87 citations · 278 across the 10 of their papers we have counts for
9 papers
Band structure of Bi surfaces formed on Bi2Se3 upon exposure to air
Alexandre Gauthier, Jonathan A. Sobota, Nicolas Gauthier +3
BiSe has been the focus of intense interest over the past decade due to its topological properties. Bi surfaces are known to form on BiSe upon exposure to atmospher…
Expanding the momentum field of view in angle-resolved photoemission systems with hemispherical analyzers
Nicolas Gauthier, Jonathan A. Sobota, Heike Pfau +6
In photoelectron spectroscopy, the measured electron momentum range is intrinsically related to the excitation photon energy. Low photon energies eV are commonly encountered…
Tuning time and energy resolution in time-resolved photoemission spectroscopy with nonlinear crystals
Alexandre Gauthier, Jonathan A. Sobota, Nicolas Gauthier +5
Time- and angle-resolved photoemission spectroscopy is a powerful probe of electronic band structures out of equilibrium. Tuning time and energy resolution to suit a particular sci…
Low work function in the 122-family of iron-based superconductors
H. Pfau, H. Soifer, J. A. Sobota +8
We determine the work functions of the iron arsenic compounds FeAs () using photoemission spectroscopy to be 2.7 eV for CaFeAs, 1.8 eV for…
Band resolved imaging of photocurrent in a topological insulator
Hadas Soifer, Alexandre Gauthier, Alexander F. Kemper +8
We study the microscopic origins of photocurrent generation in the topological insulator BiSe via time- and angle-resolved photoemission spectroscopy. We image the unoccupi…
3D nature of ZrTe band structure measured by high-momentum-resolution photoemission spectroscopy
H. Xiong, J. A. Sobota, S. -L. Yang +10
We have performed a systematic high-momentum-resolution photoemission study on ZrTe using eV photon energy. We have measured the band structure near the point, and quan…
Development and Evaluation of a Tutorial to Improve Students' Understanding of a Lock-in amplifier
Seth DeVore, Alexandre Gauthier, Jeremy Levy +1
A lock-in amplifier is a versatile instrument frequently used in physics research. However, many students struggle with the basic operating principles of a lock-in amplifier which…
Improving Students' Understanding of Lock-In Amplifiers
Seth DeVore, Alexandre Gauthier, Jeremy Levy +1
The lock-in amplifier is a versatile instrument frequently used in physics research. However, many students struggle with the basic operating principles of a lock-in amplifier whic…
Improving Students' Understanding of Lock-in Amplifiers
Seth DeVore, Alexandre Gauthier, Jeremy Levy +1
A lock-in amplifier is a versatile instrument frequently used in physics research. However, many students struggle with the basic operating principles of a lock-in amplifier which…