Author Topic: Extraction of Tight Binding hamiltonian from ATK ???  (Read 4346 times)

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Offline ams_nanolab

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How can I see the tight binding Hamiltonian elements for a particular system (say Bi2Te3 quintuple or MoS2 monolayer) from ATK??  ???

Offline Anders Blom

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Re: Extraction of Tight Binding hamiltonian from ATK ???
« Reply #1 on: July 25, 2012, 12:04 »
I'm not sure what you are looking for. Do you want the Hamiltonian used in ATK, or you want to fit a tight-binding model for these materials? The first is possible, although if you are using a tight-binding model then you basically already know what the Hamiltonian is, because it's defined by the model. The second is a big task, and nothing you just obtain just like that.

Offline ams_nanolab

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Re: Extraction of Tight Binding hamiltonian from ATK ???
« Reply #2 on: September 11, 2012, 07:26 »
I want to get the elements of the TB Hamiltonian that ATK uses, with it I am looking to do NEGF calculations. How to save the Hamiltonian matrix from ATK???

Offline kstokbro

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