Strain coupling of oxygen non-stoichiometry in perovskite thin films

A Herklotz, D Lee, EJ Guo, TL Meyer… - Journal of Physics …, 2017 - iopscience.iop.org
The effects of strain and oxygen vacancies on perovskite thin films have been studied in
great detail over the past decades and have been treated separately from each other. While …

Strain control of oxygen vacancies in epitaxial strontium cobaltite films

JR Petrie, C Mitra, H Jeen, WS Choi… - Advanced Functional …, 2016 - Wiley Online Library
The ability to manipulate oxygen anion defects rather than metal cations in complex oxides
can facilitate creating new functionalities critical for emerging energy and device …

Tuning the magnetic properties of thin films by epitaxial strain

D Fuchs, E Arac, C Pinta, S Schuppler… - Physical Review B …, 2008 - APS
Ferromagnetic order can be induced in La Co O 3 (LCO) thin films by epitaxial strain. Here,
we show that the magnetic properties can be “tuned” by epitaxial strain imposed on LCO thin …

X-ray absorption and magnetic circular dichroism of , , and films: Evidence for cobalt-valence-dependent magnetism

M Merz, P Nagel, C Pinta, A Samartsev… - Physical Review B …, 2010 - APS
Epitaxial thin films of undoped LaCoO 3, of electron-doped La 0.7 Ce 0.3 CoO 3, and of hole-
doped La 0.7 Sr 0.3 CoO 3 exhibit ferromagnetic order with a transition temperature TC≈ 84 …

Strain-Induced Insulator State and Giant Gauge Factor of Films

AD Rata, A Herklotz, K Nenkov, L Schultz, K Dörr - Physical review letters, 2008 - APS
A strain-induced change of the electrical conductivity by several orders of magnitude has
been observed for ferromagnetic La 0.7 Sr 0.3 CoO 3 films. Tensile strain is found to drive …

Chemically Driven Nanoscopic Magnetic Phase Separation at the SrTiO3(001)/La1‐xSrxCoO3 Interface

MA Torija, M Sharma, J Gazquez, M Varela… - Advanced …, 2011 - Wiley Online Library
The remarkable functionality of perovskite oxides provides many opportunities for new
physics, in addition to applications in solid oxide fuel cells, ferroelectric memory, and many …

Epitaxial La0. 5Sr0. 5CoO3 thin films: Structure, magnetism, and transport

MA Torija, M Sharma, MR Fitzsimmons… - Journal of Applied …, 2008 - pubs.aip.org
La 1− x Sr x CoO 3 has received considerable attention in bulk form. This is due to interest in
the fundamental magnetic properties (spin-state transitions and magnetic phase separation) …

Suppression of the ferromagnetic state in films by rhombohedral distortion

D Fuchs, L Dieterle, E Arac, R Eder, P Adelmann… - Physical Review B …, 2009 - APS
Epitaxially strained LaCoO 3 (LCO) thin films were grown with different film thickness, t, on
(001) oriented (LaAlO 3) 0.3 (SrAl 0.5 Ta 0.5 O 3) 0.7 substrates. After initial pseudomorphic …

Oxygen Vacancy Ordering Modulation of Magnetic Anisotropy in Strained LaCoO3–x Thin Films

N Zhang, Y Zhu, D Li, D Pan, Y Tang… - … applied materials & …, 2018 - ACS Publications
Oxygen vacancy configurations and concentration are coupled with the magnetic, electronic,
and transport properties of perovskite oxides, and manipulating the physical properties by …

Suppression of coercivity in nanoscale graded magnetic materials

L Fallarino, M Quintana, E López Rojo, A Berger - Physical Review Applied, 2021 - APS
We investigate temperature-dependent magnetization reversal of Co Ru graded films, in
which a predefined depth-dependent exchange-coupling strength J follows a V-shaped …