Theory of the de Haas–van Alphen effect in two-dimensional superconductors

S. H. Curnoe

doi:10.1103/PhysRevB.62.12413

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Theory of the de Haas–van Alphen effect in two-dimensional superconductors

S. H. Curnoe

DOI 10.1103/PhysRevB.62.12413 · Physical Review B

T1

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Abstract

The experimentally observed damping of magnetic oscillations in superconductors below Bc2 is qualitatively explained by application of the Lifshitz-Kosevich formula with the superconducting gap playing the role of the self-energy. In two dimensions this formula omits a leading order term proportional to oscillations of the self-energy. We apply a recently proposed formalism to derive the magnetization oscillation amplitude of two-dimensional superconductors in the (mixed) superconducting state. We find a significant correction to the LK formula, which leads to a sign reversal of the oscillations below Bc2.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
NbSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
V3Si Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
CeRu2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Nb3Sn Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
(BEDT-TTF)2Cu(NCS)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
(BEDT-TTF)2Cu(NSC)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown