Results 41 to 50 of about 15,196,329 (270)
Complex spectral evolution in a BCS superconductor, ZrB12 [PDF]
, 2013 We investigate the electronic structure of a complex conventional superconductor, ZrB12 employing high resolution photoemission spectroscopy and ab initio band structure calculations.
AF Efros +30 more
core +1 more source
Fermi Level Pinning at Electrical Metal Contacts of Monolayer Molybdenum Dichalcogenides.
ACS Nano, 2017 Electrical metal contacts to two-dimensional (2D) semiconducting transition metal dichalcogenides (TMDCs) are found to be the key bottleneck to the realization of high device performance due to strong Fermi level pinning and high contact resistances (Rc).
Changsik Kim +9 more
semanticscholar +1 more source
Sixfold fermion near the Fermi level in cubic PtBi2
SciPost Physics, 2021 We show that the cubic compound PtBi2, is a topological semimetal hosting a sixfold band touching point in close proximity to the Fermi level. Using angle-resolved photoemission spectroscopy, we map the bandstructure of the system, which is in good ...
S. Thirupathaiah, Y. S. Kushnirenk, K. Koepernik, B. R. Piening, B. Buechner, S. Aswartham, J. van den Brink, S. V. Borisenko, I. C. Fulga
doaj +1 more source
Regular and Singular Fermi Liquid fixed points in quantum impurity models [PDF]
Phys. Rev. B 72, 014430 (2005), 2004 We show that thermodynamics is insufficient to probe the nature of the low energy dynamics of quantum impurity models and a more subtle analysis based on scattering theory is required. Traditionally, quantum impurity models are classified into one of two categories: Fermi liquids and non-Fermi liquids, depending on the analytic properties of the ...
arxiv +1 more source
Van der Waals metal-semiconductor junction: Weak Fermi level pinning enables effective tuning of Schottky barrier [PDF]
Science Advances, 2016 The Schottky barrier for carrier injection into 2D semiconductors can be effectively tuned by using 2D metals. Two-dimensional (2D) semiconductors have shown great potential for electronic and optoelectronic applications.
Yuanyue Liu, P. Stradins, Suhuai Wei
semanticscholar +1 more source
Broadband terahertz metamaterial absorber based on graphene resonators with perfect absorption
Results in Physics, 2021 The applications of terahertz waves and metamaterials in electromagnetic wave absorbers are one of the key focus areas of current interdisciplinary scientific research.
Jun Zhu, Changsong Wu, Yihong Ren
doaj
Electronic and optical behaviour of lanthanum doped CaTiO3 perovskite
Materials Research Express, 2020 To improve the efficiency of perovskite based solar cells, doping of heavier elements in Perovskite materials (ABX _3 ) can modulate its electronic and optical properties significantly.
Muhammad Rizwan +9 more
doaj +1 more source
Investigation of Ti1-xMoxCoSb Semiconducting Solid Solution
Фізика і хімія твердого тіла, 2020 The effect of doping of the TiCoSb compound (MgAgAs structure type) by Mo atoms on the features of the structural characteristics and behavior of the electrokinetic, energetic and magnetic properties of the Ti1-xMoxCoSb semiconducting solid solution (х =
Yu. Stadnyk +6 more
doaj +1 more source
Tuning the van Hove singularities in AV$_{3}$Sb$_{5}$ (A = K, Rb, Cs) via pressure and doping [PDF]
Physical Review B 104 (20), 205129 (2021), 2021 We investigate the electronic structure of the new family of kagome metals AV$_{3}$Sb$_{5}$ (A = K, Rb, Cs) using first-principles calculations. We analyze systematically the evolution of the van Hove singularities (vHss) across the entire family upon applied pressure and hole doping, specifically focusing on the two vHss closer to the Fermi energy ...
arxiv +1 more source
Fermi level influence on the adsorption at semiconductor surfaces - ab initio simulations [PDF]
J. Appl. Phys. 114, 063507 (2013), 2013 Chemical adsorption of the species at semiconductor surfaces is analyzed showing the existence of the two contributions to adsorption energy: bond creation and charge transfer. It is shown that the energy of quantum surface states is affected by the electric field at the surface, nevertheless the potential contribution of electron and nuclei cancels ...
arxiv +1 more source