High-magnetic-field behavior of the triangular-lattice antiferromagnet CuFeO2. Petrenko, O., A.; Balakrishnan, G.; Lees, M., R.; Paul, D., M.; and Hoser, A. Physical Review B, 62(13):8983-8988, 2000.
High-magnetic-field behavior of the triangular-lattice antiferromagnet CuFeO2 [link]Website  abstract   bibtex   
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.
@article{
 title = {High-magnetic-field behavior of the triangular-lattice antiferromagnet CuFeO2},
 type = {article},
 year = {2000},
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 keywords = {anisotropy,fluctuations,growth,neutron-diffraction,one-dimensional antiferromagnets,partially disordered phase,spin,state},
 pages = {8983-8988},
 volume = {62},
 websites = {<Go to ISI>://WOS:000089733800079},
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 language = {English},
 notes = {ISI Document Delivery No.: 361QH<br/>Times Cited: 38<br/>Cited Reference Count: 19<br/>Petrenko, OA Balakrishnan, G Lees, MR Paul, DM Hoser, A<br/>American physical soc<br/>College pk},
 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.},
 bibtype = {article},
 author = {Petrenko, O A and Balakrishnan, G and Lees, M R and Paul, D M and Hoser, A},
 journal = {Physical Review B},
 number = {13}
}
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