ホーム > 活動報告 > 物理講演会・談話会 > 令和 ７年度（２０２５年度）第2回 物理教室談話会
令和 ７年度（２０２５年度）第2回 物理教室談話会
| Title | Cuprate superconductivity: can low-temperature experiments help us find the mechanism? |
| Speaker | Prof. William Sacks (Sorbonne University） |
| Date and Time | August 26th (Tue.) 13:30-15:00 |
| Place | Collaboration room (Collaboration building 3F) |
| Keywords | cuprate superconductivity, pseudogap phenomena, low-temperature experiments, theoretical model |
| Abstract | Many experiments investigating hole-doped cuprates, such as resistivity, susceptibility, and specific heat, have concentrated on physical properties as a function of temperature. However, these experiments encounter challenges due to simultaneous thermal excitations (fluctuations, paramagnons, phonons, etc.). In this talk, we will focus on low-temperature experiments that reveal fundamental parameters such as the energy gap, the coherence length, the vortex core and the upper critical field [1]. By re-examining ARPES and tunneling results we will demonstrate that the ‘pairon’ model [2] of cuprate superconductivity offers a cogent and accurate picture. I will do my very best to make the talk accessible to a wide audience, including students, researchers, and professors outside of the field. [1] Magnetic phase diagram of cuprates and universal scaling laws, Y Noat, A Mauger, W Sacks, Physics Letters A, 544, 130460 (2025). [2] Cooper pairs without “glue” in high-Tc superconductors: A universal phase diagram, W Sacks, A Mauger, Y Noat, Europhysics Letters 119, 17001 (2017). |
| 世話人 | 横谷尚睦（内線 7897） |