Improved recursive Green’s function formalism

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In his most recent publication “Improved recursive Green’s function formalism for quasi one-dimensional systems with realistic defects” Fabian shows a significant speedup of his  recursive Green’s function formalism [bibcite key=teichert2017improved]. Based on that, the conductivity of carbon nano tubes can be computed much faster. This allows to compute tubes of realistic size with a huge number of defects.  Continue reading

Empirical transport model of strained CNT transistors used for sensor applications

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cnt_psCarbon nanotubes show electronic properties which are remarkably sensitive to mechanical strain. Thus, CNTs are expected to be promising candidates for nano scale strain sensors.  Even more, they are discussed as a key component of future nano-opto-electro-mechanical systems (NOEMS).

Consequently, a comprehensive model for strained CNT transistors was recently published by Christian [bibcite key=wagner2016empirical]. Continue reading

Strong localization in defective carbon nanotubes: a recursive Greenʼs function study

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The paper by Fabian appeared recently in New Journal of Physics [bibcite key=teichert2014strong]. Based on a very efficient linearly scaling algorithm Fabian was able to calculate the electron transport in defective CNTs of realistic size, i.e. up to a length of microns. Continue reading

Metallic carbon nanotubes with metal contacts: electronic structure and transport

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Andreas managed to publish the main results of his PhD-thesis in a nanotechnology paper.[bibcite key=zienert2014metallic] The paper deals with the contact properties of metallic carbon nanotubes to several metals, which are of relevance for future carbon electronics. Continue reading