575 citations · 1.9k across the 14 of their papers we have counts for
14 papers
Strain Doping: Reversible Single-Axis Control of a Complex Oxide Lattice via Helium Implantation
Hangwen Guo, Shuai Dong, Philip D. Rack +11
We report on the use of helium ion implantation to independently control the out-of-plane lattice constant in epitaxial La0.7Sr0.3MnO3 thin films without changing the in-plane latt…
Strain driven anisotropic magnetoresistance in antiferromagnetic LaSrMnO
A. T. Wong, C. Beekman, H. Guo +5
We investigate the effects of strain on antiferromagntic (AFM) single crystal thin films of LaSrMnO (x = 0.6). Nominally unstrained samples have strong magnetor…
Persistent metal-insulator transition at the surface of an oxygen-deficient, epitaxial manganite film
Paul C. Snijders, Min Gao, Hangwen Guo +6
The oxygen stoichiometry has a large influence on the physical and chemical properties of complex oxides. Most of the functionality in e.g. catalysis and electrochemistry depends i…
High temperature magnetic insulating phase in ultrathin La0.67Sr0.33MnO3 films
Hans Boschker, Jaap Kautz, Evert P. Houwman +6
We present a study of the thickness dependence of magnetism and electrical conductivity in ultra thin La0.67Sr0.33MnO3 films grown on SrTiO3 (110) substrates. We found a critical t…
Unusual size effects on thermoelectricity in a strongly correlated oxide
J. Ravichandran, A. K. Yadav, W. Siemons +5
We investigated size effects on thermoelectricity in thin films of a strongly correlated layered cobaltate. At room temperature, the thermopower is independent of thickness down to…
Temperature Driven Structural Phase Transition in Tetragonal-Like BiFeO3
Wolter Siemons, Michael D. Biegalski, Joong Hee Nam +1
Highly-strained BiFeO3 exhibits a "tetragonal-like, monoclinic" crystal structure found only in epitaxial films (with an out-of-plane lattice parameter exceeding the in-plane value…