Transverse fluctuations in an Ising spin-glass: Fe0.4Mg0.6Cl2

Po Zen Wong, H. Yoshizawa, S. M. Shapiro, J. A. Mydosh, J. Van Den Berg, T. T.M. Palstra

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Abstract

ac-susceptibility and neutron-diffraction experiments show that Fe0.4Mg0.6Cl2 is a three-dimensional Ising spin-glass with a transition temperature Tsg=3.4 K. Inelastic-scattering experiments show a sharp spin-wave peak at the zone center for all temperature T2Tsg. This is the first direct observation of long-wavelength excitation in a spin-glass system. We suggest that it is due to the precession of spin clusters around the easy axis.

Original languageEnglish
Pages (from-to)1276-1279
Number of pages4
JournalPhysical review letters
Volume58
Issue number12
DOIs
Publication statusPublished - 1 Jan 1987
Externally publishedYes

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spin glass
precession
magnons
neutron diffraction
inelastic scattering
transition temperature
magnetic permeability
wavelengths
excitation
temperature

Cite this

Wong, P. Z., Yoshizawa, H., Shapiro, S. M., Mydosh, J. A., Van Den Berg, J., & Palstra, T. T. M. (1987). Transverse fluctuations in an Ising spin-glass: Fe0.4Mg0.6Cl2. Physical review letters, 58(12), 1276-1279. https://doi.org/10.1103/PhysRevLett.58.1276
Wong, Po Zen ; Yoshizawa, H. ; Shapiro, S. M. ; Mydosh, J. A. ; Van Den Berg, J. ; Palstra, T. T.M. / Transverse fluctuations in an Ising spin-glass : Fe0.4Mg0.6Cl2. In: Physical review letters. 1987 ; Vol. 58, No. 12. pp. 1276-1279.
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Wong, PZ, Yoshizawa, H, Shapiro, SM, Mydosh, JA, Van Den Berg, J & Palstra, TTM 1987, 'Transverse fluctuations in an Ising spin-glass: Fe0.4Mg0.6Cl2' Physical review letters, vol. 58, no. 12, pp. 1276-1279. https://doi.org/10.1103/PhysRevLett.58.1276

Transverse fluctuations in an Ising spin-glass : Fe0.4Mg0.6Cl2. / Wong, Po Zen; Yoshizawa, H.; Shapiro, S. M.; Mydosh, J. A.; Van Den Berg, J.; Palstra, T. T.M.

In: Physical review letters, Vol. 58, No. 12, 01.01.1987, p. 1276-1279.

Research output: Contribution to journalArticleAcademicpeer-review

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Wong PZ, Yoshizawa H, Shapiro SM, Mydosh JA, Van Den Berg J, Palstra TTM. Transverse fluctuations in an Ising spin-glass: Fe0.4Mg0.6Cl2. Physical review letters. 1987 Jan 1;58(12):1276-1279. https://doi.org/10.1103/PhysRevLett.58.1276