Abstract
The transport properties of hexagonal boron–nitride nanoribbons under the uniaxial strain are investigated by the Green's function method. We find that the transport properties of armchair boron–nitride nanoribbon strongly depend on the strain. In particular, the features of the conductance steps such as position and width are significantly changed by strain. As a strong tensile strain is exerted on the nanoribbon, the highest conductance step disappears and subsequently a dip emerges instead. The energy band structure and the local current density of armchair boron–nitride nanoribbon under strain are calculated and analysed in detail to explain these characteristics. In addition, the effect of strain on the conductance of zigzag boron–nitride nanoribbon is weaker than that of armchair boron nitride nanoribbon.
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