Jay Kikkawa
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SAS/ Physics and Astronomy

Research Interests:

Research Overview: Jay is interested in systems ranging from molecules to nanomaterials to strongly correlated bulk solids, with a special interest in spin and orbital magnetism.  Often his work aims to find new ways to understand these materials by introducing new static and transient optical spectroscopies. His group's time-resolved work on colossally magnetoresistive manganites compared spin and charge dynamics and found evidence for photonucleated transitory magnetic ordering using the dynamical magneto-optical Kerr effect. We have developed a method of optical magnetometry to produce background-free measurements of diamagnetic anisotropy in different chiralities of carbon nanotubes, a strategy we are now using for other low dimensional compounds.  They introduced a method of phonon sideband spectroscopy for studying finite-momentum ‘dark’ excitons in carbon nanotubes, and used this technique to provide a comprehensive study of these excitons across a wide range of nanotube chiralities. His group has also recently developed a sub-picosecond photoluminescence system, which we used to study the Purcell effect in plasmonically enhanced nanowires.   This Kerr gate system is one of only a few in the world and is now being employed to study charge and energy migration in nanocrystal assemblies.

Jay Kikkawa's Recent Publications can be found here

Ph.D. University of California, Santa Barbara (1997)
B.S. Harvard (1991)

Honors and Awards: 2001 William McMillan Award - NSF Faculty Early Career Development Award (2001-) - Alfred P. Sloan Fellow (2001-02) - Research Innovation Award (2000-02) - Parsons Foundation Fellow (1994-95) - Department of Education Condensed Matter Fellow (1991-93)