Abrupt processes of remagnetization reversal processes in single crystals of GdCo4Cu alloy

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Abstract

The results of the study of the features of the magnetization and remagnetization processes in single-crystal samples of the GdCo4Cu alloy are presented. Depending on the magnetic background, the coexistence of two hysteresis mechanisms is observed. Along with a significant magnetic viscosity, abrupt remagnetization is observed. The relationship of hysteresis processes with the structural state of samples is discussed.

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About the authors

Yu. V. Kuznetsova

Tver State University

Author for correspondence.
Email: kuznetsova.yv@tversu.ru
Russian Federation, Tver

O. B. Degteva

Tver State University

Email: kuznetsova.yv@tversu.ru
Russian Federation, Tver

A. Y. Karpenkov

Tver State University

Email: kuznetsova.yv@tversu.ru
Russian Federation, Tver

Е. М. Semenova

Tver State University

Email: kuznetsova.yv@tversu.ru
Russian Federation, Tver

M. A. Belyavsky

Tver State University

Email: kuznetsova.yv@tversu.ru
Russian Federation, Tver

E. B. Mitina

Tver State University

Email: kuznetsova.yv@tversu.ru
Russian Federation, Tver

References

  1. Coey J.M.D. // Engineering. 2020. V. 6. No. 2. P. 119.
  2. Бирюков В.С. Магнитные свойства квазибинарных соединений на основе редкоземельных металлов и кобальта. Автореф. дисс… канд. физ.-мат. наук. Калинин: Калининский гос. ун-т, 1982.
  3. Лилеев А.С. // Изв. РАН. Сер. физ. 2007. Т. 71. № 11. С. 1560; Lileev A.S. // Bull. Russ. Acad. Sci. Phys. 2007. V. 71. No 11. P. 1515.
  4. Никитина Ю.В., Гуслов М.Е., Дегтева О.Б. // В сб. науч. тр. «Физика магнитных материалов», Тверь: ТвГУ, 1999. С. 56.
  5. Crew D.C., McCormick P.G., Street R. // J. Magn. Magn. Mater. 1998. V. 177—181. P. 987.
  6. Thompson P.J., Street R. // J. Magn. Magn. Mater. 1997. V.171. P. 163.
  7. Grossinger R., Tellez-Blanco J.C., Sato Turtelli R. et al. // Phys. B. 2001. V. 294—295. P. 194.
  8. Кузнецова Ю.В., Супонев Н.П., Дегтева О.Б., Салев П.С. // Поверхность. Рентген. синхротр. и нейтрон. исслед. 2011. № 11. С. 1; Kuznetsova Y.V., Suponev N.P., Degteva O.B., Salev P.S // J. Surf. Invest.: X-Ray, Synchrotron Neutron Tech. 2011. No. 5. P. 1107.
  9. Дегтева О.Б., Супонев Н.П., Чирков П.А., Кузнецова Ю.В. // Вестн. ТвГУ. Сер. физ. 2004. № 4(6). С. 6.
  10. Penton-Madrigal A., de Oliveira L.A.S., Sinnecker J.P. et al. // Phys. B. 2013. V. 414. P. 67.
  11. Penton A., Estevez E., Lora R. et al. // J. Alloys Compounds. 2007. V. 429. P. 343.
  12. Кузнецова Ю.В. Магнитные релаксационные процессы в редкоземельных интерметаллидах R(Co, M)5 и R-Zr-Co-Cu-Fe Автореф. дис. … канд. физ.-мат. наук. Тверь: Тверской гос. ун-т, 2011.

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2. Fig. 1. Images of the microstructure on the base surface of a section of a single crystal of the GdCo4Cu alloy after annealing at 1100 °C for 5 hours, revealed by the SEM method, as well as the energy-dispersive analysis spectra corresponding to the highlighted areas.

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3. Fig. 2. Images of hysteresis loops for a single crystal of the GdCo4Cu alloy in the states after melting (a) and annealing (b), obtained using the vibration magnetometer method in the temperature range of 300–600 K.

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4. Fig. 3. Temperature dependences of the coercive force of GdCo4Cu alloy samples in the as-smelted and annealed state.

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5. Fig. 4. Time dependences of jumps in specific magnetization for GdCo4Cu single crystals in the as-melted (a) and annealed (b) state, obtained using a vibration magnetometer at room temperature.

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