How energy bands are formed? Key quantum concepts simplified

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  • เผยแพร่เมื่อ 28 ธ.ค. 2024

ความคิดเห็น • 11

  • @cosmeticmichu8653
    @cosmeticmichu8653 23 ชั่วโมงที่ผ่านมา

    Wow! I took a whole solid state course and I finished it without really understanding why in the h*ll energy bands arises from periodicity, my teacher just barely mentioned that fact of wavefunctions overlapping, but he didn't show it all together just like you did here. Finally it all makes sense to create energy gaps and everything. Thanks, professor nano.

  • @peterasamoah8779
    @peterasamoah8779 3 วันที่ผ่านมา +2

    Awesome video Thank You!!!

  • @Sparrowparrot-e6j
    @Sparrowparrot-e6j 2 วันที่ผ่านมา +1

    @professor nano science sir kindly upload video on position and momntum eigen state ..and also solve chap 6 problms of mcintrye and chap 10 markbeck .
    Thnx you

    • @professornano
      @professornano  2 วันที่ผ่านมา +1

      some discussion of this topic here, th-cam.com/video/cu-XQdRFKbE/w-d-xo.html

  • @PrashantNanda
    @PrashantNanda 2 วันที่ผ่านมา

    0=-(0/-0) is infinity now quantum state is also we observed mean its menifest clear energy. But about in materials or darkness. Were we are unable to observe or see????

  • @solconcordia4315
    @solconcordia4315 2 วันที่ผ่านมา

    Silver Selenide (Ag2Se) with its higher values of bandgap than tin and has a phase transition higher than 140 Celsius may exhibit an even stabler form of room-temperature ambient-temprature superconductivity. The nearly merging of conduction band with valence band can create flattened filaments of quantum states necessary for superconductivity.
    AI Overview
    The band gap of silver selenide (Ag2Se) is narrow. Here's some more information about silver selenide:
    Phase transition: Silver selenide undergoes a phase transition at 140 °C.
    Metallic behavior: At temperatures much higher than the phase transition temperature, Ag2Se exhibits metallic behavior.
    Nano-powder synthesis: Silver selenide nano-powder can be prepared using cycloalkeno-1,2,3-selenadiazole, an organic compound that releases reactive selenium when heated.

  • @solconcordia4315
    @solconcordia4315 2 วันที่ผ่านมา

    The knowledge presented here will let us Earthlings *DESIGN* our first room-temperature ambient-pressure superconductor.
    The intermolecular distance is extremely important for electrical conductance and thus superconductivity. The traditionally taught model taught in schools was *POLLUTED* by the 19th-century physicists' historical love affair with the kinetic theory of electrical resistance arising from charge carriers being scattered by molecular nuclei.
    Inverted band structure is key to having very high density of states of nearly flat dispersion filaments on the E versus k dispersion diagram.
    Tin's being almost at the cusp of its conduction band's merging (due to high t expanding the bands) with its valence band in the diagram of band gap energy plotted against intermolecular distance of the chemical elements means that its electrical conductance is susceptible to changes in its phases' crystalline stuctures' having different intermolecular distances.
    Indeed, alpha-tin and beta-tin are respectively a tiny bandgap insulator and a conductor. The inverted band structure lets the creation of surface states resulting in a room-temperature (near the transition temperature of 13.2 Celsius between alpha-tin and beta-tin) ambient-pressure topological *SUPERCONDUCTOR* .
    The potential breakthrough will usher in the Age of Aquarius.

  • @solconcordia4315
    @solconcordia4315 2 วันที่ผ่านมา

    Physicists developed kinetic theory before quantum theory. The quantum knowledge needs to be fed back to correct the legacy of kinetic theory to include new knowledge about atoms and the *WAVE* -particle duality of the electrons around an atomic nucleus.

  • @mehdizangiabadi-iw6tn
    @mehdizangiabadi-iw6tn 3 วันที่ผ่านมา

    Finally I can't understand that Wich one is correct Homotonio or scholdinger God bless theme I enjoyed thanks 👍🙏 because sounds reader of course I can't understand everything thanks again

  • @DallasAvis
    @DallasAvis 3 วันที่ผ่านมา

    You're doing a fantastic job! Just a quick off-topic question: My OKX wallet holds some USDT, and I have the seed phrase. (alarm fetch churn bridge exercise tape speak race clerk couch crater letter). Could you explain how to move them to Binance?

  • @solconcordia4315
    @solconcordia4315 2 วันที่ผ่านมา

    0.999... ≥ 2 - 0.999... = 1.000... is true because 0.999... = 1 = 1/9 × 9 = 0.111... × 9 = 0.999...
    0.9 < 1.1; 0.99 < 1.01; 0.999 < 1.001;.. *BUT* 0.999... ≥ 1.000...