A Mott insulator continuously connected to iron pnictide superconductors
oleh: Yu Song, Zahra Yamani, Chongde Cao, Yu Li, Chenglin Zhang, Justin S. Chen, Qingzhen Huang, Hui Wu, Jing Tao, Yimei Zhu, Wei Tian, Songxue Chi, Huibo Cao, Yao-Bo Huang, Marcus Dantz, Thorsten Schmitt, Rong Yu, Andriy H. Nevidomskyy, Emilia Morosan, Qimiao Si, Pengcheng Dai
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2016-12-01 |
Deskripsi
Whether an actual Mott insulator phase exists in iron pnictides remains elusive. Here, Songet al. demonstrate an antiferromagnetic insulator phase persisting above the Néel temperature in NaFe1−xCuxAs, indicative of a Mott insulator, highlighting the role of electron correlations in high-Tcsuperconductivity.