146 citations · 684 across the 29 of their papers we have counts for
30 papers
Observation of first-order quantum phase transitions and ferromagnetism in twisted double bilayer graphene
Le Liu, Xin Lu, Yanbang Chu +14
Twisted graphene multilayers are highly tunable flatband systems for developing new phases of matter. Thus far, while orbital ferromagnetism has been observed in valley polarized p…
Quantifying quantum coherence of multiple-charge states in tunable Josephson junctions
Jiangbo He, Dong Pan, Mingli Liu +11
Coherence and tunneling play central roles in quantum phenomena. In a tunneling event, the time that a particle spends inside the barrier has been fiercely debated. This problem be…
Gate-tunable negative differential conductance in hybrid semiconductor-superconductor devices
Mingli Liu, Dong Pan, Tian Le +10
Negative differential conductance (NDC) manifests as a significant characteristic of various underlying physics and transport processes in hybrid superconducting devices. In this w…
A robust and tunable Luttinger liquid in correlated edge of transition-metal second-order topological insulator TaPdTe
Anqi Wang, Yupeng Li, Guang Yang +20
The interplay between topology and interaction always plays an important role in condensed matter physics and induces many exotic quantum phases, while rare transition metal layere…
Continuously Doping Bi 2 Sr 2 CaCu 2 O 8+δ into Electron-Doped Superconductor by CaH 2 Annealing Method
Jin Zhao, Yu-Lin Gan, Guang Yang +15
As a typical hole-doped cuprate superconductor, Bi 2 Sr 2 CaCu 2 O 8+δ (Bi2212) carrier doping is mostly determined by its oxygen content. Traditional doping methods can regulate i…
Spin triplet superconducting pairing in doped MoS
Jingyao Wang, Xiao Zhang, Runyu Ma +3
Searching for triplet superconductivity has been pursued intensively in a broad field of material science and quantum information for decades. Nevertheless, these novel states rema…
Quantum oscillations in field-induced correlated insulators of a moiré superlattice
Le Liu, Yanbang Chu, Guang Yang +14
We report an observation of quantum oscillations (QOs) in the correlated insulators with valley anisotropy of twisted double bilayer graphene (TDBG). The anomalous QOs are best cap…
Asymmetric Fraunhofer pattern in Josephson junctions from heterodimensional superlattice VS
Juewen Fan, Bingyan Jiang, Jiaji Zhao +9
Introduction of spin-orbit coupling (SOC) in a Josephson junction (JJ) gives rise to unusual Josephson effects. We investigate JJs based on a newly discovered heterodimensional sup…
Anomalous Josephson Effect in Topological Insulator-Based Josephson Trijunction
Xiang Zhang, Zhaozheng Lyu, Guang Yang +11
We studied anomalous Josephson effect (AJE) in Josephson trijunctions fabricated on BiSe, and found that the AJE in T-shaped trijunctions significantly alters the Majorana…
Boosting spintronics with superconductivity
Guang Yang, Chiara Ciccarelli, Jason W. A. Robinson
Spintronics aims to utilize the spin degree of freedom for energy-efficient, non-volatile memory and logic devices. In this research update, we review state-of-the-art developments…
Thermal annealing enhancement of Josephson critical currents in ferromagnetic CoFeB
Sachio Komori, Juliet E. Thompson, Guang Yang +4
The electrical and structural properties of Co40Fe40B20 (CoFeB) alloy are tunable with thermal annealing. This is key in the optimization of CoFeB-based spintronic devices, where t…
Quantum-limit Hall effect with large carrier density in topological semimetals
Guang Yang, Yi Zhang
The quantum-limit Hall effect at that hosts a variety of exotic quantum phenomena requires demanding strong magnetic field and low carrier density . We p…
Spin-orbit coupling suppression and singlet-state blocking of spin-triplet Cooper pairs
Sachio Komori, James Devine-Stoneman, Kohei Ohnishi +10
An inhomogeneous magnetic exchange field at a superconductor/ferromagnet interface converts spin-singlet Cooper pairs to a spin-aligned (i.e. spin-polarized) triplet state. Althoug…
Magnitude and Spatial Distribution Control of the Supercurrent in Bi2O2Se-Based Josephson Junction
Jianghua Ying, Jiangbo He, Guang Yang +15
Many proposals in exploring topological quantum computation are based on superconducting quantum devices constructed on materials with strong spin-orbit coupling (SOC). For these d…
Spin-transport in superconductors
K. Ohnishi, S. Komori, G. Yang +5
Spin-transport in superconductors is a subject of fundamental and technical importance with the potential for applications in superconducting-based cryogenic memory and logic. Rese…
Gate-tunable h/e-period magnetoresistance oscillations in Bi2O2Se nanowires
Jianghua Ying, Guang Yang, Zhaozheng Lyu +8
We report on the successful synthesis and low-temperature electron transport investigations of a new form of material - Bi2O2Se semiconducting nanowires. Gate-tunable 0- and -h/…
Probing the minigap in topological insulator-based Josephson junctions under radio frequency irradiation
Guang Yang, Zhaozheng Lyu, Xiang Zhang +2
Recently, a contact-resistance-measurement method was developed to detect the minigap, hence the Andreev bound states (ABSs), in Josephson junctions constructed on the surface of t…
Anisotropy engineering edge magnetism in zigzag honeycomb nanoribbons
Baoyue Li, Yifeng Cao, Lin Xu +4
It have been demonstrated that the zigzag honeycomb nanoribbons exhibit an intriguing edge magnetism. Here the effect of the anisotropy on the edge magnetism in zigzag honeycomb na…
Evidence of Majorana Zero Modes in Josephson Trijunctions
Guang Yang, Zhaozheng Lyu, Junhua Wang +9
In search of fault-tolerant topological quantum computation (TQC), zero-bias conductance peak as a necessary signature of Majorana zero modes (MZMs) has been observed in a number o…
Strain-tuning of edge magnetism in zigzag graphene nanoribbons
Guang Yang, Baoyue Li, Wei Zhang +2
Using the determinant quantum Monte-Carlo method, we elucidate the strain tuning of edge magnetism in zigzag graphene nanoribbons. Our intensive numerical results show that a relat…
Observation of Anomalous Magnetic Moments in Superconducting Bi/Ni Bilayer
Junhua Wang, Xinxin Gong, Guang Yang +10
There have been continuous efforts in searching for unconventional superconductivity over the past five decades. Compared to the well-established d-wave superconductivity in cuprat…
Fractional boundary charges in quantum dot arrays with density modulation
Jin-Hong Park, Guang Yang, Jelena Klinovaja +2
We show that fractional charges can be realized at the boundaries of a linear array of tunnel coupled quantum dots in the presence of a periodically modulated onsite potential. Whi…
Room temperature magnetism on the zigzag edges of phosphorene nanoribbons
Guang Yang, Shenglong Xu, Wei Zhang +2
Searching for room temperature ferromagnetic semiconductors has evolved into a broad field of material science and spintronics for decades, nevertheless, these novel states remain…
Protected gap closing in Josephson junctions constructed on BiTe surface
Zhaozheng Lyu, Yuan Pang, Junhua Wang +7
On the road of searching for Majorana zero modes (MZMs) in topological insulator-based Josephson junctions, a highly-sought signature is the protected full transparency of electron…