Probing electronic and spin excitations in superconducting La3Ni2O7/SrLaAlO4 thin films
收藏ESRF Portal2028-01-01 更新2026-04-23 收录
下载链接：
https://doi.esrf.fr/10.15151/ESRF-ES-2220633270
下载链接
链接失效反馈官方服务：
资源简介：
Recently, ambient-pressure superconductivity (SC) with Tc>40 K has been realized in La3Ni2O7 (LNO) thin films grown on SrLaAlO4 (SLAO) substrates that applies in-plane compressive epitaxial strain on LNO, making possible spectroscopic studies on LNO in the superconducting state employing soft X-rays. Our previous RIXS experiments on LNO/LAO, LNO/LSAT and LNO/STO performed at ID32, ESRF revealed that the spectral weight and energy of spin excitations are enhanced by the in-plane compressive strain, and their electronic structure could be effectively tuned by epitaxial strain, suggesting that spin fluctuations likely play a crucial role in mediating electron pairing in the superconducting phase of LNO. However, the spin dynamics and the detailed orbital energy landscape in LNO/SLAO remain to be explored experimentally. We aim to utilize RIXS to probe the spin and orbital excitations of LNO/SLAO thin films, with the goal of gaining deeper insights into the mechanisms underlying SC in LNO.
提供机构：
Paul Scherrer Institut, Photon Science Division, Forschungstrasse 111, 5232 Villigen, Switzerland; Paul Scherrer Institut, Photon Science Division, Forschungstrasse 111, 5232, Villigen, SWITZERLAND; Beijing Normal University, The Center of Advanced Quantum Studies, 19 Xinjiekouwai Street, 100875 Beijing, China; Beijing Normal University, The Center of Advanced Quantum Studies, 19 Xinjiekouwai Street, 100875, Beijing, CHINA; Beijing Normal University, School of Physics and Astronomy, Beijing Norm, 19 Xinjiekouwai Street ,BEIJING, 100875, Beijing, CHINA
创建时间：
2028-01-01
