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Oxygen moment formation and canting in Li2CuO2
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UNSPECIFIED (2003) Oxygen moment formation and canting in Li2CuO2. PHYSICAL REVIEW B, 68 (14). -. doi:10.1103/PhysRevB.68.144410 ISSN 1098-0121.
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Official URL: http://dx.doi.org/10.1103/PhysRevB.68.144410
Abstract
The possibilities of oxygen moment formation and canting in the quasi-one-dimensional (quasi-1D) cuprate Li2CuO2 are investigated using single-crystal neutron diffraction at 2 K. The observed magnetic intensities could not be explained without the inclusion of a large ordered oxygen moment of 0.11(1)mu(B). Least-squares refinement of the magnetic structure of Li2CuO2 in combination with a spin-density Patterson analysis shows that the magnetization densities of the Cu and O atoms are highly aspherical, forming quasi-1D ribbons of localized Cu and O moments. Magnetic structure refinements and low-field magnetization measurements both suggest that the magnetic structure of Li2CuO2 at 2 K may be canted. A possible model for the canted configuration is proposed.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | PHYSICAL REVIEW B | ||||
Publisher: | AMERICAN PHYSICAL SOC | ||||
ISSN: | 1098-0121 | ||||
Official Date: | 1 October 2003 | ||||
Dates: |
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Volume: | 68 | ||||
Number: | 14 | ||||
Number of Pages: | 9 | ||||
Page Range: | - | ||||
DOI: | 10.1103/PhysRevB.68.144410 | ||||
Publication Status: | Published |
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