A5080509159- Topological Materials and Phenomena
- Iron-based superconductors research
- Graphene research and applications
- Advanced Condensed Matter Physics
- Electronic and Structural Properties of Oxides
- Quantum and electron transport phenomena
- Rare-earth and actinide compounds
- Physics of Superconductivity and Magnetism
- Magnetic and transport properties of perovskites and related materials
- Magnetic properties of thin films
- Schizophrenia research and treatment
- Cold Atom Physics and Bose-Einstein Condensates
- Superconductivity in MgB2 and Alloys
- Music Therapy and Health
- Atomic and Subatomic Physics Research
- Quantum, superfluid, helium dynamics
- Surface and Thin Film Phenomena
- Magnetic Field Sensors Techniques
- Anodic Oxide Films and Nanostructures
- Chemical and Physical Properties of Materials
- Breast Cancer Treatment Studies
- Tumors and Oncological Cases
- Organic Light-Emitting Diodes Research
- Breast Lesions and Carcinomas
- Intellectual Capital and Performance Analysis
Second Affiliated Hospital of Xi'an Jiaotong University
2023-2024
Pennsylvania State University
2018-2022
Hiroshima University
2010
The "magnetoelectric effect" arises from the coupling between magnetic and electric properties in materials. Z2 invariant of topological insulators (TIs) leads to a quantized version this phenomenon, known as magnetoelectric (TME) effect. This effect can be realized new phase called an "axion insulator" whose surface states are all gapped but interior still obeys time reversal symmetry. We demonstrate such using electrical transport measurements quantum anomalous Hall (QAH) sandwich...
A quantum anomalous Hall (QAH) insulator coupled to an s-wave superconductor is predicted harbor a topological superconducting phase, the elementary excitations of which (i.e. Majorana fermions) can form qubits upon non-Abelian braiding operations. recent transport experiment interprets half-quantized two-terminal conductance plateau as presence chiral fermions in millimeter-size QAH-Nb hybrid structure. However, there are concerns about this interpretation because non-Majorana mechanisms...
The exact mechanism responsible for the significant enhancement of superconducting transition temperature (Tc) monolayer iron selenide (FeSe) films on SrTiO3 (STO) over that bulk FeSe is an open issue. We present results a coordinated study electrical transport, low electron energy-loss spectroscopy (EELS), and high-angle annular dark-field scanning transmission microscopy (HAADF-STEM) measurements FeSe/STO different thicknesses. HAADF-STEM imaging together with EELS mapping across interface...
Inducing magnetic orders in a topological insulator (TI) to break its time reversal symmetry has been predicted reveal many exotic quantum phenomena. The manipulation of TI layer can play key role harnessing these phenomena towards technological applications. Here we fabricated thin film on an antiferromagnetic (AFM) Cr2O3 and found that the moments surface spins layers favor interfacial AFM coupling. Field cooling studies show crossover from negative positive exchange bias clarifying...
Topological crystalline insulator is a recently discovered topological phase of matter. It possesses multiple Dirac surface states, which are protected by the crystal symmetry. This in contrast to time-reversal symmetry that operative well-known insulators. In presence Zeeman field and/or strain, states gapped. The high-Chern-number quantum anomalous Hall (QAH) state predicted emerge if chemical potential resides all gaps. Here, we use molecular-beam epitaxy grow 12 double-layer (DL) pure...
When a ferromagnet is placed in contact with superconductor, owing to incompatible spin order, the Cooper pairs from superconductor cannot survive more than one or two nanometers inside ferromagnet. This confirmed measurements of ferromagnetic nickel (Ni) nanowires contacted by superconducting niobium (Nb) leads. However, when 3 nm thick copper oxide (CuO) buffer layer made exposing an evaporated sputtered Cu film air, inserted between Nb electrodes and Ni wire, spatial extent proximity...
We use magnetotransport in dual-gated magnetic topological insulator heterostructures to map out a phase diagram of the Hall and quantum anomalous effects as function chemical potential (primarily determined by back gate voltage) asymmetric top voltage). A theoretical model that includes both surface states valence band well allows evaluation variation Dzyaloshinskii-Moriya interaction carrier density with voltages. The qualitative agreement between experiment theory provides strong evidence...
The exact mechanism responsible for the tenfold enhancement of superconducting transition temperature (Tc) in a monolayer iron selenide (FeSe) on SrTiO3(STO) substrate over that bulk FeSe, is an open issue. We present here coordinated study electrical transport and low electron energy-loss spectroscopy (EELS) measurements FeSe/STO films various thicknesses. Our EELS mapping across interface shows direct evidence band-bending caused by electrons transferred from STO to FeSe layer. were found...
Background Contrast-enhanced ultrasound (CEUS) shows potential for the differential diagnosis of breast lesions in general, but its effectiveness remains unclear highly suspicious cancers. Objective This study aimed to evaluate diagnostic value CEUS differentiating pathological subtypes defined as category 4 US-BI-RADS. Methods The dataset 150 was prospectively collected from patients who underwent routine and examination were suspected having All pathologically confirmed by US-guided needle...
Abstract An uncoated address‐electrode structure is adopted for the measurement of exo‐electron emission in AC‐PDPs. In this way surface charging effects rear dielectric layer and phosphor layers are eliminated. By applying waveforms with different number sustaining pulses, measured during a full TV frame.
Two-dimensional layered and atomically thin elemental superconductors may be key ingredients in next-generation quantum technologies, if they can stabilized integrated into heterostructured devices under ambient conditions. However, are largely unexplored outside ultra-high vacuum due to rapid oxidation, even 2D require complex encapsulation strategies maintain material quality. Here we demonstrate environmentally stable, single-crystal, few-atom-thick superconducting gallium, 2D-Ga,...
Congenital infantile fibrosarcoma (CIF) and congenital hemangioma (CH) have similarities on prenatal ultrasound are rare.