Impurity effect in a novel spin-Peierls compound TiOBr

T. Sasaki, M. Yamazawa, K. Takahashi, T. Nagai, T. Asaka, Y. Matsui, Jun Akimitsu

Research output: Contribution to journalArticle

Abstract

We have performed magnetic susceptibility and electron diffraction measurements on impurity effect in a novel spin-Peierls system TiOBr, i.e. Ti1 - x Scx OBr. The impurity-induced antiferromagnetic long-range order found in Cu1 - x Znx GeO3 could not be observed in this system. A number of unpaired spins induced by the impurities can be explained by a simple model that one Sc impurity creates one S = frac(1, 2) spin up to the threshold concentration, xc ∼ 0.025. The induced impurity suppresses the spin-Peierls transition temperature, Tc 1 and the spin-Peierls phase disappears at xt ∼ 0.028, although the incommensurate state still persists above xt. Both values agree well with each other.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalPhysica B: Condensed Matter
Volume383
Issue number1
DOIs
Publication statusPublished - Aug 15 2006
Externally publishedYes

Fingerprint

Impurities
impurities
spin temperature
Magnetic susceptibility
Electron diffraction
Superconducting transition temperature
electron diffraction
transition temperature
magnetic permeability
thresholds
diffraction

Keywords

  • Electron diffraction
  • Impurity
  • Incommensurate
  • Spin-Peierls
  • TiOBr

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Sasaki, T., Yamazawa, M., Takahashi, K., Nagai, T., Asaka, T., Matsui, Y., & Akimitsu, J. (2006). Impurity effect in a novel spin-Peierls compound TiOBr. Physica B: Condensed Matter, 383(1), 1-4. https://doi.org/10.1016/j.physb.2006.03.033

Impurity effect in a novel spin-Peierls compound TiOBr. / Sasaki, T.; Yamazawa, M.; Takahashi, K.; Nagai, T.; Asaka, T.; Matsui, Y.; Akimitsu, Jun.

In: Physica B: Condensed Matter, Vol. 383, No. 1, 15.08.2006, p. 1-4.

Research output: Contribution to journalArticle

Sasaki, T, Yamazawa, M, Takahashi, K, Nagai, T, Asaka, T, Matsui, Y & Akimitsu, J 2006, 'Impurity effect in a novel spin-Peierls compound TiOBr', Physica B: Condensed Matter, vol. 383, no. 1, pp. 1-4. https://doi.org/10.1016/j.physb.2006.03.033
Sasaki T, Yamazawa M, Takahashi K, Nagai T, Asaka T, Matsui Y et al. Impurity effect in a novel spin-Peierls compound TiOBr. Physica B: Condensed Matter. 2006 Aug 15;383(1):1-4. https://doi.org/10.1016/j.physb.2006.03.033
Sasaki, T. ; Yamazawa, M. ; Takahashi, K. ; Nagai, T. ; Asaka, T. ; Matsui, Y. ; Akimitsu, Jun. / Impurity effect in a novel spin-Peierls compound TiOBr. In: Physica B: Condensed Matter. 2006 ; Vol. 383, No. 1. pp. 1-4.
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