Roman Anufriev

Roman Anufriev

Project Associate Professor

The University of Tokyo

Biography

I graduated from the Nanotechnology faculty of St. Petersburg Academic University and moved to France, where I did my Ph.D. on optics of semiconductor nanowires at INSA-Lyon. Next, I’ve been working in Nomura group on phononic crystals, and currently, I am a project associate professor at the University of Tokyo. My research is focused on phonon and heat transport in nanostructures. Specifically, I study ballistic thermal conduction in nanowires and phononic crystals for applications in thermoelectrics and microelectronics.

Interests

  • Ballistic thermal transport
  • Nanoscale heat conduction
  • Phononic crystals
  • Thermoelectrics
  • Nanowires

Education

  • PhD in semiconductor optics at INSA-Lyon, 2013
  • MS in nanotechnology at St. Petersburg Academic University, 2010
  • BS in technical physics at St. Petersburg Politechnical University, 2008

Research

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Ballistic heat

Investigation of ballistic conduction of phonons and heat in semiconductors at nanoscale.

Thermoelectrics

Improving the thermoelectric performance of silicon-based devices using nanofabrication.

Ray phononics

In this project, I develop a new concept of heat manipulation based on particle properties of phonons"

Wave phononics

Theoretical and experimental studies of coherent heat conduction in phononic crystals.

Nanowire optics

My PhD project about optical properties of quantum dots is nanowires.

Publications

Nanoscale limit of the thermal conductivity in crystalline silicon carbide membranes, nanowires, and phononic crystals

We systematically measured thermal conductivity in SiC nanostructures, including nanomembranes, nanowires, and phononic crystals.

Review of thermal transport in phononic crystals

In this article, we review the phonon and thermal transport in one and two-dimensional phononic crystals

Ballistic heat conduction in semiconductor nanowires

In this Perspective article, we review the experimental demonstrations of this phenomenon in nanowires of various materials and sizes and at different temperatures.

Review of coherent phonon and heat transport control in one-dimensional phononic crystals at nanoscale

In this Research Update, we summarize the past decade of theoretical and experimental studies of coherent control of phonon and heat transport in one-dimensional phononic crystals.

Ray phononics: thermal guides, emitters, filters, and shields powered by ballistic phonon transport

We propose an alternative concept of heat manipulation called ray phononics. The concept is based on the particle picture of phonons and their ballistic transport.