Zobrazeno 1 - 10
of 95
pro vyhledávání: '"V. N. Grigor'ev"'
Autor:
S. P. Rubets, I. A. Degtyarev, A. S. Rybalko, V. Yu. Rubanskii, V. N. Grigor’ev, V. A. Tikhii, E. Ya. Rudavskii, A. A. Lisunov, V. A. Maidanov
Publikováno v:
Low Temperature Physics. 35:829-836
The kinetics of phase separation in quantum crystals of concentrated He3–He4 mixtures containing 34.0, 61.3, and 89.9% He3 are investigated experimentally by the method of precision barometry. The variation of the pressure P(T) of the system upon s
Autor:
V. A. Maidanov, A. S. Rybalko, V. N. Grigor’ev, E. Rudavskii, V. Y. Rubanskii, S. P. Rubets, A. A. Lisunov, V. A. Tikhii
Publikováno v:
Journal of Low Temperature Physics. 158:578-583
A new series of experiments has been performed to find out the conditions for the formation of a glass phase in solid 4He in the region where an anomalous behavior attributed to the supersolid effect was observed previously. A special two-chamber cel
Autor:
V. Yu. Rubanskiĭ, É. Ya. Rudavskiĭ, V. A. Maĭdanov, V. A. Tikhiĭ, S. P. Rubets, A. S. Rybalko, V. N. Grigor’ev
Publikováno v:
Low Temperature Physics. 34:344-350
High-precision barometry is used to perform measurements of the temperature dependence of the pressure of helium crystals, located in a constant volume, in the temperature range 50–800mK on crystals of different quality ranging from freshly prepare
Publikováno v:
Journal of Low Temperature Physics. 150:47-56
Precise pressure experiments in supercooled bcc 4He are carried out under cooling along an isochore near an equilibrium line of the bcc-hcp structural phase transition. It is established that the transition from bcc to hcp occurs after significant de
Publikováno v:
Low Temperature Physics. 33:814-817
A discussion of the nucleation kinetics in the phase separation of a solution of He4 in He3 under conditions of coexistence of the liquid and solid phases, when solid inclusions of a new phase enriched in He4 form in the liquid matrix, is presented.
Autor:
Ye. V. Syrnikov, V. N. Grigor’ev, N. P. Mikhin, Ye. O. Vekhov, V. A. Maidanov, A. S. Rybalko, V. A. Tikhiy, V. Yu. Rubanskiy, S. P. Rubets, E. Ya. Rudavskii
Publikováno v:
Low Temperature Physics. 33:635-641
Precision measurements of the temperature dependence of the pressure are made on high-quality crystals of He4 and He3–He4 solutions grown at a constant volume. The phonon and vacancion contributions to the pressure are separated on the basis of the
Autor:
V. N. Grigor’ev, Ye. O. Vekhov
Publikováno v:
Journal of Low Temperature Physics. 149:41-51
The most careful measurements on the specific heat C(T) and dP/dT (P is the pressure, T is the temperature) are analysed using a model where the thermodynamic properties of 3He and 4He crystals are described by a sum of phonon and vacancy contributio
Autor:
V. N. Grigor’ev, E. Rudavskii, K. A. Chishko, S. P. Rubets, A. S. Rybalko, Ye. V. Syrnikov, V. A. Maidanov, A. A. Penzev, T. N. Antsygina
Publikováno v:
Journal of Low Temperature Physics. 148:719-724
An anomalous temperature dependence of pressure in concentrated solid 3He-4He mixtures near the phase separation temperature T s is first found experimentally. Beginning with temperatures 50–70 mK above T s , as the temperature decreases and T s is
Publikováno v:
Journal of Low Temperature Physics. 148:713-718
We present the solution of the one-dimensional diffusion problem that describes the decay kinetics of solid 3He–4He mixtures taking into account the diffusion processes in both phases of the stratified solution and the surface resistance of the int
Autor:
S. P. Rubets, E. Ya. Rudavskii, T. N. Antsygina, A. S. Rybalko, V. N. Grigor’ev, A. A. Penzev, E. V. Syrnikov, K. A. Chishko, V. A. Maidanov
Publikováno v:
Low Temperature Physics. 31:1059-1066
A precision barometric study has revealed unusual behavior of the pressure of 3He−4He solid solutions with a concentration of around 30% 3He: in the pre-separation region the pressure increases with decreasing temperature long before the start of t