Magnetic phase diagram of the spin-Peierls and antiferromagnetic system CuGe1-xSixO3

S. Katano, O. Fujita, Jun Akimitsu, M. Nishi, K. Kakurai, Y. Fujii

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Neutron-diffraction experiments have been performed for CuGe1-xSixO3 single crystals over a wide range of the Si concentration (0.4, 1.0, 1.7, 1.8, 2.1, 2.6, and 5.1 at. %) to study relations between the original spin-Peierls (SP) state and the antiferromagnetic (AF) long-range ordering induced by the Si doping. The SP state is strongly suppressed with the appearance of the AF state with the small amount of Si, and disappears at the concentration of around 2.5% at low temperatures. The AF phase persists throughout the concentration range studied here. Hence, the coexistence of these two states occurs in the concentration range up to around 2.5 at. % Si. The magnitudes of the AF magnetic moment and the lattice dimerization are given as a function of x. The magnetic phase diagram obtained from these experiments has been compared with the previous reports on the Si and also Zn doping.

Original languageEnglish
Pages (from-to)10280-10283
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume57
Issue number17
Publication statusPublished - May 1 1998
Externally publishedYes

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Phase diagrams
Doping (additives)
phase diagrams
Dimerization
Neutron diffraction
Magnetic moments
Experiments
Single crystals
dimerization
neutron diffraction
magnetic moments
Temperature
single crystals

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Magnetic phase diagram of the spin-Peierls and antiferromagnetic system CuGe1-xSixO3 . / Katano, S.; Fujita, O.; Akimitsu, Jun; Nishi, M.; Kakurai, K.; Fujii, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 57, No. 17, 01.05.1998, p. 10280-10283.

Research output: Contribution to journalArticle

Katano, S. ; Fujita, O. ; Akimitsu, Jun ; Nishi, M. ; Kakurai, K. ; Fujii, Y. / Magnetic phase diagram of the spin-Peierls and antiferromagnetic system CuGe1-xSixO3 . In: Physical Review B - Condensed Matter and Materials Physics. 1998 ; Vol. 57, No. 17. pp. 10280-10283.
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