Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2005-04-21
Applied Physics Letters, Vol 87, 18253 (2005)
Physics
Condensed Matter
Strongly Correlated Electrons
12 pages including 4 figures. submitted to Applied Physics Letters
Scientific paper
10.1063/1.2125129
We have prepared crystalline nanowires (diameter ~ 50 nm, length ~ a few microns) of the charge ordering manganite Pr_0.5Ca_0.5Mn_O3 using a low reaction temperature hydrothermal method and characterized them using X-ray diffraction, transmission electron microscopy, SQUID magnetometry and electron magnetic resonance measurements. While the bulk sample shows a charge ordering transition at 245 K and an antiferromagnetic transition at 175 K, SQUID magnetometry and electron magnetic resonance experiments reveal that in the nanowires phase, a ferromagnetic transition occurs at ~ 105 K. Further, the antiferromagnetic transition disappears and the charge ordering transition is suppressed. This result is particularly significant since the charge order in Pr_0.5Ca_0.5MnO_3 is known to be very robust, magnetic fields as high as 27 T being needed to melt it.
Anuradha K. N.
Bhat S. V.
Rao Sumathi
Sarangi Sash
No associations
LandOfFree
Charge order suppression and antiferromagnetic to ferromagnetic switch over in Pr_0.5Ca_0.5MnO_3 nanowires does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Charge order suppression and antiferromagnetic to ferromagnetic switch over in Pr_0.5Ca_0.5MnO_3 nanowires, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charge order suppression and antiferromagnetic to ferromagnetic switch over in Pr_0.5Ca_0.5MnO_3 nanowires will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-314972