Xiaotian Wang

ORCID: 0000-0003-2019-7026
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About
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Research Areas
  • Topological Materials and Phenomena
  • 2D Materials and Applications
  • Graphene research and applications
  • Stochastic processes and financial applications
  • Heusler alloys: electronic and magnetic properties
  • Advanced Condensed Matter Physics
  • Advanced Photocatalysis Techniques
  • Financial Risk and Volatility Modeling
  • Magnetic Properties of Alloys
  • MXene and MAX Phase Materials
  • Complex Systems and Time Series Analysis
  • Magnetic and transport properties of perovskites and related materials
  • ZnO doping and properties
  • Multiferroics and related materials
  • Magnetic properties of thin films
  • Aviation Industry Analysis and Trends
  • Transportation Planning and Optimization
  • Air Traffic Management and Optimization
  • Quantum Dots Synthesis And Properties
  • Perovskite Materials and Applications
  • Rare-earth and actinide compounds
  • Ga2O3 and related materials
  • Electrocatalysts for Energy Conversion
  • Advanced Thermoelectric Materials and Devices
  • Electronic and Structural Properties of Oxides

University of Wollongong
2010-2025

Chongqing University
2020-2025

Southwest University
2018-2024

Hefei University
2023-2024

Southern Medical University
2024

Chinese University of Hong Kong, Shenzhen
2018-2024

Nankai University
2008-2024

Chengdu University
2024

North China Electric Power University
2024

Xuzhou Medical College
2005-2023

Abstract Two-dimensional semiconductors, including transition metal dichalcogenides, are of interest in electronics and photonics but remain nonmagnetic their intrinsic form. Previous efforts to form two-dimensional dilute magnetic semiconductors utilized extrinsic doping techniques or bulk crystal growth, detrimentally affecting uniformity, scalability, Curie temperature. Here, we demonstrate an situ substitutional Fe atoms into MoS 2 monolayers the chemical vapor deposition growth. The...

10.1038/s41467-020-15877-7 article EN cc-by Nature Communications 2020-04-27

Recently, the real topology has been attracting widespread interest in two dimensions (2D). Here, based on first-principles calculations and theoretical analysis, monolayer Cr

10.1002/adma.202402232 article EN cc-by Advanced Materials 2024-04-29

Abstract The study of topological phases with unconventional bulk‐boundary correspondences and nontrivial real Chern number has garnered significant attention in the states matter. Using first‐principle calculations theoretical analysis, a high‐throughput material screening 3D obstructed atomic insulators (OAIs) (RCIs) based on Samara Carbon Allotrope Database (SACADA) are performed. Results show that 422 out 703 carbon allotropes OAIs multiple correspondences, including 2D surface (OSSs) 1D...

10.1002/adfm.202316079 article EN cc-by Advanced Functional Materials 2024-04-16

This paper reports a facile fabrication of N‐doped graphene quantum dots (N‐GQDs) showing controllable chemical properties through hydrothermal treatment. The N‐GQDs have uniform size 3.06 ± 0.78 nm and prefer the equilibrium shapes circle ellipse due to minimization edge free energy. N / C atomic ratio in can be precisely tailored range from 8.3 at% 15.8 by simply controlling concentration source (ammonium hydroxide). One order magnitude yield 34.5% is achieved N‐GQDs, compared with N‐free...

10.1002/ppsc.201300268 article EN Particle & Particle Systems Characterization 2013-12-27

The topological phenomenon has been extensively studied in condensed matter physics and attracted much attention many different fields. Like electrons, phonons can also be using critical theorems topology concepts, giving impetus to the birth of phonons. Among phonons, nodal line crystalline materials have emerged as a new area rapid development both experiment theory. Researchers hunting for realistic with last four years. To date, however, timely review recent advances especially their...

10.1063/5.0095281 article EN Applied Physics Reviews 2022-11-04

This year, researchers have been on the lookout for real materials with one-nodal, two-nodal (two-NS), and three-nodal surface phonons. However, two-NS phonons scarce until recently. paper contributes to understanding of symmetry conditions Two-NS NS states that are localized two three ${k}_{i}=\ifmmode\pm\else\textpm\fi{}\ensuremath{\pi}$ $(i=x,y,z)$ planes in three-dimensional Brillouin zone). They dominated by twofold screw time-reversal symmetry. also prediction a series their phonon...

10.1103/physrevb.105.054307 article EN Physical review. B./Physical review. B 2022-02-14

One of the key problems in valleytronics is to realize valley polarization. Ferrovalley (FV) semiconductor and half-valley-metal (HVM) have been proposed, which possess intrinsic spontaneous Here, we propose concept quasi-half-valley-metal (QHVM), including electron hole carriers with only a type being polarized. The QHVM may separation function hole. A concrete example $\mathrm{VGe_2P_4}$ monolayer used illustrate our proposal through first-principle calculations. To better QHVM, electric...

10.1103/physrevb.107.054414 article EN Physical review. B./Physical review. B 2023-02-15

In this paper, we used symmetry analyses and first-principles calculations to discover seven Cs-Te binary systems that have different crystal structures can host symmetry-enforced topologically nontrivial phonons: $P{2}_{1}{2}_{1}{2}_{1}\text{\ensuremath{-}}{\mathrm{Cs}}_{2}\mathrm{Te}, Pbam$-CsTe, $Pnma\text{\ensuremath{-}}{\mathrm{Cs}}_{2}\mathrm{Te}, Pm\overline{3}m$-CsTe, $Cmcm\text{\ensuremath{-}}{\mathrm{Cs}}_{2}{\mathrm{Te}}_{5},...

10.1103/physrevb.107.024304 article EN Physical review. B./Physical review. B 2023-01-18

Second‐order topological insulators (SOTIs) in 2D materials have attracted significant research interest. Recent theoretical predictions suggest that SOTIs can be achievable magnetic systems, especially within ferromagnetic (FM) materials. Yet, the quest for suitable antiferromagnetic (AFM) capable of hosting remains a challenge. Herein, utilizing first‐principles calculations and analysis, CrSBr is proposed, including monolayer bilayer forms, as promising candidate high‐order insulator. The...

10.1002/smsc.202300356 article EN cc-by Small Science 2024-03-15

DNA methylation was suggested as the promising biomarker for lung cancer diagnosis. However, it is a great challenge to search optimal combination of biomarkers obtain maximum diagnostic performance. In this study, we developed panel and validated their efficiency non-small cell (NSCLC) in large Chinese Han NSCLC retrospective cohort. Three high-throughput microarray datasets (458 samples) were collected discovery stage. After normalization, batch effect elimination integration,...

10.1186/s13148-014-0035-3 article EN cc-by Clinical Epigenetics 2015-01-21

The effectiveness and synergistic mechanisms of combining ultrasonic process (US) with peroxymonosulfate (PMS) were investigated using Bisphenol A (BPA) Dimethyl Phthalate (DMP) as the model pollutants. Synergy between US PMS improved degradation target pollutants, was found to play a dual role. optimum dosage extent efficiency promotion depend on not only frequency but also hydrophobicity scavenger quenching experiments electron paramagnetic resonance analysis indicated that OH responsible...

10.1016/j.ultsonch.2019.104749 article EN cc-by-nc-nd Ultrasonics Sonochemistry 2019-08-24

Topological semimetals and metals have been extensively studied in nonmagnetic materials, while those magnetic materials are still quite rare. Here, based on first-principles calculations, we reveal that a family of hexagonal compounds $X{\mathrm{TiO}}_{2}$ ($X$ = Li, Na, K, Rb) with ferromagnetic ground states host excellent topological electronic structures. In their low-energy band structures, they show two Weyl nodal loops surfaces, where each loop surface is contributed by the electron...

10.1103/physrevb.103.235140 article EN Physical review. B./Physical review. B 2021-06-17

The topological interpretation of phonons provides a new platform for concepts in phonon physics. While reports on electronic excitations are plenty, the number is extremely limited. In this paper, we present some realistic materials as examples and demonstrate appearance ideal nodal-net, nodal-chain, nodal-cage these based first-principle calculations; Pna21 LiAlSe2 has nodal-net phonon, which composed two nodal-chain along U-R U-Z directions; Pnma NaMgH3 extended Brillouin zone (BZ),...

10.1039/d2cp00731b article EN Physical Chemistry Chemical Physics 2022-01-01

Abstract When spin‐orbit coupling (SOC) is absent, all proposed half‐metals with twofold degenerate nodal points at the K (or K′) point in 2D materials are classified as “Dirac half‐metals” owing to way graphene utilized earliest studies. Actually, each band crossing or K′ described by a Weyl Hamiltonian definite chirality; hence, it should be point. To best of its knowledge, there have not yet been any reports genuine ( i . e ., fourfold degenerate) Dirac half‐metal. In this work, using...

10.1002/advs.202307297 article EN cc-by Advanced Science 2023-12-03

The conceptual framework of topological states has recently been extended to bosonic systems, particularly phononic systems. In this work, we chose the experimentally prepared two-dimensional (2D) Kekulé-order graphene as a target propose coexistence gapless and gapped phonon in its curves. This is first work investigate rich feasible 2D materials. For phonons, hosts real Chern insulator states, i.e., second-order corner vibrational modes inside frequency gaps at 27.96 37.065 THz. Weyl pair...

10.1063/5.0159948 article EN Applied Physics Reviews 2023-09-01

Abstract The emergence of various topological semimetal states presents a novel opportunity for enhancing the efficiency thermoelectric transport. This study introduces recipe to improve (TE) performance in materials containing single‐pair Weyl points (SP WPs) fermions and phonons. focuses on two key factors contributing enhancement TE performance: increase density achieve high power factor, introduction additional phonon scattering reduce lattice thermal conductivity. proposed is confirmed...

10.1002/aelm.202300874 article EN cc-by Advanced Electronic Materials 2024-02-05

It is well documented that N-methyl-D-aspartate and α-amino-3-hydroxy-5-methyl-4-isoxazole propionate receptors play a pivotal role in ischaemic brain injury. Recent studies have shown kainate (KA) are involved neuronal cell death induced by seizure, which mediated the GluR6•PSD-95•MLK3 signalling module subsequent c-Jun N-terminal kinase (JNK) activation. Here we investigate whether GluR6 JNK activation correlated with Our results show cerebral ischaemia followed reperfusion can enhance...

10.1093/brain/awh700 article EN Brain 2005-12-05

NH<sub>4</sub>F was used as a vital additive to control the morphology of Co<sub>3</sub>O<sub>4</sub> precursors through hydrothermal reaction, some novel growth mechanisms are proposed. materials were obtained <italic>via</italic> thermal decomposition for supercapacitor application.

10.1039/c6ra03400d article EN RSC Advances 2016-01-01

A new series of Zinc-based all-d-metal equiatomic quaternary Heusler hypothetical alloys ZnCdTMn (T = Fe, Ru, Os, Rh, Ir, Ni, Pd, Pt) were designed, and their ground state, electronic structures, magnetism, possible martensitic transformations, as well the competition between austenitic phase phase, studied in this work. have large magnetic moments, all larger than 3 µB, which mainly come from Mn atom due to its strong exchange splitting. It is worth noting that moment ZnCdFeMn quite...

10.1016/j.rinp.2018.11.024 article EN cc-by Results in Physics 2018-11-15

Polyphenylene sulfide (PPS) membranes were prepared<italic>via</italic>a thermally induced phase separation (TIPS) method.

10.1039/c6ra28762j article EN cc-by-nc RSC Advances 2017-01-01
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