Observation of an EPIR Effect in Nd1-xSrxMnO3 Ceramics with Secondary Phases

• Published in: Journal of materials science & technology Vol. 29; no. 8; pp. 737 - 741
• Main Authors: Chen, S.S., Luo, X.J., Shi, D.W., Li, H., Yang, C.P.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-08-2013
• Subjects: Electric pulse induced resistance change (EPIR); High-energy ball milling; Manganite; Nonlinearity; Space charge layer; 外部接口; 测量模式; 热处理方法; 电阻变化; 第二相; 陶瓷; 非线性; 高能量; Nonlinearity; Manganite; High-energy ball milling; Electric pulse induced resistance change (EPIR); Space charge layer
• ISSN: 1005-0302; 1941-1162
• DOI: 10.1016/j.jmst.2013.04.010

Nd1-xSrxMnO3 （x ： 0.3, 0.5） ceramics containing a secondary phase are synthesized by high-energy ball milling and post heat-treatment method. The 4-wire and 2-wire measuring modes are used to investigate the transport character of the grain/phase boundary （inner interface） and electrode-bulk interface （outer interface）, respectively, and the results indicate that there is a similar nonlinear I-V behaviour for both of the inner and outer interfaces, however, the electric pulse induced resistance change （EPIR） effect can only be observed at the outer interface.