论文标题

在固态系统中由费米制成的充电玻色子,而无需库珀配对

Charged bosons made of fermions in a solid state system without Cooper pairing

论文作者

Sun, Z., Beaumariage, J., Wan, Q., Alnatah, H., Hougland, N., Chisholm, J., Cao, Q., Watanabe, K., Taniguchi, T., Hunt, B., Bondarev, I. V., Snoke, D. W.

论文摘要

我们报告了在没有库珀配对的情况下,在没有库珀配对的情况下为带电的玻色子状态的实验证据,基于将两个自由载体附加到半导体系统中的激子。理论计算表明,这种类型的复合物在平行金属层旁边的双层系统中是稳定的。我们对使用两种不同材料制成的结构进行的实验测量显示了在预测能量处的新光谱线,并且仅当满足该配合物的所有必需条件时,包括平行金属层,该层显着筛选出类似载体之间的排斥相互作用,并且预测的依赖于金属层的距离。这暗示着在不配对的情况下追求室温超导性的新途径。

We report experimental evidence for charged boson states in a solid without Cooper pairing, based on attaching two free carriers to an exciton in a semiconducting system. Theoretical calculations show that this type of complex is stable in bilayer systems next to a parallel metal layer. Our experimental measurements on structures made using two different materials show a new spectral line at the predicted energy, if and only if all the required conditions for this complex are fulfilled, including a parallel metal layer that significantly screens the repulsive interaction between the like-charge carriers, and with the predicted dependence on the distance to the metal layer. This suggests a new path for pursuing room temperature superconductivity without Cooper pairing.

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