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Contact info: prof., hab.dr. Jonas Grigas |
prof., hab.dr. Jonas Grigas, corresp. member of Lithuanian Acad. of Sciences.
Jonas Grigas was born 10 April 1938 in village Kabeliai,
District Varena, Lithuania.
1961 Graduated from Faculty of Physics & Mathematics, Vilnius University (VU),
Vilnius, Lithuania;
1961-1963 Engineer in the Institute of Radiomeasurements, Vilnius;
1963-1972 Assistant Professor, Senjor Lectuerer, Department of Radiophysics, VU
Vilnius;
1968 Awarded Degree of PhD in Semiconductor and Dielectric Physics, VU.;
1972-1973 Visiting Researcher, Institute of Physics, Czech Academy of Sciences,
Praha;
1972-1982 Associate Professor, Department of Radiophysics, VU, Vilnius;
1980 Awarded Degree of Doctor of Sciences in Solid State Physics, Inst. of
Physics, Riga, Latvia;
1982 - Professor of Department of Radiophysics, VU, Vilnius;
1986 Awarded Lithuanian Science and Technology Prize; Seminars and research in
Wroclaw University;
1988 Seminars at Atomic Research Center, Bombay; Indian Inst.of Technology, Deli
& Kharagpur;
1989 Seminars at Shizuoka, Waseda, Hokkaido, Hiroshima, Iwaki Meisei
Universities, Japan; Deli Univ. and
Indian Inst. of Technology, Madras, India; 1988-1993 Chair of Dept. of
Radiophysics, VU, Vilnius;
1994 Research and seminars at ETH Zürich, and Metz University, France; Member
expert of Lith. Acad. of Sciences;
1995-1996 Research and seminars at Iowa State University, USA;
1996 Awarded Lith. National Science Prize; Reaearch at Inst. of Low Temper. and
Structure, Wroclaw, Poland;
2000 Research at Iowa State University, Ames, USA; corresp. Member of Lithuanian
Acad. of Sciences.
2001-2002 Research and seminars at Silesian University, Katowice, Poland.
Prof. J.Grigas has authored more than 170 journal papers and more than 100 presentations in International conferences on Ferroelectricity and Phase Transitions. He is author of 9 Inventions and 1 USA Patent. Member of Editorial Boards of Lithuanian Journal of Physics and Science and Life.
Field of scientific
studies :
Ferroelectricity; Phase Transitions; Microwave Dielectric and XPS Spectroscopy
of Ferroelectrics.
Some publications :
J.Grigas. Microwave Dielectric Spectroscopy of
Ferroelectrics and Related Materials
(Gordon & Breach Sc. Publ. Inc., Amsterdam) 1996. p. 336.
W.Fortin, G.E. Kugel, J. Grigas and A. Kania.
Manifestation of Nb dynamics in Raman, microwave, and infrared spectra of the
AgTaO3 - AgNbO3 mixed system.
J. Appl. Phys. 79(8), 4273,
1996.
R.Mizaras, M.Takashige, J.Banys, S.Kojima,
J.Grigas, S.Hamazaki and A.Brilingas.
Dielectric relaxation in BNNT single
crystals.
J. Phys. Soc. Japan 66, 2881,1997.
A.Audzijonis, J.Grigas, A.Kajokas,
S.Kvedaravicius and V.Paulikas.
Origin of ferroelectricity in SbSI.
Ferroelectrics 219, 673-681, 1998.
K.Lukaszewicz, J.Stepien-Damm, A.Pietraszko,
A.Kajokas and J.Grigas.
Crystal structure, thermal expansion, dielectric
permittivity and phase transitions of Bi2S3.
Polish J.
Chem. 73, 541, 1999.
J. Grigas.
Splitting of the soft mode in a double well potential of SbSI crystals.
Ferroelectrics 226, 51, 1999.
S.Kamba, V.Bovtun, J.Petzelt,
I.Rychetsky, R.Mizaras, A.Brilingas, J.Banys, J.Grigas and M.Kosec.
Dielectric dispersion of relaxor PLZT ceramics in the frequency range 20 Hz to
100 THz.
J. Phys. Condens. Matter 12, 497, 2000.
J.Grigas, A.Kajokas, A.Audzijonis
and L.Şigas.
Peculiarities and properties of SbSI electroceramics.
J.European Ceramic Society 21, 1337-1340, 2001.
A.Kajokas, A.Matulis, J.Banys, R.Mizaras,
A.Brilingas and J.Grigas.
Dielectric dispersion and distribution of the relaxation times of the relaxor
PLZT ceramics.
Ferroelectrics 257, 69-74, 2001.
Last updated: 19.03.2002
