Recent content by asifmumtaz

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    Graduate Band Gap Formation: Bragg Reflection & Standing Waves

    i tried best to clear my question, band gap in solids arises due to lattice potential.this lattice potential has max. effect at zone boundary.band gap is produced at zone boundary due to bragg reflection of traveling wave.after reflection it becomes standing wave instead of traveling wave?howz...
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    Graduate Solving KET-BRA Notation in OPW Solid State Physics

    im studing orthogonalized plane wave method(OPW) IN SOLID STATE PHYSICS. during derivation ,i have difficulty.my question is , is a KET-BRA notation acts like an operator? i.e. Ia><bI .please help
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    Graduate Band Gap Formation: Bragg Reflection & Standing Waves

    band gap arises due to lattice potential.band gap is produced at zone boundary due to bragg reflection.there it behaves like standing wave instead of traveling wave?further formation of 2 standing waves?please help
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    Graduate What is a Bragg Point in the Context of BEC of Triplet States?

    same confusion here