Publications by authors named "A E Llacsahuanga Allcca"
Article Synopsis
- Van der Waals (vdW) magnet heterostructures provide a new way to investigate unique magnetic behaviors and quantum effects.
- This study focuses on layered antiferromagnets CrI and CrCl, which have different magnetic properties due to their structures, leading to interesting interactions at their interface.
- The research shows that applying an electric field can control the magnetic properties significantly, paving the way for developing advanced spintronic devices.
Electron spins in van der Waals materials are playing a crucial role in recent advances in condensed-matter physics and spintronics. However, nuclear spins in van der Waals materials remain an unexplored quantum resource. Here we report optical polarization and coherent control of nuclear spins in a van der Waals material at room temperature.
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- Graphene photodetectors have outstanding features like compact size, broad detection range, and fast response, but their practicality is limited by low optical absorption and responsivity.
- Efforts to improve light-graphene interaction through plasmonic structures are promising, but controlling electrical junctions is also crucial for enhancing photoresponsivity.
- A new device design integrates a gap plasmon structure and split gates to boost both light absorption and electrical output, leading to a 25-fold increase in photocurrent, showcasing its potential for real-world applications.
We report an endogenous photoelectric biomolecule and demonstrate that such a biomolecule can be used to detect visible light. We identify the green pigment abundantly present in natural silk cocoons of Antheraea yamamai (Japanese oak silkmoth) as biliverdin, using mass spectroscopy and optical spectroscopy. Biliverdin extracted from the green silk cocoons generates photocurrent upon light illumination with distinct colors.
View Article and Find Full Text PDFAtom-like defects in two-dimensional (2D) hexagonal boron nitride (hBN) have recently emerged as a promising platform for quantum information science. Here, we investigate single-photon emissions from atomic defects in boron nitride nanotubes (BNNTs). We demonstrate the first, to the best of our knowledge, optical modulation of the quantum emission from BNNTs with a near-infrared laser.
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