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Band Structure Of YBCO

Band Structure Of YBCO. Crystal Structure of YBCO. Band Structure of YBCO using LDA method. Breaking down of the band structure (LMTO). Band structure for Kz = 0 along the triangle ( K x a/ π , K y b/ π ). K y. π /b. π /a. K x. Consider only Cu – d and O – p orbital

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Band Structure Of YBCO

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  1. Band Structure Of YBCO

  2. Crystal Structure of YBCO

  3. Band Structure of YBCO using LDA method

  4. Breaking down of the band structure (LMTO)

  5. Band structure for Kz = 0 along the triangle ( Kx a/ π, Ky b/ π) Ky π/b π/a Kx • Consider only Cu – d and O – p orbital • Band structure consisting: anti-bonding pdσ chain • anti-bonding pdσ even chain • anti-bonding pdσ odd chain

  6. Band structure for Kz = π/c along the triangle ( Kx a/ π, Ky b/π)

  7. c, e, g, i : considering odd linear combinations. • d, f, h, j : considering even linear combinations. • e, f : removing the interaction of Cu zx and • Cu zy and O z orbital. • i, j : removing Cu zx and Cu zy and • retained only the O z orbital.

  8. Conclusion • Most important plane in YBCO is CuO plane near to Y.( no band gap)

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