Abstract The temperature dependence of Mn ion magnetization and the conductivity difference versus temperature provide phase separation evidence in Nd$_{1-x}$Sr$_x$MnO$_3$($x$=0.50, 0.51, 0.52, 0.53, 0.54, 0.55). This is different from other reports and may suggest that a fully charge-ordered state exists in quite a narrow range; the sample preparation procedure affects the charge ordering. The polaron effect also plays an important role in explaining the conductivity.
Received: 24 December 2002
Revised: 18 August 2003
Accepted manuscript online:
Lu Yi (鲁毅), Li Qing-An (李庆安), Di Nai-Li (邸乃力), Li Run-Wei (李润伟), Ma Xiao (马骁), Kou Zhi-Qi (寇志起), Cheng Zhao-Hua (成昭华) Evidence of phase separation in Nd1-xSrxMnO3(x=0.50, 0.51, 0.52, 0.53, 0.54, 0.55) 2003 Chinese Physics 12 1301
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