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| 1 | Charge density wave phase suppression in 1T-TiSe_(2) through Sn intercalation显示文摘Taking advantage of the unique layered structure of TiSe2,the intrinsic electronic properties of two-dimensional materials can easily be tuned via heteroatomic engineering.Herein,we show that the charge density wave(CDW)phase in 1T-TiSe_(2) single-crystals can be gradually suppressed through Sn atoms intercalation.Using angle-resolved photoemission spectroscopy(ARPES)and temperature-dependent resistivity measurements,this work reveals that Sn atoms can induce charge doping and modulate the intrinsic electronic properties in the host 1T-TiSe_(2).Notably,our temperature-dependent ARPES results highlight the role exciton-phonon interaction and the Jahn-Teller mechanism through the formation of backfolded bands and exhibition of a downward Se shift of 4p valence band in the formation of CDW in this material. | Mukhtar Lawan Adam Hongen Zhu Zhanfeng Liu Shengtao Cui Pengjun Zhang Yi Liu Guobin Zhang Xiaojun Wu Zhe Sun Li Song | 2022 | Nano Research2022，15，3： | 1 |
| 2 | OPERATOR SPLITTING SCHEMES FOR THE NON-STATIONARY THERMAL CONVECTION PROBLEMS显示文摘在这个工作,一个新数字计划被建议为热 / 等温不可压缩粘滞基于操作员切开流动。唯一的解决之可能性和介绍的稳定性分析斧子。某数字结果被给,它证明建议计划是高度有效的为热 / 等温不可压缩粘滞流动。[从作者抽象] | Hongen Jia Kaitai Li Haiyan Sun | 2011 | Journal of Computational Mathematics2011，29，4： | 0 |
| 3 | Novel concepts of mechanical technology for gas recovery from marine hydrate reservoir显示文摘According to the characteristics of marine natural gas hydrate,China has proposed the solid-state fluidization exploitation technology or natural gas hydrate,with subsea exploitation being key to the commercial recovery of gas.In this paper,two new integrated tools are proposed for breaking and collecting natural gas hydrate,and their working principles and steps are illustrated.Finite element analysis,three-dimensional modeling,and simulations were conducted for both exploitation tools to verify their technological feasibility.The results show that the two exploitation tools can effectively improve the efficiency of hydrate exploitation and ensure the stability of the hydrate reservoir.This provides a reference for further research on the solid-state fluidization exploitation technology of marine gas hydrates. | Yuting Men Zhen Song Ying Sun Kaili Li Xianlin Qing Hongen Sun Meng Zhou | 2023 | International Journal of Coal Science & Technology2023，10，3： | 0 |
| 4 | A non-rigid shift of band dispersions induced by Cu intercalation in 2H-TaSe2显示文摘The intercalation of metal is a promising method for the modulating electronic properties in transition metal dichalcogenides(TMDs).However,there still lacks enough knowledge about how the intercalated atoms directly impact the two-dimensional structural layers and modulate the band structures therein.Taking advantage of X-ray absorption fine structure and angle-resolved photoemission spectroscopy,we studied how Cu intercalation influences the host TaSe2 layers in Cu0.03TaSe2 crystals.The intercalated Cu atoms form bonds with Se of the host layers,and there is charge transfer from Cu to Se.By examining the changes of band dispersions,we show that the variation of electronic structures is beyond a simple rigid band model with merely charge doping effect.This work'reveals that the unusual change of band dispersions is associated with the formation of bonds between the intercalated metal elements and anion ions in the host layers,and provides a reference for the comprehensive understanding of the electronic structures in intercalated materials. | Pengdong Wang Rashid Khan Zhanfeng Liu Bo Zhang Yuliang Li Sheng Wang Yunbo Wu Hongen Zhu Yi Liu Guobin Zhang Dayong Liu Shuangming Chen Li Song Zhe Sun | 2020 | Nano Research2020，13，2： | 0 |
| 5 | Persistence of charge density wave against variation of band structures in V_(x)Ti_(1−x)Se_(2)(x=0–0.1)显示文摘Charge density wave(CDW)is a phenomenon that occurs in materials,accompanied by changes in their intrinsic electronic properties.The study of CDW and its modulation in materials holds tremendous significance in materials research,as it provides a unique approach to controlling the electronic properties of materials.TiSe_(2) is a typical layered material with a CDW phase at low temperatures.Through V substitution for Ti in TiSe_(2),we tuned the carrier concentration in V_(x)Ti_(1-x)Se_(2) to study how its electronic structures evolve.Angle-resolved photoemission spectroscopy(ARPES)shows that the band-folding effect is sustained with the doping level up to 10%,indicating the persistence of the CDW phase,even though the band structure is strikingly different from that of the parent compound TiSe_(2).Though CDW can induce the band fold effect with a driving force from the perspective of electronic systems,our studies suggest that this behavior could be maintained by lattice distortion of the CDW phase,even if band structures deviate from the electron-driven CDW scenario.Our work provides a constraint for understanding the CDW mechanism in TiSe_(2),and highlights the role of lattice distortion in the band-folding effect. | Zhanfeng Liu Tongrui Li Wen Zhu Hongwei Shou Mukhtar Lawan Adam Qilong Cui Yuliang Li Sheng Wang Yunbo Wu Hongen Zhu Yi Liu Shuangming Chen Xiaojun Wu Shengtao Cui Li Song Zhe Sun | 2024 | Nano Research2024，17，3： | 0 |
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