Aug, 1996
Magnetic properties of 1,5-dimethyl-6-oxoverdazyl radical crystals. Observation of a spin-Peierls transition in 3-(4-cyanophenyl)-1,5-dimethyl-6-oxoverdazyl radical, p-CyDOV
CHEMICAL PHYSICS LETTERS
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- Volume
- 257
- Number
- 5-6
- First page
- 538
- Last page
- 544
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1016/0009-2614(96)00577-5
- Publisher
- ELSEVIER SCIENCE BV
Magnetic susceptibilities of 5 kinds of 3-(4-R-phenyl)-1,5-dimethyl-6-oxoverdazyl radicals (PDOV (R=H), p-MDOV (R-CH3O), p-MeDOV (R=CH3), p-CyDOV (R=CN), and p-NDOV (R=NO2)) have been measured in the temperature range of 4.2-300 K. The susceptibilities of PDOV, p-MDOV, and p-MeDOV can be explained by an antiferromagnetic Heisenberg alternating chain model. The susceptibility of p-CyDOV shows a broad maximum at 54 K, and decreases abruptly at 15 K, suggesting a spin-Peierls transition, High-field magnetization data (H=0-35 T) which provide a clear evidence for a spin-Peierls transition were reported.
- Link information
- ID information
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- DOI : 10.1016/0009-2614(96)00577-5
- ISSN : 0009-2614
- CiNii Articles ID : 80009096474
- Web of Science ID : WOS:A1996VA85900020