Interplay between strain and oxygen vacancies in lanthanum aluminate

Details Interplay between strain and oxygen vacancies in lanthanum aluminate Interplay between strain and oxygen vacancies in lanthanum aluminate

2012-02-07

arxiv.org/abs/1202.1431v1

Physics

Condensed Matter

Materials Science

Scientific paper

We evaluate the interplay between epitaxial strain and oxygen vacancy formation in the perovskite-structure oxide lanthanum aluminate, LaAlO$_3$. Using density functional theory within the GGA$+U$ approximation we calculate the dependence of the oxygen vacancy formation energy on the biaxial strain conditions. We find that the change in formation energy with strain is negligible over the range of strain values usually accessible through coherent epitaxial growth. Our findings suggest that experimental reports of different oxygen vacancy concentrations in strained films result from extrinsic factors, or from other impurities such as defect complexes.

Affiliated with

Also associated with

No associations

Rating

Interplay between strain and oxygen vacancies in lanthanum aluminate does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Interplay between strain and oxygen vacancies in lanthanum aluminate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interplay between strain and oxygen vacancies in lanthanum aluminate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-579255