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| 1 | Dynamical decoupling of electron spins in phosphorus-doped silicon显示文摘Quantum coherence is an important enabling feature underpinning quantum computation. However, because of couplings with its noisy surrounding environment, qubits suffer from the decoherence effects. The dynamical decoupling (DD) technique uses pulse-induced qubit flips to effectively mitigate couplings between qubits and environment. Optimal DD eliminates dephasing up to a given order with the minimum number of pulses. In this paper, we first introduce our recent work on prolonging electron spin coherence in γ-irradiated malonic acid crystals and analyze different decoherence mechanisms in this solid system. Then we focus on electron spin relaxation properties in another system, phosphorous-doped silicon (Si:P) crystals. These properties have been investigated by pulse electron paramagnetic resonance (EPR). We also investigate the performance of the dynamical decoupling technique on this system. Using 8-pulse periodic DD, the coherence time can be extended to 296 μs compared with 112 μs with one-pulse control. | RONG Xing WANG Ya YANG JiaHui ZHU JinXian XU WanJie FENG PengBo WEN XuJie SU JiHu DU JiangFeng | 2011 | Chinese Science Bulletin2011，56，7： | 4 |
| 2 | A modified couple stress model for bending analysis of composite laminated beams with first order shear deformation 显示文摘 | Chen Wanji Li Li Ma Xu | 2011 | Compos Struct2011，93，： | 1 |
| 3 | A modified couple stress model for bending analysis of composite laminated beams with first order shear deformation 显示文摘 | Chen Wanji Li Li Ma Xu | 2011 | Compos Struct2011，，93： | 1 |
| 4 | Origin of the cusp phenonenon of the coercivity curve of the Ston er-Wohlfarth magnet under stress显示文摘 | Guo ZiZheng Xiong WanJie Xu ChuDong | | submitted to Physica Scripta0，，： | 1 |
| 5 | High-Performance Natural Melanin/Poly(vinyl Alcohol-co-ethylene) Nanofibers/PA6 Fiber for Twisted and Coiled Fiber-Based Actuator显示文摘Twisted and coiled fiber-based actuators have drawn a great attention because their unique structure can provide mechanical response with the external thermal stimulus.Herein,an ultra-fast and light-weight twisted and coiled fiber-based actuator was designed based on a nature melanin/poly(vinyl alcohol-co-ethylene)(PVA-co-PE)nanofibers/PA6 composite fiber.In brief,PA6 was firstly coated by melanin/PVA-co-PE nanofibers using a spraying method,followed by the twisting and coat-ing the composite fiber to obtain the actuator.The excellent photothermal property of melanin contributed to the superior performance of the actuator,whereas the PVA-co-PE nanofibers was responsible for the uniform distribution of melanin and the enhanced mechanical property of the prepared-actuator.This unique design has led to the high performance of the melanin/NFs/PA6 fiber-based actuator,whose torsion actuation can reach to 14,000 rpm,and maximum tensile actuation was−6.36%at temperature difference of 40℃.In addition,the tensile stress of PA6/NFs/melanin fiber was about four times higher than PA6 filaments.Owing to the simple and environmental-benign preparation method,as well as the excellent effi-ciency of twisted and coiled melanin/NFs/PA6 fiber-based actuator,this study highlights the facile design of the composite fiber for high-performance fiber-based actuators.This fiber-based actuator is promising for application in energy generator. | Jiahui Chen Esfandiar Pakdel Wanjie Xie Lu Sun Mengyuan Xu Qiongzhen Liu Dong Wang | 2020 | Advanced Fiber Materials2020，2，2： | 0 |
| 6 | Fluorescence emission difference microscopy based on polarization modulation显示文摘In this paper,we propose a new fluorescence emission difference microscopy(FED)technique based on polarization modulation.An electro-optical modulator(EOM)is used to switch the excitation beam between the horizontal and vertical polarization states at a high frequency,which leads to solid-and donut-shaped beams after spatial light modulation.Experiment on the fluorescent nanoparticles demonstrates that the proposed method can achieve~λ=4 spatial resolution.Using the proposed system,the dynamic imaging of subcellular structures in living cells over time is achieved. | Wanjie Dong Yuran Huang Zhimin Zhang Liang Xu Cuifang Kuang Xiang Hao Xu Liu | 2022 | Journal of Innovative Optical Health Sciences2022，15，5： | 0 |
| 7 | Fast Bulky Anion Conduction Enabled by Free Shuttling Phosphonium Cations显示文摘Highly conductive anion-exchange membranes(AEMs)are desirable for applications in various energy storage and conversion technologies.However,conventional AEMs with bulky HCO3-or Br-as counterion generally exhibit low conductivity because the covalent bonding restrains the tethered cationic group’s mobility and rotation.Here,we report an alternative polyrotaxane AEM with nontethered and free-shuttling phosphonium cation.As proved by temperature-dependent NMR,solid-state NMR,and molecular dynamics simulation,the phosphonium cation possesses a thermally trigged shuttling behavior,broader extension range,and greater mobility,thus accelerating the diffusion conduction of bulky anions.Owing to this striking feature,high HCO_(3)-conductivity of 105 mS cm^(-1) at 90℃ was obtained at a relatively lower ion-exchange capacity of 1.17 mmol g^(-1).This study provides a new concept for developing highly conductive anion-exchange membranes and will catalyze the exploration of new applications for polyrotaxanes in ion conduction processes. | Xiaolin Ge Yubin He Kaiyu Zhang Xian Liang Chengpeng Wei Muhammad A.Shehzad Wanjie Song Zijuan Ge Geng Li Weisheng Yu Liang Wu Tongwen Xu | 2022 | Research2022，，1： | 0 |
| 8 | Fast Bulky Anion Conduction Enabled by Free Shuttling Phosphonium Cations显示文摘Highly conductive anion-exchange membranes(AEMs)are desirable for applications in various energy storage and conversion technologies.However,conventional AEMs with bulky HCO_(3)^(-)or Br-as counterion generally exhibit low conductivity because the covalent bonding restrains the tethered cationic group’s mobility and rotation.Here,we report an alternative polyrotaxane AEM with nontethered and free-shuttling phosphonium cation.As proved by temperature-dependent NMR,solid-state NMR,and molecular dynamics simulation,the phosphonium cation possesses a thermally trigged shuttling behavior,broader extension range,and greater mobility,thus accelerating the diffusion conduction of bulky anions.Owing to this striking feature,high HCO_(3)^(-)conductivity of 105 mS cm^(-1)at 90℃ was obtained at a relatively lower ion-exchange capacity of 1.17 mmol g^(-1).This study provides a new concept for developing highly conductive anion-exchange membranes and will catalyze the exploration of new applications for polyrotaxanes in ion conduction processes. | Xiaolin Ge Yubin He Kaiyu Zhang Xian Liang Chengpeng Wei Muhammad A.Shehzad Wanjie Song Zijuan Ge Geng Li Weisheng Yu Liang Wu Tongwen Xu | 2021 | Research2021，，1： | 0 |
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