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自旋轨道耦合和自旋流的研究若干进展

物理 2008年第8期37卷 594-599页

作者：孙庆丰中国科学院物理研究所北京凝聚态物理国家实验室北京100190

近十年来,国内外科学工作者对自旋轨道耦合和自旋流作了很多深入的研究.文章介绍该领域的一些重要进展以及它的发展情况,包括介绍由自旋轨道耦合所引起的内在自旋霍尔效应和持续自旋流、自旋流的产生、自旋流的定义以及自旋流产生电场等... 详细信息

近十年来,国内外科学工作者对自旋轨道耦合和自旋流作了很多深入的研究.文章介绍该领域的一些重要进展以及它的发展情况,包括介绍由自旋轨道耦合所引起的内在自旋霍尔效应和持续自旋流、自旋流的产生、自旋流的定义以及自旋流产生电场等.最后也讨论一些有待于解决的课题,以及对该领域的展望.

关键词：自旋轨道耦合自旋流科学工作者自旋霍尔效应

CeO_2 thin films grown on biaxially textured nickel(001)

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Chinese Science Bulletin 1998年第20期43卷 1718-1722页

作者： WANG Rongping, XIONG Xuming, Guo Xiangxin, ZHOU Yueliang, L Huibin, PAN Shaohua, CHEN Zhenghao and YANG Guozhen laboratory of Optical physics, Institute of physics and Center for{3. matter physics, Chinese Academy of Sciences, beijing 100080, Ch laboratory of Optical physics Institute of Physics and Center for Condensed Matter Physics Chinese Academy of Sciences Beijing China

CeO\-2 films have been grown on biaxially textured Ni substrates at various temperatures. The results show that CeO\-2 films without IBAD are dominated by (111) orientation from room temperature to 800℃ while the preferential orientation of CeO\-2 films with IBAD is (001) at lower deposition temperature and (111) at deposition temperature higher than 450℃. CeO\-2 films with better in_plane texture and out_of_plane orientation can be grown at 3.0℃ with 240 eV ion energy and 200 μA/cm\+2 ion current density.

关键词： CeO\-2 films biaxial nickel.

Studies on the condensed Structure of Vacuum Cast Atactic Polystyrene Films

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Chemical Research in Chinese Universities 2000年第4期16卷 363-368页

作者： WANG You, HE Chu-ning and SHEN Jing-shu (Polymer physics laboratory, Institute of Chemistry, Chinese Academy of Sciences, beijing 100080,{3.) WU Li-heng and SONG Qing (china Textile Academy, beijing 100025,{3.) 中科院化学所高分子物理及化学国家重点实验室北京 100080 中国纺织科学院北京 100025

The condensed structure of atactic-polystyrene (a - PS ) films cast from the solutions of differ- ent concentrations in dichloromethane under vacuum and atmospheric conditions was studied by differential scanning calorimetry(DSC). It was found that only under vacuum evaporating conditions did the endothermic peak in the DSC curves of a-PS films depend on the concentration of the a-PS solution. For the samples cast from the solution of concentration below 0. 010 g/mL, no endothermal peak was observed, but for those cast from the solution of concentration above 0. 020 g/mL, obvious endothermal peaks appeared. The onset of the endothermal peak is correlated with the critical overlapping concentration c' (0. 010-0. 020 g/mL), which is in agreement with the theoretically calculated one (Ccal=0.014 g/mL).

关键词： Differential scanning calorimeter(DSC) Critical overlapping concentration Atactic polystyrene film

THE LIGHT INDUCED CHANGE IN TRANSIENT PHOTOCONDUC-TIVITY OF POLYMORPHOUS SILICON FILMS

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Acta Metallurgica Sinica(English Letters) 2001年第6期14卷 453-456页

作者： S.B. Zhang, G.L. Kong, Y. Y. Xu, Y.Q. Wang, H.W. Diao and X.B. Liao (State laboratory for Surface physics, Institute of Semiconductors & Center for condensed{3. physics, Chinese Academy of Sciences, beijing 100083. china) Inst. of Semiconduct. Chinese Acad. of Sci. Beijing 100083 China

The decays of transient photoconductivity and their light-induced changes of polymorphous silicon (pm-Si:H) films were investigated. The decays can be fit fairly well by a sum of two exponential decay functions, which indicates that there are two kinds of traps contributing to the process. The light-induced changes of the concentration and energy level of the traps were estimated. The results show that the light-induced changes in trap energy position Et, trap concentration Nt as well as photoconductivity are markedly less for pm-Si:H than that for a-Si:H.

关键词： light-induced change transient film

The preparation and unique properties of diamond nanocone arrays

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The preparation and unique properties of diamond nanocone ar...

Detection of protein microarrays by oblique-incidence reflectivity difference technique

中国真空学会2012学术年会

作者： C.Z.Gu beijing national laboratory of{3. matter,Institute of physics,Chinese Academy of Sciences,beijing 100080,china

Due to the high aspect ratio and stable mechanical properties,the conical surface nanostructures show wide potentials in many application fields such as optics,electronics,thermology and ***,the complicate fabrication...

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Science china(physics,Mechanics & Astronomy) 2010年第2期53卷 306-309页

作者： WEN Juan1,LU Heng1,WANG Xu1,YUAN Kun1,L HuiBin1,ZHOU YueLiang1,JIN KuiJuan1,YANG GuoZhen1,LI Wei2 & RUAN KangCheng2 1 beijing national laboratory for condensed matter physics,Institute of physics,Chinese Academy of Sciences,beijing{3.,china 2 Key laboratory of Proteomics,Institute of Biochemistry and Cell Biology,Shanghai Institute for Biological Sciences,Chinese Academy of Sciences,Shanghai 20003.,china beijing national laboratory for condensed matter physics Institute of Physics Chinese Academy of Sciences Beijing China Key laboratory of Proteomics Institute of Biochemistry and Cell Biology Shanghai Institute for Biological Sciences Chinese Academy of Sciences Shanghai China

Biological microarrays with different proteins and different protein concentrations are detected without external labeling by an oblique-incidence reflectivity difference (OIRD) technique. The initial experiment results reveal that the intensities of OIRD signals can distinguish the different proteins and concentrations of protein. The OIRD technique promises feasible applications to life sciences for label-free and high-throughput detection.

关键词： oblique-incidence reflectivity difference protein microarray label-free detection

CVD Synthesis of Single-Walled Boron Nitride Nanotubes

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CVD Synthesis of Single-Walled Boron Nitride Nanotubes

Effects of gravity on the microstructure of Zr_(41)Ti_(14)-Cu_(12.5)Ni_(10)Be_(22.5) bulk glass forming alloy

2011中国材料研讨会

作者： Muhong Wu 1,3.Wenlong Wang,1,Xuedong Bai,1,Yu Sui 3.and Enge Wang,1,2 1 beijing national laboratory for condensed matter physics,Institute of physics,Chinese Academy of Sciences,beijing{3.,china 2 International Center for Quantum Materials,School of physics,Peking University,beijing 100871,china 3.Center for condensed matter Science and Technology (CCMSIT),Department of physics,Harbin Institute of Technology,Harbin 150001,china

＜正＞As the binary III-VI homolog of carbon nanotubes（CNTs）,the boron nitride nanotubes（BNNTs）share the most structural similarity with CNTs and can be regarded as an important

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Chinese Science Bulletin 2001年第11期46卷 961-963页

作者： LI Gong, ZHAN Zaiji, WANG Limin, CAO Limin, SUN Liling, DAI Daoyang, ZHANG Jun & WANG WenkuiInstitute of physics, Center for condensed matter physics, Chinese Academy of Sciences, beijing 100080, china Department of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, china Institute of physics Center for Condensed Matter Physics Chinese Academy of Sciences Beijing China Department of Materials Science and Engineering Yanshan University Qinhuangdao China

The ZrTiCuNiBe alloy is melt and solidified by Bridgman unidirectional solidification on two gravity field orientations (the gravity field orientation is parallel and opposite to solidification direction). Effects of gravity on morphology and microstructure are investigated by scanning electron microscope (SEM) and X-ray diffraction (XRD). When gravity field orientation is parallel to solidificationdirection, less needle-like primary phase is embedded in a matrix eutectic; when gravity field orientation is opposite to solidification direction, a large amount of coarser needle-like primary phases were observed.

关键词： gravity field unidirectional solidification bulk amor- phous alloy.

The guanidine hydrochloride-induced denaturation of CP43.and CP47 studied by terahertz time-domain spectroscopy

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Science china(Life Sciences) 2007年第3期50卷 350-355页

作者： QU YuanGang1,3. CHEN Hua2, QIN XiaoChun1, WANG Li2, LI LiangBi1 & KUANG TingYun1 1 Key laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, beijing 100093. china 2 laboratory of Optical physics, Institute of physics and Center for condensed matter physics, Chinese Academy of Sciences, beijing 100080, china 3.Graduate University of Chinese Academy of Sciences, beijing 100049, china Key laboratory of Photosynthesis and Environmental Molecular Physiology Institute of Botany Chinese Academy of SciencesBeijing 100093 China Graduate University of Chinese Academy of Sciences Beijing 100049 China laboratory of Optical physics Institute of Physics and Center for Condensed Matter Physics Chinese Academy of SciencesBeijing 100080 China Key laboratory of Photosynthesis and Environmental Molecular Physiology Institute of Botany Chinese Academy of SciencesBeijing 100093 China

Terahertz time-domain spectroscopy (THz-TDS) is a new technique in studying the conformational state of a molecule in recent years. In this work, we reported the first use of THz-TDS to examine the dena- turation of two photosynthesis membrane proteins: CP43.and CP47. THz-TDS was proven to be useful in discriminating the different conformational states of given proteins with similar structure and in monitoring the denaturation process of proteins. Upon treatment with guanidine hydrochloride (GuHCl), a 1.8 THz peak appeared for CP47 and free chlorophyll a (Chl a). This peak was deemed to originate from the interaction between Chl a and GuHCl molecules. The Chl a molecules in CP47 interacted with GuHCl more easily than those in CP43.

关键词： CP The guanidine hydrochloride-induced denaturation of CP43.and CP47 studied by terahertz time-domain spectroscopy THz time