Magnetic order in the hole-doped two-leg ladder compound Sr2.5Ca11.5Cu24O41: Evidence from Cu-NMR and -NQR studies on a single crystal

S. Ohsugi, K. Magishi, S. Matsumoto, Y. Kitaoka, T. Nagata, Jun Akimitsu

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Abstract

We report from Cu-NQR and -NMR experiments that hole-doped two-leg ladder compound Sr2.5Ca11.5Cu24O41 comprising Cu2O3 ladders and CuO2 chains reveals three-dimensional (3D) magnetic order below TM = 2.2 K. We found that small moments ∼0.02μB are spontaneously ordered on the ladders, whereas large moments ∼0.56μB are on the magnetic Cu sites occupying about one-fourth of the chain Cu sites. It is suggested that this 3D magnetic order is a cooperative phenomenon driven by the formation of pinned charge density wave-like state on the ladders which the optical conductivity measurement has clarified.

Original languageEnglish
Pages (from-to)4715-4718
Number of pages4
JournalPhysical Review Letters
Volume82
Issue number23
Publication statusPublished - Jun 7 1999
Externally publishedYes

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ladders
nuclear magnetic resonance
single crystals
moments
conductivity

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  • Physics and Astronomy(all)

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Magnetic order in the hole-doped two-leg ladder compound Sr2.5Ca11.5Cu24O41 : Evidence from Cu-NMR and -NQR studies on a single crystal. / Ohsugi, S.; Magishi, K.; Matsumoto, S.; Kitaoka, Y.; Nagata, T.; Akimitsu, Jun.

In: Physical Review Letters, Vol. 82, No. 23, 07.06.1999, p. 4715-4718.

Research output: Contribution to journalArticle

Ohsugi, S. ; Magishi, K. ; Matsumoto, S. ; Kitaoka, Y. ; Nagata, T. ; Akimitsu, Jun. / Magnetic order in the hole-doped two-leg ladder compound Sr2.5Ca11.5Cu24O41 : Evidence from Cu-NMR and -NQR studies on a single crystal. In: Physical Review Letters. 1999 ; Vol. 82, No. 23. pp. 4715-4718.
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