Origin of the longitudinal-ultrasonic-attenuation peak in heavy-fermion superconductors

Liam Coffey

doi:10.1103/PhysRevB.40.715

← Back to search

Origin of the longitudinal-ultrasonic-attenuation peak in heavy-fermion superconductors

Liam Coffey

DOI 10.1103/PhysRevB.40.715 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

Longitudinal-ultrasonic-attenuation α(T) in the strongly correlated heavy-fermion superconductors UBe13 and UPt3 shows an unusual peak below the superconducting transition temperature Tc. This feature can arise from a purely normal-state property, namely the large, heavy-electron effective mass me*. Thus, the peak may not necessarily be an indication of anisotropic superconductivity.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
UBe13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown