Department of Magnetism

VALERIYA G. PIRYATINSKAYA

E-mail: piryatinskaya@ilt.kharkov.ua

Affiliation and address:
B.Verkin Institute for Low Temperature Physics & Engineering,
National Academy of Sciences of Ukraine,
47 Lenin Ave., 61103 Kharkov, Ukraine

Date of birth: 24.01.1966
Place of birth: Kharkov, Ukraine

Education:

  1. Kharkov State University. Diploma of Physics. 1988.
  2. B.Verkin Institute for Low Temperature Physics & Engineering, Kharkov.
    Candidate of Sciences (Physics & Mathematics). (Ph.D). 1994.


Career/Employers:
B.Verkin Institute for Low Temperature Physics and Engineering, Kharkov.
1988 - 1991 Postgraduate student
1991 - 1994 Engineer
1994 - 1999 Junior researcher
1999 - till now Researcher

Specialization:
main field: optical spectroscopy of magnetic dielectrics
current research interest: optical and magnetic excitations in low dimensional magnetic compounds; optical manifestation of magnetic and structural phase transitions; photoinduced phenomena in dielectrics.

Total number of publications: 30 papers and 29 communications.

Selected publications:
  1. V.V.Eremenko, V.V.Shapiro, I.S.Kachur, V.G.Piryatinskaya. Optical spectroscopy studies of orientational phase transitions in antiferromagnetic dielectrics. Phase Transitions 38, 33 (1992)
  2. A.V.Eremenko, I.S.Kachur, V.G.Piryatinskaya, V.V.Slavin. Effect of spin-wave spectral structure of antiferromagnetic crystals on thermal broadening of exciton absorption bands. Sov. J. Low Temp. Phys. 18, 258 (1992).
  3. V.V.Eremenko, V.V.Shapiro, I.S.Kachur, V.G.Piryatinskaya. Linear magnetic splitting of optical absorption bands in an easy-plane antiferromagnet. Sov. J. Low Temp. Phys. 18, 686 (1992).
  4. V.V.Eremenko, I.S.Kachur, V.G.Piryatinskaya, V.V.Shapiro. Noncollinear multisublattice magnetic structure of the quasi-two-dimensional antiferromagnet NH3(CH2)2NH3MnCl4. Low Temp. Phys. 19, 604 (1993).
  5. V.M.Dmitriev, V.V.Eremenko, V.G.Piryatinskaya, O.R.Prikhodko, E.V.Khristenko. Photoinduced phenomena in HTS films of YBa2Cu3O6+δ. Low Temp. Phys. 19, 968 (1993).
  6. V.V.Eremenko, I.S.Kachur, V.G.Piryatinskaya, V.V.Shapiro. Low temperature exciton-magnon light absorption in 2-d AFM NH3(CH2)2NH3MnCl4. Physica B 194-196, 191 (1994).
  7. V.V.Eremenko, S.L.Gnatchenko, I.S.Kachur, V.G.Piryatinskaya, A.M.Ratner, V.V.Shapiro. Photoproduction and relaxation of long-lived active charges in Ca3Mn2Ge3O12 garnet revealed through optical absorption. Phys. Rev. B 61, 10670 (2000).
  8. V.V.Eremenko, V.A.Karachevtsev, I.S.Kachur, N.Yu.Nedbailo, V.G. Piryatinskaya, V.V.Slavin, V.V.Shapiro. Absorption and luminescence of CsMnCl32H2O crystals doped with Cu2+. Journal of Luminescence 92, 35 (2001).
  9. V.V. Eremenko, S.L. Gnatchenko, I.S. Kachur, V.G. Piryatinskaya, M.B. Kosmyna, B.P. Nazarenko, and V.M. Puzikov. Photoinduced optical absorption in Ca3Ga2Ge3O12:Mn garnet. Appl. Phys. Lett. 79, 734 (2001).
  10. V.V. Eremenko, S.L. Gnatchenko, I.S. Kachur, V.G. Piryatinskaya, A.M. Ratner, M.B. Kosmyna, B.P. Nazarenko, and V.M. Puzikov. Anomalous manifestation of long-lived photoinduced dichroism in NaCa2Mn2V3O12 garnet. Phys. Rev. B 69, 233102 (2004).
  11. S.L. Gnatchenko, V.V. Eremenko, I.S. Kachur, V.G. Piryatinskaya, V.V.Slavin, V.V.Shapiro, M.B. Kosmyna, B.P. Nazarenko, and V.M. Puzikov. Photoinduced lowering of the valence of vanadium ions in the garnet NaCa2Mn2V3O12. Low Temp. Phys. 30, 980 (2004).
  12. J.B. Gruber, D.K. Sardar, R.M.Yow, U.V. Valiev, A.K. Mukhammadiev, V.Yu. Sokolov, I. Amin, K. Lengyel, I.S. Kachur, V.G. Piryatinskaya, B. Zandi. Analyses of the optical and magneto-optical spectra of Tb3Ga5O12. J. Appl. Phys. 101, 023108 (2007).
  13. A.V. Malakhovskii, I.S. Edelman, A.E. Sokolov, V.L. Temerov, S.L. Gnatchenko, I.S. Kachur, V.G. Piryatinskaya. Optical absorption spectrum and local symmetry of Tm3+ ion in TmAl3(BO3)4 crystal. Phys. Lett. A 371, 254 (2007).
  14. A.V. Malakhovskii, I.S. Edelman, A.E. Sokolov, V.L. Temerov, S.L. Gnatchenko, I.S. Kachur, V.G. Piryatinskaya. Low temperature absorption spectra of Tm3+ ion in TmAl3(BO3)4 crystal. J. Alloys Comp. 459, 87 (2008).