Volume 79, Number 4, August 2007
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||23 July 2007|
The magnetic ordering in the PrNdx Sr0.5 MnO3 system
National High Magnetic Field Laboratory, University of Science and Technology of China, Hefei 230026, PRC
Corresponding author: email@example.com
Accepted: 29 June 2007
We investigated the magnetic properties of the PrNdxSr0.5MnO3 (x = 0, 0.1, 0.2, 0.3, 0.4, 0.5) system. Since the two end samples Pr0.5Sr0.5MnO3 and Nd0.5Sr0.5MnO3 are A-type and CE-type AFM at low temperatures, respectively, due to their different orbital ordering and /, the magnetic structure of PrNdxSr0.5MnO3 is expected to be a mixture of A- and CE-type AFM. Our experiment results show that TC remains almost constant, while TN decreases dramatically as Pr3+ ions are replaced by Nd3+ ions. We suggest that this originates from the orbital ordering instability of the different magnetic structure type rather than from the ionic radius at the A-site.
PACS: 75.47.Lx – Manganites / 75.50.Ee – Antiferromagnetics
© Europhysics Letters Association, 2007
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