Phase diagram and soliton picture of a spin-peierls compound D-F5PNN

Yuji Inagaki, Tatsuya Kawae, Naoko Sakai, Naoyuki Kawame, Takao Goto, Jun Yamauchi, Yasuo Yoshida, Yutaka Fujii, Takashi Kambe, Yuko Hosokoshi, Béatrice Grenier, Jean Paul Boucher

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1 Citation (Scopus)


We investigate magnetic properties of an S = 1/2, quasi-one dimensional organic antiferromagnet, D-F5PNN using magnetization measurements taken at temperatures as low as 0.5 K. Three distinct phases were observed consisting of uniform, dimerized (D), and incommensurate (I) spin structures in the magnetic field versus temperature plane, where a significant hysteresis appears between DI transitions in the field scan measurements. A combination of magnon (S = 1) and soliton (S = 1/2) excitations have successfully reproduced the observed magnetic susceptibility. In addition, such excitations provide a reasonable interpretation of the temperature dependent electron spin resonance (ESR) spectra. These results indicate that D-F5PNN is an ideal candidate for studying the spin-Peierls transition.

Original languageEnglish
Article number113706
Journaljournal of the physical society of japan
Issue number11
Publication statusPublished - Nov 15 2017

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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