Magnetic properties lithium-doped manganite single crystals
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PACS: 75.30.Vn, 75.70.Lk, 75.60.EjАнотація
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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2001-04-10
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S. N. Barilo, G. L. Bychkov, V. I. Gatalskaya, L. A. Kurochkin, V. P. Sokol, H. Szymczak, R. Szymczak, and M. Baran, Magnetic properties lithium-doped manganite single crystals, Low Temp. Phys. 27, (2001) [Fiz. Nizk. Temp. 27, 392-397, (2001)].
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