Summary
In this chapter, we first briefly review some phenomenological observations of superconductivity and discuss a phenomenological theory by London. Then we introduce ideas of electron–phonon interaction and Cooper pairing to discuss microscopic theory by Bardeen, Cooper, and Schrieffer. The BCS ground state and excited states are discussed through Bogoliubov–Valatin transformation, and condensation energy and thermodynamic behavior of the superconducting energy gap are analyzed. Finally type I and type II superconductors are compared in terms of coherence length and London penetration depth.
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© 2009 Springer-Verlag Berlin Heidelberg
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Quinn, J.J., Yi, KS. (2009). Superconductivity. In: Solid State Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-92231-5_15
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DOI: https://doi.org/10.1007/978-3-540-92231-5_15
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-92230-8
Online ISBN: 978-3-540-92231-5
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