Complete melting of charge order in hydrothermally grown Pr_0.57 Ca_0.41 Ba_0.02 MnO_3 nanowires

Physics – Condensed Matter – Strongly Correlated Electrons

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Presented at the International Conference on nanoscience and Technology ICONSAT2006, New Delhi, India, March 2006;13 pages inc

Scientific paper

Nanowires of Pr_0.57 Ca_0.41 Ba_0.02 MnO_3 (PCBM) (diameter ~ 80-90 nm and length ~ 3.5 mm) were synthesized by a low reaction temperature hydrothermal method. Single-phase nature of the sample was confirmed by XRD experiments. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to characterize the morphology and microstructures of the nanowires. While the bulk PCBM is known to exhibit charge order (CO) below 230 K along with a ferromagnetic transition at 110 K, SQUID measurements on the nanowires of PCBM show that the charge order is completely absent and a ferromagnetic transition occurs at 115 K. However, the magnetization in the nanowires is observed to be less compared to that in the bulk. This observation of the complete melting of the charge order in the PCBM nanowires is particularly significant in view of the observation of only a weakening of the CO in the nanowires of Pr_0.5 Ca_0.5 MnO_3. Electron paramagnetic resonance experiments were also carried out on the PCBM nanowires using an X-band EPR spectrometer. Characteristic differences were observed in the line width of nanowires when compared with that of the bulk.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Complete melting of charge order in hydrothermally grown Pr_0.57 Ca_0.41 Ba_0.02 MnO_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 Complete melting of charge order in hydrothermally grown Pr_0.57 Ca_0.41 Ba_0.02 MnO_3 nanowires, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Complete melting of charge order in hydrothermally grown Pr_0.57 Ca_0.41 Ba_0.02 MnO_3 nanowires will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-434044

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.