Ho Nyung Lee Archives | The American Ceramic Society

Ho Nyung Lee

Perovskite oxides: Group demonstrates technique for engineering ‘perfect’ heterointerfaces

By / November 20, 2012

Schematic of the structure of a typical lanthanum aluminate-strontium titanate interface, left, and the abrupt, sharp interface obtained through an atomic layer engineering method developed at ORNL. Credit: Choi et al.; Advanced Materials. Oak Ridge National Lab researcher Ho Nyung Lee has studied complex-oxide thin films for over a decade, and during this time he particularly has…

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Strain relaxation in epitaxial thin film cobaltite by ferromagnetic ordering

By Eileen De Guire / September 21, 2012

Schematic illustration of a regular atomic array of ferromagnetic nano-domains formed by an unconventional strain relaxation in epitaxial thin film lanthanum cobaltite. Credit: Lee; ORNL. Bulk and “unbulk” materials behave very differently, which has led to some useful applications and a lot of very interesting research. As characterization tools improve and as our understanding of…

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ORNL group finds new way to tune band gaps in metal oxide films

By / March 13, 2012

ORNL’s material scientists developed a synthesis strategy for discovering novel complex-oxide thin films for stronger solar light absorption. Credit: ORNL. The research into metal oxide thin films for electronic applications continues to bear fruit. Last week I wrote about successful efforts to convert and a single layer of nickel oxide from its natural p-type state…

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