Critical phenomena in helical magnet β-MnO2: X-ray magnetic scattering study

Hirohiko Sato, Yoichi Kawamura, Toshiyuki Ogawa, Youichi Murakami, Hiroyuki Ohsumi, Masaichiro Mizumaki, Naoshi Ikeda

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

It has been theoretically expected that critical phenomena of helimagnetism is drastically different from those of collinear antiferromagnetism due to the existence of chiral degree of freedom. In order to verify this prediction, we carried out X-ray magnetic scattering measurements on a simplest helimagnet β-MnO2 using a synchrotron radiation. The critical exponent β was estimated at 0.25 ± 0.05 from the temperature dependence of the scattering intensity. This value is consistent with the predicted value 0.253 for chiral system rather than with 0.346 for collinear system.

Original languageEnglish
Pages (from-to)757-758
Number of pages2
JournalPhysica B: Condensed Matter
Volume329-333
Issue numberII
DOIs
Publication statusPublished - May 2003
Externally publishedYes

Fingerprint

Magnets
magnets
Scattering
Antiferromagnetism
X rays
antiferromagnetism
Synchrotron radiation
scattering
synchrotron radiation
x rays
degrees of freedom
exponents
temperature dependence
predictions
Temperature

Keywords

  • Critical phenomena
  • Helical magnetism
  • Manganese oxides
  • X-ray magnetic scattering

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Sato, H., Kawamura, Y., Ogawa, T., Murakami, Y., Ohsumi, H., Mizumaki, M., & Ikeda, N. (2003). Critical phenomena in helical magnet β-MnO2: X-ray magnetic scattering study. Physica B: Condensed Matter, 329-333(II), 757-758. https://doi.org/10.1016/S0921-4526(02)02501-2

Critical phenomena in helical magnet β-MnO2 : X-ray magnetic scattering study. / Sato, Hirohiko; Kawamura, Yoichi; Ogawa, Toshiyuki; Murakami, Youichi; Ohsumi, Hiroyuki; Mizumaki, Masaichiro; Ikeda, Naoshi.

In: Physica B: Condensed Matter, Vol. 329-333, No. II, 05.2003, p. 757-758.

Research output: Contribution to journalArticle

Sato, H, Kawamura, Y, Ogawa, T, Murakami, Y, Ohsumi, H, Mizumaki, M & Ikeda, N 2003, 'Critical phenomena in helical magnet β-MnO2: X-ray magnetic scattering study', Physica B: Condensed Matter, vol. 329-333, no. II, pp. 757-758. https://doi.org/10.1016/S0921-4526(02)02501-2
Sato H, Kawamura Y, Ogawa T, Murakami Y, Ohsumi H, Mizumaki M et al. Critical phenomena in helical magnet β-MnO2: X-ray magnetic scattering study. Physica B: Condensed Matter. 2003 May;329-333(II):757-758. https://doi.org/10.1016/S0921-4526(02)02501-2
Sato, Hirohiko ; Kawamura, Yoichi ; Ogawa, Toshiyuki ; Murakami, Youichi ; Ohsumi, Hiroyuki ; Mizumaki, Masaichiro ; Ikeda, Naoshi. / Critical phenomena in helical magnet β-MnO2 : X-ray magnetic scattering study. In: Physica B: Condensed Matter. 2003 ; Vol. 329-333, No. II. pp. 757-758.
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