Extreme longitudinal thermal conductivity and non-diffusive heat transport in isotopic hBN

Researchers from C2N and collaborators at Neel lab., MPQ lab, L2C lab. and Kansas university report record thermal transport properties in isotopically purified hexagonal boron nitride (hBN), a two-dimensional insulating material of major interest for thermal dissipation and thermal anisotropy. By combining microfabricated suspended devices with Raman thermometry (Fig a and b), the team demonstrates an in-plane thermal conductivity exceeding 1650 W·m⁻¹·K⁻¹ at room temperature, among the highest values …

Delphine Marris-Morini, Professor at Université Paris-Saclay and C2N, awarded the CNRS 2026 Silver Medal.

Delphine Marris-Morini is a Professor at Paris Saclay University since 2015. Her research interests at the Center for Nanosciences and Nanotechnologies covered first high speed and efficient silicon photonics devices for telecom applications. Since 2009 she developed a new route towards efficient on-chip optical links based on Ge/SiGe quantum wells structures. She then shifted her research activity towards mid-IR range based on SiGe photonics circuits that she developed during …