Zobrazeno 1 - 10
of 19
pro vyhledávání: '"B. B. Lavrenčič"'
Autor:
B. B. Lavrenčič, Alenka Kandušer
Publikováno v:
Ferroelectrics. 201:211-215
By means of reactive RF sputtering we have obtained the stoichiometric LiTaO3 thin films with different degrees of c-axis orientation of grains. The influence of electric field on the degree of orientation has been investigated. Pyroelectricity of fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::847c971ac2bc16a74f3ebb3efd46df6b
https://doi.org/10.1080/00150199708228370
https://doi.org/10.1080/00150199708228370
Publikováno v:
Integrated Ferroelectrics. 4:13-19
LiTaO3 thin film from have been obtained by RF-magnetron sputtering from monocrystalline target. The films have been deposited on (111) silicon and platinum without substrate heating. The amorphous films were subsequently annealed in the electric fie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d03b0489c5e660cf85e591ea94e4a3f
https://doi.org/10.1080/10584589408018655
https://doi.org/10.1080/10584589408018655
Publikováno v:
Ferroelectrics. 134:223-228
Ferroelectric LiTaO3 thin films were grown using an RF sputtering method from a monocrystalline target on heated substrates of LiTaO3, silicon and sapphire. The structure and composition of obtained films were checked by means of XRD, AES and RBS spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfb23097222e983c5b1e221695ae6eca
https://doi.org/10.1080/00150199208015592
https://doi.org/10.1080/00150199208015592
Autor:
B. B. Lavrenčič
Publikováno v:
Ferroelectrics. 53:265-268
The phase transitions in Sr2Nb2O7 can be qualitatively understood if we assume three independent order parameters Pc, Pb and η (modulation wave amplitude), interacting through biquadratic terms.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8115003bc2b7f944147783269fd43d5
https://doi.org/10.1080/00150198408245063
https://doi.org/10.1080/00150198408245063
Publikováno v:
physica status solidi (b). 122:399-404
A microscopic model for the ferroelastic transition in KLiSO4 at Tc = 190 K is proposed. The model is based on the ordering of the “top” SO4 oxygen into one of the three off-centre sites below Tc. It yields a transition of first order and agrees
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7080ade88637917d284e2e4a20c7545c
https://doi.org/10.1002/pssb.2221220202
https://doi.org/10.1002/pssb.2221220202
Autor:
Sergey V. Rodin, B. B. Lavrenčič
Publikováno v:
Ferroelectrics. 88:37-43
The Raman scattering in para- and ferroelectric phases of diglycine nitrate show no features connected with the transition. The critical mode is probably a very low frequency external mode associated with the motion of massive glycine groups carrying
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13f952a4767ac33dbe8b6ce98b9c2452
https://doi.org/10.1080/00150198808245150
https://doi.org/10.1080/00150198808245150
Publikováno v:
Physical Review B. 23:3469-3474
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1c6df3dcec203b6addcd503eaae633d
https://doi.org/10.1103/physrevb.23.3469
https://doi.org/10.1103/physrevb.23.3469
Publikováno v:
Solid State Communications. 53:481-484
The Brillouin scattering spectra of KH 2 PO 4 under an applied uniaxial stress have been studied in the neighborhood of the ferroelectric transition. Dependence of shear acoustic phonon on the uniaxial stress is similar to dependence on electric fiel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31be17ff83b8ab4e8519022e5b7c9f62
https://doi.org/10.1016/0038-1098(85)91062-2
https://doi.org/10.1016/0038-1098(85)91062-2
Autor:
B. B. Lavrenčič, Robert Blinc
Publikováno v:
Physica Status Solidi (b). 49:K119-K124
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdd93f1f380e641f00f1789ba9df4bb2
https://doi.org/10.1002/pssb.2220490251
https://doi.org/10.1002/pssb.2220490251
Publikováno v:
Ferroelectrics. 14:637-639
We have measured the Brillouin spectra of NaH3(SeO3)2 in the α, β and 7 phase. According to dielectric and nmr data we suggest that the αβ transition is an improper ferroelectric one, the soft mode being at the Z (001/2) point of the Brillouin zo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb6dbe08bcbb7e0fe17db39f2f9c72b0
https://doi.org/10.1080/00150197608236688
https://doi.org/10.1080/00150197608236688