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Monolayer hexagonal boron nitride (hBN) is attracting considerable attention because of its potential applications in areas such as nano- and opto-electronics, quantum optics and nanomagnetism. However, the implementation of such functional hBN demands precise lateral nanostructuration and integration with other two-dimensional materials, and hence, novel routes of synthesis beyond exfoliation. Here, a disruptive approach is demonstrated, namely, imprinting the lateral pattern of an atomically stepped one-dimensional template into a hBN monolayer. Specifically, hBN is epitaxially grown on vicinal Rhodium (Rh) surfaces using a Rh curved crystal for a systematic exploration, which produces a periodically textured, nanostriped hBN carpet that coats Rh(111)-oriented terraces and lattice-matched Rh(337) facets with tunable width. The electronic structure reveals a nanoscale periodic modulation of the hBN atomic potential that leads to an effective lateral semiconductor multi-stripe. The potential of such atomically thin hBN heterostructure for future applications is discussed.
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http://dx.doi.org/10.1002/advs.202101455 | DOI Listing |
Inorg Chem
September 2025
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States.
A series of six quinary rare-earth sulfides CeEuNaSiS, CeEuKSiS, CeEuRbSiS, CeEuCsSiS, CeEuAgSiS, and CeEuCuSiS were obtained in an alkali iodide flux using the boron-chalcogen mixture (BCM) method. Single crystal X-ray diffraction was used to determine the structures of the high quality single crystals that were grown; their elemental compositions were confirmed by energy-dispersive spectroscopy (EDS). The compounds crystallize in the hexagonal crystal system in the noncentrosymmetric space group 6.
View Article and Find Full Text PDFNat Protoc
September 2025
Department of Physics, Technical University of Denmark, Kongens Lyngby, Denmark.
Scanning probe microscopy (SPM) is a powerful technique for mapping nanoscale surface properties through tip-sample interactions. Thermal scanning-probe lithography (tSPL) is an advanced SPM variant that uses a silicon tip on a heated cantilever to sculpt and measure the topography of polymer films with nanometer precision. The surfaces produced by tSPL-smooth topographic landscapes-allow mathematically defined contours to be fabricated on the nanoscale, enabling sophisticated functionalities for photonic, electronic, chemical and biological technologies.
View Article and Find Full Text PDFNano Lett
September 2025
Department of Physics, The Ohio State University, Columbus, Ohio 43210, United States.
Here, we present an all-electrical readout mechanism for quasi-0D quantum states (0D-QS), such as point defects, adatoms, and molecules, that is modular and general, providing an approach that is amenable to scaling and integration with other solid-state quantum technologies. Our approach relies on the creation of high-quality tunnel junctions via the mechanical exfoliation and stacking of multilayer graphene (MLG) and hexagonal boron nitride (hBN) to encapsulate the target system in an MLG/hBN/0D-QS/hBN/MLG heterostructure. This structure allows for all-electronic spectroscopy and readout of candidate systems through a combination of coulomb and spin-blockade.
View Article and Find Full Text PDFAdv Mater
September 2025
Beijing Graphene Institute, Beijing, 100095, P. R. China.
Potassium metal batteries are considered as promising candidates for next-generation energy storage systems. However, their practical development is hindered by the insufficient capacity output and persistent dendritic proliferation at the anode side. Here graphene-skinned hexagonal boron nitride powder is demonstrated synthesized via fluidized bed-chemical vapor deposition, realizing conformal growth of layer-controlled graphene (5-90 layers) over h-BN with atomically coupled heterointerfaces.
View Article and Find Full Text PDFRev Sci Instrum
September 2025
Department of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 08826, Republic of Korea.
We report the development of a variable-temperature Kelvin probe force microscopy (KPFM) system based on a Gifford-McMahon cryocooler, which enables stable and highly sensitive operation across a broad temperature range. The system integrates a custom-designed phase-locked loop, automatic gain control, and compact passive vibration isolation stages, effectively suppressing mechanical vibrations intrinsic to cryostats. We demonstrate the system's performance using a monolayer graphene (MLG) device encapsulated in hexagonal boron nitride, serving as a benchmark platform to validate spatial resolution and CPD sensitivity.
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