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Raman spectroscopy, a fast and nondestructive imaging method, can be used to monitor the doping level in graphene devices. We fabricated chemical vapor deposition (CVD) grown graphene on atomically flat hexagonal boron nitride (hBN) flakes…

Materials Science · Physics 2013-12-09 Kanokporn Chattrakun , Shengqiang Huang , K. Watanabe , T. Taniguchi , A. Sandhu , B. J. LeRoy

In this article, we have theoretically investigated the performance of graphene-hexagonal Boron Nitride hyper crystals to demonstrate all angle negative refraction.Hexagonal Boron Nitride, the latest natural hyperbolic material; can be a…

We present electronic transport measurements through short and narrow (30x30 nm) single layer graphene constrictions on a hexagonal boron nitride substrate. While the general observation of Coulomb-blockade is compatible with earlier work,…

Mesoscale and Nanoscale Physics · Physics 2015-01-30 Dominik Bischoff , Florian Libisch , Joachim Burgdörfer , Thomas Ihn , Klaus Ensslin

We have investigated low-frequency 1/f noise in the boron nitride - grapheme - boron nitride heterostructure field - effect transistors on Si/SiO2 substrates (f is a frequency). The device channel was implemented with a single layer…

Mesoscale and Nanoscale Physics · Physics 2015-08-11 Maxim A. Stolyarov , Guanxiong Liu , Sergey L. Rumyantsev , Michael Shur , Alexander A. Balandin

We study the interfacial thermal conductance of grain boundaries (GBs) between monolayer graphene and hexagonal boron nitride (h-BN) sheets using a combined atomistic approach. First, realistic samples containing graphene/h-BN GBs with…

Materials Science · Physics 2022-01-03 Haikuan Dong , Petri Hirvonen , Zheyong Fan , Ping Qian , Yanjing Su , Tapio Ala-Nissila

We present a transfer-free preparation method for graphene on hexagonal boron nitride (h-BN) crystals by chemical vapor deposition of graphene via a catalytic proximity effect, i.e. activated by a Cu catalyst close-by . We demonstrate the…

Two-dimensional (2D) transition metal dichalcogenides (TMDCs) are the subject of intense investigation for applications in optics, electronics, catalysis, and energy storage. Their optical and electronic properties can be significantly…

The interaction between a graphene layer and a hexagonal Boron Nitride (hBN) substrate induces lateral displacements and strains in the graphene layer. The displacements lead to the appearance of commensurate regions and the existence of an…

Mesoscale and Nanoscale Physics · Physics 2014-09-05 Pablo San-Jose , Ángel Gutiérrez , Mauricio Sturla , Francisco Guinea

We report on the fabrication and measurement of a graphene tunnel junction using hexagonal-boron nitride as a tunnel barrier between graphene and a metal gate. The tunneling behavior into graphene is altered by the interactions with phonons…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 F. Amet , J. R. Williams , A. G. F. Garcia , M. Yankowitz , K. Watanabe , T. Taniguchi , D. Goldhaber-Gordon

We propose monolayer epitaxial graphene and hexagonal boron nitride (h-BN) as ultimate thickness covalent spacers for magnetoresistive junctions. Using a first-principles approach, we investigate the structural, magnetic and spin transport…

Mesoscale and Nanoscale Physics · Physics 2009-07-24 Oleg V. Yazyev , Alfredo Pasquarello

We report on the fabrication and electrical characterisation of etched graphene single electron transistors (SETs) of various sizes on hexagonal boron nitride (hBN) in high magnetic fields. The electronic transport measurements show a…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 A. Epping , S. Engels , C. Volk , K. Watanabe , T. Taniguchi , S. Trellenkamp , C. Stampfer

We present first principles study of thermoelectric transport properties of sandwiched heterostructure of Graphene (G)/hexagonal Boron Nitride (BN)/G, based on Boltzmann transport theory for band electrons using the bandstructure calculated…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 Ransell D'Souza , Sugata Mukherjee

One of the most promising building blocks for the development of spin qubits, single-photon sources, and quantum sensors at room temperature, as well as 2D ultraviolet light-emitting diodes, are defect colour centres in 2D hexagonal boron…

Mesoscale and Nanoscale Physics · Physics 2025-03-13 M. K. Prasad , V. Babenko , A. W. Tadbier , S. Hofmann , J. P. Goss , J. D. Mar

Polymer composites with thermally conductive nanoscale filler particles, such as graphene and hexagonal boron nitride (h-BN), are promising for certain heat transfer applications. While graphene-polymer composites have been extensively…

Applied Physics · Physics 2017-12-04 Ruimin Ma , Xiao Wan , Teng Zhang , Nuo Yang , Tengfei Luo

Understanding water behaviour on 2D materials is crucial for sensing, microfluidics, and tribology. While water/graphene interactions are well studied, water on hexagonal boron nitride (h-BN) remains largely unexplored. Despite structural…

Mesoscale and Nanoscale Physics · Physics 2025-11-26 Philipp Seiler , Anthony Payne , Neubi F. Xavier , Louie Slocombe , Marco Sacchi , Anton Tamtögl

All local electronic properties of graphene on a hexagonal boron nitride (hBN) substrate exhibit spatial moir\'e patterns related to lattice constant and orientation differences between shared triangular Bravais lattices. We apply a…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Ashley M. DaSilva , Jeil Jung , Shaffique Adam , Allan H. MacDonald

We perform systematic first-principles calculations of the proximity exchange coupling, induced by cobalt (Co) and nickel (Ni) in graphene, via a few (up to three) layers of hexagonal boron nitride (hBN). We find that the induced spin…

Mesoscale and Nanoscale Physics · Physics 2016-10-26 Klaus Zollner , Martin Gmitra , Tobias Frank , Jaroslav Fabian

We present low-temperature Raman measurements on gate tunable graphene encapsulated in hexagonal boron nitride, which allows to study in detail the Raman G and 2D mode frequencies and line widths as function of the charge carrier density.…

Mesoscale and Nanoscale Physics · Physics 2023-02-15 Jens Sonntag , Kenji Watanabe , Takashi Taniguchi , Bernd Beschoten , Christoph Stampfer

Long-distance spin transport through anti-ferromagnetic insulators (AFMIs) is a long-standing goal of spintronics research. Unlike conventional spintronics systems, monolayer graphene in quantum Hall regime (QH) offers an unprecedented…

We use confocal Raman microscopy and modified vector analysis methods to investigate the nanoscale origin of strain and carrier concentration in exfoliated graphene-hexagonal boron nitride (hBN) heterostructures on silicon dioxide (SiO2).…