TY - JOUR

T1 - Structural effect on the static spin and charge correlations in (formula presented)

AU - Fujita, M.

AU - Goka, H.

AU - Yamada, K.

AU - Matsuda, M.

PY - 2002

Y1 - 2002

N2 - We report the results of elastic neutron-scattering measurements performed on (formula presented) 0.06, 0.075, and 0.085. In the low-temperature less-orthorhombic [(LTLO), (formula presented) symmetry] phase, the charge-density-wave (CDW) and spin-density-wave (SDW) wave vectors were found to tilt in a low-symmetric direction with one-dimensional anisotropy in the (formula presented) plane, while they were aligned along the high-symmetry axis in the low-temperature tetragonal (formula presented) symmetry) phase. The coincident direction of two wave vectors suggests a close relation between CDW and SDW orders. The SDW wave vector systematically deviates from the Cu-O bond direction in the LTLO phase upon Sr substitution and the tilt angle in the LTLO phase is smaller than that in the low-temperature orthorhombic phase (formula presented) symmetry) with comparable in-plane orthorhombic distortion. These results demonstrate a correlation between the corrugated pattern of the (formula presented) plane and the deviations.

AB - We report the results of elastic neutron-scattering measurements performed on (formula presented) 0.06, 0.075, and 0.085. In the low-temperature less-orthorhombic [(LTLO), (formula presented) symmetry] phase, the charge-density-wave (CDW) and spin-density-wave (SDW) wave vectors were found to tilt in a low-symmetric direction with one-dimensional anisotropy in the (formula presented) plane, while they were aligned along the high-symmetry axis in the low-temperature tetragonal (formula presented) symmetry) phase. The coincident direction of two wave vectors suggests a close relation between CDW and SDW orders. The SDW wave vector systematically deviates from the Cu-O bond direction in the LTLO phase upon Sr substitution and the tilt angle in the LTLO phase is smaller than that in the low-temperature orthorhombic phase (formula presented) symmetry) with comparable in-plane orthorhombic distortion. These results demonstrate a correlation between the corrugated pattern of the (formula presented) plane and the deviations.

UR - http://www.scopus.com/inward/record.url?scp=85038310562&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.66.184503

DO - 10.1103/PhysRevB.66.184503

M3 - Article

AN - SCOPUS:85038310562

SN - 1098-0121

VL - 66

SP - 1

EP - 6

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 18

ER -