Zobrazeno 1 - 10
of 22
pro vyhledávání: '"A. M. Gapochka"'
Autor:
Ya. S. Glazkova, I. A. Presnyakov, V. S. Rusakov, A. N. Vasil’ev, A. V. Sobolev, Olga S. Volkova, A. M. Gapochka, T. V. Gubaidulina
Publikováno v:
Journal of Experimental and Theoretical Physics. 132:426-437
Magnetic and Mossbauer measurements are performed on the nuclei of 57Fe probe atoms in the structure of the substituted CaCuxMn6.96 – x57Fe0.04O12 (0 ≤ x ≤ 1) manganites in the magnetic-ordering temperature range T ≤ TN,C. The experimental re
Autor:
A. S. Sigov, Alexander P. Pyatakov, Vyacheslav S. Rusakov, V. S. Pokatilov, A. M. Gapochka, M. E. Matsnev
Publikováno v:
Ferroelectrics. 569:286-294
A detailed study of the temperature-dependent evolution of the hyperfine interaction parameters and spatial spin-modulated structure in multiferroic BiFeO3 has been carried out by 57Fe Mossbauer sp...
Autor:
V. S. Rusakov, A. V. Sobolev, Igor A. Presniakov, T. V. Gubaidulina, M. E. Matsnev, I. S. Glazkova, A. M. Gapochka
Publikováno v:
Journal of Experimental and Theoretical Physics. 129:1017-1028
We present the results of our 57Fe probe Mossbauer study in manganites CaCuxMn6.96–x57Fe0.04O12 (0 ≤ x ≤ 1). We have established that for compositions 0 ≤ x ≤ 0.15 near the structural R$$\bar {3}$$ ↔ Im$$\bar {3}$$ transition (at T ≈ TC
Autor:
M. E. Matsnev, A. V. Sobolev, I. S. Glazkova, A. M. Gapochka, A. A. Belik, Igor A. Presniakov, T. V. Gubaidulina, V. S. Rusakov
Publikováno v:
Physical Review B. 101
Autor:
A. M. Gapochka, Ya. S. Glazkova, I. A. Presnyakov, A. V. Sobolev, V. S. Rusakov, Denis A. Pankratov, M. E. Matsnev
Publikováno v:
Journal of Experimental and Theoretical Physics. 124:943-956
Mossbauer spectroscopy is used to study the FeVO4 multiferroic, which undergoes two magnetic phase transitions at T N1 ≈ 22 K and T N2 ≈ 15 K. The first transition (T N1) is related to transformation from a paramagnetic state into a magnetically
Autor:
A. E. Komarov, T. Yu. Kiseleva, A. O. Makarova, V. S. Pokatilov, M. E. Matsnev, M. S. Shatokhin, A. M. Gapochka, A. S. Sigov, V. S. Rusakov
Publikováno v:
Physics of the Solid State. 58:102-107
The results of the Mossbauer studies on 57Fe nuclei in multiferroics BiFe1–x T x O3 (T = Sc, Mn; x = 0, 0.05) in the temperature range of 5.2–300 K have been presented. The Mossbauer spectra have been analyzed in terms of the model of an incommen
Autor:
A. M. Gapochka, A. E. Komarov, Alexander Sigov, M. S. Shatohin, A. O. Makarova, V. S. Pokatilov, T. Yu. Kiseleva, V. S. Rusakov, M. E. Matsnev
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 79:976-979
The effect replacing Fe atoms with Sc atoms has on the spatial spin-modulated structure and electrical and magnetic hyperfine interactions of 57Fe nuclei in BiFeO3 multiferroic is studied by means of Mossbauer spectroscopy. The temperature dependence
Autor:
Igor A. Presniakov, A. M. Gapochka, Vyacheslav S. Rusakov, M. E. Matsnev, Yu. O. Lekina, Alexey V. Sobolev
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 79:971-975
Hyperfine interactions of 57Fe nuclei in multiferroic CuCrO2 are studied by means of Mossbauer probe spectroscopy in a wide range of temperatures, including that of the magnetic phase transition. The temperature dependences of the parameters of elect
Publikováno v:
JETP Letters. 98:544-550
The results of the Mossbauer study of ferrite AgFeO2 manifesting multiferroic properties (at T ≤ TN2) have been presented. The hyperfine interaction parameters of 57Fe nuclei have been analyzed in a wide temperature range including the points of tw
Autor:
A. M. Gapochka, Alexei A. Belik, M. E. Matsnev, Igor A. Presniakov, Alexey V. Sobolev, Vyacheslav S. Rusakov
Publikováno v:
Hyperfine Interactions. 226:41-50
The present work reports results of the 57Fe Mossbauer measurements on AgFeO2 powder sample recorded at various temperatures including the points of both magnetic phase transitions. The 57Fe Mossbauer spectra of AgFeO2 measured in the paramagnetic ra