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Bright Quantum-Grade Fluorescent Nanodiamonds.
ACS Nano
December 2024
Department of Chemistry, Graduate School of Life, Environmental, Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
Optically accessible spin-active nanomaterials are promising as quantum nanosensors for probing biological samples. However, achieving bioimaging-level brightness and high-quality spin properties for these materials is challenging and hinders their application in quantum biosensing. Here, we demonstrate bright fluorescent nanodiamonds (NDs) containing 0.
View Article and Find Full Text PDFSignatures of a spin-active interface and a locally enhanced Zeeman field in a superconductor-chiral material heterostructure.
Sci Adv
August 2024
Department of Physics and Astronomy, University of California, Riverside, CA 92521, USA.
A localized Zeeman field, intensified at heterostructure interfaces, could play a crucial role in a broad area including spintronics and unconventional superconductors. Conventionally, the generation of a local Zeeman field is achieved through magnetic exchange coupling with a magnetic material. However, magnetic elements often introduce defects, which could weaken or destroy superconductivity.
View Article and Find Full Text PDFSpin-Active and Magnetic Polymers.
ACS Macro Lett
July 2024
Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju-gun, Jeonbuk 55324, Republic of Korea.
Solvent Controlled Generation of Spin Active Polarons in Two-Dimensional Material under UV Light Irradiation.
J Am Chem Soc
June 2024
Regional Centre of Advanced Technologies and Materials, The Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 27, Olomouc 779 00, Czech Republic.
Polarons belong to a class of extensively studied quasiparticles that have found applications spanning diverse fields, including charge transport, colossal magnetoresistance, thermoelectricity, (multi)ferroism, optoelectronics, and photovoltaics. It is notable, though, that their interaction with the local environment has been overlooked so far. We report an unexpected phenomenon of the solvent-induced generation of polaronic spin active states in a two-dimensional (2D) material fluorographene under UV light.
View Article and Find Full Text PDFRoom temperature optically detected magnetic resonance of single spins in GaN.
Nat Mater
April 2024
School of Applied and Engineering Physics, Cornell University, Ithaca, NY, USA.
High-contrast optically detected magnetic resonance is a valuable property for reading out the spin of isolated defect colour centres at room temperature. Spin-active single defect centres have been studied in wide bandgap materials including diamond, SiC and hexagonal boron nitride, each with associated advantages for applications. We report the discovery of optically detected magnetic resonance in two distinct species of bright, isolated defect centres hosted in GaN.
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