149 citations · 731 across the 17 of their papers we have counts for
4 papers · 1 filter
Topological descriptor of thermal conductivity in amorphous materials
Emi Minamitani, Takuma Shiga, Makoto Kashiwagi +1
Quantifying the correlation between the complex structures of amorphous materials and their physical properties has been a long-standing problem in materials science. In amorphous…
Surface phonons limit heat conduction in thin films
Michimasa Morita, Takuma Shiga
Understanding microscopic heat conduction in thin films is important for nano/micro heat transfer and thermal management for advanced electronics. As the thickness of thin films is…
Designing nanostructures for interfacial phonon transport via Bayesian optimization
Shenghong Ju, Takuma Shiga, Lei Feng +3
We demonstrate optimization of thermal conductance across nanostructures by developing a method combining atomistic Green's function and Bayesian optimization. With an aim to minim…
Microscopic mechanism of low thermal conductivity in lead-telluride
Takuma Shiga, Junichiro Shiomi, Jie Ma +5
The microscopic physics behind low lattice thermal conductivity of single crystal rocksalt lead telluride (PbTe) is investigated. Mode-dependent phonon (normal and umklapp) scatter…