Zobrazeno 1 - 10
of 43
pro vyhledávání: '"S. W. Biernacki"'
Publikováno v:
Journal of Luminescence. 125:266-270
Application of the model of the nephelauxetic effect based on Harrison theory of bonding to various transition-metal dopants is reviewed. This one-parameter model describes pressure dependence of the nephelauxetic effect in various compounds with a v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fb8024c453a8588a1ebdd75df2fdeb7
https://doi.org/10.1016/j.jlumin.2006.08.039
https://doi.org/10.1016/j.jlumin.2006.08.039
Publikováno v:
Journal of Luminescence. :571-574
The model based on Harrison theory of bonding is used to explain quantitatively the nephelauxetic effect in LiNbO 3 and Y 3 Al 5 O 12 crystals doped with chromium, studied by high-hydrostatic pressure spectroscopy. The model uses only one adjustable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f23170b3022b797d5238c847fa235b4
https://doi.org/10.1016/s0022-2313(02)00620-8
https://doi.org/10.1016/s0022-2313(02)00620-8
Publikováno v:
Semiconductor Science and Technology. 14:521-527
In addition to the V3+ features earlier identified, photoluminescence (PL) excitation and sensitization spectra support the assignment of infrared PL bands to internal transitions of V+ and V2+ in vanadium-doped CdTe. The measured decay time constant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ab8ad8e94df215d59bc9e0f95f8d86f
https://doi.org/10.1088/0268-1242/14/6/306
https://doi.org/10.1088/0268-1242/14/6/306
Autor:
S. W. Biernacki
Publikováno v:
Physical Review B
The influence of isotope mass and anharmonicity on the lattice parameter of isotopically mixed diamond is studied in a simple theoretical model. The performed calculations confirm that in good approximation the lattice parameter changes linearly with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0bb778b4d03ed0e3467f52fed1712cf
https://doi.org/10.1103/physrevb.56.11472
https://doi.org/10.1103/physrevb.56.11472
Publikováno v:
Physical Review B. 56:4592-4596
We present a simple model to describe local vibrational modes at impurities in semiconductors using a two-particle anharmonic potential. We calculated the breathing-type distortion at the impurity in the tight-binding approximation, the frequencies o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bb96f9b1892b027cb8691f2aa5e58bb
https://doi.org/10.1103/physrevb.56.4592
https://doi.org/10.1103/physrevb.56.4592
Autor:
Hans-Joachim Schulz, S. W. Biernacki
Publikováno v:
physica status solidi (b). 200:173-180
The breathing-type distortion around transition-metal ions incorporated into semiconductors is determined in the approximation where the ligands are treated as point charges. It is shown how the crystal-field parameter can be found along with the val
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e71fa8b6d9e63831cb85c8642f2bf2a
https://doi.org/10.1002/1521-3951(199703)200:1<173::aid-pssb173>3.0.co
https://doi.org/10.1002/1521-3951(199703)200:1<173::aid-pssb173>3.0.co
Publikováno v:
Zeitschrift für Physikalische Chemie
The ground state of the lattice-neutral charge state of vanadium in tetrahedrally coordinated II—VI materials is a 4T1 term and is hence subject to a Jahn-Teller (JT) effect. In this paper photo-luminescence and EPR investigations on V2+ (3d3) in Z
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fca08b1c8e2e20e5e2efe1d0c577b667
https://doi.org/10.1524/zpch.1997.201.part_1_2.031
https://doi.org/10.1524/zpch.1997.201.part_1_2.031
Publikováno v:
Applied Physics Letters. 81:442-444
A model, based on the Harrison theory of bonding is developed for quantitative explanation of the nephelauxetic effect, i.e., a reduction of interelectronic crystal field Racah repulsion parameters B and C due to the covalency of bonds. The results a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f19c3859ffc23b0a8e24d77c09523dd8
https://doi.org/10.1063/1.1493225
https://doi.org/10.1063/1.1493225
Publikováno v:
Zeitschrift für Naturforschung A
The luminescence of synthetic ZnS: V crystals is studied at low temperatures (T % 4 K). The emission spectra comprise (i) a structured band centred around v = 5600 cm-1 , assigned to 3T2(F) ->• 3A2(F) transitions of substitutional V3+ (3d2) ions in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1f0926ba1c48bc8e15754e7a57dd157
https://doi.org/10.1515/zna-1990-0514
https://doi.org/10.1515/zna-1990-0514
Autor:
S. Kobyakov, Luisa E. Bausá, S. W. Biernacki, Georges Boulon, M. O. Ramirez, Agata Kaminska, Andrzej Suchocki
Publikováno v:
Physical Review B. 75
We show that the probability of $f\text{\ensuremath{-}}f$ radiative transitions $(^{2}F_{7∕2}\ensuremath{\leftrightarrow}^{2}F_{5∕2})$ of ${\mathrm{Yb}}^{3+}$ ions in gadolinium gallium garnet (GGG) crystals is sensitive to hydrostatic pressure a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::beedf3a28507f7dfb9fb9d243be4f63c
https://doi.org/10.1103/physrevb.75.174111
https://doi.org/10.1103/physrevb.75.174111