Excess oxygen in La_{2-x}Sr_xCoO_4

Manfred Bucher

Excess oxygen in La_{2-x}Sr_xCoO_4

General Physics 2017-12-27 v1

Authors: Manfred Bucher

Abstract

The amount of non-stoichiometric oxygen in La_{2-x}Sr_xCoO_{4+y} is calculated from Sr doping, x, and the measured stripe incommensurability 2delta for x = 1/4 and x = 1/3 based on a linear or square-root dependence of delta(x, y). The results favor the square-root dependence and indicate that the range of excess oxygen extends to x < 0.4 instead of to x < 0.3 as previously thought, coinciding with the low-temperature orthorhombic (LTO) phase.

Keywords

non-stoichiometric oxygen lanthanum strontium cobalt oxide stripe incommensurability sr doping low-temperature orthorhombic phase

Cite

@article{arxiv.1712.08676,
  title  = {Excess oxygen in La_{2-x}Sr_xCoO_4},
  author = {Manfred Bucher},
  journal= {arXiv preprint arXiv:1712.08676},
  year   = {2017}
}

Comments

6 pages, 1 figure, 1 table

Related papers

View all related →