Search Results - "Qi, Fengfeng"
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1
Light-induced dimension crossover dictated by excitonic correlations
Published in Nature communications (18-02-2022)“…In low-dimensional systems with strong electronic correlations, the application of an ultrashort laser pulse often yields novel phases that are otherwise…”
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2
Optical manipulation of electronic dimensionality in a quantum material
Published in Nature (London) (08-07-2021)“…Exotic phenomena can be achieved in quantum materials by confining electronic states into two dimensions. For example, relativistic fermions are realized in a…”
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3
Transient dynamics of the phase transition in VO2 revealed by mega-electron-volt ultrafast electron diffraction
Published in Nature communications (07-03-2023)“…Vanadium dioxide (VO 2 ) exhibits an insulator-to-metal transition accompanied by a structural transition near room temperature. This transition can be…”
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4
Terahertz Streaking of Few-Femtosecond Relativistic Electron Beams
Published in Physical review. X (08-06-2018)“…Streaking of photoelectrons with optical lasers has been widely used for temporal characterization of attosecond extreme ultraviolet pulses. Recently, this…”
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5
Photoinduced evolution of lattice orthorhombicity and conceivably enhanced ferromagnetism in LaMnO3 membranes
Published in npj quantum materials (20-04-2022)“…Ultrashort laser pulses have been utilized to dynamically drive phase transitions in correlated quantum materials. Of particular interest is whether phases not…”
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6
Transient dynamics of the phase transition in VO2 revealed by mega electron-volt ultrafast electron diffraction
Published 23-11-2023“…Nature Communications 14:1265 (2023) Vanadium dioxide (VO2) exhibits an insulator-to-metal transition accompanied by a structural transition near room…”
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7
Ultrafast formation of topological defects in a 2D charge density wave
Published 10-11-2022“…Nature Physics 20, 54 (2024) Topological defects play a key role in nonequilibrium phase transitions, ranging from birth of the early universe to quantum…”
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8
Breaking 50 Femtosecond Resolution Barrier in MeV Ultrafast Electron Diffraction with a Double Bend Achromat Compressor
Published in Physical review letters (03-04-2020)“…We propose and demonstrate a novel scheme to produce ultrashort and ultrastable MeV electron beam. In this scheme, the electron beam produced in a photocathode…”
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9
Movie-mode visualization of terahertz fields inside subwavelength metallic structures using ultrashort relativistic electrons
Published in Applied physics letters (13-06-2022)“…Strong terahertz (THz) fields enhanced by subwavelength structures have great potential in manipulating the 6D phase space distribution of free electrons…”
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10
Ultrafast isolated molecule imaging without crystallization
Published in Proceedings of the National Academy of Sciences - PNAS (12-04-2022)“…Crystallography is the standard for determining the atomic structure of molecules. Unfortunately, many interesting molecules, including an extensive array of…”
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11
Optical manipulation of electronic dimensionality in a quantum material
Published 08-07-2021“…Nature 595, 239 (2021) Exotic phenomenon can be achieved in quantum materials by confining electronic states into two dimensions. For example, relativistic…”
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12
Femtosecond diagnostics of ultrashort electron beam using a pinhole-based THz-driven deflector
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-10-2022)“…THz-driven resonant structures such as rectangular slits has been widely used for femtosecond temporal characterization of ultrashort electron beams produced…”
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13
A rare inherited homozygous missense variant in PLA2G6 influences susceptibility to infantile neuroaxonal dystrophy: a case report
Published in Translational pediatrics (27-03-2024)“…Infantile neuroaxonal dystrophy (INAD) is an ultra-rare early-onset autosomal recessive neurodegenerative disorder due to variants. The clinical symptoms of…”
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14
Ultrafast formation of topological defects in a two-dimensional charge density wave
Published in Nature physics (01-01-2024)“…Topological defects play a central role in dynamical systems undergoing a non-adiabatic transition. In solids, topological defects as a result of femtosecond…”
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15
Experimental optimization for dual support structures cone flow meters based on cone wake flow field characteristics
Published in Sensors and actuators. A. Physical. (01-08-2015)“…•Vortex structure in wake flow of cone flow meter is cone vortex ring.•We have numerically investigated the characteristics of cone vortex rings.•A way…”
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16
Achieving 50 femtosecond resolution in MeV ultrafast electron diffraction with a double bend achromat compressor
Published 18-03-2020“…We propose and demonstrate a novel scheme to produce ultrashort and ultrastable MeV electron beam. In this scheme, the electron beam produced in a photocathode…”
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17
Genetic analysis of a rare case of Pitt-Hopkins syndrome due to partial deletion of TCF4 gene
Published in Zhonghua yi xue yi chuan xue za zhi (10-04-2020)“…To explore the genetic basis for a child featuring delayed intellectual development. The child and his parents were subjected to conventional G-banding…”
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18
Clinical phenotype and genetic analysis of a child featuring short stature and multiple skeletal dysplasia
Published in Zhonghua yi xue yi chuan xue za zhi (10-02-2024)“…To analyze the clinical phenotype and genetic basis for a child featuring familial short stature. A child who was admitted to Huzhou Maternal and Child Health…”
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19
Transient dynamics of the phase transition in VO 2 revealed by mega-electron-volt ultrafast electron diffraction
Published in Nature communications (07-03-2023)“…Vanadium dioxide (VO ) exhibits an insulator-to-metal transition accompanied by a structural transition near room temperature. This transition can be triggered…”
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20
Performance measurement analysis of various cone flow meters with various beta edge types and flow field parameters
Published in Flow measurement and instrumentation (01-10-2015)“…The beta edge, as one part of the cone element in cone flow meters, has several types. Cone flow meters with different beta edges have different applications…”
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