TY - JOUR
T1 - Crystal growth, structure, and transport properties of the five-leg spin ladder compound La8Cu7O19
AU - Sekar, C.
AU - Watanabe, T.
AU - Matsuda, A.
AU - Shibata, H.
AU - Zenitani, Y.
AU - Akimitsu, J.
PY - 2001/1/1
Y1 - 2001/1/1
N2 - The crystallization region of La8Cu7O19 exists in a narrow temperature (1045 - 1050°C) and composition range (1:4.5-1:5.0; La2O3:CuO molar ratio) in the La2O3-CuO system in an air ambient. In this narrow range, we have succeeded in growing large La8Cu7O19 single crystals, for the first time, by a modified slow cooling method. Single-crystal X-ray diffraction analysis reveals that La8Cu7O19 crystallizes in a monoclinic structure with space group C2/c and has the lattice parameters a = 13.82(7) Å, b = 3.734(8) Å, c = 34.77(10) Å, and β = 99.3(4)°. The electrical transport behavior of the as-grown and hole-doped La8Cu7O19 single crystals are semiconducting. A lowest resistivity of 11.0 mΩ-cm is measured at 293 K along the ladder direction (∥ b-axis) for the hole-doped samples.
AB - The crystallization region of La8Cu7O19 exists in a narrow temperature (1045 - 1050°C) and composition range (1:4.5-1:5.0; La2O3:CuO molar ratio) in the La2O3-CuO system in an air ambient. In this narrow range, we have succeeded in growing large La8Cu7O19 single crystals, for the first time, by a modified slow cooling method. Single-crystal X-ray diffraction analysis reveals that La8Cu7O19 crystallizes in a monoclinic structure with space group C2/c and has the lattice parameters a = 13.82(7) Å, b = 3.734(8) Å, c = 34.77(10) Å, and β = 99.3(4)°. The electrical transport behavior of the as-grown and hole-doped La8Cu7O19 single crystals are semiconducting. A lowest resistivity of 11.0 mΩ-cm is measured at 293 K along the ladder direction (∥ b-axis) for the hole-doped samples.
KW - LaCuO single crystals
KW - Spin ladder
KW - Structure
KW - Transport property
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U2 - 10.1006/jssc.2000.9017
DO - 10.1006/jssc.2000.9017
M3 - Article
AN - SCOPUS:0034801061
VL - 156
SP - 422
EP - 427
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
SN - 0022-4596
IS - 2
ER -