Band structure of energy levels in solids

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  • Опубліковано 4 гру 2024

КОМЕНТАРІ • 8

  • @thinkofparis
    @thinkofparis 9 років тому +6

    You absolutely cleared this up for me. I cant say thank you enough. This was a huge help. This topics are not easy to teach to non physics majors.

  • @kinchiuho520
    @kinchiuho520 10 років тому +2

    Thanks for this excellent video ,I almost totally understand this topic.
    but i have a question that what is the physical meaning of n in K=2(pi)n/Na, Does n means the state?
    Because I know that the horizontal axis (from the graph at 23:00) is related to the energy ,but what is related to the vertical axis.
    Mathematically , it shows that there are no solution for the cos(Ka) within =+-1 from some Z1 to Z2. Can I take this as there are no energy state in between E1 and E2 ( Where Z1=K1 a & (K1)^2=2mE1/h^2 ) .
    It will be my pleasure if you answer this question .Again,your videos are awesome and I like the way you explain things. It helps me a lot in physics.Thank you.

  • @madisonhoward6004
    @madisonhoward6004 3 роки тому

    Hi Dr. Carlson! Thank you so much for the videos! Can you please do videos on Chapter 6 of Introduction to Quantum Mechanics by Griffiths?

  • @YossiSirote
    @YossiSirote Рік тому

    Good video. However, formula at 15:09 (and rest of vid) is confusing as you are using K and k to mean two different periodic things.

  • @kirtikantsahu3025
    @kirtikantsahu3025 11 років тому

    great lecture

  • @mamogamers3147
    @mamogamers3147 5 років тому

    This is gold

  • @aubreyhoward2673
    @aubreyhoward2673 3 роки тому

    Can you please do chapter 6 (Symmetries and Conservation Laws) from this book? I am really struggling with selection rules for vector operators. Or does anyone know any resources that may cover this chapter for this book? (Griffiths' Introduction to Quantum Mechanics)

  • @dylanbeard9770
    @dylanbeard9770 8 років тому

    Don't insulators have completely full/completely empty energy bands? You made it sound like they are partially filled