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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). -. 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 |
|---|---|
| Subjects: | Q Science > QC Physics |
| Journal or Publication Title: | PHYSICAL REVIEW B |
| Publisher: | AMERICAN PHYSICAL SOC |
| ISSN: | 1098-0121 |
| Date: | 1 October 2003 |
| Volume: | 68 |
| Number: | 14 |
| Number of Pages: | 9 |
| Page Range: | - |
| Identification Number: | 10.1103/PhysRevB.68.144410 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/9144 |
Data sourced from Thomson Reuters' Web of Knowledge
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