Please use this identifier to cite or link to this item:
|Title:||Magnetic polaron conduction above the curie temperature in Fe-doped Pr0.75Sr0.25MnO3|
|Citation:||Liu, J.-M., Yu, T., Huang, Q., Li, J., Shen, Z.X., Ong, C.K. (2002-02-18). Magnetic polaron conduction above the curie temperature in Fe-doped Pr0.75Sr0.25MnO3. Journal of Physics Condensed Matter 14 (6) : L141-L147. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-8984/14/6/102|
|Abstract:||The transport behaviour of Fe-doped Pr0.75Sr0.25MnO3 (PSMFO, Fe = 0.05) is studied by zero-field conductivity probing and Raman spectroscopy. It is revealed that the conductivity of PSMFO above Tm, the metal-insulator transition point, shows variable-range-hopping behaviour instead of the small-polaron mode. The B2g Raman line at 630 cm-1 arising from the Mn-O bending and stretching modes undergoes anomalous softening as the temperature is lowered from ambient temperature, indicating a magnetic ordering sequence above Tm. It is demonstrated that the electronic conduction of PSMFO above Tm is governed by magnetic polarons embedded in a matrix of paramagnetic insulating phase.|
|Source Title:||Journal of Physics Condensed Matter|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 13, 2019
WEB OF SCIENCETM
checked on Jan 29, 2019
checked on Jan 11, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.