functions of temperature and time (during isoth...

    I. A. Gurnikovskii, A. G. Bermus, L. M. Rudkovskaya, O. A. Bunina in Inorganic Materials (2000)