Thermal conductivity reduction in oxygen-deficient strontium titanates Academic Article

abstract

• We report significant thermal conductivity reduction in oxygen-deficient lanthanum-doped strontium titanate (Sr1-x Lax Ti O3-) films as compared to unreduced strontium titanates. Our experimental results suggest that the oxygen vacancies could have played an important role in the reduction. This could be due to the nature of randomly distributed and clustered vacancies, which would be very effective to scatter phonons. Our results could provide a pathway for tailoring the thermal conductivity of complex oxides, which is very beneficial to various applications including thermoelectrics. 2008 American Institute of Physics.

authors

• Yu, Choongho

published proceedings

• APPLIED PHYSICS LETTERS

author list (cited authors)

• Yu, C., Scullin, M. L., Huijben, M., Ramesh, R., & Majumdar, A.

citation count

• 100

complete list of authors

• Yu, Choongho||Scullin, Matthew L||Huijben, Mark||Ramesh, Ramamoorthy||Majumdar, Arun

publication date

• January 2008

publisher

• AIP Publishing  Publisher

published in

• Applied Physics Letters  Journal

Digital Object Identifier (DOI)

• 10.1063/1.2930679

start page

• 191911

end page

• 191911

volume

• 92

issue

• 19

URL

• http://dx.doi.org/10.1063/1.2930679