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Updated: Feb 10, 2026

Fabrication and Characterization of Superconducting Resonators
Published on: May 21, 2016
Strong antisymmetric spin-orbit coupling and superconducting properties: the case of noncentrosymmetric LaPtSi
S Palazzese1,2, J F Landaeta1, D Subero1
1Centro de Física, Instituto Venezolano de Investigaciones Científicas, Apartado 20632, Caracas 1020-A, Venezuela.
Abstract:
In this work we aim to analyze the effect of a strong antisymmetric spin-orbit coupling (ASOC) on the superconductivity of noncentrosymmetric LaPtSi. We study the energy gap structure of polycrystalline LaPtSi by using magnetic penetration depth measurements down to 0.02T c. We observed a dirty s-wave behavior, which provides compelling evidence that the spin-singlet component of the mixed pairing state is highly dominant. This is consistent with previous results in the sense that the mere presence of a strong ASOC does not lead to unconventional behaviors. Our result also downplays LaPtSi as a good candidate for realizing time-reversal invariant topological superconductivity.
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