Zobrazeno 1 - 10
of 15
pro vyhledávání: '"V. D. Negrii"'
Publikováno v:
Ferroelectrics. 280:119-130
The dependences of the photo-induced voltage in the orthorhombic ferroelectric terbium molybdate g ' m Tb 2 (MoO 4 ) 3 upon the time t of the illumination by a laser beam was measured at room temperature at 0,1 s h t h 4500 s. The power of the laser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e90b11570ace21707f9a3459012fac02
https://doi.org/10.1080/00150190214805
https://doi.org/10.1080/00150190214805
Autor:
K. P. Meletov, V. D. Negrii
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 70:801-806
The influence of laser irradiation on the photoluminescence spectra of perfect C60 crystals in the orientationally disordered phase is investigated. It is shown that irradiation of the crystals with low-power light for short durations at T=200 K prod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8e2ea9f3023f2215b5ca386b0210688
https://doi.org/10.1134/1.568234
https://doi.org/10.1134/1.568234
Publikováno v:
Semiconductor Science and Technology. 14:921-927
We have grown bulk InxGa1-xN films and InxGa1-xN/GaN (x0.1) multiple quantum well structures on Al2O3 substrates by electron cyclotron resonance assisted molecular beam epitaxy. We have not found any signs of phase separation in bulk films with low i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0de8014cf94dcfcc9309092f5970070c
https://doi.org/10.1088/0268-1242/14/10/308
https://doi.org/10.1088/0268-1242/14/10/308
Autor:
V. D. Negrii, K. P. Meletov
Publikováno v:
physica status solidi (b). 211:217-221
We have measured the photoluminescence spectra of C60 single crystals at T ≈ 10 K and pressures up to 4.0 GPa. The spectrum at normal pressure consists of a number of peaks, previously related to emission of localized Frenkel excitons. The pressure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58f5f0709b6327b1cf806c18452679ec
https://doi.org/10.1002/(sici)1521-3951(199901)211:1<217::aid-pssb217>3.0.co
https://doi.org/10.1002/(sici)1521-3951(199901)211:1<217::aid-pssb217>3.0.co
Autor:
V. D. Negrii, K. P. Meletov
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 68:248-252
The luminescence spectra of C60 single crystals are studied at T≅10 K and pressure up to 4.0 GPa. It is observed that as the pressure increases, one fine-structure band in the spectrum intensifies sharply and dominates at pressures P≥1.7 GPa. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::099274b70b2be44fab742de2a5f39c82
https://doi.org/10.1134/1.567854
https://doi.org/10.1134/1.567854
Autor:
J. Zeman, V. D. Negrii, A. G. M. Jansen, Gerard Martinez, Redkin Boris S, A. K. Zvezdin, B. K. Ponomarev, P. Wyder
Publikováno v:
Ferroelectrics. 204:279-288
Optical absorption spectra were measured in polarized light in a metastable orthorhombic ferroelectric β′-phase of Tb2(MoO4)3 at 7 K. Measurements were made at four directions of the wave vector k along the crystal axes [100], [110], [010] and [00
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1e619d4cc081299bbdae4bc3d1d1ed1
https://doi.org/10.1080/00150199708222208
https://doi.org/10.1080/00150199708222208
Autor:
Yu. A. Ossipyan, A. P. Moravsky, A. N. Izotov, R. K. Nikolaev, E. G. Ponyatovsky, E. A. Steinman, I. O. Bashkin, V. D. Negrii
Publikováno v:
Chemical Physics Letters. 272:32-37
Photoluminescence (PL) spectra were measured on the C 60 polymeric phase prepared from a single crystal and from a microcrystalline powder treated at pressures to 15 kbar and temperatures to 600 K. It was found that the high-pressure treatment result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9af76407932c253d74ccee52b46c0cb
https://doi.org/10.1016/s0009-2614(97)00494-6
https://doi.org/10.1016/s0009-2614(97)00494-6
Autor:
M. P. Kulakov, V. D. Negrii
Publikováno v:
Advanced Materials for Optics and Electronics. 5:215-221
Splittings and shifts of excitonic states in ZnSe crystals under uniaxial stress along [100], [111] and [110] directions were studied by spatially resolved spectroscopy of both the reflectivity and the photoluminescence (PL) at 5 K. These methods ena
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0b23df46d043155a219dd8687687a95
https://doi.org/10.1002/amo.860050405
https://doi.org/10.1002/amo.860050405
Publikováno v:
Ferroelectrics. 161:43-48
We observed the spontaneous electric polarization reversal induced by the magnetic field of 100 kOe at 78 K in single crystal samples of orthorhombic β'-phases of Tb2(MoO4)3 and TbGd(MoO4)3. We explained this effect by magnetoelastic coupling betwee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08cfadc7913a78568d971e3c4a6f0795
https://doi.org/10.1080/00150199408213350
https://doi.org/10.1080/00150199408213350
Publikováno v:
Journal of Physics D: Applied Physics. 27:1995-2001
A giant magneto-electric effect was observed in single-crystal samples of metastable orthorhombic ferro-electric ferro-elastic paramagnetic beta ' phases of rare earth molybdates Tb2(MoO4)3 and TbGd(MoO4)3. The electric polarization in these compound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d86af851fa2cb39ac2a76974b68509af
https://doi.org/10.1088/0022-3727/27/10/001
https://doi.org/10.1088/0022-3727/27/10/001