The interplay between exciton- and phonon-induced superconductivity might explain the phenomena observed in LK-99

التفاصيل البيبلوغرافية
العنوان: The interplay between exciton- and phonon-induced superconductivity might explain the phenomena observed in LK-99
المؤلفون: Cao, Junhui, Kavokin, Alexey
سنة النشر: 2023
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Superconductivity
الوصف: The experimental results hinting at the room temperature and ambient pressure superconductivity and magnetic levitation in LK-99 attracted an unprecedented interest. While attempts of other teams to reproduce the reported observations on similar samples failed so far, it seems worthwhile to try building a theoretical model that would explain the ensemble of the available data. One of important features that needs to be explained is an apparent contradiction between an extremely high critical temperature Tc and rather modest critical magnetic field Bc and critical current jc reported for LK-99. We show theoretically, that these data may be quantitatively reproduced assuming the interplay between exciton- and phonon-induced superconductivity, while the conventional BCS or Brinkman-Rice-Bardeen-Cooper-Schriefer (BR-BCS) mechanisms would result in a much higher Bc for the same Tc.
Comment: Accepted for publication in Materials Today Communications
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2310.09305
رقم الأكسشن: edsarx.2310.09305
قاعدة البيانات: arXiv