TY  - JOUR
AU  - Ceretti, Monica
AU  - Piovano, Andrea
AU  - Cousson, Alain
AU  - Berthier, Tanguy
AU  - Meven, Martin
AU  - Agostini, Giovanni
AU  - Schefer, Jurg
AU  - Hernandez, Olivier
AU  - Lamberti, Carlo
AU  - Paulus, Werner
TI  - Growth and characterization of large high quality brownmillerite CaFeO$_{2.5}$ single crystals
JO  - CrystEngComm
VL  - 14
IS  - 18
SN  - 1466-8033
CY  - London
PB  - RSC
M1  - FZJ-2015-03009
SP  - 5771-5776
PY  - 2012
AB  - The growth conditions of large and high quality single-crystals of CaFeO2.5 by the floating-zone technique in an image furnace are discussed. Structural characterization of the as grown single crystals have been carried out by neutron and X-ray diffraction as well as by HRTEM revealed the excellent quality in terms of composition homogeneity and crystalline quality. Magnetic measurements have been performed on oriented crystals by SQUID and neutron diffraction in the range of 5–700 K in order to clear up controversial discussions on possible magnetic phase transitions. The magnetic transitions reported elsewhere are discussed in terms of oxygen nonstoichiometries leading to multiphase CaFeO2.5¡d related to the crystal growth conditions.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000307590700020
DO  - DOI:10.1039/c2ce25413a
UR  - https://juser.fz-juelich.de/record/190050
ER  -