Journal article
Metal ion and oxygen vacancies in bulk and thin film La1-xSrxCoO3
Abstract
Positron-lifetime and depth-resolved Doppler-broadening spectroscopy were used to investigate vacancies formed in bulk and laser ablated thin film La1-xSrxCoO3. In bulk samples, metal ion vacancies, which are most likely situated in the La sublattice, show a lifetime of 219 ps and a Doppler-broadening S parameter 1.06 times higher than the bulk. The metal-ion vacancy concentration increases with increasing Sr content. For x>~0.3, oxygen …
Authors
Friessnegg T; Madhukar S; Nielsen B; Moodenbaugh AR; Aggarwal S; Keeble DJ; Poindexter EH; Mascher P; Ramesh R
Journal
Physical Review B, Vol. 59, No. 20, pp. 13365–13369
Publisher
American Physical Society (APS)
Publication Date
May 15, 1999
DOI
10.1103/physrevb.59.13365
ISSN
2469-9950