摘要: We have measured the resistivity, special heat and AC magnetic suceptibility versus temperature in La1-xCaxMnO3(LCMO) bulk samples with x=0.3, 0.4, 0.5, 0.6. In the LCMO (x=0.3 and 0.4) samples a transition from dρ/dT0 was observed, accompanied by a peak in specific heat. In AC magnetic suceptibility measurement, a ferromagnetic and an antiferromagnetic transitions were observed in LCMO (x=0.5) sample.
中图分类号:
(Other materials)
75.40.Cx (Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.))
75.30.Cr (Saturation moments and magnetic susceptibilities)
75.30.Kz (Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
周雅琴, 连贵君, 张寅, 熊光成, 王克勤, 阮可青, 曹烈兆, 叶红娟. AGNETORESISTANCE, SPECIAL HEAT AND AC MAGNETIC SUSCEPTIBILITY IN La1-xCaxMnO3 SYSTEM[J]. 中国物理B, 1998, 7(12): 919-924.
ZHOU YA-QIN (周雅琴), LIAN GUI-JUN (连贵君), ZHANG YIN (张寅), XIONG GUANG-CHENG (熊光成), WANG KE-QIN (王克勤), RUAN KE-QING (阮可青), CAO LIE-ZHAO (曹烈兆), YE HONG-JUAN (叶红娟). AGNETORESISTANCE, SPECIAL HEAT AND AC MAGNETIC SUSCEPTIBILITY IN La1-xCaxMnO3 SYSTEM[J]. Acta Physica Sinica (Overseas Edition), 1998, 7(12): 919-924.