Effect of Ti4+ doping on magnetic properties of charge ordered Bi0.3Ca0.7MnO3. (5th July 2017)

• Record Type: Journal Article
• Authors: Yadav, Kamlesh; Singh, M P; Razavi, F S; Varma, G D
• Is Part Of: Materials research express. Volume 4:Number 7(2017)
• Publication Date: 2017-07-05
• Subjects: solid-state reaction -- manganite -- charge ordering -- antiferromagnetics; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/aa717a
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: The effect of Ti doping in Bi0.3 Ca0.7 Mn1− x Ti x O3 (where x = 0.0, 0.015, 0.03, 0.05, 0.08, 0.12 and 0.16) on structural, magnetic and transport properties have been studied. The charge-ordering temperature ( T CO ) decreases gradually with increasing Ti doping content, and finally disappears completely for x = 0.12. The Neel temperature ( T N ) also decreases with increasing Ti doping content. A transition to a cluster glass like state is observed at T ⩽ T N . The zero field cooled/field cooled (ZFC/FC) magnetization decreases at high temperature ( T > 200 K) with increasing Ti content, whereas an opposite trend is observed at low temperature ( T < 200 K). Small exchange bias effect is also observed for x = 0.08 at 10 K. The resistivity increases with increasing Ti doping content. The disorder induced by Ti doping on the Mn site plays a key role in explaining the observed magnetic and electrical properties.