Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

1 Publication

Large carbon-isotope shift of Tc in boron-doped diamond

Dubrovinskaia, N.; Dubrovinsky, L.; Papageorgiou, T.; Bosak, A.; Krisch, M.; Braun, H. F.; Wosnitza, J.

Abstract

We report the carbon-isotope effect for boron-doped diamond (BDD). Resistive as well as specific-heat measurements reveal a 0.2 K shift in the superconducting transition temperature Tc between BDDs containing 13C and 12C. This is more than two times larger than could be expected from the mass difference by the use of the simple BCS formula in case the phenomenon is related to electron-phonon mediated superconductivity in BDD.

  • Applied Physics Letters 92(2008), 132506

Permalink: https://www.hzdr.de/publications/Publ-11221

Years: 2023 2022 2021 2020 2019 2018 2017 2016 2015