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QuantumATK => General Questions and Answers => Topic started by: physics on July 25, 2024, 10:31

Title: Direction of current with increase in electrode temperature
Post by: physics on July 25, 2024, 10:31

Hello,

For a two probe heterostructure device, the direction of current change from positive to negative with increase in  left (or right) electrode temperature. What could be possible explanation?

Thank you

Title: Re: Direction of current with increase in electrode temperature
Post by: Anders Blom on July 29, 2024, 21:27

This is complex to discuss without specifics. The heterogeneous case is much more complex since there is charge redistribution even at zero bias to align the Fermi levels. There is a close analogy with the p-n junction in classical electronics, perhaps that concept helps you analyze your system.