208 citations · 772 across the 19 of their papers we have counts for
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Nanoscale laser flash measurements of diffuson transport in amorphous Ge and Si
Wanyue Peng, Richard Wilson
The thermal properties of amorphous materials have attracted significant attention due to their technological importance in electronic devices. Additionally, the disorder-induced b…
Thermal Model for Time-Domain Thermoreflectance Experiments in a Laser Flash Geometry
Wanyue Peng, Richard Wilson
Time-domain thermoreflectance (TDTR) is a well-established pump/probe method for measuring thermal conductivity and interface conductance of multilayers. Interpreting signals in a…
Thermal Conductivity of BAs under Pressure
Songrui Hou, Bo Sun, Fei Tian +7
The thermal conductivity of boron arsenide (BAs) is believed to be influenced by phonon scattering selection rules due to its special phonon dispersion. Compression of BAs leads to…
Magneto-optical Kerr spectra of gold induced by spin accumulation
Víctor H. Ortiz, Sinisa Coh, Richard B. Wilson
We report the magneto optic Kerr effect (MOKE) angle of Au magnetically excited by spin accumulation. We perform time resolved polar MOKE measurements on Au/Co heterostructures. In…
Electron-Phonon Scattering governs both Ultrafast and Precessional Magnetization Dynamics in Co-Fe Alloys
Ramya Mohan, Victor H. Ortiz, Luat Vuong +2
Recent investigations have advanced the understanding of how structure-property relationships in ferromagnetic metal alloys affect the magnetization dynamics on nanosecond time-sca…
Ultrafast Measurements of the Interfacial Spin Seebeck Effect in Au and Rare-Earth Iron Garnet Bilayers
Victor H. Ortiz, Michael J. Gomez, Yawen Liu +3
We investigate picosecond spin-currents across Au/iron-garnet interfaces in response to ultrafast laser heating of the electrons in the Au film. In the picoseconds after optical he…
Differentiating Contributions of Electrons and Phonons to the Thermoreflectance Spectra of Gold
Kexin Liu, Xinping Shi, Frank Angeles +4
To better understand the many effects of temperature on the optical properties of metals, we experimentally and theoretically quantify the electron vs. phonon contributions to the…
Electric field control of phonon angular momentum in perovskite BaTiO
Kevin Moseni, Richard B Wilson, Sinisa Coh
We find that in BaTiO the phonon angular momentum is dominantly pointing in directions perpendicular to the electrical polarization. Therefore, external electric field in ferro…