As MCQST Distinguished Lecturer, Prof. Philip Kim is giving a series of talks targeted to varied audiences. This specialized seminar is designed for researchers working in the same field.

Thermal and Thermoelectric Transport in Low-Dimensional Materials

In low-dimensional systems, a growing number of many-body quantum phenomena have emerged from the combination of reduced dimensionality, strong interactions, and topology. Thermal and thermoelectric transport, which is sensitive to energy- and entropy-carrying degrees of freedom, provides a discriminating probe of emergent excitations in quantum materials. In this talk, I will discuss several recent developments in the measurement of thermal and thermoelectric transport in graphene-based nanostructures in the quantum limit. In the first part, we will discuss the nature of magneto-electronic hydrodynamics measured from the viscous heating of charge carriers in a graphene Corbino device. In the second part, we discuss thermal conduction in the quantum Hall-ferromagnetic phase diagram. Here we show clear signatures of phase transitions between different broken symmetry states in strongly correlated states that appear in the quantum limit. In the last part of the talk we will discuss thermoelectric transport in the lowest Landau level formed in disordered graphene quantum dots, where the combination of quantum confinement and disorder effects leads to a novel non-Fermi liquid behavior. We will discuss the implications of electrical and thermoelectric transport in this system in the context of strongly entangled quantum systems made possible by the strong interactions between localized states engineered in graphene quantum structures.

About Philip Kim

Philip Kim received his B.S in physics at Seoul National University in 1990 and received his Ph. D. in Applied Physics from Harvard University in 1999. He was Miller Postdoctoral Fellow in Physics from University of California, Berkeley during 1999-2001. He then joined in Department of Physics at Columbia University as a faculty member during 2002-2014. Since 2014, he moves to Harvard University, where he is Professor of Physics and Professor Applied Physics.

Professor Kim is a world leading scientist in the area of materials research. His research area is experimental condensed matter physics with an emphasis on physical properties and applications of nanoscale low-dimensional materials. The focus of Prof. Kim’s group research is the mesoscopic investigation of transport phenomena, particularly, electric, thermal and thermoelectrical properties of low dimensional nanoscale materials.

Professor Kim published more than 250 papers in professional journals which are well cited. Professor Kim also received numerous honors and award including Benjamin Franklin Medal in Physics (2023); Tomassoni-Chisesi Prizes (2018), Vannevar Bush Faculty Fellowship (2018), Oliver E. Buckley Prize (2014), Loeb Lectureship, Harvard (2012); Dresden Barkhausen Award (2011); IBM Faculty Award (2009); Ho-Am Science Prize (2008); American Physical Society Fellow (2007); Columbia University Distinguished Faculty Award (2007); Recipient Scientific American 50 (2006).