55 citations · 148 across the 11 of their papers we have counts for
11 papers
Experimental Confirmation of First-Principles Thermal Conductivity in Zirconium-Doped ThO
Ella Kartika Pek, Zilong Hua, Amey Khanolkar +7
The degradation of thermal conductivity in advanced nuclear fuels due to the accumulation of fission products and irradiation-induced defects is inevitable, and must be considered…
Optical pulse induced ultrafast antiferrodistortive transition in SrTiO3
Saqeeb Adnan, Amey Khanolkar, Shuxiang Zhou +2
The ultrafast dynamics of the antiferrodistortive (AFD) phase transition in perovskite SrTiO3 is monitored via time-domain Brillouin scattering. Using femtosecond optical pulses, w…
Thermal conductivity suppression in uranium-doped thorium dioxide due to phonon resonant scattering
Zilong Hua, Saqeeb Adnan, Amey R. Khanolkar +7
In this work, the thermal transport properties of thorium dioxide (ThO, thoria) with low levels of substitutional uranium (U) doping are explored. We observe strong indications…
Temperature-dependent elastic constants of thorium dioxide probed using time-domain Brillouin scattering
Amey Khanolkar, Yuzhou Wang, Cody A. Dennett +4
We report the adiabatic elastic constants of single-crystal thorium dioxide over a temperature range of 77 - 350 K. Time-domain Brillouin scattering (TDBS), an all-optical, non-con…
The generalized quasiharmonic approximation via space group irreducible derivatives
Mark A. Mathis, Amey Khanolkar, Lyuwen Fu +9
The quasiharmonic approximation (QHA) is the simplest nontrivial approximation for interacting phonons under constant pressure, bringing the effects of anharmonicity into temperatu…
Validating First-Principles Phonon Lifetimes via Inelastic Neutron Scattering
Enda Xiao, Hao Ma, Matthew S. Bryan +10
Phonon lifetimes are a key component of quasiparticle theories of transport, yet first-principles lifetimes are rarely directly compared to inelastic neutron scattering (INS) resul…
Growing Phenotype-controlled Phononic Materials from Plant Cells Scaffolds
Maroun Abi Ghanem, Liliane Khoryati, Reza Behrou +5
Biological composites offer self-healing properties, biocompatibility, high responsivity to external stimuli, and multifunctionality, due, in part, to their complex, hierarchical m…
Longitudinal Eigenvibration of Multilayer Colloidal Crystals and the Effect of Nanoscale Contact Bridges
Maroun Abi Ghanem, Amey Khanolkar, Samuel P. Wallen +5
Longitudinal contact-based vibrations of colloidal crystals with a controlled layer thickness are studied. These crystals consist of 390 nm diameter polystyrene spheres arranged in…
Laser-Induced Spallation of Microsphere Monolayers
Morgan Hiraiwa, Melicent Stossel, Amey Khanolkar +2
The detachment of a semi-ordered monolayer of polystyrene microspheres adhered to an aluminum-coated glass substrate is studied using a laser-induced spallation technique. The micr…
Complex contact-based dynamics of microsphere monolayers revealed by resonant attenuation of surface acoustic waves
Morgan Hiraiwa, Maroun Abi Ghanem, Samuel P. Wallen +3
Contact-based vibrations play a critical role in the dynamics of granular materials. Significant insights into vibrational granular dynamics have been obtained with reduced-dimensi…
A Self-Assembled Metamaterial for Lamb Waves
Amey Khanolkar, Samuel Wallen, Maroun Abi Ghanem +3
We report the design and characterization of a self-assembled, locally resonant acoustic metamaterial for Lamb waves, composed of a monolayer of m polystyrene microsphere…