Expansion of vortex cores by strong electronic correlation in La 2-xSr xCuO 4 at low magnetic induction

R. Kadono, W. Higemoto, A. Koda, M. I. Larkin, G. M. Luke, A. T. Savici, Y. J. Uemura, K. M. Kojima, T. Okamoto, T. Kakeshita, S. Uchida, T. Ito, K. Oka, M. Takigawa, Masanori Ichioka, K. Machida

Research output: Contribution to journalArticle

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Abstract

The vortex core radius ρ ν, defined as the peak position of the supercurrent around the vortex, has been determined by muon spin rotation measurements in the mixed state of La 2-xSr xCuO 4 for x = 0.13, 0.15, and 0.19. At lower doping (x = 0.13 and 0.15), ρ ν(T) increases with decreasing temperature T, which is opposite to the behavior predicted by the conventional theory. Moreover, ρ ν(T→0) is significantly larger than the Ginzburg-Landau coherence length determined by the upper critical field, and shows a clear tendency to decrease with increasing the doping x. These features can be qualitatively reproduced in a microscopic model involving antiferromagnetic electronic correlations.

Original languageEnglish
Article number104523
Pages (from-to)1045231-1045235
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number10
Publication statusPublished - Mar 2004

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Electromagnetic induction
magnetic induction
Vortex flow
Doping (additives)
vortices
muon spin rotation
expansion
electronics
tendencies
radii
Temperature
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Kadono, R., Higemoto, W., Koda, A., Larkin, M. I., Luke, G. M., Savici, A. T., ... Machida, K. (2004). Expansion of vortex cores by strong electronic correlation in La 2-xSr xCuO 4 at low magnetic induction. Physical Review B - Condensed Matter and Materials Physics, 69(10), 1045231-1045235. [104523].

Expansion of vortex cores by strong electronic correlation in La 2-xSr xCuO 4 at low magnetic induction. / Kadono, R.; Higemoto, W.; Koda, A.; Larkin, M. I.; Luke, G. M.; Savici, A. T.; Uemura, Y. J.; Kojima, K. M.; Okamoto, T.; Kakeshita, T.; Uchida, S.; Ito, T.; Oka, K.; Takigawa, M.; Ichioka, Masanori; Machida, K.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 69, No. 10, 104523, 03.2004, p. 1045231-1045235.

Research output: Contribution to journalArticle

Kadono, R, Higemoto, W, Koda, A, Larkin, MI, Luke, GM, Savici, AT, Uemura, YJ, Kojima, KM, Okamoto, T, Kakeshita, T, Uchida, S, Ito, T, Oka, K, Takigawa, M, Ichioka, M & Machida, K 2004, 'Expansion of vortex cores by strong electronic correlation in La 2-xSr xCuO 4 at low magnetic induction', Physical Review B - Condensed Matter and Materials Physics, vol. 69, no. 10, 104523, pp. 1045231-1045235.
Kadono R, Higemoto W, Koda A, Larkin MI, Luke GM, Savici AT et al. Expansion of vortex cores by strong electronic correlation in La 2-xSr xCuO 4 at low magnetic induction. Physical Review B - Condensed Matter and Materials Physics. 2004 Mar;69(10):1045231-1045235. 104523.
Kadono, R. ; Higemoto, W. ; Koda, A. ; Larkin, M. I. ; Luke, G. M. ; Savici, A. T. ; Uemura, Y. J. ; Kojima, K. M. ; Okamoto, T. ; Kakeshita, T. ; Uchida, S. ; Ito, T. ; Oka, K. ; Takigawa, M. ; Ichioka, Masanori ; Machida, K. / Expansion of vortex cores by strong electronic correlation in La 2-xSr xCuO 4 at low magnetic induction. In: Physical Review B - Condensed Matter and Materials Physics. 2004 ; Vol. 69, No. 10. pp. 1045231-1045235.
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AU - Kadono, R.

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AU - Luke, G. M.

AU - Savici, A. T.

AU - Uemura, Y. J.

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AU - Kakeshita, T.

AU - Uchida, S.

AU - Ito, T.

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AU - Ichioka, Masanori

AU - Machida, K.

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