Балаев Дмитрий Александрович

Балаев Дмитрий Александрович

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Дата рождения: 22 августа 1971 г.

Адрес: Институт Физики им. Л.В. Киренского СО РАН, 660036, Красноярск, Россия

Телефон: + 7 (391) 243-26-35

Факс: +7 (391) 243-89-23

E-mail: dir@iph.krasn.ru
dabalaev@iph.krasn.ru

 

 

Образование:

Должности:

Область научных интересов:

  • Сверхпроводимость
  • Физика магнитных явлений
  • Магнитные наночастицы

Избранные публикации: Общее количество работ - более 100 .

  1. D.A. Balaev, A.A. Krasikov, A.A. Dubrovskiy, S.I. Popkov, S.V. Stolyar, O.A. Bayukov, .S. Iskhakov, V.P. Ladygina, R.N. Yaroslavtsev, Magnetic properties of heat treated bacterial ferrihydrite nanoparticles, Journal of Magnetism and Magnetic Materials, Vol. 410, p.171–180 (2016).
  2. A.A. Dubrovskiy, D.A. Balaev, K.A. Shaykhutdinov, O.A. Bayukov, O.N. Pletnev, S.S. Yakushkin, G.M. Bukhtiyarova, O.N. Martyanov, Size effects in the magnetic properties of ε-Fe2O3 nanoparticles, J. Appl. Phys. 118, 213901 (2015).
  3. D.A. Balaev, I.S. Poperechny, A.A. Krasikov, K.A. Shaikhutdinov, A.A. Dubrovskiy, S.I. Popkov, A.D. Balaev, S.S. Yakushkin, G.A. Bukhtiyarova, O.N. Martyanov, and Yu.L. Raikher, Dynamic magnetization of ε-Fe2O3 in pulse field: Evidence of surface effect, J. Appl. Phys. 117, 063908 (2015).
  4. Д.А. Балаев, А.А. Красиков, А.А. Дубровский, С.В. Семёнов, О.А. Баюков, С.В. Столяр, Р.С. Исхаков, В.П.Ладыгина, Л.А. Ищенко, Магнитные свойства и механизм формирования нескомпенсированного магнитного момента антиферромагнитных наночастиц ферригидрита бактериального происхождения, ЖЭТФ, Т. 146, вып.3(9), с.546-556 (2014).
  5. Д.А. Балаев, Д.М. Гохфельд, С.И. Попков, К.А. Шайхутдинов, Л.А. Клинкова, Л.Н. Жерихина, А.М. Цховребов, Увеличение ширины петли намагниченности в сверхпроводнике Ba0.6K0.4BiO3. Возможное проявление фазового расслоения, ЖЭТФ, Т. 145, вып.1, с. 120-127 (2014).
  6. V.L. Kirillov, D.A. Balaev, S.V. Semenov, K.A. Shaikhutdinov, O.N. Martyanov, Size control in the formation of magnetite nanoparticles in the presence of citrate ions, Materials Chemistry and Physics 145, 75 (2014).
  7. D.A. Balaev, S. V. Semenov, and M. I. Petrov, Correlation Between Magnetoresistance and Magnetization Hysteresis in a Granular High-TC Superconductor: Impact of Flux Compression in the Intergrain Medium, Journal of Superconductivity and Novel Magnetism, Vol. 27, p. 1425–1429 (2014).
  8. Balaev D.A., Dubrovskii A.A., Shaykhutdinov K.A., Bayukov O.A., Yakushkin S.S., Bukhtiyarova G.A. , and Martyanov O.N., Surface Effects and Magnetic Ordering in Few-Nanometer-Sized -Fe2O3 Particles, Journal of Applied Physics. Vol. 114, 163911-5 (2013).
  9. Балаев Д.А., Дубровский А.А., Красиков А.А., Столяр С.В., Исхаков Р.С., Ладыгина В.П., Хилажева Е.Д., Механизм формирования нескомпенсированного магнитного момента в наночастицах ферригидрита бактериального происхождения, Письма ЖЭТФ, Т. 98 (вып.3), с. 160-164 (2013).
  10. Balaev D.A., Popkov S.I., Sabitova E.I., Semenov S.V., Shaykhutdinov K.A., Shabanov A.V., Petrov M.I. Compression of a magnetic flux in the intergrain medium of a YBa2Cu3O7 granular superconductor from magnetic and magnetoresistive measurements // Journal of Applied Physics, Vol. 110, № 9. P. 093918 (2011).
  11. Yakushkin S.S., Dubrovskiy A.A., Balaev D.A., Shaykhutdinov K.A., Bukhtiyarova G.A., and Martyanov O.N., Magnetic properties of few nanometers -Fe2O3 nanoparticles supported on the silica, Journal of Applied Physics, Vol. 111 (4), 044312 (2012).
  12. Д.А. Балаев, А.А. Быков, С.В. Семенов, С.И. Попков, А.А. Дубровский, К.А. Шайхутдинов, М.И. Петров, Общие закономерности магниторезистивных эффектов в поликристаллических иттриевой и висмутовой ВТСП системах, ФТТ 53 (вып. 5), 865 (2011).
  13. Балаев Д.А., Дубровский А.А., Шайхутдинов К.А., Попков С.И., Гохфельд Д.М., Гохфельд Ю.С., Петров М.И. Механизм гистерезисного поведения магнитосопротивления гранулярных ВТСП. Универсальность ширины гистерезиса магнитосопротивления // ЖЭТФ. – 2009. – Т. 135 – С. 271-279.
  14. Балаев Д.А., Гохфельд Д.М., Дубровский А.А., Попков С.И., Шайхутдинов К.А., Петров М.И., Гистерезис магнитосопротивления гранулярных ВТСП как проявление магнитного потока, захваченного сверхпроводящими гранулами, на примере композитов YBCO + CuO, Журнал Экспериментальной и Теоретической Физики, 2007,Т. 132, выпуск 6 С. (1340-1351).
  15. D.A. Balaev, K.A. Shaihutdinov, S.I. Popkov, D.M. Gokhfeld, Petrov M.I. // Magnetoresistive effect of bulk composites 1-2-3 YBCO +CuO and 1-2-3 YBCO+BaPb1-xSnxO3 and their application as magnetic field sensors at 77K // Superconductor Science and Technology. 17 (2004) 175 – 181.
  16. Петраковский Г.А., Рябинкина Л.И., Абрамова Г.М, Балаев А.Д., Балаев Д.А., Бовина А.Ф., Явление колоссального магнитосопротивления в сульфидах MexMn1-xS (Me = Fe, Cr), Письма в ЖЭТФ, Т. 72 (вып.2), с.99-102. (2000).
  17. М.И. Петров, Д.А. Балаев, К.А. Шайхутдинов, К.С. Александров, Влияние транспортного тока и тепловых флуктуаций на резистивные свойства композитов ВТСП + CuO, ФТТ, Т. 41, вып.6, С. 969-974, (1999).
  18. M.I. Petrov, D.A. Balaev, D.M. Gohfeld, S.V. Ospishchev, K.A. Shaihudtinov, K.S. Aleksandrov, Applicability of the theory based on Andreev reflection to the description of experimental current-voltage characteristics of polycrystalline HTSC + normal metal composites, Physica C, Vol. 314 (N1,2), p. 51-54, (1999).
  19. M.I. Petrov, D.A. Balaev, S.V. Ospishchev, K.A. Shaihudtinov, K.S. Aleksandrov. Critical currents in bulk Y3/4Lu1/4Ba2Cu3O7 + BaPbO3 composites. // Phys. Lett. A, 1997, Vol. 237, P.85-89.

Новые публикации

Anisotropy of the Magnetoresistive Properties of Granular High-Temperature Superconductors Resulting from Magnetic Flux Compression in the Intergrain Medium

Semenov, S. V.; Balaev, D. A.; Pochekutov, M. A.; Velikanov, D. A. PHYSICS OF THE SOLID STATE, 59 (7):1291-1297; Doi; 10.1134/S1063783417070241 JUL 2017

To elucidate the origin of the well-known anisotropy of the magnetoresistive properties of granular high-temperature superconductors (HTSs), which is related to the mutual orientation of magnetic field H and transport current j, we investigate the hysteretic dependences of magnetoresistance R(H) of the yttrium HTS sample at the perpendicular (H ⊥ j) and parallel (H || j) configurations. The hysteretic R(H) dependences are analyzed using the concept of the effective field in the intergrain boundaries through which superconducting current carriers tunnel. The effective degree of magnetic flux compression in the intergrain medium at the perpendicular configuration was found to be twice as much as at the parallel one. This approach explains well the anisotropy of the magnetoresistive properties of granular HTSs, which was previously reported by many authors, and the temperature dependences of the resistance in the resistive transition region.

Exchange bias in nano-ferrihydrite

Balaev D. A., Krasikov A. A., Dubrovskiy A. A., Popkov S. I., Stolyar S. V., Iskhakov R. S., Ladygina V. P., Yaroslavtsev R. N. Journal of Applied Physics 120, 183903 (2016); doi: 10.1063/1.4967912

We report the results of investigations of the effect of cooling in an external magnetic field starting from the temperature over superparamagnetic blocking temperature TB on the shift of magnetic hysteresis loops in systems of ferrihydrite nanoparticles from ∼2.5 to ∼5 nm in size with different TB values. In virtue of high anisotropy fields of ferrihydrite nanoparticles and open hysteresis loops in the range of experimentally attainable magnetic fields, the shape of hysteresis loops of such objects in the field-cooling mode is influenced by the minor hysteresis loop effect. A technique is proposed for distinguishing the exchange bias effect among the effects related to the minor hysteresis loops caused by high anisotropy fields of ferrihydrite particles. The exchange bias in ferrihydrite is stably observed for particles not less than 3 nm in size or with TB over 40 K, and its characteristic value increases with the particle size.

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Magnetic properties of heat Treated bacterial ferrihydrite nanoparticles

Balaev D. A., Krasikov A. A., Dubrovskiy A. A., Popkov S. I., Stolyar S. V., Bayukov O. A., Iskhakov R. S., Ladygina V. P., Yaroslavtsev R. N. Journal of Magnetism and Magnetic Materials. February 2016. DOI: 10.1016/j.jmmm.2016.02.059

The magnetic properties of ferrihydrite nanoparticles, which are products of vital functions of Klebsiella oxitoca bacteria, have been studied. The initial powder containing the nanoparticles in an organic shell was subjected to low-temperature (T=160 °C) heat treatment for up to 240 h. The bacterial ferrihydrite particles exhibit a superparamagnetic behavior. Their characteristic blocking temperature increases from 26 to 80 K with the heat treatment. Analysis of the magnetization curves with regard to the magnetic moment distribution function and antiferromagnetic contribution shows that the low-temperature heat treatment enhances the average magnetic moment of a particle; i.e., the nanoparticles coarsen, probably due to their partial agglomeration during heat treatment. It was established that the blocking temperature nonlinearly depends on the particle volume. Therefore, a model was proposed that takes into account both the bulk and surface magnetic anisotropy. Using this model, the bulk and surface magnetic anisotropy constants KV≈1.7×105 erg/cm3 and KS≈0.055 erg/cm2 have been determined. The effect of the surface magnetic anisotropy of ferrihydrite nanoparticles on the observed magnetic hysteresis loops is discussed.

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