840 citations · 2k across the 23 of their papers we have counts for
23 papers
Increasing the Rate of Magnesium Intercalation Underneath Epitaxial Graphene on 6H-SiC(0001)
Jimmy C. Kotsakidis, Marc Currie, Antonija Grubišić-Čabo +9
Magnesium intercalated 'quasi-freestanding' bilayer graphene on 6H-SiC(0001) (Mg-QFSBLG) has many favorable properties (e.g., highly n-type doped, relatively stable in ambient cond…
Fabrication-induced even-odd discrepancy of magnetotransport in few-layer MnBiTe
Yaoxin Li, Yongchao Wang, Zichen Lian +20
The van der Waals antiferromagnetic topological insulator MnBi2Te4 represents a promising platform for exploring the layer-dependent magnetism and topological states of matter. Rec…
Increased Phase Coherence Length in a Porous Topological Insulator
Alex Nguyen, Golrokh Akhgar, David L. Cortie +11
The surface area of Bi2Te3 thin films was increased by introducing nanoscale porosity. Temperature dependent resistivity and magnetotransport measurements were conducted both on as…
Influences of the dissipative topological edge state on quantized transport in MnBi2Te4
Weiyan Lin, Yang Feng, Yongchao Wang +9
The beauty of quantum Hall (QH) effect is the metrological precision of Hall resistance quantization that originates from the topological edge states. Understanding the factors tha…
Ambi-chiral anomalous Hall effect in magnetically doped topological insulators
Chang Liu, Yunyi Zang, Yan Gong +4
The chirality associated with broken time reversal symmetry in magnetically doped topological insulators has important implications to the quantum transport phenomena. Here we repo…
Gate-tunable magnetoresistance in six-septuple-layer MnBiTe
Yaoxin Li, Chang Liu, Yongchao Wang +4
The recently discovered antiferromagnetic topological insulator MnBiTe hosts a variety of exotic topological quantum phases such as the axion insulator and Chern insulator…
Formation of a stable surface oxide in MnBiTe thin films
Golrokh Akhgar, Qile Li, Iolanda Di Bernardo +6
Understanding the air-stability of MnBiTe thin films is crucial for the development and long-term operation of electronic devices based around magnetic topological insulato…
Direct visualization of edge state in even-layer MnBi2Te4 at zero magnetic field
Weiyan Lin, Yang Feng, Yongchao Wang +12
Being the first intrinsic antiferromagnetic(AFM) topological insulator(TI), MnBi2Te4 is argued to be a topological axion state in its even-layer form due to the antiparallel magnet…
Distinct quantum anomalous Hall ground states induced by magnetic disorders
Chang Liu, Yunbo Ou, Yang Feng +8
The quantum anomalous Hall (QAH) effect in magnetic topological insulator (TI) represents a new state of matter originated from the interplay between topology and magnetism. The de…
Progress in epitaxial thin-film Na3Bi as a topological electronic material
I. Di Bernardo, J. Hellerstedt, C. Liu +8
Na3Bi was the first experimentally verified topological Dirac semimetal (TDS), and is a 3D analogue of graphene hosting relativistic Dirac fermions. Its unconventional momentum-ene…
Freestanding n-Doped Graphene via Intercalation of Calcium and Magnesium into the Buffer Layer - SiC(0001) Interface
Jimmy C. Kotsakidis, Antonija Grubišić-Čabo, Yuefeng Yin +12
The intercalation of epitaxial graphene on SiC(0001) with Ca has been studied extensively, yet precisely where the Ca resides remains elusive. Furthermore, the intercalation of Mg…
Quantum Transport in Air-stable Na3Bi Thin Films
Chang Liu, Golrokh Akhgar, James L. Collins +4
Na3Bi has attracted significant interest in both bulk form as a three-dimensional topological Dirac semimetal and in ultra-thin form as a wide-bandgap two-dimensional topological i…
Magnetic-field-induced robust zero Hall plateau state in MnBiTe Chern insulator
Chang Liu, Yongchao Wang, Ming Yang +11
The intrinsic antiferromagnetic topological insulator MnBi2Te4 provides an ideal platform for exploring exotic topological quantum phenomena. Recently, the Chern insulator and axio…
Antiferromagnetic Topological Insulator MnBi2Te4: Synthesis and Magnetic properties
Hao Li, Shengsheng Liu, Chang Liu +6
Recently, MnBi2Te4 has been discovered as the first intrinsic antiferromagnetic topological insulator (AFM TI), and will become a promising material to discover exotic topological…
Signatures of Helical Edge Transport in Millimetre-Scale Thin Films of Na3Bi
Chang Liu, Dimitrie Culcer, Mark T. Edmonds +1
A two-dimensional topological insulator (2DTI) has an insulating bulk and helical spin-polarised edge modes robust to backscattering by non-magnetic disorder. While ballistic trans…
Robust axion insulator and Chern insulator phases in a two-dimensional antiferromagnetic topological insulator
Chang Liu, Yongchao Wang, Hao Li +7
The intricate interplay between nontrivial topology and magnetism in two-dimensional (2D) materials has led to the emergence of many novel phenomena and functionalities. An outstan…
Electric Field-Tuned Topological Phase Transition in Ultra-Thin Na3Bi - Towards a Topological Transistor
James L. Collins, Anton Tadich, Weikang Wu +11
The electric field induced quantum phase transition from topological to conventional insulator has been proposed as the basis of a topological field effect transistor [1-4]. In thi…
Direct evidence of ferromagnetism in a quantum anomalous Hall system
Wenbo Wang, Yunbo Ou, Chang Liu +4
Quantum anomalous Hall (QAH) systems are of great fundamental interest and potential application because of their dissipationless conduction without the need for external magnetic…
Dimensional Crossover Induced Topological Hall Effect in a Magnetic Topological Insulator
Chang Liu, Yunyi Zang, Wei Ruan +5
We report transport studies of Mn-doped Bi2Te3 topological insulator (TI) films with accurately controlled thickness grown by molecular beam epitaxy. We find that films thicker tha…
Temperature Dependent n-p Transition of 3 Dimensional Dirac Semimetal NaBi Thin Film
Chang Liu, Jack Hellerstedt, Mark T. Edmonds +1
We study the temperature dependence ( K - K) of the longitudinal resistivity and Hall coefficient of thin films (thickness nm) of three dimensional topological Dirac…
Electrostatic Modulation of the Electronic Properties of Dirac Semimetal Na3Bi
Jack Hellerstedt, Indra Yudhistira, Mark T. Edmonds +4
Large-area thin films of topological Dirac semimetal NaBi are grown on amorphous SiO:Si substrates to realise a field-effect transistor with the doped Si acting as back gat…
Onset of the Meissner effect at 65 K in FeSe thin film grown on Nb doped SrTiO3 substrate
Zuocheng Zhang, Yihua Wang, Qi Song +5
We report the Meissner effect studies on an FeSe thin film grown on Nb doped SrTiO3 substrate by molecular beam epitaxy. Two-coil mutual inductance measurement clearly demonstrates…
Observation of the zero Hall plateau in a quantum anomalous Hall insulator
Yang Feng, Xiao Feng, Yunbo Ou +10
Quantum anomalous Hall (QAH) effect in magnetic topological insulator (TI) is a novel transport phenomenon in which the Hall resistance reaches the quantum plateau in the absence o…