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High-magnetic-field behavior of the triangular-lattice antiferromagnet CuFeO2
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UNSPECIFIED. (2000) High-magnetic-field behavior of the triangular-lattice antiferromagnet CuFeO2. PHYSICAL REVIEW B, 62 (13). pp. 8983-8988. ISSN 0163-1829
Full text not available from this repository.Abstract
The high-magnetic-field behavior of the triangular-lattice antiferromagnet CuFeO2 is studied using single crystal neutron diffraction measurements in a field of up to 14.5 T and also by magnetization measurements in a field of up to 12 T. At low temperature, two well-defined first order magnetic phase transitions are found in this range of applied magnetic field (H parallel to c): at H-c1=7.6(3)/7.1(3) T and H-c2=13.2(1)/12.7(1) T when ramping the field up/down. In a field above H-c2 the magnetic Bragg peaks show unusual history dependence. In zero field T-N1 = 14.2(1) K separates a high-temperature paramagnetic and an intermediate incommensurate structure, while T-N2 = 11.1(3) K divides an incommensurate phase from the low-temperature four-sublattice ground state. The ordering temperature T-N1 is found to be almost field independent, while T-N2 decreases noticeably in applied field. The magnetic phase diagram is discussed in terms of the interactions between an applied magnetic field and the highly frustrated magnetic structure of CuFeO2.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QC Physics |
| Journal or Publication Title: | PHYSICAL REVIEW B |
| Publisher: | AMERICAN PHYSICAL SOC |
| ISSN: | 0163-1829 |
| Date: | 1 October 2000 |
| Volume: | 62 |
| Number: | 13 |
| Number of Pages: | 6 |
| Page Range: | pp. 8983-8988 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/12880 |
Data sourced from Thomson Reuters' Web of Knowledge
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