Structural properties of Fe-doped lanthanum gallate

Kazuhiro Mori, Toshiharu Fukunaga, Koji Shibata, Kenji Iwase, Stefanus Harjo, Akinori Hoshikawa, Keiji Itoh, Takashi Kamiyama, Toru Ishigaki

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Structural characteristics of Fe-doped LaGaO3-δ were studied by differential scanning calorimeter, neutron and high-temperature X-ray powder diffraction measurements. It was found that a phase transition temperature increases in proportion to an amount of Fe. The crystal structure could be described as a low-temperature orthorhombic phase (Pnma) and a high-temperature rhombohedral one (R3c), respectively. Lattice parameters and bond lengths between M (=Ga/Fe) and O are monotonically expand with increasing Fe-content on both orthorhombic and rhombohedral phases. This means that a substitution of Ga3+ with Fe3+ leads to an electronic configuration of t2g 3eg 2 (high-spin state, HS).

Original languageEnglish
Pages (from-to)147-155
Number of pages9
JournalPhysica B: Condensed Matter
Volume352
Issue number1-4
DOIs
Publication statusPublished - Oct 30 2004
Externally publishedYes

Fingerprint

gallates
Lanthanum
lanthanum
Structural properties
calorimeters
lattice parameters
proportion
transition temperature
Bond length
substitutes
Calorimeters
neutrons
X ray powder diffraction
Temperature
Superconducting transition temperature
crystal structure
Lattice constants
scanning
Neutrons
Substitution reactions

Keywords

  • DSC
  • High-spin state
  • LaGaO
  • Neutron diffraction
  • Phase transition
  • X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Mori, K., Fukunaga, T., Shibata, K., Iwase, K., Harjo, S., Hoshikawa, A., ... Ishigaki, T. (2004). Structural properties of Fe-doped lanthanum gallate. Physica B: Condensed Matter, 352(1-4), 147-155. https://doi.org/10.1016/j.physb.2004.07.004

Structural properties of Fe-doped lanthanum gallate. / Mori, Kazuhiro; Fukunaga, Toshiharu; Shibata, Koji; Iwase, Kenji; Harjo, Stefanus; Hoshikawa, Akinori; Itoh, Keiji; Kamiyama, Takashi; Ishigaki, Toru.

In: Physica B: Condensed Matter, Vol. 352, No. 1-4, 30.10.2004, p. 147-155.

Research output: Contribution to journalArticle

Mori, K, Fukunaga, T, Shibata, K, Iwase, K, Harjo, S, Hoshikawa, A, Itoh, K, Kamiyama, T & Ishigaki, T 2004, 'Structural properties of Fe-doped lanthanum gallate', Physica B: Condensed Matter, vol. 352, no. 1-4, pp. 147-155. https://doi.org/10.1016/j.physb.2004.07.004
Mori K, Fukunaga T, Shibata K, Iwase K, Harjo S, Hoshikawa A et al. Structural properties of Fe-doped lanthanum gallate. Physica B: Condensed Matter. 2004 Oct 30;352(1-4):147-155. https://doi.org/10.1016/j.physb.2004.07.004
Mori, Kazuhiro ; Fukunaga, Toshiharu ; Shibata, Koji ; Iwase, Kenji ; Harjo, Stefanus ; Hoshikawa, Akinori ; Itoh, Keiji ; Kamiyama, Takashi ; Ishigaki, Toru. / Structural properties of Fe-doped lanthanum gallate. In: Physica B: Condensed Matter. 2004 ; Vol. 352, No. 1-4. pp. 147-155.
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