Field-induced magnetic order in La2-xSrxCuO 4 (x=0.10,0.115,0.13) studied by in-plane thermal conductivity measurements

Kazutaka Kudo, M. Yamazaki, T. Kawamata, T. Adachi, T. Noji, Y. Koike, T. Nishizaki, N. Kobayashi

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Abstract

We have measured the thermal conductivity in the ab plane of La 2-xSrxCuO4 (x=0, 0.10,0.115,0.13) in magnetic fields up to 14 T parallel to the c axis and also parallel to the ab plane. By the application of magnetic fields parallel to the c axis, the thermal conductivity has been found to be suppressed at low temperatures below the temperature TK which is located above the superconducting transition temperature and is almost independent of the magnitude of the magnetic field. The suppression is marked in x=0.10 and 0.13, while it is small in x=0.115. Furthermore, no suppression is observed in the 1% Zn-substituted La 2-xSrxCu0.99Zn0.01O4 with x=0.115. Taking into account the experimental results that the temperature dependence of the relative reduction of the thermal conductivity is quite similar to the temperature dependence of the intensity of the incommensurate magnetic Bragg peak corresponding to the static stripe order and that the Zn substitution tends to stabilize the static order, it is concluded that the suppression of the thermal conductivity in magnetic fields is attributed to the development of the static stripe order. The present results suggest that the field-induced magnetic order in La2-xSrxCuO4 originates from the pinning of the dynamical stripes of spins and holes by vortex cores.

Original languageEnglish
Article number014503
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume70
Issue number1
DOIs
Publication statusPublished - Jul 2004
Externally publishedYes

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Thermal conductivity
thermal conductivity
Magnetic fields
retarding
magnetic fields
Temperature
temperature dependence
Superconducting transition temperature
Vortex flow
Substitution reactions
transition temperature
vortices
substitutes
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Field-induced magnetic order in La2-xSrxCuO 4 (x=0.10,0.115,0.13) studied by in-plane thermal conductivity measurements. / Kudo, Kazutaka; Yamazaki, M.; Kawamata, T.; Adachi, T.; Noji, T.; Koike, Y.; Nishizaki, T.; Kobayashi, N.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 70, No. 1, 014503, 07.2004.

Research output: Contribution to journalArticle

Kudo, Kazutaka ; Yamazaki, M. ; Kawamata, T. ; Adachi, T. ; Noji, T. ; Koike, Y. ; Nishizaki, T. ; Kobayashi, N. / Field-induced magnetic order in La2-xSrxCuO 4 (x=0.10,0.115,0.13) studied by in-plane thermal conductivity measurements. In: Physical Review B - Condensed Matter and Materials Physics. 2004 ; Vol. 70, No. 1.
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