Written by Kaiser Kuo's daughter. Apparently complete lack of self-awareness is a heritable trait.
News on China's scientific and technological development.
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Wondering if the two are related:
Highly unlikely, condensed matter is a big area of research. Xue QiKun's research specialty is not related to batteries.
A Chinese article about him winning the award.
For what it's worth, a while back I got a chance to chat with him privately during a smoke break. He was trying to convince overseas Chinese to come back to homeland to build the country, very patriotic guy.
He was, and still is? VP of research at Tsinghua. I know many of us know or heard of stories of talented people from Tsinghua who just leave China for grad or post grad for good. There are some memes about Tsinghua being a US university Chinese feeder school on the Chinese internet, but I just wanted to share a personal anecdote that there are still many patriotic researchers who work at Tsinghua.
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Q-EDA, the domestically produced electronic chip design industrial software of Benyuan Keyi, completes its fourth technology iteration
Core tip: Recently, reporters learned from the Anhui Provincial Key Laboratory of Quantum Computing Chips that Benyuan Keyi (Chengdu) Technology Co., Ltd. (hereinafter referred to as Benyuan Keyi), a quantum subsidiary of our city’s enterprise, has completely
Recently, reporters learned from the Anhui Provincial Key Laboratory of Quantum Computing Chips that the domestically produced quantum chip design industrial software Q -EDA (Quantum Electronic Design Automation) "Original Kunyuan" has completed its fourth technology iteration, laying an important foundation for my country's independent research and development and industrial production of quantum chips.
Chip design is inseparable from EDA (Electronic Design Automation) software, EDA refers to the use of computer-aided design software to complete the design of very large-scale integrated circuit chips. It can increase the efficiency of chip design hundreds of times.
"Q-EDA is a necessary tool for efficient large-scale quantum chip engineering design. If quantum chip design is compared to building a house, then for this 'house' we need to design several bedrooms, several halls, and what functions the different rooms have. These requirements All gathered on one drawing, which is the main work completed by Q-EDA, and the house will be 'built' based on this 'drawing' later." Li Shuxiao, general manager of Benyuan Keyi, said that the Q-EDA software of Benyuan Kunyuan can It also supports automated design of superconducting and semiconductor quantum chips.
Li Shuxiao said that under this industry background, Kunyuan Q-EDA, the origin of domestic electronic chip design industrial software, needs to continue to be optimized. “Since its release in 2022, Benyuan Kunyuan Q-EDA software has gone through three iterations, starting from supporting basic drawing needs, to meeting multi-user collaboration, and providing one-stop functions for users such as schematic diagrams. This is the fourth update. "
Li Shuxiao introduced that this update of the Origin Kunyuan Q-EDA software has added a PDK writing function, which can guide and standardize users’ design methods and processes. At the same time, the software can now check the completed design to ensure that it meets the process factory's requirements for tape-out data. In multi-person collaboration mode, user rights management can be refined to each unit.
It is worth noting that the progress made by our country's scientific researchers in domestically produced quantum chip production hardware equipment is also accelerating.
It is understood that Origin Quantum has currently manufactured the first domestic "Fire Eye" (NDPT-100 non-destructive probe instrument) for non-destructive testing of quantum chips, and the first quantum chip laser "scalpel" (MLLAS-100 laser) for repairing quantum chips. annealing apparatus). "Just like the photolithography machine is one of the industrial mother machines for traditional chip manufacturing, the above two equipment are also necessary tools for the production of quantum chips." said Jia Zhilong, deputy director of the Anhui Provincial Quantum Computing Engineering Research Center.
These achievements have laid a solid foundation for the future of quantum chips made in China. Jia Zhilong said that "Original Kunyuan" Q-EDA supports the software interface of quantum chip industrial mother machines such as laser annealing instruments and non-destructive probe instruments, realizing the integration and collaboration of the entire tool chain from design to manufacturing of Chinese-made quantum chips. The deep integration of software and hardware makes the design and manufacturing process of quantum chips more systematic, complete and efficient.
It must be quiet sad for him personally that the first author of his famed experimental paper on topological materials, Chang Cui-Zu left China after completing his PhD at Tsinghua to become a faculty at Penn State
During the 6th Graphene Conference, Beijing Graphene Institute (BGI) released 3 new products on the institute's 5th anniversary. One of them is dubbed as "super graphene-coated glass fiber fabric" which has already been in military use (I am assuming by PLA).
Another new product is their 3rd generation of production line for making this specific fabric. It is the world's first of kind that can produce the fabric in 1-meter level width, from reel to reel (not sure what it means), with the output of 20000 square meters per year, 5 times of the competitions on the market.
I also found this Swedish company talking about their "graphene-coated glass fiber composite" materials. Not sure if it is of the exactly same kind as BGI's. From their descriptions, coating glass fibers with graphene can have quite some amazing benefits.
Another new product is their 3rd generation of production line for making this specific fabric. It is the world's first of kind that can produce the fabric in 1-meter level width, from reel to reel (not sure what it means), with the output of 20000 square meters per year, 5 times of the competitions on the market.
I also found this Swedish company talking about their "graphene-coated glass fiber composite" materials. Not sure if it is of the exactly same kind as BGI's. From their descriptions, coating glass fibers with graphene can have quite some amazing benefits.
One more "neck-choking" item struk down.
China produced its first kilogram-scale high purity (99%) Molybdenum-100 isotope. There are only "very few countries" (less than 5?) with the kilogram production capacity of Molybdenum isotopes.
钼（Mo）同位素在核医学、基础物理、先进核燃料等研究领域有着广泛的应用前景。在核医学领域，高丰度钼-98和钼-100同位素是生产放射性同位素钼-99的前置核素，钼-99进一步衰变生成锝-99m，是目前核医学中应用最为广泛的诊断用放射性核素。在基础物理领域，高丰度钼-100同位素应用于无中微子双β衰变实验，该实验研究是当前国际粒子物理与核物理研究的重要前沿课题，对探究中微子基础性质、揭示宇宙演化过程具有重要意义。在先进核燃料研究领域，贫化钼-95因熔点比主流核燃料包壳材料—锆高出760℃，可制造更耐高温的核燃料组件，大幅提升核燃料组件的安全性能，为核电事业安全绿色发展提供保障。
为满足国内市场需求，改变钼同位素材料长期依赖进口和供应不足的局面，中核集团科研团队基于近30年持续研发经验，大胆创新，突破同位素分离过程中卡脖子关键技术，首次获得了公斤级同位素丰度达到99%的钼-100同位素产品，填补国内该技术领域空白，为保障人民健康、推动科技进步、提升核电安全奠定坚实基础。
China produced its first kilogram-scale high purity (99%) Molybdenum-100 isotope. There are only "very few countries" (less than 5?) with the kilogram production capacity of Molybdenum isotopes.
我国首次获得公斤级钼同位素，改变长期完全依赖进口局面
微信公众号“中核集团”10月25日消息，近日，中核集团核理化院/公司通过自主研发首次获得公斤级丰度99%钼-100同位素，这是我国首次实现钼同位素关键材料自主化供应的重大突破，改变了长期以来钼同位素完全依赖进口的局面，标志着我国在高丰度稳定同位素研究领域达到了世界领先水平，成为世界上极少数可以批量获得钼同位素的国家。钼（Mo）同位素在核医学、基础物理、先进核燃料等研究领域有着广泛的应用前景。在核医学领域，高丰度钼-98和钼-100同位素是生产放射性同位素钼-99的前置核素，钼-99进一步衰变生成锝-99m，是目前核医学中应用最为广泛的诊断用放射性核素。在基础物理领域，高丰度钼-100同位素应用于无中微子双β衰变实验，该实验研究是当前国际粒子物理与核物理研究的重要前沿课题，对探究中微子基础性质、揭示宇宙演化过程具有重要意义。在先进核燃料研究领域，贫化钼-95因熔点比主流核燃料包壳材料—锆高出760℃，可制造更耐高温的核燃料组件，大幅提升核燃料组件的安全性能，为核电事业安全绿色发展提供保障。
为满足国内市场需求，改变钼同位素材料长期依赖进口和供应不足的局面，中核集团科研团队基于近30年持续研发经验，大胆创新，突破同位素分离过程中卡脖子关键技术，首次获得了公斤级同位素丰度达到99%的钼-100同位素产品，填补国内该技术领域空白，为保障人民健康、推动科技进步、提升核电安全奠定坚实基础。
Yet another "hole" in domestic scientific instruments has been plugged.
Paper:
News story:
该小型荧光光谱仪基于发明的导光金属毛细管技术，可大幅提高荧光检测的信噪比，因此能够采用便宜微型的LD或LED作为激发光源，以取代昂贵笨重的氩离子激光器或大功率氙灯。同时，合作团队还发明了荧光光谱的同步校准技术，可克服光源功率波动和样品吸收导致的干扰。
目前，研制的光谱仪已通过国家计量院的鉴定，并在国家海洋环境监测中心（大连）进行测试和试用。检测精度超过国外主流高端产品，海洋溢油检测指标处于国际领先水平。其水体有机碳TOC的检测精度达4ng/mL，可媲美大型专业仪器。
Paper:
Compact Fluorescence Spectrometer with Built-In In-Line Calibration: Application to Detect Dissolved Organic Matter in Water
Abstract
Fluorescence spectrometer (FS) is widely used for component analysis because each fluorescing material has its own characteristic spectrum. However, the spectral calibration is complicated and bulky. Herein, an in-line spectral calibration sheet (ISCS) was proposed in which a narrow band-pass filter and a linear variable filter (LVF) were integrated on a metal plate. By moving the ISCS, the transmitted excitation light power (TEP) as well as fluorescence spectrum can be seamlessly scanned, and the TEP can be used for in-line spectral calibration. A compact FS apparatus based on UV-LED excitation, metal capillary (MC) and ISCS was fabricated (i.e., ISCS-FS), and the ISCS-FS apparatus was applied to detect sodium humate in water. By employing TEP calibration, both the primary inner filter effect (PIFE) and the drift in the optical power of UV-LED can be simultaneously compensated. The linear correlation coefficient of signal concentration was improved from 0.89 to 0.998, and the relative standard deviation (RSD) of replicated detection was improved from 3 to 0.7%. A detection limit of concentration (DLC) of 1.3 μg/L was realized, which is 15-fold lower than that of a commercial FS apparatus (20 μg/L). The DLC is even comparable with that (0.5–4 μg/L) of commercial total organic carbon (TOC) analyzers, which are bulky and expensive. The linear correlation between the measurement results of ISCS-FS and commercial TOC analyzers can reach a good value of 0.94.News story:
科学家发明皮摩尔级小型荧光光谱仪
利用紫外激发产生特征荧光的原理，用于测试微量物质的含量与成分，是当前最灵敏的痕量检测方法之一，在生命科学、食品安全和环境监测中具有重要应用。但在这一领域，国产高端仪器仍是空白。大连理工大学黄辉教授课题组与范剑超教授、赵剑教授和刘蓬勃副教授合作，发明了一种小型高灵敏度的荧光光谱仪。相关成果发表在《分析化学》。该小型荧光光谱仪基于发明的导光金属毛细管技术，可大幅提高荧光检测的信噪比，因此能够采用便宜微型的LD或LED作为激发光源，以取代昂贵笨重的氩离子激光器或大功率氙灯。同时，合作团队还发明了荧光光谱的同步校准技术，可克服光源功率波动和样品吸收导致的干扰。
目前，研制的光谱仪已通过国家计量院的鉴定，并在国家海洋环境监测中心（大连）进行测试和试用。检测精度超过国外主流高端产品，海洋溢油检测指标处于国际领先水平。其水体有机碳TOC的检测精度达4ng/mL，可媲美大型专业仪器。
CAS pushed elemental superconductivity above 30K.
"Densely compressed scandium becomes the first elemental superconductor with critical temporarty breaks into the 30K range."
The same team set the previous record of 26K with titanium in 2022.
Preview of the paper:
News release:
钪：迈进30K温区的首个元素超导体
元素超导既益于超导机制研究又方便应用加工，寻找高超导温度（Tc）的元素超导体具有重要科学意义和潜在应用前景。2022年靳常青团队实验发现钛(Ti)元素在高压呈现26 K的超导转变(Nature Commun. 13, 5411(2022))，刷新了此前保持近20年的元素超导温度记录。在以上研究基础上，团队近期独立发现钪(Sc)元素在高压呈现高于30 K的超导转变，钪和钛为毗邻元素，钪为目前唯一进入30 K温区的元素超导体。
中国科学院物理研究所/北京凝聚态物理国家研究中心靳常青团队长期开展高压极端条件新材料制备及功能构效研究，设计研发了具有自主知识产权的先进的高压综合极端条件实验装置，可进行超高压合成和在位综合物性表征。运用以上极端条件技术，他们相继揭示了系列高压诱发的极端条件材料构效，包括金属间化合物、合金和富氢化合等新兴量子功能材料体系 (PNAS 116, 12156(2019)、 Nature Commun. 13, 5411(2022)、Nature Commun. 13, 2863(2022)、Sci Bull 67, 907(2022)、Mat Today Phys 27, 100826(2022)、Sci China Phys Mech 66, 267411(2023)、NPG Asia Materials 11, 60(2019)、NPG Asia Materials 15, 52(2023)。
近期，他们实验进一步发现，钪元素的超导温度随着压力持续增加（图1）。根据超导转变随外加磁场的变化，估算钪元素在32 K 超导温度的上临界场μ0Hc2(0)约为43 Tesla，对应Ginzburg Landau超导相干长度为27 Å（图2）。钪元素的高压超导温度和上临界场优于商业化并被广泛应用的NbTi合金超导体（Tc~9.6 K，μ0Hc2(0)~ 15 T）。同步辐射高压结构表征揭示，钪元素在高压呈现序列结构相变，在240 GPa压力具有六方晶体结构。晶体和电子结构研究表明，高压将引起钪的4s和3d轨道相对能级的变化，导致部分4s电子向3d轨道跃迁，调控了费米能级的态密度。轨道序的改变诱发系列晶体结构相变，晶体结构不稳定性进一步增强了体系电声耦合，促进超导转变温度的提高。以上研究为设计研制具有更高温度的超导材料提供了新方案，通过引入化学预压等方法将有望在低(常)压截获性能优良的高压超导亚稳相，为元素超导材料的规模化应用提供可能。
以上研究工作发表在Chin. Phys. Lett. 40, 107403 (2023) (Express Letters)上，中国科学院物理研究所博士生何鑫和张昌玲为文章共同一作，靳常青研究员和望贤成研究员为论文通讯作者。研究得到北京高压科学技术中心刘浩哲研究员团队在高压材料结构实验方面密切合作，加拿大Saskatchewan大学的J. S. Tse教授在理论计算方面给予重要配合。研究得到基金委、科技部和中科院项目的资助。
"Densely compressed scandium becomes the first elemental superconductor with critical temporarty breaks into the 30K range."
The same team set the previous record of 26K with titanium in 2022.
Preview of the paper:
Superconductivity above 30 K achieved in dense scandium
Superconductivity is one of most intriguing quantum phenomena, and the quest for elemental superconductors with high critical temperature (Tc) is of great scientific significance due to their relatively simple material composition and the underlying mechanism. Here we report the experimental discovery of densely compressed scandium (Sc) becoming the first elemental superconductor with Tc breaking into 30 K range, which is comparable to the Tc values of the classic La-Ba-Cu-O or LaFeAsO superconductors. Our results show that Tconset of Sc increases from ~3 K at around 43 GPa to ~32 K at about 283 GPa (Tczero ~ 31 K), which is well above liquid neon temperature. Interestingly measured Tc shows no sign of saturation up to the maximum pressure achieved in our experiments, indicating that Tc might be even higher upon further compression.News release:
钪：迈进30K温区的首个元素超导体
元素超导既益于超导机制研究又方便应用加工，寻找高超导温度（Tc）的元素超导体具有重要科学意义和潜在应用前景。2022年靳常青团队实验发现钛(Ti)元素在高压呈现26 K的超导转变(Nature Commun. 13, 5411(2022))，刷新了此前保持近20年的元素超导温度记录。在以上研究基础上，团队近期独立发现钪(Sc)元素在高压呈现高于30 K的超导转变，钪和钛为毗邻元素，钪为目前唯一进入30 K温区的元素超导体。
中国科学院物理研究所/北京凝聚态物理国家研究中心靳常青团队长期开展高压极端条件新材料制备及功能构效研究，设计研发了具有自主知识产权的先进的高压综合极端条件实验装置，可进行超高压合成和在位综合物性表征。运用以上极端条件技术，他们相继揭示了系列高压诱发的极端条件材料构效，包括金属间化合物、合金和富氢化合等新兴量子功能材料体系 (PNAS 116, 12156(2019)、 Nature Commun. 13, 5411(2022)、Nature Commun. 13, 2863(2022)、Sci Bull 67, 907(2022)、Mat Today Phys 27, 100826(2022)、Sci China Phys Mech 66, 267411(2023)、NPG Asia Materials 11, 60(2019)、NPG Asia Materials 15, 52(2023)。
近期，他们实验进一步发现，钪元素的超导温度随着压力持续增加（图1）。根据超导转变随外加磁场的变化，估算钪元素在32 K 超导温度的上临界场μ0Hc2(0)约为43 Tesla，对应Ginzburg Landau超导相干长度为27 Å（图2）。钪元素的高压超导温度和上临界场优于商业化并被广泛应用的NbTi合金超导体（Tc~9.6 K，μ0Hc2(0)~ 15 T）。同步辐射高压结构表征揭示，钪元素在高压呈现序列结构相变，在240 GPa压力具有六方晶体结构。晶体和电子结构研究表明，高压将引起钪的4s和3d轨道相对能级的变化，导致部分4s电子向3d轨道跃迁，调控了费米能级的态密度。轨道序的改变诱发系列晶体结构相变，晶体结构不稳定性进一步增强了体系电声耦合，促进超导转变温度的提高。以上研究为设计研制具有更高温度的超导材料提供了新方案，通过引入化学预压等方法将有望在低(常)压截获性能优良的高压超导亚稳相，为元素超导材料的规模化应用提供可能。
以上研究工作发表在Chin. Phys. Lett. 40, 107403 (2023) (Express Letters)上，中国科学院物理研究所博士生何鑫和张昌玲为文章共同一作，靳常青研究员和望贤成研究员为论文通讯作者。研究得到北京高压科学技术中心刘浩哲研究员团队在高压材料结构实验方面密切合作，加拿大Saskatchewan大学的J. S. Tse教授在理论计算方面给予重要配合。研究得到基金委、科技部和中科院项目的资助。