Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Vlasov, I. I."'
Publikováno v:
Phys. Rev. B 110, 144407 (2024)
A general method for calculating magnetic susceptibility ($\chi$) in dielectrics within a single choice of magnetic gauge for the whole crystal is presented. On the basis of the method, accounting for all contributions to the Van Vleck paramagnetism
Externí odkaz:
http://arxiv.org/abs/2410.15190
Autor:
Pasternak, D. G., Romshin, A. M., Bagramov, R. H., Galimov, A. I., Toropov, A. A., Kalashnikov, D. A., Leong, V., Satanin, A. M., Kudryavtsev, O. S., Chernev, A. L., Filonenko, V. P., Vlasov, I. I.
In fluorescence spectra of nanodiamonds (NDs) synthesized at high pressure from adamantane and other organic compounds, very narrow (~1 nm) lines of unknown origin are observed in a wide spectroscopic range from ~500 to 800 nm. Here, we propose and e
Externí odkaz:
http://arxiv.org/abs/2310.18822
A production of heat by mitochondria is critical for maintaining body temperature, regulating metabolic rate and preventing oxidative damage to mitochondria and cells. Up to now mitochondrion heat production was characterized only by methods based on
Externí odkaz:
http://arxiv.org/abs/2211.05449
Autor:
Kudryavtsev, O. S., Bagramov, R. H., Satanin, A. M., Lebedev, O. I., Pasternak, D. G., Filonenko, V. P., Vlasov, I. I.
The synthesis of ultrasmall (2-5 nm) nanodiamonds purely from adamantane at pressure of 12 GPa is reported. Their structural features have been studied by Raman spectroscopy. The unusual vibration band containing a number of pronounced maxima at abou
Externí odkaz:
http://arxiv.org/abs/2207.10874
Autor:
Kudryavtsev, O. S., Bagramov, R. H., Satanin, A. M., Shiryaev, A. A., Lebedev, O. I., Romshin, A. M., Pasternak, D. G., Nikolaev, A. V., Filonenko, V. P., Vlasov, I. I.
Two novel properties, unique for semiconductors: a negative electron affinity [1-2], and a high p-type surface electrical conductivity [3-4], were discovered in diamond at the end of the last century. Both properties appear when the diamond surface i
Externí odkaz:
http://arxiv.org/abs/2106.03230
Autor:
Khomich, A. A., Kudryavtsev, O. S., Dolenko, T. A., Shiryaev, A. A., Fisenko, A. V., Konov, V. I., Vlasov, I. I.
Publikováno v:
Laser Physics Letters 14(2): 025702 (2017)
Characteristic photoluminescence (PL) of nanodiamonds (ND) of very different origin (detonation, HPHT, extracted from meteorite) was studied in situ at high temperatures in the range 20-450C. Luminescence was excited using 473 nm laser and recorded i
Externí odkaz:
http://arxiv.org/abs/1702.01302
Photoluminescence spectra show that silicon impurity is present in lattice of some nanodiamond grains (ND) of various chondrites as a silicon-vacancy (SiV) defect. The relative intensity of the SiV band in the diamond-rich separates depends on chemic
Externí odkaz:
http://arxiv.org/abs/1502.08031
The results of spectroscopic and structural studies of phase composition and of defects in nanodiamonds from Efremovka (CV3) and Orgueil (CI) chondrites indicate that nitrogen atomic environment in meteoritic nanodiamonds (MND) is similar to that obs
Externí odkaz:
http://arxiv.org/abs/1102.0880
Autor:
Romshin, A. M., Osypov, A. A., Krohaleva, V. K., Zhuravlev, S. G., Egorova, O. N., Vlasov, I. I., Popova, I. Yu.
Publikováno v:
Biophysics; Apr2024, Vol. 69 Issue 2, p306-313, 8p
Isotopic substitution of boron and carbon is applied for the identification of the vibrational modes of heavily boron-doped diamond synthesized by high-pressure high-temperature technique. None of the bands in the Raman spectra are shifting upon ^{10
Externí odkaz:
http://arxiv.org/abs/0801.1611