Magnetic and resistivity properties of La_{1 - x}Li_xMnO₃ 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 T_C = 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 M_FC and M_ZFC of the sample with lower lithium content in the temperature range below T_C 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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