Possible evidence for an incommensurate spin density wave in the stanford electron tunneling studies into LaSrCuO |
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| Institution: | 1. TU Dortmund University, Otto-Hahn-Straße 4, Dortmund 44227, Germany;2. Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, c/Catedrático José Beltrán. 2, Paterna 46980, Spain;1. School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China;2. Institute of Physics, Chinese Academy of Science, Beijing 100190, China |
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| Abstract: | The Stanford studies include a remarkable dI/dV versus voltage curve with not just one BCS-like peak on each of the positive and negative voltage curves, but with three peaks on the positive-V side, and almost the same structure on the negative-V side. This structure may be caused by an incommensurate spin density wave (SDW) with TCSCW comparable to 125 K. Incommensurability of the SDW would replicate the usual structure at EF with two peaks at the edges of a 2Δ gap centred not at EF, but at displaced positions ± 2vFδQ away from EF, where δQ is the incommensurability of the SDW wave vector. |
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