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

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

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.

元の言語英語
記事番号132404
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
82
発行部数13
DOI
出版物ステータス出版済み - 10 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

これを引用

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, T.

:: Physical Review B - Condensed Matter and Materials Physics, 巻 82, 番号 13, 132404, 25.10.2010.

研究成果: ジャーナルへの寄稿記事

Canévet, E. ; Grenier, B. ; Yoshida, Y. ; Sakai, N. ; Regnault, L. P. ; Goto, T. ; Fujii, Y. ; Kawae, T. / Strong interplay between magnetic and structural properties in the spin-1/2 chain molecular compound D-F5 PNN. :: Physical Review B - Condensed Matter and Materials Physics. 2010 ; 巻 82, 番号 13.
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T1 - Strong interplay between magnetic and structural properties in the spin-1/2 chain molecular compound D-F5 PNN

AU - Canévet, E.

AU - Grenier, B.

AU - Yoshida, Y.

AU - Sakai, N.

AU - Regnault, L. P.

AU - Goto, T.

AU - Fujii, Y.

AU - Kawae, T.

PY - 2010/10/25

Y1 - 2010/10/25

N2 - 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.

AB - 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.

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