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Перегляд Физика низких температур за назвою

Репозиторій DSpace/Manakin

Перегляд Физика низких температур за назвою

Сортувати за: Порядок: Результатів:

  • Ultrafast all-optical control of the magnetization in magnetic dielectrics 
    Kirilyuk, A.; Kimel, A.; Pisarev, R.V.; Hansteen, F.; Rasing, T. (Физика низких температур, 2006)
    The purpose of this review is to summarize the recent progress on laser-induced magnetization dynamics in magnetic dielectrics. Due to the slow phonon–magnon interaction in these materials, direct thermal effects of the ...
  • Ultra-high vacuum investigations of atomic layers at low temperatures 
    Grazhulis, V.A. (Физика низких температур, 1998)
  • Ultralow temperatures in a transport vessel: A dilution refrigerator to achieve 30 mK by continuous adsorption pumping 
    Batey, G.J.; White, J.P.; Duncan, W.D.; Simpson, A.F.; Mikheev, V.A. (Физика низких температур, 1997)
    A novel design of dilution refrigerator (DR) is described for continuous operation inside a transport dewar with a neck diameter more than 51 mm. The time required for cooling the mixing chamber from room temperature to ...
  • Ultrasound propagation in bond frustrated HgCr₂S₄ spinel in magnetic fields 
    Felea, V.; Prodan, L.; Stefanet, E.; Cong, P.T.; Zherlitsyn, S.; Tsurkan, V. (Физика низких температур, 2017)
    Ultrasound and magnetization studies of bond frustrated spinel HgCr₂S₄ are performed as a function of temperature in static magnetic fields. Beside the anharmonic effect, the sound velocity shows pronounced anomaly at the ...
  • Understanding the mechanism of DNA threshold elongation 
    Volkov, S.N. (Физика низких температур, 2018)
    The mechanism of threshold elongation of DNA macromolecule (overstretching) is studied within the frame-work of phenomenological approach, accounting both external (stretching) and internal (conformational) dis-placement ...
  • Universal properties of highly frustrated quantum magnets in strong magnetic fields 
    Derzhko, O.; Richter, J.; Honecker, A.; Schmidt, H.-J. (Физика низких температур, 2007)
    The purpose of the present paper is two-fold. On the one hand, we review some recent studies on the low-temperature strong-field thermodynamic properties of frustrated quantum spin antiferromagnets which admit the so-called ...
  • Unstable states of the superfluid confined between rotating spheres 
    Gongadze, A.; Kiknadze, L.; Mamaladze, Yu.; Tsakadze, S. (Физика низких температур, 2003)
    The unstable states (including those related to self-accelerations of pulsars) in which the mutual friction causes an irreversible motion of vortices is considered.
  • Unusual microwave response and bulk conductivity of very thin FeSe₀.₃Te₀.₇ films as a function of temperature 
    Barannik, A.A.; Cherpak, N.T.; Yun Wu; Sheng Luo; Yusheng He; Kharchenko, M.S.; Porch, A. (Физика низких температур, 2014)
    Results of X-band microwave surface impedance measurements of FeSe₁–xTex very thin film are reported. The effective surface resistance shows appearance of peak at T ≤ Tc when plotted as a function of temperature. The authors ...
  • Unusual morphology of equimolar Ar–Kr alloys 
    Danchuk, V.V.; Solodovnik, A.A.; Mysko, N.S.; Strzhemechny, M.A. (Физика низких температур, 2015)
    The transmission high electron energy diffraction (THEED) technique was employed for studying the structure of the equimolar Ar–Kr alloy, in which the thermodynamics predicts the maximum feasibility of phase separation. ...
  • Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox 
    Dimitrov, I.K.; Si, W.D.; Ku, W.; Han, S.J.; Jaroszynski, J. (Физика низких температур, 2013)
    We report an unusual persistence of superconductivity against high magnetic fields in the iron-chalcogenide film FeTe:Ox below ≈ 2.5 K. Instead of saturating like a mean-field behavior with a single order parameter, the ...
  • Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ 
    Tovstolytkin, A.I.; Pogorilyi, A.N.; Belous, O.Z.; Yanchevski, A.G. (Физика низких температур, 2001)
    The transport and magnetoresistive properties of bulk polycrystalline samples of the La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ (x ≤ 0.15) system are studied in the temperature range 77 K-300 K. All the samples investigated exhibit the ...
  • Unveiled optical properties of tetrapyrollic pigments in cryogenic environments 
    Crépin, C.; Shafizadeh, N.; Chin, W.; Galaup, J.-P.; McCaffrey, J.G.; Arabei, S.M. (Физика низких температур, 2010)
    An unexpected phenomenon was revealed in the laser induced fluorescence spectra of free-base (H₂Pc) and zinc (ZnPc) phthalocyanines trapped in rare gas and nitrogen matrices under a moderate increase in the laser intensity. ...
  • UV-VUV synchrotron radiation spectroscopy of NiWO₄ 
    Kuzmin, A.; Pankratov, V.; Kalinko, A.; Kotlov, A.; Shirmane, L.; Popov, A.I. (Физика низких температур, 2016)
    Photoluminescence and excitation spectra of microcrystalline and nanocrystalline nickel tungstate (NiWO₄) were measured using UV-VUV synchrotron radiation source. The origin of the bands is interpreted using comparative ...
  • Vacuum polarization in graphene with a topological defect 
    Sitenko, Yu.A.; Vlasii, N.D. (Физика низких температур, 2008)
    The influence of a topological defect in graphene on the ground state of electronic quasiparticle excitations is studied in the framework of the long-wavelength continuum model originating in the tightbinding approximation ...
  • Valence fluctuations in Sn(Pb)₂P₂S₆ ferroelectrics 
    Yevych, R.; Haborets, V.; Medulych, M.; Molnar, A.; Kohutych, A.; Dziaugys, A.; Banys, Ju.; Vysochanskii, Yu. (Физика низких температур, 2016)
    The valence fluctuations which are related to the charge disproportionation of phosphorous ions P⁴⁺+P⁴⁺→P³⁺+P⁺⁵ are the origin of ferroelectric and quantum paraelectric states in Sn(Pb)₂P₂S₆ semiconductors. They involve ...
  • Valentin Peschansky and puzzles of magnetotransport 
    Slobodeniuk, A.O.; Sharapov, S.G.; Loktev, V.M. (Физика низких температур, 2011)
    We study two-dimensional electronic gas (2DEG) in the background of the Aharonov–Bohm and constant magnetic fields. The problem of ambiguity of the solutions of the Schrödinger equation is investigated by introducing a ...
  • Valentin Peschansky and puzzles of magnetotransport 
    Pudalov, V.M. (Физика низких температур, 2011)
    Starting from the 1950s, the Kharkov school of theoretical physics was one of the world leaders in the theory of metals. In particular, the research by V.G. Peschansky for many years was focused on studying the relationship ...
  • Validity of t–J approximation for extended Hubbard model with strong repulsion 
    Cheranovskii, V.O.; Klein, D.J.; Ezerskaya, E.V.; Tokarev, V.V. (Физика низких температур, 2018)
    It is shown that for finite cyclic systems described by two band Hubbard Hamiltonian with strong electron repulsion the reduction to effective t–J model may give incorrect description of the ground state symmetry due to ...
  • Validity of t–J approximation for extended Hubbard model with strong repulsion 
    Cheranovskii, V.O.; Klein, D.J.; Ezerskaya, E.V.; Tokarev, V.V. (Физика низких температур, 2017)
    It is shown that for finite cyclic systems described by two band Hubbard Hamiltonian with strong electron repulsion the reduction to effective t–J model may give incorrect description of the ground state symmetry due to ...
  • Variable range hopping in thin film with large dielectric constant 
    Shklovskii, B.I. (Физика низких температур, 2017)
    In a film with large dielectric constant κ the electric field of an electron spreads inside the film before exiting the film at large distances of order of κ d ( d is the film width). This leads to the logarithmic Coulomb ...

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