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, Tatsuya Kawae

Research output: Contribution to journalArticle

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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

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molecular chains
Structural properties
Magnetic properties
Magnetic fields
magnetic properties
Inelastic neutron scattering
Mirrors
magnetic fields
inelastic scattering
neutron scattering
mirrors
Temperature
curves
excitation
temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Strong interplay between magnetic and structural properties in the spin-1/2 chain molecular compound D-F5 PNN. / Canévet, E.; Grenier, B.; Yoshida, Y.; Sakai, N.; Regnault, L. P.; Goto, T.; Fujii, Y.; Kawae, Tatsuya.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 82, No. 13, 132404, 25.10.2010.

Research output: Contribution to journalArticle

Canévet, E. ; Grenier, B. ; Yoshida, Y. ; Sakai, N. ; Regnault, L. P. ; Goto, T. ; Fujii, Y. ; Kawae, Tatsuya. / Strong interplay between magnetic and structural properties in the spin-1/2 chain molecular compound D-F5 PNN. In: Physical Review B - Condensed Matter and Materials Physics. 2010 ; Vol. 82, No. 13.
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AU - Sakai, N.

AU - Regnault, L. P.

AU - Goto, T.

AU - Fujii, Y.

AU - Kawae, Tatsuya

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