Current localization and Joule self-heating effects in Cr doped Nd0.5Ca0.5MnO3 manganites

Details Current localization and Joule self-heating effects in Cr doped Nd0.5Ca0.5MnO3 manganites Current localization and Joule self-heating effects in Cr doped Nd0.5Ca0.5MnO3 manganites

2006-01-16

arxiv.org/abs/cond-mat/0601346v1

Physics

Condensed Matter

Materials Science

Accepted for publication as a Brief Report in Physical Review B (2006)

Scientific paper

10.1103/PhysRevB.73.012410

The effects of dc excitation current on the current-voltage curves of polycrystalline samples of Nd0.5Ca0.5Mn0.96Cr0.04O3 were investigated. The experimental results show that an abrupt jump of the voltage is concomitant with a huge increase in the temperature of the sample. A simple model and estimates for Joule self-heating effects support the experimental data. Moreover, the data strongly suggest that both the current localization in the metallic paths and local Joule self-heating effects are essential ingredients to understand the current-induced phase transition in phase-separated manganites.

Affiliated with

Also associated with

No associations

Rating

Current localization and Joule self-heating effects in Cr doped Nd0.5Ca0.5MnO3 manganites 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 Current localization and Joule self-heating effects in Cr doped Nd0.5Ca0.5MnO3 manganites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current localization and Joule self-heating effects in Cr doped Nd0.5Ca0.5MnO3 manganites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-524004