Commensurability effect on the charge ordering of La2-xSrxNiO4

Takuro Katsufuji, T. Tanabe, T. Ishikawa, S. Yamanouchi, Y. Tokura, T. Kakeshita, R. Kajimoto, H. Yoshizawa

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Measurements of Hall coefficients, thermoelectric power, and optical conductivity spectra were done for single crystals of La2-xSrxNiO4 (x=0.27-0.50) showing prototypical charge ordering. We found that the character of the carriers in the charge-ordered state changes from electronlike to holelike when the hole concentration p crosses 1/3, and that the correlation gap in the optical spectrum for p=1/3 is collapsed when p is away from 1/3. These results indicate that the deviation of p from 1/3 can be regarded as electron or hole doping into the commensurate charge-ordered state at p=1/3.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Issue number8
Publication statusPublished - 1999
Externally publishedYes

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Optical conductivity
Hole concentration
Thermoelectric power
Doping (additives)
Single crystals
Electrons
Hall effect
optical spectrum
deviation
conductivity
single crystals
electrons

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Katsufuji, T., Tanabe, T., Ishikawa, T., Yamanouchi, S., Tokura, Y., Kakeshita, T., ... Yoshizawa, H. (1999). Commensurability effect on the charge ordering of La2-xSrxNiO4 Physical Review B - Condensed Matter and Materials Physics, 60(8).

Commensurability effect on the charge ordering of La2-xSrxNiO4 . / Katsufuji, Takuro; Tanabe, T.; Ishikawa, T.; Yamanouchi, S.; Tokura, Y.; Kakeshita, T.; Kajimoto, R.; Yoshizawa, H.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 60, No. 8, 1999.

Research output: Contribution to journalArticle

Katsufuji, T, Tanabe, T, Ishikawa, T, Yamanouchi, S, Tokura, Y, Kakeshita, T, Kajimoto, R & Yoshizawa, H 1999, 'Commensurability effect on the charge ordering of La2-xSrxNiO4 ', Physical Review B - Condensed Matter and Materials Physics, vol. 60, no. 8.
Katsufuji, Takuro ; Tanabe, T. ; Ishikawa, T. ; Yamanouchi, S. ; Tokura, Y. ; Kakeshita, T. ; Kajimoto, R. ; Yoshizawa, H. / Commensurability effect on the charge ordering of La2-xSrxNiO4 In: Physical Review B - Condensed Matter and Materials Physics. 1999 ; Vol. 60, No. 8.
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