Skip to main content

12 Result(s)

within P. S. Berdonosov Remove this filter

and

  1. No Access

    Article

    Chemical Pressure, Structural Instability, and IR-Active Phonons in a Series of Rare-Earth Analogues of Francisite Cu3RE(SeO3)2O2Cl

    ATR and transmission spectra of a series of rare-earth francisite-like phases Cu3RE(SeO3)2O2Cl (RE is a rare earth element, RE = Nd, Sm, Eu, Gd, Dy, Ho, Tm, Yb) were studied. The frequencies of the IR-active phon...

    N. N. Novikova, V. A. Yakovlev, E. S. Kuznetsova… in Optics and Spectroscopy (2023)

  2. No Access

    Article

    Crystal-Field Levels of Sm3+ Ion in Low-Dimensional Magnetic Cu3Sm(SeO3)2O2Cl

    The transmission spectra of a two-dimensional frustrated magnetic Cu3Sm(SeO3)2O2Cl were measured in the region of f–f -transitions of the Sm3+ ion in a wide temperature range (4–300 K). The energies of 40 crystal...

    S. A Klimin, E. S. Kuznetsova, P. S. Berdonosov in Optics and Spectroscopy (2023)

  3. Article

    Open Access

    Quasi-1D XY antiferromagnet Sr2Ni(SeO3)2Cl2 at Sakai-Takahashi phase diagram

    Uniform quasi-one-dimensional integer spin compounds are of interest as a potential realization of the Haldane conjecture of a gapped spin liquid. This phase, however, has to compete with magnetic anisotropy a...

    E. S. Kozlyakova, A. V. Moskin, P. S. Berdonosov, V. V. Gapontsev… in Scientific Reports (2021)

    Download PDF (1762 KB) View Article

  4. No Access

    Article

    Optical Spectroscopy of Kramers Doublets of an Er3+ Ion in a Two-Dimensional Frustrated Magnetic Cu3Er(SeO3)2O2Cl

    Francisites, Cu3M(YO3)2O2X (M = Bi or rare earth, Y = Se, Te, X = Br, Cl, or I), attract close attention from researchers because of their interesting magnetic properties, such as metamagnetic transitions in rela...

    S. A. Klimin, P. S. Berdonosov, E. S. Kuznetsova in Optics and Spectroscopy (2021)

  5. No Access

    Article

    Static and dynamic magnetic properties of two synthetic francisites Cu3La(SeO3)2O2X (X = Br and Cl)

    The formation of long-range magnetic order at low temperatures was established in francisite—type compounds Cu3La(SeO3)2O2X (X = Br and Cl) through measurements of magnetic susceptibility, magnetization, specific...

    M. M. Markina, K. V. Zakharov, E. A. Zvereva… in Physics and Chemistry of Minerals (2017)

  6. No Access

    Article

    Lead (II) selenite halides Pb3(SeO3)2 X 2 (X = Br, I): Synthesis and crystal structure

    Two lead selenite halides, Pb3(SeO3)2Br2 and Pb3(SeO3)2I2, have been prepared by solid-phase synthesis and structurally characterized. These compounds are isotypic and can be considered 3D with a microporous fram...

    P. S. Berdonosov, A. V. Olenev, V. A. Dolgikh in Crystallography Reports (2012)

  7. No Access

    Article

    Preparation of Pb2B5O9Br-based nonlinear optical glass-matrix composites

    Borate halide glasses have been prepared by quenching melts with the stoichiometric composition Pb2B5O9Br, an excess of B2O3, PbBr2, or Pb2B5O9Cl additions, and their glass transition and crystallization temperat...

    B. V. Egorova, V. A. Dolgikh, S. Yu. Stefanovich, P. S. Berdonosov… in Inorganic Materials (2011)

  8. No Access

    Article

    Strontium nickel and barium nickel selenites: Synthesis and X-ray diffraction parameters

    A new strontium nickel selenite, Sr2Ni(SeO3)3, was prepared and structurally characterized. The compound crystallizes in triclinic system (space group P

    P. S. Berdonosov, K. A. Batunin, A. V. Olenev… in Russian Journal of Inorganic Chemistry (2010)

  9. No Access

    Article

    Copper lanthanide selenite oxohalides with francisite structure: Synthesis and structural characteristics

    The reaction of lanthanide oxohalides with CuO and SeO2 gave the products Cu3Ln(SeO3)2O2X (Ln = lanthanide, X = Cl, Br). The oxochlorides are formed with all lanthanides, while oxobromides are formed only for Ln ...

    P. S. Berdonosov, V. A. Dolgikh in Russian Journal of Inorganic Chemistry (2008)

  10. No Access

    Article

    Second harmonic generation in boracites

    The M3B7O13X (M=Mg, Ni, Cd; X=Cl, Br, I) boracites were synthesized and characterized by x-ray diffraction and second harmonic generation. Their nonlinear optical susceptibility was estimated using the Phillips-V...

    M. B. Zagudailova, P. A. Plachinda, P. S. Berdonosov… in Inorganic Materials (2005)

  11. No Access

    Article

    Synthesis and powder X-ray diffraction analysis of new mixed rare-earth and selenium oxychlorides with composition LnSeO3Cl

    A series of new mixed rare-earth and selenium oxychlorides with composition LnSeO3Cl (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, or Y) were prepared by annealing together LnOCl and SeO2 in sealed silica tub...

    D. G. Shabalin, P. S. Berdonosov, V. A. Dolgikh, H. Oppermann… in Russian Chemical Bulletin (2003)

  12. No Access

    Article

    Crystal Structure and SHG Characterization of γ-BiSeO3Cl

    γ-BiSeO3Cl crystals were grown and characterized by x-ray microanalysis and second harmonic generation. The structure of γ-BiSeO3Cl was determined by single-crystal x-ray diffraction: sp. gr. Pna21, a = 11.707(4)...

    S. A. Ibragimov, P. S. Berdonosov, V. A. Dolgikh, D. Q. Huong… in Inorganic Materials (2002)