High field magnetic resonant properties of {beta}'-(ET){sub 2}SF{sub 5}CF{sub 2}SO{sub 3}.
The charge transfer salt {beta}'-(ET){sub 2}SF{sub 5}CF{sub 2}SO{sub 3}, which has previously been considered a spin-Peierls material with a T{sub SP}-33K, is examined using high-resolution high-field sub-millimeter/millimeter wave electron spin resonance (ESR), and nuclear magnetic resonance (NMR) techniques. A peak in the nuclear spin-lattice relaxation behavior in fields of 8 T, accompanied by a broadening and paramagnetic shift of the resonance line, indicates a phase transition at T{sub c}-20K. A pronounced change in the high-field ESR excitation spectra at -24T, observed at T{sub c}-20K, may indicate the onset of antiferromagnetic (AFM) correlations of the low temperature phase in {beta}'-(ET){sub 2}SF{sub 5}CF{sub 2}SO{sub 3}. Pecularities of the low-temperature magnetic and resonance properties of {beta}'-(ET){sub 2}SF{sub 5}CF{sub 2}SO{sub 3} are discussed.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Science Foundation (NSF)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 961076
- Report Number(s):
- ANL/MSD/JA-44421; TRN: US201010%%906
- Journal Information:
- Phys. Rev. B, Vol. 67, Issue Jun. 1, 2003; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- ENGLISH
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