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6 papers · 2 filters
Coherent population trapping combined with cycling transitions for quantum dot hole spins using triplet trion states
Samuel G. Carter, Stefan C. Badescu, Allan S. Bracker +4
Optical spin rotations and cycling transitions for measurement are normally incompatible in quantum dots, presenting a fundamental problem for quantum information applications. Her…
Direct high resolution resonant Raman scattering measurements of InAs quantum dot dynamic nuclear spin polarization states
Aaron M. Ross, Allan S. Bracker, Michael K. Yakes +3
We report on the direct measurement of the electron spin splitting and the accompanying nuclear Overhauser (OH) field, and thus the underlying nuclear spin polarization (NSP) and f…
Moiré and beyond in transition metal dichalcogenide twisted bilayers
Kha Tran, Junho Choi, Akshay Singh
Fabricating van der Waals (vdW) bilayer heterostructures (BL-HS) by stacking the same or different two-dimensional (2D) layers, offers a unique physical system with rich electronic…
Circular dichroism in non-chiral metal halide perovskites
Peter C. Sercel, Zeev Valy Vardeny, Alexander L. Efros
We demonstrate theoretically that non-chiral perovskite layers can exhibit circular dichroism (CD) in the absence of a magnetic field and without chiral activation by chiral molecu…
Magnesium-intercalated graphene on SiC: highly n-doped air-stable bilayer graphene at extreme displacement fields
Antonija Grubišić-Čabo, Jimmy C. Kotsakidis, Yuefeng Yin +12
We use angle-resolved photoemission spectroscopy to investigate the electronic structure of bilayer graphene at high n-doping and extreme displacement fields, created by intercalat…
Spectral broadening of optical transitions at tunneling resonances in InAs/GaAs coupled quantum dot pairs
P. Kumar, C. Jennings, M. Scheibner +3
We report on linewidth analysis of optical transitions in InAs/GaAs coupled quantum dots as a function of bias voltage, temperature, and tunnel coupling strength. A significant lin…