10 papers
Tuning of quantum nanoscaled friction within the Prandtl-Tomlinson model
Dai-Nam Le, Lilia M. Woods
Nanoscaled friction is a fundamental tribological phenomenon with complex behavior of its dynamical force. Here, we utilize the Prandtl-Tomlinson framework to investigate systemati…
Quantum stick-slip motion in nanoscaled friction
Dai-Nam Le, Pablo Rodriguez-Lopez, Lilia M. Woods
Friction in atomistic systems is usually described by the classical Prandtl-Tomlinson model suitable for capturing the dragging force of a nanoparticle in a periodic potential. Her…
Anisotropic two-dimensional magnetoexciton with exact center-of-mass separation
Dang-Khoa D. Le, Hoang-Viet Le, Dai-Nam Le +4
Excitons in anisotropic two-dimensional (2D) materials, defined by direction-dependent effective masses, are of pronounced interest for their roles in excitonic and magneto-optical…
Casimir interactions between two parallel graphene sheets carrying steady-state drift currents
Modi Ke, Dai-Nam Le, Lilia M. Woods
We investigate the fluctuation-induced Casimir interactions between two parallel graphene sheets carrying steady-state drift currents. The graphene properties are modeled based on…
Prediction of a measurable sign change in the Casimir force using a magnetic fluid
Long Ma, Larissa Inácio, Dai-Nam Le +2
We demonstrate quantum levitation controlled by Casimir forces acting between a polystyrene surface and a Teflon-coated metallic substrate immersed in a mixture of Toluene and magn…
Phononic Casimir Effect in Planar Materials
Pablo Rodriguez-Lopez, Dai-Nam Le, Lilia M. Woods
The Phononic Casimir effect between planar objects is investigated by deriving a formalism from the quantum partition function of the system following multiscattering approach. Thi…