Journal Article

FZJ-2015-03009

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Growth and characterization of large high quality brownmillerite CaFeO$_{2.5}$ single crystals

Ceretti, M. ; Piovano, A. ; Cousson, A. ; Berthier, T. ; Meven, M.FZJ* ; Agostini, G. ; Schefer, J. ; Hernandez, O. ; Lamberti, C. ; Paulus, W. (Corresponding Author)

2012
RSC London

This record in other databases:    

Please use a persistent id in citations: doi:10.1039/c2ce25413a

Abstract: 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.

Keyword(s): Basic research (1st) ; Others (1st) ; Materials Science (2nd) ; Condensed Matter Physics (2nd) ; Chemistry (2nd) ; Crystallography (2nd)

---

Contributing Institute(s):

1. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
2. Streumethoden (JCNS-2)

Research Program(s):

1. 54G - JCNS (POF2-54G24) (POF2-54G24)

Experiment(s):

1. HEiDi: Single crystal diffractometer on hot source (SR9b)

---

Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

---