Magnetic critical behavior of a quasi two-dimensional antiferromagnet MnTiO3

Jun Akimitsu, Yoshikazu Ishikawa

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11 Citations (Scopus)

Abstract

The magnetic neutron scattering from a single crystal of MnTiO3 has been studied. The static magnetic susceptibility has shown two dimensional character above TN. The sublattice magnetization, however, follows a power law with β= 0.32±0.01 as in a three dimensional antiferromagnet. A quasi elastic neutron scattering has been observed in the vicinity of the Néel temperature with anisotropic three dimensional correlations. When temperature increases, the scattering profile transforms gradually to a ridge-like form, indicating that the two dimensional correlations develope at about 16 K above TN. The values of critical exponents in the three dimensional critical region coincide with the theoretical values of the three dimensional Ising system.

Original languageEnglish
Pages (from-to)462-469
Number of pages8
JournalJournal of the Physical Society of Japan
Volume42
Issue number2
Publication statusPublished - Feb 1977
Externally publishedYes

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neutron scattering
sublattices
ridges
elastic scattering
exponents
magnetic permeability
magnetization
temperature
single crystals
profiles
scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Magnetic critical behavior of a quasi two-dimensional antiferromagnet MnTiO3 . / Akimitsu, Jun; Ishikawa, Yoshikazu.

In: Journal of the Physical Society of Japan, Vol. 42, No. 2, 02.1977, p. 462-469.

Research output: Contribution to journalArticle

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