Department of Magnetism

 

VLADIMIR P. GNEZDILOV

 

 

B. Verkin Institute for Low Temperature Physics and

Engineering of the National Academy of Science of Ukraine

47 Nauky Ave.

61103 Kharkiv, Ukraine

 

Telephone : +38 (057) 3410975 (office)

                       +38 (067)7021068 (mobile)

 

Fax : +38 (057) 3403370


E-MAIL : gnezdilov@ilt.kharkov.ua

 

 

PERSONAL DATA

 


 

Name:                        VLADIMIR PETROVICH GNRZDILOV

Date of birth :          06/02/1948

Place of birth :         Kharkiv, Ukraine

Residence :              UKRAINE

 

Languages :

Russian, Ukrainian,English

(spoken, read and written)

 

EDUCATION

 


 
Name of Institution Degrees
 
Field
     
Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv

D.Sc. (Physics & Mathematics). (2014)
 
Magnetism

 

Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv

Senior Researcher Diploma (1993)
 
Magnetism

 

Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv
Ph.D. (Physics & Mathematics) (1985)
Magnetism
Kharkiv Polytechnic Institute

 Physical & Technical Department

M.Sc. in Physics of metals  (1974)
Physics of metals

 

FIELD OF SCIENTIFIC INTEREST

 


  • Magnetism in low symmetry and low dimensional systems;
  • lattice dynamics and phase transitions;
  • structural and magnetic frustration; interplay of lattice, magnetic, charge and orbital degrees of freedom

PROFESSIONAL EXPERIENCE :

 


  • 2015-present : Leading Senior Research Fellow in the Department of Magnetism; B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine,  Kharkiv, Ukraine

  • 1990- 2015 : Senior Research Fellow in the Department of Magnetism; B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine,  Kharkiv, Ukraine

  • 1985- 1986 : Research Fellow in the Department of Magnetism; B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine,  Kharkiv, Ukraine

  • 1985-1986 : Junior Research Fellow in the Department of Magnetism; B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine,  Kharkiv, Ukraine

  • 1978-1985 : Senior Engineer in the Department of Magnetism; B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv, Ukraine

  • 1974-1978 : Engineer in the the Laboratory at Department of Magnetism; B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv, Ukraine

  • 1974-1978 : Engineer in the the Laboratory at Department of Magnetism; B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv, Ukraine

  • 1991-1992 : Visiting Scientist,  Institute for Microstructural Sciences, NRC, Canada, (part time)

  • 1998-2002 : Visiting Scientist,  Technical University Aachen, Germany, (part time)

  • 2003-2004 : Visiting Scientist,  MPI Stuttgart, Germany, (part time)

  • since 2005 : Visiting Scientist,  Technical University Braunschweig, Germany, since 2005, (part time)

 

AWARDS

 


  • 2018  - The Memorial Award in honor of 100th Anniversary of the National Academy of Sciences of Ukraine"
  • 2004 - State prize of Ukraine in field of science and technique for series of works "New optical and magneto-optical phenomena in antiferromagnets"

 

PUBLICATIONS

 


Number of papers : more than 200 ( in the refereed journals - 108).

 

Selected Publications for last 10 years:

  1. Flat-band spin dynamics and phonon anomalies of the saw-tooth spin-chain system Fe2O(SeO3)2
    V.P. Gnezdilov, Yu.G. Pashkevich, V.S. Kurnosov, O.V. Zhuravlev, D. Wulferding, P. Lemmens, D. Menzel, E.S. Kozlyakova, A.Yu. Akhrorov, E.S. Kuznetsova, P.S. Berdonosov, V.A. Dolgikh, O.S. Volkova, A.N. Vasiliev
    Phys. Rev. B, 99, 064413 (2019)
  2. Lattice and magnetic instabilities in Cu3Bi(SeO3)2O2X (X=Br,Cl)
    V. Gnezdilov, Yu. Pashkevich, P. Lemmens, V. Kurnosov, P. Berdonosov, V. Dolgikh, E. Kuznetsova, V. Pryadun, K. Zakharov, A. Vasiliev
    Physical Review B 96, 115144 (2017)
  3. Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi2V2O8
    V. Kurnosov, V. Gnezdilov, P. Lemmens, Yu. Pashkevich, A.K. Bera, A.T.M.N. Islam, B. Lake
    Low Temperature Physics 43, 1405 (2017)
  4. Optical phonon dynamics and electronic fluctuations in the Dirac semimetal Cd3As2
    A. Sharafeev, V. Gnezdilov, R. Sankar, F. C. Chou, and P. Lemmens
    Phys. Rev. B 95, 235148 (1-6) (2017)
  5. Electronic Structure and Magnetic Properties of FeTe, BiFeO3, SrFe12O19 and SrCoTiFe10O19 Compounds
    Lyogenkaya A.A., Grechnev G.E., Kotlyar O.V., Panfilov A.S., Gnezdilov V.P.
    ΣΤΖ, 2016, 61, c. 529-536
  6. Phase separation in iron chalcogenide superconductor Rb(0.8+x)Fe(1.6+y)Se2 as seen by Raman light scattering and band structure calculations
    Pashkevich Yu., Gnezdilov V., Lemmens P., Shevtsova T., Gusev A., Lamonova K., Wulferding D., Gnatchenko S., Pomjakushina E., and Conder K.
    Low Temperature Physics: 42, 491 (2016)
  7. Features of the electronic structure of FeTe compound
    G.E. Grechnev, A.A. Lyogenkaya, A.S. Panfilov, A.V. Logosha, O.V. Kotlyar, V.P. Gnezdilov, I.P. Makarova, D.A. Chareev, E.S. Mitrofanova
    Low Temperature Physics: 41, 990 (2015)
  8. Crystal Structure and Magnetic Properties of the S = 1/2 Quantum Spin System Cu7(TeO3)6F2 with Mixed Dimensionality
    Shichao Hu, Amber Mace, Mats Johnsson, Vladimir Gnezdilov, Peter Lemmens, Joshua Tapp, and Angela Möller
    Inorg. Chem., 2014, 2014, 53 (8), pp 4250–4256
  9. Enhanced quasiparticle dynamics of quantum well states: The giant Rashba system BiTeI, and topological insulators
    V. Gnezdilov, P. Lemmens, D. Wulferding, A. Müoller, P. Recher, H. Berger, R. Sankar, and F. C. Chou
    Phys. Rev. B, 2014, 89, pp. 195117 (1-6)
  10. Interplay between lattice and spin states degree of freedom in the FeSe superconductor: Dynamic spin state instabilities
    Vladimir Gnezdilov, Yurii G. Pashkevich, Peter Lemmens, Dirk Wulferding, Tatiana Shevtsova, Alexander Gusev, Dmitry Chareev, and Alexander Vasiliev
    Phys. Rev. B, 2013, 87, 144508 (1-8)
  11. Enhanced low-energy fluctuations and increasing out-of-plane coherence in vacancy-ordered NaxCoO2
    Lemmens P., Gnezdilov V., Shu G.J., Alff L., Lin C.T., Keimer B., and Chou F.C.
    Phys. Rev. B, 2013, 88, pp. 195151 (1-5)
  12. Thermal properties of layered cobaltites RBaCo2O5.5 (R = Y, Gd, and Tb)
    J. Wieckowski, M. U. Gutowska, A. Szewczyk, S. Lewinska, K. Conder, E. Pomjakushina, V. P. Gnezdilov and S. L. Gnatchenko
    Phys. Rev. B, 2012, 86 ,pp. 054404 (1-9)
  13. Spin state of iron - controlling parameter of iron containing HTSC: dependence of ground state energy, phonon energies and positions of atoms on spin state of iron ion in FeTe
    Yu.G. Pashkevich, T.N. Shevtsova, A.A. Gusev, V.P. Gnezdilov, and P. Lemmens
    Low Temperature Physics: 38, 900 (2012)
  14. Spin state of iron - controlling parameter of iron containing HTSC: dependence of ground state energy, phonon energies and positions of atoms on spin state of iron ion in FeTe
    Yu.G. Pashkevich, T.N. Shevtsova, A.A. Gusev, V.P. Gnezdilov, and P. Lemmens
    Low Temperature Physics: 38, 900 (2012)
  15. Analysis of the low-frequency spectrum of the cubic noncentrosymmetric ferrimagnet Cu2OSeO3
    V.S. Kurnosov, V.P. Gnezdilov, V.V. Tsapenko, P. Lemmens, and H. Berger
    Low Temperature Physics 38, 489 (2012)
  16. Low-dimensional magnetism of spin-½ chain systems α- and β-TeVO4: a comparative study
    V. Gnezdilov, P. Lemmens, D. Wulferding, Yu. Pashkevich, K. Lamonova, K.-Y. Choi, O. Afanasiev, S. Gnatchenko, and H. Berger
    Low Temperature Physics, Volume 38, Issue 7, pp. 559-569 (2012).)
  17. Dynamical lattice instability versus spin liquid state in a frustrated spin chain system
    V. Gnezdilov, P. Lemmens, Yu. G. Pashkevich, D. Wulferding, I. V. Morozov, O. S. Volkova, and A. Vasiliev
    Phys. Rev. B, 2012, 85,pp. 214403 (1-6)
  18. Crossover from coherent to incoherent scattering in spin-orbit dominated Sr2IrO4
    Mehmet Fatih Cetin, Peter Lemmens, Vladimir Gnezdilov, Dirk Wulferding, Dirk Menzel, Tomohiro Takayama, Kei Ohashi, and Hidenori Takagi
    Phys. Rev. B, 2012, 85, pp. 195148 (1-7)
  19. Coupling of spin and lattice modes in the S = 1/2 two-dimensional antiferromagnet K2V3O8 with magneto-dielectric couplings
    K.-Y. Choi, P. Lemmens, V. P. Gnezdilov, B. C. Sales, and M. D. Lumsden
    Phys. Rev. B, 2012, 85, pp. 114434 (1-6)
  20. Phononic and magnetic excitations in the quasi-one-dimensional Heisenberg antiferromagnet KCuF3
    V. Gnezdilov, J. Deisenhofer, P. Lemmens, D. Wulferding, O. Afanasiev, P. Ghigna, A. Loidl, and A. Yeremenko
    Low Temperature Physics 38, 419 (2012)
  21. Helical fluctuations in the Raman response of the topological insulator Bi2Se3
    V. Gnezdilov, Yu.G. Pashkevich, H. Berger, E. Pomjakushina, K. Conder, and P. Lemmens
    Phys. Rev. B, 2011, 84, pp. 195118 (1-5)
  22. Coupled spin-lattice fluctuations in a compound with orbital degrees of freedom: The Cr-based dimer system Sr3Cr2O8
    Dirk Wulferding, Peter Lemmens, Kwang-Yong Choi, Vladimir Gnezdilov, Yurii G. Pashkevich, Joachim Deisenhofer, Diana Quintero-Castro, A. T. M. Nazmul Islam, and Bella Lake
    Phys. Rev. B, 2011, 84, pp. 064419 (1-7)
  23. Phonon anomalies and possible local lattice distortions in giant magnetocapacitive CdCr2S4
    V. Gnezdilov, P. Lemmens, Yu. G. Pashkevich, Ch. Payen, K. Y. Choi, J. Hemberger, A. Loidl, and V. Tsurkan
    Phys. Rev. B, 2011, pp. 84, 045106 (1-6)
  24. Anomalous optical phonons in FeTe chalcogenides: Spin state, magnetic order, and lattice anharmonicity
    V. Gnezdilov, Yu. Pashkevich, P. Lemmens, A. Gusev, K. Lamonova, T. Shevtsova, I. Vitebskiy, O. Afanasiev, S. Gnatchenko, V. Tsurkan, J. Deisenhofer, and A. Loidl
    Phys. Rev. B, 2011, 83, pp. 245127 (1-6)
  25. Magnetoelectricity in the ferrimagnetic Cu2OSeO3: symmetry analysis and Raman scattering study
    V.P. Gnezdilov, K.V. Lamonova, Yu.G. Pashkevich, P. Lemmens, H. Berger, F. Bussy, and S.L. Gnatchenko
    Low Temperature Physics 36, 550 (2010)
  26. One-magnon inelastic light scattering in the canted antiferromagnet NiF2
    E. Meloche, M. G. Cottam, V. P. Gnezdilov, and D. J. Lockwod
    Phys. Rev. B, 2010, 81, pp. 024426 (1-15)
  27. Optical phonons, spin correlations, and spin-phonon coupling in the frustrated pyrochlore magnets CdCr2O4 and ZnCr2O4
    Ch. Kant, J. Deisenhofer, T. Rudolf, F. Mayr, F. Schrettle, A. Loidl, V. Gnezdilov, D. Wulferding, P. Lemmens, and V. Tsurkan
    Phys. Rev. B, 2009, 80, pp. 214417 (1-10)