Publications (18)
Blood Works for Graphene Production
Xiaofan Cai, Ming Li, Chao Chen +15
Blood, a ubiquitous and fundamental carbohydrate material composed of plasma, red blood cells, white blood cells, and platelets, has been playing an important role in biology, life…
Weak Antilocalization Effect up to ~ 120 K in the van der Waals Crystal Fe5-xGeTe2 with Near Room Temperature Ferromagnetism
Zhengxian Li, Kui Huang, Deping Guo +15
The weak antilocalization (WAL) effect is known as a quantum correction to the classical conductivity, which never appeared in two-dimensional magnets. In this work, we reported th…
Observation of ballistic avalanche phenomena in nanoscale vertical InSe/BP heterostructures
Anyuan Gao, Jiawei Lai, Yaojia Wang +13
Initiating impact ionization of avalanche breakdown essentially requires applying a high electric field in a long active region, hampering carrier-multiplication with high gain, lo…
Strongly coupled magneto-exciton condensates in large-angle twisted double bilayer graphene
Qingxin Li, Yiwei Chen, LingNan Wei +15
Excitons, the bosonic quasiparticle emerging from Coulomb interaction between electrons and holes, will undergo a Bose-Einstein condensation(BEC) and transition into a superfluid s…
Quantum Hall Effect at 0.002T
Alexander S. Mayorov, Ping Wang, Xiaokai Yue +16
Graphene enables precise carrier-density control via gating, making it an ideal platform for studying electronic interactions. However, sample inhomogeneities often limit access to…
Unusual suppression of the superconducting energy gap and critical temperature in atomically thin NbSe2
Ekaterina Khestanova, John Birkbeck, Mengjian Zhu +12
It is well known that superconductivity in thin films is generally suppressed with decreasing thickness. This suppression is normally governed by either disorder-induced localizati…
Stepwise quantized surface states and delayed Landau level hybridization in Co cluster-decorated BiSbTeSe2 topological insulator devices
Shuai Zhang, Li Pi, Rui Wang +16
In three-dimensional topological insulators (TIs), the nontrivial topology in their electronic bands casts a gapless state on their solid surfaces, using which dissipationless TI e…
Nonlocal Response and Anamorphosis: the Case of Few-Layer Black Phosphorus
Artem Mishchenko, Yang Cao, Geliang Yu +5
Few-layer black phosphorus was recently rediscovered as a narrow-bandgap atomically thin semiconductor and has already attracted unprecedented attention due to its interesting prop…
Tunable ferroelectricity in hBN intercalated twisted double-layer graphene
Yibo Wang, Siqi Jiang, Jingkuan Xiao +10
Van der Waals (vdW) assembly of two-dimensional materials has been long recognized as a powerful tool to create unique systems with properties that cannot be found in natural compo…
Gate control of 2D magnetism in tri- and four-layers /graphene heterostructures
Ping Wang, Fuzhuo Lian, Renjun Du +11
We conduct experimental studies on the electrical transport properties of monolayer graphene directly covered by a few layers of . We do not observe the expected magneti…
Chemical vapor deposition growth of continuous monolayer antiferromagnetic CrOCl films
Chao Chen, Yulu Liu, Hongyan Lu +29
The discovery of two-dimensional magnetic materials has provided an ideal platform for exploring physical phenomena in the two-dimensional limit. However, intrinsic two-dimensional…
Tailoring pure valley-Zeeman spin-orbit coupling in WSe-encapsulated monolayer graphene
Yaqing Han, Siqi Jiang, Jingkuan Xiao +17
Engineering proximity effects in twisted van der Waals heterostructures offers a powerful platform for designing electronic properties. While theoretical predictions of quantum int…
Quantum melting of generalized electron crystal in twisted bilayer MoSe2
Qi Jun Zong, Haolin Wang, Qi Zhang +12
Electrons can form an ordered solid crystal phase ascribed to the interplay between Coulomb repulsion and kinetic energy. Tuning these energy scales can drive a phase transition fr…
Anomalous Meets Topological Hall Effect in Cr2Ge2Te6 Heterostructures
Xiaofan Cai, Yaqing Han, Jiawei Jiang +21
Introducing topologically protected skyrmions in graphene holds significant importance for developing high-speed, low-energy spintronic devices. Here, we present a centrosymmetric…
Tailoring coercive fields and the Curie temperature via proximity coupling in WSe/FeGeTe van der Waals heterostructures
Guodong Ma, Renjun Du, Fuzhuo Lian +13
Hybrid structures consisting of two-dimensional (2D) magnets and semiconductors have exhibited extensive functionalities in spintronics and opto-spintronics. In this work, we have…
Ferroelectricity in twisted double bilayer graphene
Renjun Du, Jingkuan Xiao, Di Zhang +7
Two-dimensional ferroelectrics can maintain vertical polarization up to room temperature, and are, therefore, promising for next-generation nonvolatile memories. Although natural t…
The interplay of ferroelectricity and magneto-transport in non-magnetic moiré superlattices
Siqi Jiang, Renjun Du, Jiawei Jiang +20
The coupling of ferroelectricity and magnetic order provides rich tunability for engineering material properties and demonstrates great potential for uncovering novel quantum pheno…
Reversible Engineering of Topological Insulator Surface State Conductivity through Optical Excitation
Faji Xie, Zhen Lian, Shuai Zhang +13
Despite the broadband response, limited optical absorption at a particular wavelength hinders the development of optoelectronics based on Dirac fermions. Heterostructures of graphe…