N. E. Sluchanko
Russian Academy of Sciences
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Jetp Letters | 2014
S. V. Demishev; A. N. Samarin; V. V. Glushkov; M. I. Gilmanov; I. I. Lobanova; N. A. Samarin; A. V. Semeno; N. E. Sluchanko; N. M. Chubova; V. A. Dyadkin; S. V. Grigoriev
We report results of the high frequency (60 GHz) electron spin resonance (ESR) study of the quantum critical metallic system Mn1 − xFexSi. The ESR is observed for the first time in the concentration range 0 < x < 0.24 at temperatures up to 50 K. The application of the original experimental technique allowed carrying out line shape analysis and finding full set of spectroscopic parameters, including oscillating magnetization, line width and g factor. The strongest effect of iron doping consists in influence on the ESR line width and spin relaxation is marked by both violation of the classical Korringa-type relaxation and scaling behavior. Additionally, the non-Fermi-liquid effects in the temperature dependence of the ESR line width, which may be quantitatively described in the theory of Wölfle and Abrahams, are observed at quantum critical points x* ∼ 0.11 and xc ∼ 0.24.
Journal of Non-crystalline Solids | 1987
Sergei V. Demishev; Yu.V. Kosichkin; A. G. Lyapin; N. E. Sluchanko; M.M. Aleksandrova; V. I. Larchev; S. V. Popova; G. G. Skrotskaya
Abstract Electrophysical properties of the bulk amorphous A 3 B 5 semiconductor a-GaSb are studied for the first time. It is shown that in amorphous-crystalline gallium antimonide system a metal-insulator transition can be induced as the content of the amorphous phase increases gradually. Analysis of the relaxation of electrical conductivity demonstrated the complex nature of amorphous phase in GaSb which can be subdivided into some units.
Journal of Physics: Condensed Matter | 1993
V. V. Brazhkin; V. V. Glushkov; Sergei V. Demishev; Yu V Kosichkin; N. E. Sluchanko; A. I. Shul'gin
The Al LII-III X-ray emission spectra, galvanomagnetic properties and superconductive-state parameters were investigated in supersaturated Al1-xSix: FCC solid solutions obtained by a high-pressure treatment (P<8.0 GPa). A drastic decrease in the charge carrier mobility and an anomalous behaviour of the hole concentration were found. The previous model which was used to describe the superconducting properties of Al-Si is reviewed, Anomalous galvanomagnetic properties and enhancement of the value of the superconducting temperature Tc are assumed to be connected with the local soft regions in the vicinity of the lattice instability.
Physics-Uspekhi | 1994
Sergei V. Demishev; Yu. V. Kosichkin; N. E. Sluchanko; A. G. Lyapin
Journal of Experimental and Theoretical Physics | 1993
Sergei V. Demishev; Yu. V. Kosichkin; A. G. Lyapin; N. N. Mel'nik; D. V. Nekhaev; N. E. Sluchanko; O. A. Turok
Journal of Experimental and Theoretical Physics | 1993
Sergei V. Demishev; Yu. V. Kosichkin; N. E. Sluchanko; M. S. Sharambeyan; A. G. Lyapin; D. Parsons
Physics of the Solid State | 1993
V. V. Brazhkin; V. V. Glushkov; Sergei V. Demishev; Yu. V. Kosichkin; N. E. Sluchanko; A. I. Shul'gin; A. Tybulewicz
Soviet physics, JETP | 1992
V. V. Brazhkin; Sergei V. Demishev; Yu. V. Kosichkin; A. G. Lyapin; N. E. Sluchanko; S. V. Frolov; M. S. Sharambeyan; S. Torstveit
Soviet physics, JETP | 1991
Sergei V. Demishev; Yu. V. Kosichkin; D. G. Lunts; A. G. Lyapin; N. E. Sluchanko; M. S. Sharambeyan; F. J. Crowne
Jetp Letters | 1988
Sergei V. Demishev; Yu V Kosichkin; A. G. Lyapin; N. E. Sluchanko
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