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6 papers · 1 filter
Impact of disorder on the optoelectronic properties of GaNAsBi alloys and heterostructures
Muhammad Usman, Christopher A. Broderick, Eoin P. O'Reilly
We perform a systematic theoretical analysis of the nature and importance of alloy disorder effects on the electronic and optical properties of GaNAsBi alloys…
Strain-induced effects on band-to-band tunnelling and trap-assisted tunnelling in Si examined by experiment and theory
Felipe Murphy-Armando, Chang Liu, Yi Zhao +1
Strain is commonly used in metal-oxide-semiconductor technologies to boost on-state performance. This booster has been in production for at least a decade. Despite this, a systemat…
Direct Measurement of Anharmonic Decay Channels of a Coherent Phonon
Samuel W. Teitelbaum, Tom Henighan, Yijing Huang +12
We observe anharmonic decay of the photoexcited coherent A1g phonon in bismuth to points in the Brillouin zone where conservation of momentum and energy are satisfied for three-pho…
Common Glass-Forming Spin-Liquid State in the Pyrochlore Magnets DyTiO and HoTiO
Azar B. Eyvazov, Ritika Dusad, Timothy J. S. Munsie +5
Despite a well-ordered pyrochlore crystal structure and strong magnetic interactions between the Dy or Ho ions, no long range magnetic order has been detected in the…
Excitonic lasing of strain-free InP(As) quantum dots in AlInAs microdisk
D. V. Lebedev, M. M. Kulagina, S. I. Troshkov +13
Formation, emission and lasing properties of strain-free InP(As)/AlInAs quantum dots (QDs) embedded in AlInAs microdisk (MD) cavity were investigated using transmission electron mi…
Monolithic InGaAs nanowire array lasers on silicon-on-insulator operating at room temperature
Hyunseok Kim, Wook-Jae Lee, Alan C. Farrell +2
Chip-scale integrated light sources are a crucial component in a broad range of photonics applications. III-V semiconductor nanowire emitters have gained attention as a fascinating…