Nematic Ising superconductivity with hidden magnetism in few-layer 6R-TaS2

Liu，Shao Bo1; Tian，Congkuan1,2; Fang，Yuqiang3; Rong，Hongtao4; Cao，Lu5; Wei，Xinjian2; Cui，Hang1; Chen，Mantang1; Chen，Di2; Song，Yuanjun2; Cui，Jian2; Li，Jiankun2; Guan，Shuyue1; Jia，Shuang1; Chen，Chaoyu4; He，Wenyu6; Huang，Fuqiang3; Jiang，Yuhang5; Mao，Jinhai7; Xie，X. C.1,8,9; Law，Kam Tuen10; Chen，Jian Hao1,2,9,11

2024-12-01

10.1038/s41467-024-51631-z

Nature Communications   影响因子和分区

2041-1723

In van der Waals heterostructures (vdWHs), the manipulation of interlayer stacking/coupling allows for the construction of customizable quantum systems exhibiting exotic physics. An illustrative example is the diverse range of states of matter achieved through varying the proximity coupling between two-dimensional (2D) quantum spin liquid (QSL) and superconductors within the TaS family. This study presents a demonstration of the intertwined physics of spontaneous rotational symmetry breaking, hidden magnetism, and Ising superconductivity (SC) in the three-fold rotationally symmetric, non-magnetic natural vdWHs 6R-TaS. A distinctive phase emerges in 6R-TaS below a characteristic temperature (T) of approximately 30 K, which is characterized by a remarkable set of features, including a giant extrinsic anomalous Hall effect (AHE), Kondo screening, magnetic field-tunable thermal hysteresis, and nematic magneto-resistance. At lower temperatures, a coexistence of nematicity and Kondo screening with Ising superconductivity is observed, providing compelling evidence of hidden magnetism within a superconductor. This research not only sheds light on unexpected emergent physics resulting from the coupling of itinerant electrons and localized/correlated electrons in natural vdWHs but also emphasizes the potential for tailoring exotic quantum states through the manipulation of interlayer interactions.

SCI

英语

其他

2-s2.0-85202872188

Scopus

1.International Center for Quantum Materials,School of Physics,Peking University,Beijing,China
2.Beijing Academy of Quantum Information Sciences,Beijing,China
3.School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai,China
4.Shenzhen Institute for Quantum Science and Engineering and Department of Physics,Southern University of Science and Technology,Shenzhen,China
5.College of Materials Science and Optoelectronic Technology,Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing,China
6.School of Physical Science and Technology,ShanghaiTech University,Shanghai,China
7.CAS Center for Excellence in Topological Quantum Computation,University of Chinese Academy of Sciences,Beijing,China
8.Institute for Nanoelectronic Devices and Quantum Computing,Fudan University,Shanghai,China
9.Hefei National Laboratory,Hefei,China
10.Department of Physics,Hong Kong University of Science and Technology,Hong Kong
11.Key Laboratory for the Physics and Chemistry of Nanodevices,Peking University,Beijing,China

Liu，Shao Bo,Tian，Congkuan,Fang，Yuqiang,et al. Nematic Ising superconductivity with hidden magnetism in few-layer 6R-TaS2[J]. Nature Communications,2024,15(1).

Liu，Shao Bo.,Tian，Congkuan.,Fang，Yuqiang.,Rong，Hongtao.,Cao，Lu.,...&Chen，Jian Hao.(2024).Nematic Ising superconductivity with hidden magnetism in few-layer 6R-TaS2.Nature Communications,15(1).

Liu，Shao Bo,et al."Nematic Ising superconductivity with hidden magnetism in few-layer 6R-TaS2".Nature Communications 15.1(2024).