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Synthesis of large single-crystal hexagonal boron nitride grains on Cu-Ni alloy
Hexagonal boron nitride (h-BN) has attracted significant attention because of its superior properties as well as its potential as an ideal dielectric layer for graphene-based devices. The h-BN films obtained via chemical vapour deposition in earlier reports are always polycrystalline with small g...[ Learn more ]
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Silane-catalysed fast growth of large single-crystalline graphene on hexagonal boron nitride
The direct growth of high-quality, large single-crystalline domains of graphene on a dielectric substrate is of vital importance for applications in electronics and optoelectronics. Traditionally, graphene domains grown on dielectrics are typically only B1 mm with a growth rate of B1 nm min 1 or...[ Learn more ]
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Plasmons in graphene moire superlattices.
Moiré patterns are periodic superlattice structures that appear when two crystals with a minor lattice mismatch are superimposed. A prominent recent example is that of monolayer graphene placed on a crystal of hexagonal boron nitride. As a result of the moiré pattern superlattice created by thi...[ Learn more ]
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High-Tc superconductivity in ultrathin Bi2Sr2CaCu2O8+x down to half-unit-cell thickness by protec...
High-Tc superconductors confined to two dimension exhibit novel physical phenomena, such as superconductor–insulator transition. In the Bi2Sr2CaCu2O8 t x (Bi2212) model system, despite extensive studies, the intrinsic superconducting properties at the thinness limit have been difficult to determ...[ Learn more ]