Zobrazeno 1 - 10
of 67
pro vyhledávání: '"F Smutny"'
Publikováno v:
Physics of the Solid State. 39:1825-1828
The dielectric permittivity and losses of the (SrTiO3)0.85(KTaO3)0.15 solid solution have revealed an unusual behavior at temperatures of 5–300 K and frequencies ranging from 100 Hz to 1 MHz. The dielectric permittivity exhibits a broad maximum at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1eb13c54dd84aa8305373c67ef048af
https://doi.org/10.1134/1.1130182
https://doi.org/10.1134/1.1130182
Publikováno v:
Ferroelectrics. 186:317-320
The temperature-frequency behaviour of ϵ′ (T, f) and tan[δ(T, f)] (13 – 300 K, 120 Hz - 8 MHz) of KTaO3:Li (0.1 wt%) single crystals before and after a weak reduction was studied. Below 70 K before reduction, the samples reveal a shoulder in ϵ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcf3645733c116e5e028f5fea04fcc9c
https://doi.org/10.1080/00150199608218092
https://doi.org/10.1080/00150199608218092
Autor:
Victor I. Torgashev, F Kadlec, F Smutny, Jan Petzelt, L. T. Latush, L A Burmistrova, Yu. I. Yuzyuk
Publikováno v:
Journal of Physics: Condensed Matter. 7:5681-5700
Polarized Raman and infrared spectra of Li2Ge7O15 single crystals were measured in the frequency range 5-1000 cm-1 at room temperature. The spectra are analysed within the framework of the Landau theory of structural phase transitions from a (hypothe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bbc07c1f3ade307b3d40e9d938bf6bb
https://doi.org/10.1088/0953-8984/7/28/021
https://doi.org/10.1088/0953-8984/7/28/021
Autor:
V. É. Bursian, L. S. Sochava, V. A. Trepakov, F. Smutny, V. Vikhnin, P. P. Syrnikov, L Jastrabik
Publikováno v:
Journal of Physics: Condensed Matter. 7:3765-3777
The temperature-frequency behaviour of the permittivity epsilon '(T, f) and tan( delta (T, f)) (20-300 K; 120 Hz-9 MHz), EPR, optical absorption and luminescence of KTaO3 nominally pure and weakly doped (0.1 wt% Li; 0.01 wt% Cr; 3 wt% Cu; 1 wt% Fe; 0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cca45d4093bd5c0355532217c0640da8
https://doi.org/10.1088/0953-8984/7/19/011
https://doi.org/10.1088/0953-8984/7/19/011
Autor:
Jan Petzelt, J Hrabovska-Bradshaw, K.-P. Bohn, M Kubat, F Smutny, J. F. Legrand, Jan-Kristian Krüger, Jürgen Schreiber, S. Kamba, R. Jiménez
Publikováno v:
Journal of Physics: Condensed Matter. 6:6947-6964
Frozen-in trans and gauche conformational disorder of symmetrical difluorotetra-chloroethane (DFTCE) produces the tendency of this plastic crystal to form an orientational glassy state on cooling below Tg=86 K. To throw light upon the freezing mechan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76e96239821af380668a00dfcb7d8e43
https://doi.org/10.1088/0953-8984/6/35/006
https://doi.org/10.1088/0953-8984/6/35/006
Publikováno v:
Journal of Physics: Condensed Matter. 5:5761-5772
Polarized Raman spectra of Cs2CdBr4 single crystals were measured in the frequency range 0-350 cm-1 at 100-290 K. The spectra are analysed within the framework of the Landau theory of structural phase transitions; the analysis indicates that the tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f126f30ef4c263dc820f81da0ec78575
https://doi.org/10.1088/0953-8984/5/32/007
https://doi.org/10.1088/0953-8984/5/32/007
Publikováno v:
Ferroelectrics. 140:299-304
Dielectric and optical investigations of (NH4)4LiH3(SO4)4 and (NH4)4LiH3(SeO4)4 single crystals showed that these crystals are new ferroelastic below 233 K and 267 K respectively. X-ray studies demonstrated that above mentioned crystals are isomorpho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2753b3eac608b6ad8ebb8d68a8ca3bcd
https://doi.org/10.1080/00150199308008300
https://doi.org/10.1080/00150199308008300
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Publikováno v:
Ferroelectrics Letters Section. 2:177-183
Experiments with (350samples have been carried out in which the domain structure was changed. by elastic stress and monitored. Simultaneously an electric signal has been measured on a system of ele...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a66f3c442a02929b379466e86d2b07b9
https://doi.org/10.1080/07315178408204295
https://doi.org/10.1080/07315178408204295
Autor:
J Holakovsky, F Smutny
Publikováno v:
Journal of Physics C: Solid State Physics. 11:L611-L615
It is suggested that there is a phase transition in nickel iodine boracite at approximately 120K, which is associated with no change of symmetry-an isomorphous transition. The cause of this transition is a condensation of OI atoms from a gas-like sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dfdd499ecff471aec5706c2626087f4
https://doi.org/10.1088/0022-3719/11/14/011
https://doi.org/10.1088/0022-3719/11/14/011