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California State University, Long Beach
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People

Jiyeong Gu

Jiyeong Gu

Associate Professor, Condensed Matter Experiment

Ph.D., Seoul National University, Korea, 1998
M.S., Seoul National University, Korea, 1995
B.S., Seoul National University, Korea, 1993

Location:
Office: Hall of Science (HSCI), Room 264

California State University, Long Beach
Department of Physics & Astronomy
1250 Bellflower Blvd.
Long Beach, CA 90840-9505

Phone: (562) 985-4848 Office
Fax: (562) 985-7924
Email: jgu@csulb.edu

Webpage:
http://www.csulb.edu/~jgu/

Research Interest:
Condensed Matter Experiment, Thin Films, Nanomagnetism, Superconductivity.

Nanostructured materials are of intense interest because they can have unique electrical, chemical, structural, and magnetic properties which are not otherwise observed in nature. Many basic and applied research challenges benefit from the use of magnetic materials in contact with other materials on the nanoscale. For example, proximity effect between disparate materials such as ferromagnet (F)/superconductor (S), ferromagnet/antiferro-magnet, hard/soft ferromagnets, ferromagnet/insulator, ferromagnet/semiconductor systems, etc. offers extraordinary opportunities to create new composite system with new properties and functionalities. Recent technological advances made it possible to create hybrid nanostructures with high quality interfaces.

My research investigates experimentally fundamental quantum electronic and magnetic phenomena occurring in F-based hybrid systems with other materials, such as S/F hybrid system. We produce novel systems artificially in nano-structured composite materials, such as S/F/S or F/S/F trilayers, S/F multilayers, and S-films with embedded magnetic nanoclusters. Samples are fabricated as thin films using sputtering method. Even though many interesting phenomena and possible applications have been proposed for F/S system very few experimental works have been reported. Innovative approach by designing new type of materials or structures not only provides the opportunity for realization of theoretical predictions but also creates whole new phenomena possible in F/S hybrid system.