TY - JOUR
T1 - Magnetic order in the hole-doped two-leg ladder compound Sr2.5Ca11.5Cu24O41
T2 - Evidence from Cu-NMR and -NQR studies on a single crystal
AU - Ohsugi, S.
AU - Magishi, K.
AU - Matsumoto, S.
AU - Kitaoka, Y.
AU - Nagata, T.
AU - Akimitsu, J.
PY - 1999
Y1 - 1999
N2 - We report from Cu-NQR and -NMR experiments that hole-doped two-leg ladder compound Sr2.5-Ca11.5Cu24O41 comprising Cu2O3 ladders and CuO2 chains reveals three-dimensional (3D) magnetic order below TM = 2.2K. 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.
AB - We report from Cu-NQR and -NMR experiments that hole-doped two-leg ladder compound Sr2.5-Ca11.5Cu24O41 comprising Cu2O3 ladders and CuO2 chains reveals three-dimensional (3D) magnetic order below TM = 2.2K. 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.
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U2 - 10.1103/PhysRevLett.82.4715
DO - 10.1103/PhysRevLett.82.4715
M3 - Article
AN - SCOPUS:4243357784
SN - 0031-9007
VL - 82
SP - 4715
EP - 4718
JO - Physical Review Letters
JF - Physical Review Letters
IS - 23
ER -