64 citations · 146 across the 6 of their papers we have counts for
7 papers
Coherent Phonon Blocking in Superlattices
Anil Erol, Xiang Hua, Kirby Myers +9
At cryogenic temperatures, phonons become one of the dominant energy carriers and thus can strongly influence the performance of electronic and sensing devices. In this work, we pr…
Hydrogen-doping mediated solid state thermal switch
Ronald Warzoha, Brian Donovan, Yifei Sun +2
Recent reports reveal that isothermal chemical doping of hydrogen in correlated complex oxides such as perovskite nickelates (e.g. NdNiO3) can induce a metal-to-insulator transitio…
Low-Force Elastocaloric Refrigeration via Bending
Darin J. Sharar, Joshua Radice, Ronald Warzoha +2
Elastocaloric cooling has been identified as a promising alternative to high global warming potential vapor compression cooling. Two key bottlenecks to adoption are the need for bu…
A Numerical Fitting Routine for Frequency-domain Thermoreflectance Measurements of Nanoscale Material Systems having Arbitrary Geometries
Ronald J. Warzoha, Adam A. Wilson, Brian F. Donovan +6
In this work, we develop a numerical fitting routine to extract multiple thermal parameters using frequency-domain thermoreflectance (FDTR) for materials having non-standard, non-s…
Elimination of Extreme Boundary Scattering via Polymer Thermal Bridging in Silica Nanoparticle Packings: Implications for Thermal Management
Brian F. Donovan, Ronald J. Warzoha, R. Bharath Venkatesh +3
Recent advances in our understanding of thermal transport in nanocrystalline systems are responsible for the integration of new technologies into advanced energy systems, including…
A Theoretical Paradigm for Thermal Rectification via Phonon Filtering and Energy Carrier Confinement
Brian F. Donovan, Ronald J. Warzoha
We provide a theoretical framework for the development of a solid-state thermal rectifier through a confinement in the available population of phonons on one side of an asymmetrica…