Výsledky vyhledávání - "A. S. Telepnev"

The study of the vibrational spectra of NH4Cl and NH4Br at high pressures

Autor: V. A. Somenkov, V. P. Glazkov, D. P. Kozlenko, B. N. Savenko, G. F. Syrykh, A. S. Telepnev

Publikováno v: Journal of Experimental and Theoretical Physics. 94:1134-1139

The vibrational spectra of NH4Cl at pressures of up to 2.6 GPa and of NH4Br at pressures of up to 7 GPa are investigated by the method of inelastic incoherent scattering of neutrons. It is found that a linear baric dependence of a librational mode ch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c779cd2d66cba2dcb92cabe1fff6fa75
https://doi.org/10.1134/1.1493165

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Textures and physical properties of marbles deformed at 20 – 250°c

Autor: Kurt Walther, V. A. Sukhoparov, K. Ullemeyer, T. I. Ivankina, A. S. Telepnev, G. A. Sobolev, A. N. Nikitin

Publikováno v: High Pressure Research. 17:335-346

The experimental equipment at beam line 7A of the IBR-2 pulsed reactor at JINR, which includes a texture diffractometer and a high-pressure device, is used to characterize textural and structural changes of marbles in dependence upon directed stress,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9fcbb5e06ee79beac8bae17e3a86317
https://doi.org/10.1080/08957950008245922

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High-pressure gas chamber for neutron diffraction studies

Autor: G. N. Stepanov, V. G. Simkin, A. S. Telepnev

Publikováno v: Crystallography Reports. 52:558-560

The construction of a chamber designed for neutron diffraction studies of the structure of solids under high gas pressures up to 0.5 GPa is described. This chamber is a modification of the chamber published earlier in [2].

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::596ebfca693420bca746c1ac34210a9a
https://doi.org/10.1134/s1063774507030406

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Lattice dynamics of solid molecular hydrogen for densities 26.18 + 60.78 nm−3, as seen from total neutron interaction cross section measurements

Autor: A. A. Chernyshov, S. N. Isimaev, V. A. Sukhoparov, G. V. Kobelev, A. S. Telepnev, I. P. Sadikov, B. A. Vimiryaevskii

Publikováno v: High Pressure Research. 14:111-119

The total neutron interaction cross sections versus energy measurements have been carried out on solid parahydrogen for almost 100% change of its density. Some integral parameters of hydrogen very anharmonic phonon spectrum have been determined fro.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f27ab020a100ef206b9033e5b8dd870e
https://doi.org/10.1080/08957959508200909

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INS study of vibrational spectra of NH 4 I at very high pressures

Autor: V. A. Somenkov, A. S. Telepnev, B.N. Savenko, V. P. Glazkov, D.P. Kozlenko

Publikováno v: Applied Physics A: Materials Science & Processing. 74:s1305-s1307

Vibrational spectra of NH4I have been studied by means of incoherent inelastic neutron scattering at pressures up to 10 GPa using a high-pressure cell of the “toroid” type with tungsten carbide anvils. Librational (L) and transverse optical (TO)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a7aadb80fcc702b3b42344109e74bc9e
https://doi.org/10.1007/s003390101224

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Hybridization of libron and phonon modes in NH4I: Neutron spectroscopy studies at pressures up to 10 GPa

Autor: V. P. Glazkov, A. S. Telepnev, V. A. Somenkov, B. N. Savenko, D. P. Kozlenko

Publikováno v: Journal of Experimental and Theoretical Physics Letters. 74:415-417

Vibrational spectra of ammonium iodide NH4I were studied at pressures up to 10 GPa by incoherent inelastic neutron scattering. The pressure dependences of the frequencies of librational and transverse optical modes suggest that they are hybridized up

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::952945bfd47e829cf6a3127f47122ddb
https://doi.org/10.1134/1.1429997

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Neutron study of dynamics of solid hydrogen under pressure

Autor: A. S. Telepnev, S.N. Ishmaev, I. P. Sadikov, Y.L. Shitikov, A. A. Chernyshov, B. A. Vindryaevskii, G. V. Kobelev, V. A. Sukhoparov

Publikováno v: Physica B: Condensed Matter. :30-31

The phonon density of states g(e) of solid parahydrogen is determined from the inelastic incoherent neutron scattering and total cross-section versus energy measurements at pressures up to 1.06 GPa. The very anharmonic phonon spectra with long “tai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6df552c58b95acbe4ac0ffd74f52eb6
https://doi.org/10.1016/s0921-4526(96)00867-8

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The equation of state approximation of solid hydrogen in wide interval of densities

Autor: A. S. Telepnev

Publikováno v: High Pressure Research. 5:691-692

The coefficients of the second order Birch equation for static lattice of solid hydrogen are determined.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7d34aa97b8f3ffe8292c2c2597501846
https://doi.org/10.1080/08957959008246228

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Neutron diffraction studies of solid parahydrogen at pressures up to 5 kbar

Autor: V.A. Suhoparov, I.P. Sadikov, S.N. Ishmaev, B.A. Vindryavskyi, A. S. Telepnev, A.A. Chernyshov

Publikováno v: Physics Letters A. 76:355-358

The existence of a single phase crystalline hcp structure in solid para-H 2 has been established by neutron diffraction measurements in the temperature range 14–60 K and at pressures up to 5 kbr . The lattice parameter ratio c/a for para-H 2 is sho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::266d29ea04913746492407da67119c93
https://doi.org/10.1016/0375-9601(80)90518-6

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