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Strong Anisotropic Order Parameters at All-Nitride Ferromagnet/Superconductor Interfaces

Chinese Physics Letters 2024年第2期41卷 102-111页

作者： Qiao Jin Meng Yang guozhu song Nan Zhao Shengru Chen Haitao Hong Ting Cui Dongke Rong Qianying Wang Yiyan Fan Chen Ge Can Wang Jiachang Bi Yanwei Cao Liusuo Wu Shanmin Wang Kui-Juan Jin Zhi-Gang Cheng Er-Jia Guo Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing 100190China Department of Physics&Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Department of Physics Southern University of Science and TechnologyShenzhen 518055China songshan Lake Materials Laboratory Dongguan 523808China Ningbo Institute of Materials Technology&Engineering Chinese Academy of SciencesNingbo 315201China

Proximity effects between superconductors and ferromagnets(SC/FM)hold paramount importance in comprehending the spin competition transpiring at their *** competition arises from the interplay between Cooper pairs and ferromagnetic exchange *** proximity effects between transition metal nitrides(TMNs)are scarcely investigated due to the formidable challenges of fabricating high-quality SC/FM *** fabricated heterostructures comprising SC titanium nitride(TiN)and FM iron nitride(Fe_(3)N)with precise chemical compositions and atomically well-defined *** magnetoresistance of Fe_(3)N/TiN heterostructures shows a distinct magnetic anisotropy and strongly depends on the external ***,the superconducting transition temperatureT_(C) and critical field of TiN experience notable suppression when proximity to Fe_(3)*** observe the intriguing competition of interfacial spin orientations near𝑇T_(C)(∼1.25 K).These findings not only add a new materials system for investigating the interplay between superconductor and ferromagnets,but also potentially provide a building block for future research endeavors and applications in the realms of superconducting spintronic devices.

关键词： proximity Superconductor titanium

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AN EXPONENTIAL STABILITY PROBLEM ON THE SMALL DELAY LINEAR SYSTEM

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Acta Mathematica Scientia 1997年第4期17卷 376-384页

作者：宋国柱沈隽皓 Department of Mathematics Nanjing University Nanjing 210008 China

In this paper, we define the mild solution of the delay system, and consider the existence and uniqueness of the mild solution of the delay system. The relationship between the solution csf linear system and the one of the delay system will be considered. And we also discuss the exponential stability equivalence between the solution of the linear system and the mild solution of the delay system.

关键词： delay system (C-0) semigroup (1,A) semigroup exponential stability

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MULTIVALUED PERTURBATION TO NONLINEAR DIFFERENTIAL INCLUSIONS WITH MEMORY IN BANACH SPACES

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Chinese Annals of Mathematics,Series B 1996年第2期17卷 237-244页

作者： XUEXINGMEI songguozhu DepartmentofMathemtics＆Mechanics SoutheastUniversityNanjing210018China. DepartmentofMathematics NanjingUniversityNanjing210008China.

The authors give the existence results to the nonlinear differential inclusion u'(t)∈ Au(t)+F(t,ut), where Ais a gangrator of equicontinuous semigroup and F is multivalued.

关键词：微分包含存储等度连续半群 Housdorff测度 Kamke函数

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A　NOTE　OF　UNIFORM　EXPONENTIAL　STABILIZATION　FOR　NONCONTRACTIVE　SEMIGROUPS　UNDER　COMPACT　PERTURBATION

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Acta Mathematica Scientia 1994年第1期14卷 95-99页

作者：宋国柱 Dept. of Math. Nanjing Univ. Nanjing 210008 China

Let S(t), t 0, be a strongly continuous semigroup on a Banach space, with infinitesimal generator A. The main results are as follows: Let either S(t) or S' (t) be uniformly stable as t → + ∞, yet not uniformly exponentially stable as t →+ ∞. Then for any compact operator B on X, the semigroup SB(t) generated by A+B cannot be uniformly exponentially stable as t→ + ∞. This result improves a result in [2] and [3], removing the assumption that S(t) is a contraction and X is a Hilbert space.

关键词：一致指数稳定性紧扰动非压缩半群

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ON THE NECESSARY AND SUFFICI ENT CONDITIONS OF THE CONTINUITY OF M-P INVERSES A_x^+

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Chinese Annals of Mathematics,Series B 1992年第2期13卷 251-256页

作者：马吉涛曹伟平宋国柱 Department of Mathematics Nanjing University Nanjing Jiangau 210008 China

Some necessary and sufficient conditions of the oontinuity of A_x^+ are given in [1] In this paper, some advances on the base and the condition of the oontinuity of A_^+ for Semi-Fredholm operators A_x are presented.

关键词： operators advances implies Heidelberg proof Berlin 二七 holds 二拍土户

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“全面禁燃”下海南退役动力电池回收利用探讨

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电源技术 2024年第4期48卷 584-590页

作者：万术伟郭国柱吴松海南省新能源汽车促进中心海南海口570203 中汽信科(天津)有限公司天津300300

谋划构建动力电池回收利用体系对于坚持生态立省的海南至关重要,同时也将助力海南打造新的低碳循环经济增长极。海南拥有一定量的退役动力电池应用场景,但是汽车产业基础薄弱,回收利用市场仍处于前期培育阶段,宜提前进行回收利用产业布... 详细信息

谋划构建动力电池回收利用体系对于坚持生态立省的海南至关重要,同时也将助力海南打造新的低碳循环经济增长极。海南拥有一定量的退役动力电池应用场景,但是汽车产业基础薄弱,回收利用市场仍处于前期培育阶段,宜提前进行回收利用产业布局,为2030年岛内“全面禁售燃油车”提供支撑。一方面需要尽快建立动力蓄电池回收利用溯源信息管理系统,实现动力电池进出岛“管得住”,另一方面需充分发挥海南自由贸易港区位特点以及在税收、货物贸易便利化等政策赋能方面优势,结合未来海南退役动力电池规模适量布局回收利用项目,并在前期采取政策扶持和加强行政监管力度等举措培育产业发展。

关键词：全面禁燃退役动力电池回收海南自由贸易港

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履带行驶结构的内置式无线应变采集卡设计研究

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工程设计学报 2024年第3期31卷 393-401页

作者：殷国珠张宏宋扬王景宇宋佳琪太原科技大学机械工程学院山西太原030024 中国煤炭科工集团太原研究院有限公司山西太原030006

针对煤矿履带掘进机器人在行驶过程中难以获取履带载荷的问题,基于电阻应变片的应变效应和测量电路,设计了一套适用于采集履带行驶结构动态特性的四通道无线应变采集卡。首先,分析了应变采集卡的电路和工作原理。然后,将2对应变片对称... 详细信息

针对煤矿履带掘进机器人在行驶过程中难以获取履带载荷的问题,基于电阻应变片的应变效应和测量电路,设计了一套适用于采集履带行驶结构动态特性的四通道无线应变采集卡。首先,分析了应变采集卡的电路和工作原理。然后,将2对应变片对称布置在试样板中,以DH5902N坚固型数据采集分析系统所采集的应变数据作为标准,通过仿真与试验相结合的方法对应变采集卡4个通道的灵敏度分别进行了标定。最后,将应变采集卡集成封装后内置于履带行驶结构中,并探讨了应变采集卡在封装环境下连续工作时的温度变化规律。结果表明,所设计的应变采集卡可同时采集4个通道的应变信号,其最高采样频率为1000 Hz,发射功率为4.5 dBm,应变采集误差不超过5×10^(-6)。该应变采集卡在封装环境下连续工作34.7 h后的温度稳定在34.58℃左右,可实现履带行驶结构的多自由度应变信号检测。研究结果为履带行驶结构动态载荷的实时采集以及掘进机器人的可靠性分析和故障预测提供了技术支撑。

关键词：履带行驶结构应变采集卡标定封装

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