2021/06/17 by Satoshi Ikegaya, Ikegaya, Satoshi, Shu-Ichiro Suzuki +5
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.2106.09413
9 pages, 10 figures
arxiv created 2021/06/17 · openalex publication_date 2021/06/17 · arxiv updated 2021/06/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
After more than 25 years of research, three even-parity superconducting states -- the d+id-wave, d+ig-wave, and s+id-wave states -- have emerged as leading candidates for the superconducting states of Sr2RuO4. In the present work, we propose a tunneling spectroscopy experiment for distinguishing among these three superconducting states. The key component of our proposal is that we examine the conductance spectra of normal-metal/Sr2RuO4 junctions with various angles between the junction interface and the crystal axis of the Sr2RuO4. The angle dependence of the conductance spectra shows a unique pattern in each superconducting state, which can function as a fingerprint for verifying the pairing symmetry of Sr2RuO4.