Low-temperature specific heat oM anM

J. Hamilton, E. Keatley, Honglyoul Ju, A. Raychaudhuri, V. Smolyaninova, R. Greene

Research output: Contribution to journalArticle

119 Citations (Scopus)

Abstract

We report measurements of the specific heat of (Formula presented)(Formula presented)Mn(Formula presented) and (Formula presented)(Formula presented)Mn(Formula presented) for temperatures (Formula presented) K. These materials are ferromagnetic metallic oxides which exhibit colossal magnetoresistance. We find that above 3 K the specific heat has terms proportional to (Formula presented) and (Formula presented), but a (Formula presented) term, as might be expected from the excitation of ferromagnetic spin waves, cannot be resolved outside of the precision of the data. The cubic term gives Debye temperatures of 400±17 K, and the linear term gives electron densities of states which are enhanced over band-structure estimates.

Original languageEnglish
Pages (from-to)14926-14929
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume54
Issue number21
DOIs
Publication statusPublished - 1996 Jan 1

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Specific heat
specific heat
Colossal magnetoresistance
Debye temperature
Electronic density of states
Spin waves
Ferromagnetic materials
Band structure
Oxides
Temperature
ferromagnetic materials
magnons

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Hamilton, J., Keatley, E., Ju, H., Raychaudhuri, A., Smolyaninova, V., & Greene, R. (1996). Low-temperature specific heat oM anM. Physical Review B - Condensed Matter and Materials Physics, 54(21), 14926-14929. https://doi.org/10.1103/PhysRevB.54.14926
Hamilton, J. ; Keatley, E. ; Ju, Honglyoul ; Raychaudhuri, A. ; Smolyaninova, V. ; Greene, R. / Low-temperature specific heat oM anM. In: Physical Review B - Condensed Matter and Materials Physics. 1996 ; Vol. 54, No. 21. pp. 14926-14929.
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Hamilton, J, Keatley, E, Ju, H, Raychaudhuri, A, Smolyaninova, V & Greene, R 1996, 'Low-temperature specific heat oM anM', Physical Review B - Condensed Matter and Materials Physics, vol. 54, no. 21, pp. 14926-14929. https://doi.org/10.1103/PhysRevB.54.14926

Low-temperature specific heat oM anM. / Hamilton, J.; Keatley, E.; Ju, Honglyoul; Raychaudhuri, A.; Smolyaninova, V.; Greene, R.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 54, No. 21, 01.01.1996, p. 14926-14929.

Research output: Contribution to journalArticle

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Hamilton J, Keatley E, Ju H, Raychaudhuri A, Smolyaninova V, Greene R. Low-temperature specific heat oM anM. Physical Review B - Condensed Matter and Materials Physics. 1996 Jan 1;54(21):14926-14929. https://doi.org/10.1103/PhysRevB.54.14926