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Getting Started

  • About the nextnano Software
  • Downloads
  • Installation
  • License Activation

nextnano Tools

  • 1. nextnanomat
  • 2. nextnano++
  • 3. nextnano³
  • 4. nextnano.NEGF
    • 4.1. Overview
    • 4.2. Models
    • 4.3. Material Database
    • 4.4. Tutorials
    • 4.5. Keywords
    • 4.6. Input Syntax
    • 4.7. Simulation Output
    • 4.8. Command Line
    • 4.9. Release Notes
    • 4.10. FAQs
    • 4.11. Release Notes (Classic)
    • 4.12. FAQs (Classic)
      • Features and Functionalities
      • Error Messages
      • Problems and Limitations
  • 5. nextnano.MSB
  • 6. nextnanopy
  • 7. nextnanoevo

Cloud Computing

  • HTCondor

Support

  • Support Ticket System
  • Preparing Support Request
  • Frequently Asked Questions (FAQ)

References

  • Books
  • Theses
  • Journal Papers

Old Sites

  • Old Sites
nextnano Documentation
  • 4. nextnano.NEGF
  • 4.12. FAQs (Classic)
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4.12. FAQs (Classic)

  • Features and Functionalities
    • Can you recommend some reading material on the background of the NEGF method?
    • What is the difference between the “RealSpaceModes” and “Wannier-Stark_levels”?
    • What are the meanings of “Check G lesser = …” and “Check spectral function = …” in the log file?
  • Error Messages
    • Licensing.dll not loaded
  • Problems and Limitations
    • How much memory do I need?
    • My results do not agree with experiment.
    • Why does the current density vary at different places? Current does not seem to be conserved.
    • In the gain spectra, the energy grid is not as expected from the input nn.NEGF_Gain{ dEPhot }/nn.NEGF_Gain{ dEPhotSelfConsistent }.
    • The simulation results contain the Gain folder but it is empty.


Last update: 30/10/2024

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