La0.67 Ba 0.33 MnO 3中的大磁感效应
A large magnetoinductance effect in La0.67Ba0.33MnO3
摘要：
本文报道了La_（0.67）Ba_（0.33）MnO_3在不同直流偏置磁场下f = 100 kHz时的四探针阻抗。交流电阻（R）在Tp = 325 K附近出现一个峰值，该峰值伴随着电抗（X）的快速增加和零磁场中的峰值。磁阻在Tp附近有一个尖峰，其大小（H = 1kG时= 60%）超过交流磁阻（H = 1kG时= 5%）。有人建议，磁阻产生的样品，而不是电容的自感的变化。
英文摘要：
We report four probe impedance of La0.67Ba0.33MnO3 at f = 100 kHz under different dc bias magnetic fields. The ac resistance (R) exhibits a peak around Tp = 325 K which is accompanied by a rapid increase and a peak in the reactance (X) in a zero field. The magnetoreactance exhibits a sharp peak close to Tp and its magnitude (= 60% in H = 1 kG) exceeds that of the ac magnetoresistance (= 5 % inH = 1 kG). It is suggested that the magnetoreactance arises from changes in the self inductance of the sample rather than the capacitance.
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