L305
Laser MBE as a Promising New Technology for Photoreaction Control and
Photofunctional Oxide Synthesis
Hideomi Koinuma
Ceramics Materials and Structures Laboratory, Tokyo Institute of Technology
Stimulated by the discovery of high-Tc superconductors, metal oxides
attracts rapidly growing interest as a treasure island of new functional
materials, such as colossal magnetic perovskites, quantum paraelectric and
giant piezoelectric titanates, and exitonic UV lasing ZnO. The development
of process to fabricate atomically regulated oxide thin films is considered
to facilitate the systematic exploration of new materials, properties, and
application of oxides. As powerful tool for this purpose, we have developed
the laser molecular beam epitaxy system and verified the construction of
artificially designed crystal lattices and hetero-junctions. The concept,
method, and some experimental results of the system are presented with a
focus on the photofunctional oxide synthesis. A novel system which combines
this laser MBE and combinatorial chemistry is proposed as a promising
technology for future materials exploration.
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