Magnetoresistance and magnetothermopower of nitrogen-annealed RE1.2Sr1.8Mn2O7+δ (RE = Nd, Pr)

C. S. Sheu, M. S. Huang, T. W. Wu, C. J. Liu

Research output: Contribution to journalArticlepeer-review


We report measurements of resistance and thermopower of RE1.2Sr1.8Mn2O7+δ (RE = Nd, Pr) ceramics up to a magnetic field of 5 T. Nitrogen annealing has dramatic effects on the transport in reducing the resistivity, shifting peak resistivity to a higher temperature, and shifting thermopower to more negative values. The value of ΔJT increases as a result of nitrogen annealing, indicating an enhanced Jahn-Teller distortion due to the increased Mn3+ concentration. These results are consistent with the effects of nitrogen annealing on the transport of RE = La.

Original languageEnglish
Pages (from-to)192-194
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Issue number1-3
Publication statusPublished - 2002 Feb 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Magnetoresistance and magnetothermopower of nitrogen-annealed RE<sub>1.2</sub>Sr<sub>1.8</sub>Mn<sub>2</sub>O<sub>7+δ</sub> (RE = Nd, Pr)'. Together they form a unique fingerprint.

Cite this