Journal of Electron Spectroscopy and Related Phenomena最新文献_第7页

Network formation and differentiation of chitosan–acrylic acid hydrogels using X-ray absorption spectroscopy and multivariate analysis of Fourier transform infrared spectra 壳聚糖-丙烯酸水凝胶的x射线吸收光谱和傅立叶变换红外光谱多元分析

IF 1.9 4区物理与天体物理

Journal of Electron Spectroscopy and Related Phenomena Pub Date : 2023-08-01 DOI: 10.1016/j.elspec.2023.147372

Kathrina Lois M. Taaca , Hideki Nakajima , Kanjana Thumanu , Eloise I. Prieto , Magdaleno R. Vasquez Jr.

{"title":"Network formation and differentiation of chitosan–acrylic acid hydrogels using X-ray absorption spectroscopy and multivariate analysis of Fourier transform infrared spectra","authors":"Kathrina Lois M. Taaca , Hideki Nakajima , Kanjana Thumanu , Eloise I. Prieto , Magdaleno R. Vasquez Jr.","doi":"10.1016/j.elspec.2023.147372","DOIUrl":"10.1016/j.elspec.2023.147372","url":null,"abstract":"<div><p><span>Chitosan–acrylic acid (Cs–AA) hydrogels were prepared by blending different Cs concentrations and AA:Cs ratios. The Cs–AA hydrogel samples were analyzed using synchrotron radiation-induced near edge X-ray absorption fine structure (NEXAFS) and Fourier transform infrared (FTIR) spectroscopies. The characteristics of Cs were observed through the C, O, and N K edges in NEXAFS. Significant shifts in the Cs characteristic features were induced by the addition of AA. The NEXAFS findings confirmed the new covalent and ionic bridges to form the network of the Cs–AA hydrogel. Raw FTIR spectra<span> were used to investigate the different functional groups of each of the macromolecules. The study attempted to discriminate the Cs–AA hydrogels prepared with different Cs wt% concentration and AA:Cs ratio using multivariate approaches. The preprocessed dataset was evaluated using principal component analysis (PCA) and hierarchical cluster analysis (HCA). The PCA and HCA methods showed the possibility of discriminating the Cs–AA hydrogel samples from the control samples and with each other. The approaches further confirmed that the C</span></span><img>O groups found in the range of 1700–1800 cm<sup>−1</sup> can be used as an identifier for Cs–AA hydrogel samples prepared using different solution parameters. The use of FTIR coupled with multivariate approaches provided a simple and reliable way to inspect the possible discrimination of Cs–AA hydrogels.</p></div>","PeriodicalId":15726,"journal":{"name":"Journal of Electron Spectroscopy and Related Phenomena","volume":"267 ","pages":"Article 147372"},"PeriodicalIF":1.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48788357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Scanning transmission X-ray microscopy at the Advanced Light Source 先进光源的扫描透射X射线显微镜

IF 1.9 4区物理与天体物理

Journal of Electron Spectroscopy and Related Phenomena Pub Date : 2023-08-01 DOI: 10.1016/j.elspec.2023.147381

Thomas Feggeler , Abraham Levitan , Matthew A. Marcus , Hendrik Ohldag , David A. Shapiro

{"title":"Scanning transmission X-ray microscopy at the Advanced Light Source","authors":"Thomas Feggeler , Abraham Levitan , Matthew A. Marcus , Hendrik Ohldag , David A. Shapiro","doi":"10.1016/j.elspec.2023.147381","DOIUrl":"10.1016/j.elspec.2023.147381","url":null,"abstract":"<div><p>Over 50 years of development, synchrotron based X-ray microscopy has become a routine and powerful tool for the analysis of nanoscale structure and chemistry in many areas of science. Scanning X-ray microscopy is particularly well suited to the study of chemical and magnetic states of matter and has become available at most synchrotron light sources using a variety of optical schemes, detectors and sample environments. The Advanced Light Source at Lawrence Berkeley National Laboratory has an extensive program of soft X-ray scanning microscopy which supports a broad range of scientific research using a suite of advanced tools for high spatio-temporal resolution and control of active materials. Instruments operating within an energy range between 200–2500 eV with spatial resolution down to 7 nm and sub 20 picosecond time resolution are available. These capabilities can be routinely used in combination with a variety of sample stimuli, including gas or fluid flow, temperature control from 100 to 1200 K, DC bias and pulsed or continuous microwave excitation. We present here a complete survey of our instruments, their most advanced capabilities and a perspective on how they complement each other to solve complex problems in energy, materials and environmental science.</p></div>","PeriodicalId":15726,"journal":{"name":"Journal of Electron Spectroscopy and Related Phenomena","volume":"267 ","pages":"Article 147381"},"PeriodicalIF":1.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43658604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electron scattering at high momentum transfer 高动量传递时的电子散射

IF 1.9 4区物理与天体物理

Journal of Electron Spectroscopy and Related Phenomena Pub Date : 2023-08-01 DOI: 10.1016/j.elspec.2023.147382

Maarten Vos

{"title":"Electron scattering at high momentum transfer","authors":"Maarten Vos","doi":"10.1016/j.elspec.2023.147382","DOIUrl":"10.1016/j.elspec.2023.147382","url":null,"abstract":"<div><p>Energetic (multiple keV) electrons scattering at high momentum transfer (i.e. scatter over a large angle (<span><math><mrow><mo>></mo><mn>20</mn></mrow></math></span>°)) interact with a single particle, either a nucleus or a target electron. Energy transfer is then determined by the incoming energy, scattering angle and the mass and velocity of the scattering particle. When scattering from a target electron a large fraction of the incoming energy is transferred and scattered and ejected electrons can be detected in coincidence. The experiment is then known as electron momentum spectroscopy or (e,2e) spectroscopy and information about the electronic structure is obtained. When scattering from a nucleus the transferred energy is much smaller, and only the scattered electron can be detected. Then the experiment is known as electron Rutherford backscattering and one can measure the sample composition and vibrational properties. In this review we give examples of experimental results for both cases to illustrate the unique information that can be obtained by electron spectroscopy at high-momentum transfer, a less-frequently utilised experimental condition.</p></div>","PeriodicalId":15726,"journal":{"name":"Journal of Electron Spectroscopy and Related Phenomena","volume":"267 ","pages":"Article 147382"},"PeriodicalIF":1.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48011404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Present status and recent progress of research, using photoemission-electron microscopy at SPring-8 利用SPring-8光电子显微镜的研究现状及最新进展

IF 1.9 4区物理与天体物理

Journal of Electron Spectroscopy and Related Phenomena Pub Date : 2023-08-01 DOI: 10.1016/j.elspec.2023.147371

T. Ohkochi , M. Tanaka , T. Ohtsuki , Z. Horita , F. Kitajima , A. Yamaguchi , M. Kotsugi , H. Ogawa , M. Oura

引用次数: 0

Sample structure prediction from measured XPS data using Bayesian estimation and SESSA simulator 利用贝叶斯估计和SESSA模拟器对实测XPS数据进行样本结构预测

IF 1.9 4区物理与天体物理

Journal of Electron Spectroscopy and Related Phenomena Pub Date : 2023-08-01 DOI: 10.1016/j.elspec.2023.147370

Hiroshi Shinotsuka , Kenji Nagata , Malinda Siriwardana , Hideki Yoshikawa , Hayaru Shouno , Masato Okada

引用次数: 0

Development of soft X-ray ptychography and fluorescence microscopy system using total-reflection wolter mirror and application to measurement of drug-treated mammalian cells 全反射镜软X射线ptychography和荧光显微镜系统的开发及其在药物治疗哺乳动物细胞测量中的应用

IF 1.9 4区物理与天体物理

Journal of Electron Spectroscopy and Related Phenomena Pub Date : 2023-08-01 DOI: 10.1016/j.elspec.2023.147380

Yoko Takeo , Kai Sakurai , Noboru Furuya , Kyota Yoshinaga , Takenori Shimamura , Satoru Egawa , Hisao Kiuchi , Hidekazu Mimura , Haruhiko Ohashi , Yoshihisa Harada , Mari Shimura , Takashi Kimura

{"title":"Development of soft X-ray ptychography and fluorescence microscopy system using total-reflection wolter mirror and application to measurement of drug-treated mammalian cells","authors":"Yoko Takeo , Kai Sakurai , Noboru Furuya , Kyota Yoshinaga , Takenori Shimamura , Satoru Egawa , Hisao Kiuchi , Hidekazu Mimura , Haruhiko Ohashi , Yoshihisa Harada , Mari Shimura , Takashi Kimura","doi":"10.1016/j.elspec.2023.147380","DOIUrl":"10.1016/j.elspec.2023.147380","url":null,"abstract":"<div><p>We developed a soft X-ray microscopic imaging system, CARROT, that combines ptychography and fluorescence X-ray microscopy using a total-reflection Wolter mirror illumination system. The system offers advantages such as achromaticity and long working distances, enabling seamless application to a wide wavelength range. We demonstrated high-resolution imaging of cellular structures and sub-micrometer-scale changes induced by drug administration in mammalian cells. We further showcased the capability to seamlessly switch from ptychography measurements to X-ray fluorescence measurements at different wavelengths to map elemental distributions within cells. Our findings suggest that this system can be used for investigating the correlation between intracellular structures and elemental distribution, as well as for multimodal measurements of visible light fluorescence, Raman scattering, and soft X-rays to provide valuable insights into understanding intracellular dynamics.</p></div>","PeriodicalId":15726,"journal":{"name":"Journal of Electron Spectroscopy and Related Phenomena","volume":"267 ","pages":"Article 147380"},"PeriodicalIF":1.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43399011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

magnetoARPES: Angle Resolved Photoemission Spectroscopy with magnetic field control 磁场控制的角度分辨光谱学

IF 1.9 4区物理与天体物理

Journal of Electron Spectroscopy and Related Phenomena Pub Date : 2023-07-01 DOI: 10.1016/j.elspec.2023.147357

Sae Hee Ryu , Garett Reichenbach , Chris M. Jozwiak , Aaron Bostwick , Peter Richter , Thomas Seyller , Eli Rotenberg

{"title":"magnetoARPES: Angle Resolved Photoemission Spectroscopy with magnetic field control","authors":"Sae Hee Ryu , Garett Reichenbach , Chris M. Jozwiak , Aaron Bostwick , Peter Richter , Thomas Seyller , Eli Rotenberg","doi":"10.1016/j.elspec.2023.147357","DOIUrl":"10.1016/j.elspec.2023.147357","url":null,"abstract":"<div><p><span>Angle-Resolved Photoemission<span> Spectroscopy (ARPES) is a premier technique for understanding the electronic excitations in conductive, crystalline matter, in which the induced photocurrent is collected and dispersed in energy and angle of emission to reveal the energy- and momentum-dependent single particle spectral function </span></span><span><math><mrow><mi>A</mi><mrow><mo>(</mo><mi>k</mi><mo>,</mo><mi>ω</mi><mo>)</mo></mrow></mrow></math></span><span>. So far, ARPES in a magnetic field has been precluded due to the need to preserve the electron paths between the sample and detector. In this paper we report progress towards “magnetoARPES”, a variant of ARPES that can be conducted in a magnetic field. It is achieved by applying a microscopic probe beam (</span><span><math><mo>≲</mo></math></span>10 <span><math><mrow><mi>μ</mi><mi>m</mi></mrow></math></span><span>) to a thinned sample mounted upon a special sample holder that generates magnetic field confined to a thin layer near the sample surface. In this geometry we could produce ARPES in magnetic fields up to around ±100 mT. The magnetic fields can be varied from purely in-plane to nearly purely out-of-plane, by scanning the probe beam across different parts of the device. We present experimental and simulated data for graphene to explore the aberrations induced by the magnetic field. These results demonstrate the viability of the magnetoARPES technique for exploring symmetry breaking effects in weak magnetic fields.</span></p></div>","PeriodicalId":15726,"journal":{"name":"Journal of Electron Spectroscopy and Related Phenomena","volume":"266 ","pages":"Article 147357"},"PeriodicalIF":1.9,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47542817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Theoretical spectral function of CH3NH3PbI3 hybrid perovskite around the Fermi level 费米能级附近CH3NH3PbI3杂化钙钛矿的理论光谱函数

IF 1.9 4区物理与天体物理

Journal of Electron Spectroscopy and Related Phenomena Pub Date : 2023-07-01 DOI: 10.1016/j.elspec.2023.147345

Min-I Lee , S. Ayaz Khan , J. Minar , A. Tejeda

引用次数: 0

Scanning transmission soft X-ray spectromicroscopy of mouse kidney and liver 小鼠肾脏和肝脏的扫描透射软x射线光谱显微镜

IF 1.9 4区物理与天体物理

Journal of Electron Spectroscopy and Related Phenomena Pub Date : 2023-07-01 DOI: 10.1016/j.elspec.2023.147368

Tuomas Mansikkala , Takuji Ohigashi , Miia H. Salo , Anniina E. Hiltunen , Reetta Vuolteenaho , Petra Sipilä , Satu Kuure , Marko Huttula , Johanna Uusimaa , Reetta Hinttala , Ilkka Miinalainen , Salla Kangas , Minna Patanen

引用次数: 0

Analysis of surface properties of Mg doped ZnS and ZnSe thin films through x-ray photoelectron spectroscopy Mg掺杂ZnS和ZnSe薄膜表面性质的x射线光电子能谱分析

IF 1.9 4区物理与天体物理

Journal of Electron Spectroscopy and Related Phenomena Pub Date : 2023-07-01 DOI: 10.1016/j.elspec.2023.147341

V.S. Ganesha Krishna, M.G. Mahesha

引用次数: 1