NEUTRON-DIFFRACTION STUDY OF A LA2COO4.15 SINGLE-CRYSTAL

Authors
GARDNER JS PAUL DM LCBECH B
Citation
Js. Gardner et al., NEUTRON-DIFFRACTION STUDY OF A LA2COO4.15 SINGLE-CRYSTAL, Physica. B, Condensed matter, 234, 1997, pp. 721-722
Citations number
2
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
234
Year of publication
1997
Pages
721 - 722
Database
ISI
SICI code
0921-4526(1997)234:<721:NSOALS>2.0.ZU;2-D
Abstract
A single crystal of La2CoO4.15 has been grown by the floating zone met hod and characterised extensively by bulk magnetisation and neutron di ffraction studies. Long range antiferromagnetic order (AFM) is observe d below (227.7 +/- 0.5) K and at (103 +/- 2) K a new AFM phase appears . The low temperature phase transition is associated with a first-orde r structural phase transition from a high-temperature orthorhombic pha se to a low-temperature tetragonal phase.