Electronic and magnetic stability in correlated transportations of rare-earth nickelate perovskites  

作　　者：Jinhao Chen Jikun Chen Zengyao Ren Dandan Zhao Mengxi Wang Jun Miao Xiaoguang Xu Yong Jiang Nuofu Chen 

机构地区：[1]School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China [2]School of Renewable Energy,North China Electric Power University,Beijing 102206,China

出　　处：《Journal of Rare Earths》2021年第2期174-179,共6页稀土学报（英文版）

基　　金：National Natural Science Foundation of China(61674013);Beijing New-star Plan of Science and Technology(Z191100001119071);the Fundamental Research Funds for the Central Universities(FRF-TP-19-023A3Z)。

摘　　要：Although the thermistor and metal to insulator transition bi-functionalities were discovered for rareearth nickelates(RENiO3),the electronic stability in their correlated transports under impulse voltage or magnetic field remain as open questions.Herein,we demonstrate the thermistor transportations of the electron correlated rare-earth nickelates under impulse direct current voltage and in magnetic environment.The insulating phase of RENiO3 shows zero crossing linear I-V characters,indicating their stable electronic resistance is independent of the imparted voltage up to 10 V and pulse width down to1 us,in spite of their sensitive electronic structures to polarizations.In addition,the high electronic stability associated with the thermistor transportation of RENiO3 is also demonstrated in magnetic fields up to 9 T(i.e.,MR<0.2%).The high electronic stability further paves the way to applying RENiO3 as a broad temperature range thermistor in temperature sensing or circuit protections for correlated electronics.

关 键 词：Rare-earth nickelates Correlated semiconductors THERMISTOR Metal to insulator transitions 

分 类 号：TB34[一般工业技术—材料科学与工程]