141 citations · 401 across the 12 of their papers we have counts for
13 papers
Complete Raman Tensor Determination in Birefringent -GaO by Single-Stage Hyperspectral Analysis of Polarization Angle-Resolved Raman Spectra
Hans Tornatzky, Jonas Rose, Moritz Meißner +5
The low symmetry of the monoclinic phase of GaO leads to pronounced optical anisotropy and, consequently, to birefringence, which strongly affects the Raman response. Becau…
Strain-Mediated Lattice Reconstruction Enhances Ferromagnetism in Cr2Ge2Te6/WTe2 van der Waals Heterobilayers
Franz Herling, Mireia Torres-Sala, Dorye L. Esteras +17
Van der Waals (vdW) heterostructures enable tailored electronic and magnetic phases by stacking atomically thin layers with pristine interfaces. Here, we investigate fully 2D Cr2Ge…
Microscopic Origin of Temperature-Dependent Anisotropic Heat Transport in Ultrawide-Bandgap Rutile GeO2
Pouria Emtenani, Marta Loletti, Felix Nippert +7
Ultrawide-bandgap rutile GeO2 is emerging as a promising semiconductor for power electronics, where efficient heat dissipation is essential to suppress self-heating and ensure devi…
Thermal conductivity and tunable thermal anisotropy of magnetic CrSBr monolayer
Marta Loletti, Alejandro Molina-Sánchez, Juan Sebastián Reparaz +2
We present first-principles calculations of the thermal conductivity, , of monolayer CrSBr, a van der Waals magnetic 2D material. We find a considerable thermal anisotropy…
Room-temperature anisotropic in-plane spin dynamics in graphene induced by PdSe proximity
Juan F. Sierra, Josef Světlík, Williams Savero Torres +8
Van der Waals heterostructures offer a versatile platform for tailoring electrical, magnetic, optical, and spin transport properties of materials through proximity effects. Notably…
In-plane thermal diffusivity determination using beam-offset frequency-domain thermoreflectance with a one-dimensional optical heat source
Kai Xu, Jiali Guo, Grazia Raciti +6
We present an innovative contactless method suitable to study in-plane thermal transport based on beam-offset frequency-domain thermoreflectance using a one-dimensional heat source…
Anisotropic Thermoreflectance Thermometry: A contactless frequency-domain approach to study anisotropic thermal transport
L. A. Perez, K. Xu, M. R. Wagner +6
We developed a novel contactless frequency-domain approach to study thermal transport, which is particularly convenient when thermally anisotropic materials are considered. The met…
Observation of second sound in a rapidly varying temperature field in Ge
Albert Beardo, Miquel López-Suárez, Luis Alberto Pérez +9
Second sound is known as the thermal transport regime where heat is carried by temperature waves. Its experimental observation was previously restricted to a small number of materi…
Thermal conductivity of MoS2 polycrystalline nanosheets
M. Sledzinska, B. Graczykowski, M. Placidi +8
We report a technique for transferring large areas of the CVD-grown, few-layer MoS2 from the original substrate to another arbitrary substrate and onto holey substrates, in order t…
Two-Dimensional Phononic Crystals: Disorder Matters
Markus R. Wagner, Bartlomiej Graczykowski, Juan Sebastian Reparaz +4
The design and fabrication of phononic crystals (PnCs) hold the key to control the propagation of heat and sound at the nanoscale. However, there is a lack of experimental studies…
Optical and mechanical properties of nanofibrillated cellulose: towards a robust platform for next-generation green technologies
Claudia D. Simao, Juan S. Reparaz, Markus. R. Wagner +8
Nanofibrillated cellulose, a polymer that can be obtained from one of the most abundant biopolymers in Nature, is being increasingly explored due to its outstanding properties for…
Effects of strain on the valence band structure and exciton-polariton energies in ZnO
Markus R. Wagner, Gordon Callsen, Juan S. Reparaz +6
The uniaxial stress dependence of the band structure and the exciton-polariton transitions in wurtzite ZnO is thoroughly studied using modern first-principles calculations based on…
A novel high resolution contactless technique for thermal field mapping and thermal conductivity determination: Two-Laser Raman Thermometry
J. S. Reparaz, E. Chavez-Angel, M. R. Wagner +4
We present a novel high resolution contactless technique for thermal conductivity determination and thermal field mapping based on creating a thermal distribution of phonons using…