Roman Anufriev

Roman Anufriev

CNRS researcher

Biography

I graduated from the Nanotechnology faculty of St. Petersburg Academic University and moved to France, where I did my Ph.D. on optical properties of semiconductor nanowires at INSA-Lyon. Since 2014, I have been working on thermal physics, first as a postdoc in Nomura group and later project associate professor at the University of Tokyo. In 2022, I passed the contest to enter The French National Centre for Scientific Research (CNRS), and presently, I work as a CNRS researcher at LIMMS, 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.

Projects

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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.

Polaritonics

Theoretical and experimental studies of surface phonon-polaritons

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

Ultrahigh-temperature vacuum prober for electrical and thermal measurements

We develop an ultrahigh-temperature vacuum probe station (UHT-VPS) featuring a sample holder heated by thermal radiation from a silicon carbide heater.
Laurent Jalabert, Jose Ordonez-Miranda, Yunhui Wu, Byunggi Kim, Roman Anufriev, Masahiro Nomura, Sebastian Volz
Review of Scientific Instruments 96, 085207 (2025).
Link

Hypersonic acoustic wave control via stealthy hyperuniform phononic nanostructures

We experimentally demonstrate surface acoustic wave control using a hyperuniform arrangement of gold nanopillars on a lithium niobate layer.
Michele Diego, Jade Hardouin, Gabrielle Mazevet-Schargrod, Matteo Pirro, Byunggi Kim, Roman Anufriev, Masahiro Nomura
Science Advances 11, eadw7205 (2025).
Project Link

Far-field heat transfer maximization through controlled polariton coupling between deep-subwavelength polar membranes

We demonstrate the existence of a maximum for the enhancement of the far-field heat transfer between deep-subwavelength membranes of SiC
Jose Ordonez-Miranda, Roman Anufriev, Maelie Coral, Masahiro Nomura, Sebastian Volz
Physical Review B 111, 195435 (2025).
Project Link

Phonon dispersion of nanoscale honeycomb phononic crystal: gigahertz and terahertz spectroscopy comparison

In this work, we experimentally investigate the behavior of a honeycomb silicon phononic crystal in the gigahertz range, where the continuum approximation holds, and in the terahertz range, where the phonon wavelengths are comparable to interatomic distances.
Michele Diego, Roman Anufriev, Ryoto Yanagisawa, Masahiro Nomura
The European Physical Journal Plus Plus 139, 1032 (2024).
Project Link
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