Transverse ultrasound attenuation provides a weakly coupled probe of momentum current correlations in electronic systems. We develop a simple theory for the interpretation of transverse ultrasound attenuation coefficients in systems with nodal gap anisotropy. Applying this theory we show how ultrasound can delineate between extended-(Formula presented) and (Formula presented)-wave scenarios for the cuprate superconductors. © 1996 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review B - Condensed Matter and Materials Physics
Moreno, J., & Coleman, P. (1996). Ultrasound attenuation in gap-anisotropic systems. Physical Review B - Condensed Matter and Materials Physics, 53 (6), R2995-R2998. https://doi.org/10.1103/PhysRevB.53.R2995