Understanding the collective behavior of many-particle systems is a major intellectual challenge in modern physics. Even when the  interactions between particles are well understood, as is the case in condensed matter, the correlated motion of large numbers of particles leads to emergent phenomena that  require new experimental probes and new modes of thinking.   Our experimental research  explores systems of reduced dimensionality at low temperatures and high magnetic fields  where collective effects can lead to new phases of matter and to dramatic changes in behavior. We employ scanning tunneling microscopy, spectroscopy and  transport techniques to probe these  properties  and harness them for device applications. 

Electronic Properties of Graphene and Graphite            

Superconductivity and  Vortex Phases

2D Electron Systems and Charge Density Waves

Ferroelectric Polymers

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NSF   DOE Lucent    IAMDN emergence  ICAM