Lattice structure and magnetization of LaCoO3 thin films

A. D. Rata; A. Herklotz; L. Schultz; K. Doerr

doi:10.1140/epjb/e2010-00203-6

Lattice structure and magnetization of LaCoO3 thin films

Strongly Correlated Electrons 2015-05-18 v1 Materials Science

Authors: A. D. Rata , A. Herklotz , L. Schultz , K. Doerr

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We investigate the structure and magnetic properties of thin films of the LaCoO $_{3}$ compound. Thin films are deposited by pulsed laser deposition on various substrates in order to tune the strain from compressive to tensile. Single-phase (001) oriented LaCoO $_{3}$ layers were grown on all substrates despite large misfits. The tetragonal distortion of the films covers a wide range from -2% to 2.8%. Our LaCoO $_{3}$ films are ferromagnetic with Curie temperature around 85 K, contrary to the bulk. The total magnetic moment is below $1\mu_{B}$ /Co $^{3+}$ , a value relatively small for an exited spin-state of the Co $^{3+}$ ions, but comparable to values reported in literature. A correlation of strain states and magnetic moment of Co $^{3+}$ ions in LaCoO $_{3}$ thin films is observed.

Keywords

lanthanum cobaltite thin films pulsed laser deposition epitaxial strain ferromagnetism curie temperature magnetic moment spin-state transition

Cite

@article{arxiv.1002.4726,
  title  = {Lattice structure and magnetization of LaCoO3 thin films},
  author = {A. D. Rata and A. Herklotz and L. Schultz and K. Doerr},
  journal= {arXiv preprint arXiv:1002.4726},
  year   = {2015}
}

Comments

submitted tu European Phys. J. B

Lattice structure and magnetization of LaCoO3 thin films

Abstract

Keywords

Cite

Comments

Related papers