ECE 656 Lecture 25: Phonon Scattering II

By Mark Lundstrom

Electrical and Computer Engineering, Purdue University, West Lafayette, IN

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Abstract

Outline:
  1. Review
    • phonons
    • electron-phonon coupling
  2. Energy-momentum conservation
  3. Mathematical formulation
  4. Example
  5. Summary

Cite this work

Researchers should cite this work as follows:

  • Mark Lundstrom (2011), "ECE 656 Lecture 25: Phonon Scattering II ," https://nanohub.org/resources/12456.

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Time

Location

EE 115, Purdue University, West Lafayette, IN

Tags

  1. Charge Transport
  2. course lecture
  3. electron-phonon scattering
  4. nanoelectronics
  5. nanotransistors
  6. phonons
  7. scattering
ECE 656 Lecture 25: Phonon Scattering II
  • ECE-656 Lecture 25: Phonon Scattering: II 1. ECE-656 Lecture 25: Phonon Sca… 0
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  • outline 2. outline 22.4
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  • phonons 3. phonons 35.966666666666669
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  • longitudinal and transverse phonons 4. longitudinal and transverse ph… 112.8
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  • real phonon dispersions 5. real phonon dispersions 190
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  • simplified phonon dispersions 6. simplified phonon dispersions 258.93333333333334
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  • electron-phonon coupling 7. electron-phonon coupling 365.8
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  • outline 8. outline 625.3
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  • which phonons scatter? 9. which phonons scatter? 653.7
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  • intravalley scattering 10. intravalley scattering 734.83333333333337
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  • maximum beta: ABS 11. maximum beta: ABS 873.86666666666667
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  • maximum beta: EMS 12. maximum beta: EMS 943.3
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  • maximum beta: acoustic phonons 13. maximum beta: acoustic phonons 1011.7666666666667
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  • maximum beta: acoustic phonons 14. maximum beta: acoustic phonons 1277.1
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  • optical phonons 15. optical phonons 1359.2333333333334
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  • re-cap 16. re-cap 1457.4
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  • outline 17. outline 1501.2333333333334
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  • transition rate 18. transition rate 1545.0666666666666
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  • energy-momentum conservation 19. energy-momentum conservation 1646.5666666666666
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  • phonon amplitude 20. phonon amplitude 1796.4
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  • recall: absorption vs. emission (L19) 21. recall: absorption vs. emissio… 2033.7
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  • final answer 22. final answer 2125.3
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  • scattering rate 23. scattering rate 2176.8666666666668
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  • scattering rate (ii) 24. scattering rate (ii) 2228.9
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  • scattering rate (iii) 25. scattering rate (iii) 2344.5333333333333
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  • momentum relaxation rate 26. momentum relaxation rate 2381.0666666666666
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  • momentum relaxation rate (ii) 27. momentum relaxation rate (ii) 2475.8
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  • outline 28. outline 2548.5666666666666
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  • momentum relaxation rate (ii) 29. momentum relaxation rate (ii) 2638.7
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