Published March 2016 | Version v1
Journal article

Effect of bismuth doping on the physical properties of La-Li-Mn-O manganite

  • 1. Osmania University, Department of Physics, University College of Science, Hyderabad, Telangana (India)
  • 2. Osmania University, Department of Physics, Nizam College, Hyderabad, Telangana (India)
  • 3. Low Temperature Laboratory, UGC-DAE Consortium for Scientific Research, Indore, M.P. (India)
  • 4. UGC-DAE Consortium for Scientific Research, Indore, M.P. (India)

Description

The effects of bismuth doping at La site on magnetic, electrical and thermopower properties of LaLiMnO3 manganites have been investigated. The substitution of Bi ion leads to the weakening of ferromagnetic ordering at low temperature, and Curie temperature (TC) decreases with increase in Bi content. Interestingly, a dramatic increase in the magnitude of Seebeck coefficient at low temperature is observed in Bi-doped samples which might find potential application as thermoelectric. The results are attributed to the combined effect of the disorder and antiferromagnetic interaction induced by Bi doping. Both ρ(T) and S(T) data in the high-temperature region are discussed using small polaron hopping model. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1007/s00339-016-9731-5

Additional details

Identifiers

Publishing Information

Journal Title
Applied Physics. A, Materials Science and Processing
Journal Volume
122
Journal Issue
3
Journal Page Range
p. 1-8
ISSN
0947-8396
CODEN
APAMFC