88 citations · 476 across the 22 of their papers we have counts for
8 papers · 1 filter
High-Resolution Scanning Tunneling Microscope and its Adaptation for Local Thermopower Measurements in 2D Materials
Jose D. Bermúdez-Perez, Edwin Herrera-Vasco, Javier Casas-Salgado +7
We present the design, fabrication and discuss the performance of a new combined high-resolution Scanning Tunneling and thermopower Microscope (STM/SThEM). We also describe the dev…
Room temperature multiferroicity in a transition metal dichalcogenide
G. Cardenas-Chirivi, K. Vega-Bustos, H. Rojas-Páez +8
The coexistence of multiple ferroic orders, i.e. multiferroicity, is a scarce property to be found in materials. Historically, this state has been found mainly in 3-dimensional com…
Direct observation of discommensurate charge density wave modulation in the quasi-1D Weyl semimetal candidate NbTe
J. A. Galvis, A. Fang, D. Jimenez-Guerrero +8
The transition-metal tetrachalcogenides are a model system to explore the conjunction of correlated electronic states such as charge density waves (CDW), with topological phases of…
A sharp increase in the density of states in PbTe approaching a saddle point in the band structure
P. Walmsley, D. M. Abrams, J. Straquadine +4
PbTe is a leading mid-range thermoelectric material with a that has been enhanced by, amongst other methods, band engineering. Here we present an experimental study of the Hal…
Coherent order parameter dynamics in SmTe
M. Trigo, P. Giraldo-Gallo, M. E. Kozina +13
We present a combined ultrafast optical pump-probe and ultrafast x-ray diffraction measurement of the CDW dynamics in SmTe at 300 K. The ultrafast x-ray diffraction measurement…
Charge density wave modulation and gap measurements in CeTe
Uros Ralevic, Nenad Lazarevic, Andreas Baum +7
We present a study of charge density wave (CDW) ordering in CeTe at room temperature using a scanning tunneling microscope and Raman spectroscopy. Two characteristic CDW orderi…
Fermi surface evolution of Na-doped PbTe studied through density functional theory calculations and Shubnikov-de Haas measurements
P. Giraldo-Gallo, B. Sangiorgio, P. Walmsley +5
We present a combined experimental and theoretical study of the evolution of the low-temperature Fermi surface of lead telluride, PbTe, when holes are introduced through sodium sub…
Classification of Collective Modes in a Charge Density Wave by Momentum-Dependent Modulation of the Electronic Band Structure
D. Leuenberger, J. A. Sobota, S. -L. Yang +7
We present time- and angle-resolved photoemission spectroscopy measurements on the charge density wave system CeTe. Optical excitation transiently populates the unoccupied ba…