Magnetic properties lithium-doped manganite single crystals

Автор(и)

  • S. N. Barilo Institute of Solid State and Semiconductor Physics of National Academy of Science of Belarus 17 P. Brovki Str., Minsk 220072, Belarus
  • G. L. Bychkov Institute of Solid State and Semiconductor Physics of National Academy of Science of Belarus 17 P. Brovki Str., Minsk 220072, Belarus
  • V. I. Gatalskaya Institute of Solid State and Semiconductor Physics of National Academy of Science of Belarus 17 P. Brovki Str., Minsk 220072, Belarus
  • L. A. Kurochkin Institute of Solid State and Semiconductor Physics of National Academy of Science of Belarus 17 P. Brovki Str., Minsk 220072, Belarus
  • V. P. Sokol Institute of Solid State and Semiconductor Physics of National Academy of Science of Belarus 17 P. Brovki Str., Minsk 220072, Belarus
  • H. Szymczak Institute of Physics of Polish Academy of Science, 32/46 Al. Lotnikov Str., Warsaw 02-668, Poland
  • R. Szymczak Institute of Physics of Polish Academy of Science, 32/46 Al. Lotnikov Str., Warsaw 02-668, Poland
  • M. Baran Institute of Physics of Polish Academy of Science, 32/46 Al. Lotnikov Str., Warsaw 02-668, Poland

Ключові слова:

PACS: 75.30.Vn, 75.70.Lk, 75.60.Ej

Анотація

Magnetic and resistivity properties of La1-xLixMnO3 single crystals with the perovskite structure at lithium concentrations x=0.06 and 0.2 are investigated over a broad temperature range at fields of up to 50 kOe. The Curie temperature is TC=90 K (x=0.06) and 300 K (x=0.2), respectively. The electrical resistance of the single crystal with x=0.06 increases steadily with temperature decrease, while the crystal with x=0.2 exhibits a magnetoresistance effect of ~ 8% at an external field of 9 kOe. The different dependence of the magnetizations MFC and MZFC of the sample with lower lithium content in the temperature range below TC is associated with the formation of a cluster glass and is caused by high coercivity and magnetic anisotropy of the crystal.

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Опубліковано

2001-04-10

Як цитувати

(1)
Barilo, S. N.; Bychkov, G. L.; Gatalskaya, V. I.; Kurochkin, L. A.; Sokol, V. P.; Szymczak, H.; Szymczak, R.; Baran, M. Magnetic Properties Lithium-Doped Manganite Single Crystals. Fiz. Nizk. Temp. 2001, 27, 392-397.

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