Ultrasonic Study of the Stability of the Charge Ordering in (Nd0.75Na0.25)1-x(Nd0.5Ca0.5)xMnO3
JIANG Liang,KONG Hui,LIU Yi,SU Jin-Rui,ZHU Chang-Fei
Journal of Inorganic Materials . 2007, (1): 93 -96 .  DOI: 10.3724/SP.J.1077.2007.00093