Strong interplay between magnetic and structural properties in the spin-1/2 chain molecular compound D-F5 PNN

E. Canévet, B. Grenier, Y. Yoshida, N. Sakai, L. P. Regnault, T. Goto, Y. Fujii, T. Kawae

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We present elastic and inelastic neutron scattering results on spin-1/2 chain antiferromagnet D- F5 PNN. We show that a structural transition occurs in zero field below Tc ∼710 mK from C2/c space group (uniform chains) to Pc (bond-alternating chains). When applying a magnetic field at 50 mK, the space group gets back to C2/c above Hc1 ∼1 T. From the dispersion curves of the magnetic excitations measured at T=50 mK, we determine the values of the exchange parameters at 0 and 9 T, which evidence that the magnetic field makes the chains evolve from alternating to uniform. This change in behavior can be correlated unambiguously with the field-induced structural transition. These results evidence "mirror" field- and temperature-induced magnetocrystalline transitions.

Original languageEnglish
Article number132404
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume82
Issue number13
DOIs
Publication statusPublished - Oct 25 2010

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Strong interplay between magnetic and structural properties in the spin-1/2 chain molecular compound D-F<sub>5</sub> PNN'. Together they form a unique fingerprint.

  • Cite this