Kinks in the dispersion relations of these entities due to rigid shifts of the Fermi sphere are Kohn anomalies. Real momentum and crystal momentum are shown to be separately conserved quantities in processes where these entities scatter off each other termed (*) Umklapp. Coupling of electrons with these entities forms Coope
Kinks in the dispersion relations of these entities due to rigid shifts of the Fermi sphere are Kohn anomalies. Real momentum and crystal momentum are shown to be separately conserved quantities in processes where these entities scatter off each other termed (*) Umklapp. Coupling of electrons with these entities forms Cooper pairs. The Debye model predicts that heat capacity depends on temperature cubed by considering a lattice populated by these quasiparticles. For 10 points, name these quantized lattice vibrations.
Kinks in the dispersion relations of these entities due to rigid shifts of the Fermi sphere are Kohn anomalies.