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.Prikhod’ko, E.V.Khristenko. Photoinduced phenomena in HTS films of YBa₂Cu₃O_6+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 CsMnCl₃•2H₂O 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).