Progress in Surface Science最新文献

{"title":"Surface chemistry and microscopy of food powders","authors":"Jennifer Burgain ,&nbsp;Jeremy Petit ,&nbsp;Joël Scher ,&nbsp;Ron Rasch ,&nbsp;Bhesh Bhandari ,&nbsp;Claire Gaiani","doi":"10.1016/j.progsurf.2017.07.002","DOIUrl":"https://doi.org/10.1016/j.progsurf.2017.07.002","url":null,"abstract":"<div><p>Despite high industrial and scientific interest, a comprehensive review of the surface science of food powders is still lacking. There is a real gap between scientific concerns of the field and accessible reviews on the subject. The global description of the surface of food powders by multi-scale microscopy approaches seems to be essential in order to investigate their complexity and take advantage of their high innovation potential.</p><p>Links between these techniques and the interest to develop a multi-analytical approach to investigate scientific questions dealing with powder functionality are discussed in the second part of the review. Finally, some techniques used in others fields and showing promising possibilities in the food powder domain will be highlighted.<span><figure><span><img><ol><li><span>Download : <span>Download high-res image (202KB)</span></span></li><li><span>Download : <span>Download full-size image</span></span></li></ol></span></figure></span></p></div>","PeriodicalId":416,"journal":{"name":"Progress in Surface Science","volume":"92 4","pages":"Pages 409-429"},"PeriodicalIF":6.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.progsurf.2017.07.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2621772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atomic-scale investigation of nuclear quantum effects of surface water: Experiments and theory","authors":"Jing Guo ,&nbsp;Xin-Zheng Li ,&nbsp;Jinbo Peng ,&nbsp;En-Ge Wang ,&nbsp;Ying Jiang","doi":"10.1016/j.progsurf.2017.11.001","DOIUrl":"https://doi.org/10.1016/j.progsurf.2017.11.001","url":null,"abstract":"<div><p><span>Quantum behaviors of protons in terms of tunneling and zero-point motion have significant effects on the macroscopic properties<span>, structure, and dynamics of water even at room temperature<span> or higher. In spite of tremendous theoretical and experimental efforts, accurate and quantitative description of the nuclear quantum effects (NQEs) is still challenging. The main difficulty lies in that the NQEs are extremely susceptible to the structural inhomogeneity and local environments, especially when interfacial systems are concerned. In this review article, we will highlight the recent advances of scanning tunneling microscopy and spectroscopy (STM/S), which allows the access to the quantum degree of freedom of protons both in real and energy space. In addition, we will also introduce recent development of </span></span></span><em>ab initio</em> path-integral molecular dynamics (PIMD) simulations at surfaces/interfaces, in which both the electrons and nuclei are treated as quantum particles in contrast to traditional <em>ab initio</em><span> molecular dynamics (MD). Then we will discuss how the combination of STM/S and PIMD are used to directly visualize the concerted quantum tunneling of protons within the water clusters and quantify the impact of zero-point motion on the strength of a single hydrogen bond (H bond) at a water/solid interface. Those results may open up the new possibility of exploring the exotic quantum states of light nuclei at surfaces, as well as the quantum coupling between the electrons and nuclei.</span></p></div>","PeriodicalId":416,"journal":{"name":"Progress in Surface Science","volume":"92 4","pages":"Pages 203-239"},"PeriodicalIF":6.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.progsurf.2017.11.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2621769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-adiabatic effects in elementary reaction processes at metal surfaces","authors":"M. Alducin ,&nbsp;R. Díez Muiño ,&nbsp;J.I. Juaristi","doi":"10.1016/j.progsurf.2017.09.002","DOIUrl":"https://doi.org/10.1016/j.progsurf.2017.09.002","url":null,"abstract":"<div><p>Great success has been achieved in the modeling of gas-surface elementary processes by the use of the Born-Oppenheimer approximation. However, in metal surfaces low energy electronic excitations are generated even by thermal and hyperthermal molecules due to the absence of band gaps in the electronic structure. This shows the importance of performing dynamical simulations that incorporate non-adiabatic effects to analyze in which way they affect most common gas-surface reactions. Here we review recent theoretical developments in this problem and their application to the study of the effect of electronic excitations in the adsorption and relaxation of atoms and molecules in metal surfaces, in scattering processes, and also in recombinative processes between impinging atoms and adsorbates at the surface. All these studies serve us to establish what properties of the gas-surface interaction favor the excitation of low-energy electron-hole pairs. A general observation is that the nature of these excitations usually requires long lasting interactions at the surface in order to observe deviations from the adiabatic behaviour. We also provide the basis of the local density friction approximation (LDFA) that have been used in all these studies, and show how it has been employed to perform ab initio molecular dynamics with electronic friction (AIMDEF). As a final remark, we will shortly review on recent applications of the LDFA to successfully simulate desorption processes induced by intense femtosecond laser pulses.</p></div>","PeriodicalId":416,"journal":{"name":"Progress in Surface Science","volume":"92 4","pages":"Pages 317-340"},"PeriodicalIF":6.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.progsurf.2017.09.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2621770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatially-resolved studies on the role of defects and boundaries in electronic behavior of 2D materials","authors":"Saban M. Hus,&nbsp;An-Ping Li","doi":"10.1016/j.progsurf.2017.07.001","DOIUrl":"https://doi.org/10.1016/j.progsurf.2017.07.001","url":null,"abstract":"<div><p><span>Two-dimensional (2D) materials are intrinsically heterogeneous. Both localized defects, such as vacancies and dopants, and mesoscopic boundaries, such as surfaces and interfaces, give rise to compositional or structural heterogeneities. The presence of defects and boundaries can break lattice symmetry, modify the energy landscape, and create quantum confinement, leading to fascinating electronic properties different from the “ideal” 2D sheets. This review summarizes recent progress in understanding the roles of defects and boundaries in electronic, magnetic, thermoelectric, and transport properties of 2D layered materials. The focus is on the understanding of correlation of atomic-scale structural information with electronic functions by interrogating heterogeneities individually. The materials concerned are graphene, transition metal dichalcogenides<span><span> (TMDs), hexagonal boron nitride (hBN), and </span>topological insulators (TIs). The experimental investigations benefit from new methodologies and techniques in scanning tunneling </span></span>microscopy<span> (STM), including spin-polarized STM, scanning tunneling potentiometry (STP), scanning tunneling thermopower microscopy, and multi-probe STM. The experimental effort is complemented by the computational and theoretical approaches, capable of discriminating between closely competing states and achieving the length scales necessary to bridge across features such as local defects and complex heterostructures. The goal is to provide a general view of current understanding and challenges in studying the heterogeneities in 2D materials and to evaluate the potential of controlling and exploiting these heterogeneities for novel functionalities and electron devices.</span></p></div>","PeriodicalId":416,"journal":{"name":"Progress in Surface Science","volume":"92 3","pages":"Pages 176-201"},"PeriodicalIF":6.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.progsurf.2017.07.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2401961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of contact resistance in graphene field-effect devices","authors":"Filippo Giubileo ,&nbsp;Antonio Di Bartolomeo","doi":"10.1016/j.progsurf.2017.05.002","DOIUrl":"https://doi.org/10.1016/j.progsurf.2017.05.002","url":null,"abstract":"<div><p>The extremely high carrier mobility<span><span> and the unique band structure, make graphene very useful for field-effect transistor applications. According to several works, the primary limitation to graphene based transistor performance is not related to the material quality, but to extrinsic factors that affect the electronic transport properties. One of the most important parasitic element is the contact resistance appearing between graphene and the metal electrodes functioning as the source and the drain. Ohmic contacts to graphene, with low contact resistances, are necessary for injection and extraction of majority charge carriers to prevent transistor parameter fluctuations caused by variations of the contact resistance. The International Technology Roadmap for Semiconductors, toward integration and down-scaling of graphene electronic devices, identifies as a challenge the development of a CMOS compatible process that enables reproducible formation of low contact resistance. However, the contact resistance is still not well understood despite it is a crucial barrier towards further improvements. In this paper, we review the experimental and theoretical activity that in the last decade has been focusing on the reduction of the contact resistance in graphene transistors. We will summarize the specific properties of graphene-metal contacts with particular attention to the nature of metals, impact of fabrication process, </span>Fermi level pinning, interface modifications induced through surface processes, charge transport mechanism, and edge contact formation.</span></p></div>","PeriodicalId":416,"journal":{"name":"Progress in Surface Science","volume":"92 3","pages":"Pages 143-175"},"PeriodicalIF":6.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.progsurf.2017.05.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2621773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atomically flat single terminated oxide substrate surfaces","authors":"Abhijit Biswas ,&nbsp;Chan-Ho Yang ,&nbsp;Ramamoorthy Ramesh ,&nbsp;Yoon H. Jeong","doi":"10.1016/j.progsurf.2017.05.001","DOIUrl":"https://doi.org/10.1016/j.progsurf.2017.05.001","url":null,"abstract":"<div><p><span><span><span>Scientific interest in atomically controlled layer-by-layer fabrication of transition metal oxide<span> thin films and heterostructures has increased intensely in recent decades for basic physics reasons as well as for technological applications. This trend has to do, in part, with the coming post-Moore era, and functional oxide electronics could be regarded as a viable alternative for the current semiconductor electronics. Furthermore, the interface of transition metal oxides is exposing many new emergent phenomena and is increasingly becoming a playground for testing new ideas in </span></span>condensed matter physics. To achieve high quality epitaxial thin films and heterostructures of transition metal oxides with atomically controlled interfaces, one critical requirement is the use of atomically flat single terminated oxide substrates since the atomic arrangements and the reaction </span>chemistry<span> of the topmost surface layer of substrates determine the growth and consequent properties of the overlying films. Achieving the atomically flat and chemically single terminated surface state of commercially available substrates, however, requires judicious efforts because the surface of as-received substrates is of chemically mixed nature and also often polar. In this review, we summarize the surface treatment procedures to accomplish atomically flat surfaces with single terminating layer for various metal oxide substrates. We particularly focus on the substrates with lattice constant ranging from 4.00</span></span> <!-->Å to 3.70<!--> <span>Å, as the lattice constant of most perovskite materials falls into this range. For materials outside the range, one can utilize the substrates to induce compressive or tensile strain on the films and explore new states not available in bulk. The substrates covered in this review, which have been chosen with commercial availability and, most importantly, experimental practicality as a criterion, are KTaO</span>₃, <span><em>RE</em></span>ScO₃ (<em>RE</em> <!-->=<!--> <!-->Rare-earth elements), SrTiO₃, La_0.18Sr_0.82Al_0.59Ta_0.41O₃ (LSAT), NdGaO₃, LaAlO₃, SrLaAlO₄, and YAlO₃<span>. Analyzing all the established procedures, we conclude that atomically flat surfaces with selective A- or B-site single termination would be obtained for most commercially available oxide substrates. We further note that this topmost surface layer selectivity would provide an additional degree of freedom in searching for unforeseen emergent phenomena and functional applications in epitaxial oxide thin films and heterostructures with atomically controlled interfaces.</span></p></div>","PeriodicalId":416,"journal":{"name":"Progress in Surface Science","volume":"92 2","pages":"Pages 117-141"},"PeriodicalIF":6.4,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.progsurf.2017.05.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2067676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Probing magnetic excitations and correlations in single and coupled spin systems with scanning tunneling spectroscopy","authors":"Markus Ternes","doi":"10.1016/j.progsurf.2017.01.001","DOIUrl":"https://doi.org/10.1016/j.progsurf.2017.01.001","url":null,"abstract":"<div><p><span>Spectroscopic measurements with low-temperature scanning tunneling microscopes have been used very successfully for studying not only individual atomic or molecular spins on surfaces but also complexly designed coupled systems. The symmetry breaking of the supporting surface induces </span>magnetic anisotropy which lead to characteristic fingerprints in the spectrum of the differential conductance and can be well understood with simple model Hamiltonians. Furthermore, correlated many-particle states can emerge due to the interaction with itinerant electrons of the electrodes, making these systems ideal prototypical quantum systems. In this manuscript more complex bipartite and spin-chains will be discussed additionally. Their spectra enable to determine precisely the nature of the interactions between the spins which can lead to the formation of new quantum states which emerge by interatomic entanglement.</p></div>","PeriodicalId":416,"journal":{"name":"Progress in Surface Science","volume":"92 1","pages":"Pages 83-115"},"PeriodicalIF":6.4,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.progsurf.2017.01.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3390902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spin decoherence of magnetic atoms on surfaces","authors":"F. Delgado ,&nbsp;J. Fernández-Rossier","doi":"10.1016/j.progsurf.2016.12.001","DOIUrl":"https://doi.org/10.1016/j.progsurf.2016.12.001","url":null,"abstract":"<div><p><span>We review the problem of spin decoherence of magnetic atoms deposited on a surface. Recent breakthroughs in scanning tunnelling microscopy (STM) make it possible to probe the spin dynamics of individual atoms, either isolated or integrated in nanoengineered spin structures. Transport pump and probe techniques with spin polarized tips permit measuring the spin relaxation time </span><span><math><mrow><msub><mrow><mi>T</mi></mrow><mrow><mn>1</mn></mrow></msub></mrow></math></span><span>, while novel demonstration of electrically driven STM single spin resonance has provided a direct measurement of the spin coherence time </span><span><math><mrow><msub><mrow><mi>T</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span><span> of an individual magnetic adatom<span>. Here we address the problem of spin decoherence from the theoretical point of view. First we provide a short general overview of decoherence in open quantum systems and we discuss with some detail ambiguities that arise in the case of degenerate spectra, relevant for magnetic atoms. Second, we address the physical mechanisms that allows probing the spin coherence of magnetic atoms on surfaces. Third, we discuss the main spin decoherence mechanisms at work on a surface, most notably, Kondo interaction, but also spin–phonon coupling and dephasing by Johnson noise. Finally, we briefly discuss the implications in the broader context of quantum technologies.</span></span></p></div>","PeriodicalId":416,"journal":{"name":"Progress in Surface Science","volume":"92 1","pages":"Pages 40-82"},"PeriodicalIF":6.4,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.progsurf.2016.12.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2415680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Line tension and its influence on droplets and particles at surfaces","authors":"Bruce M. Law ,&nbsp;Sean P. McBride ,&nbsp;Jiang Yong Wang ,&nbsp;Haeng Sub Wi ,&nbsp;Govind Paneru ,&nbsp;Santigo Betelu ,&nbsp;Baku Ushijima ,&nbsp;Youichi Takata ,&nbsp;Bret Flanders ,&nbsp;Fernando Bresme ,&nbsp;Hiroki Matsubara ,&nbsp;Takanori Takiue ,&nbsp;Makoto Aratono","doi":"10.1016/j.progsurf.2016.12.002","DOIUrl":"https://doi.org/10.1016/j.progsurf.2016.12.002","url":null,"abstract":"<div><p>In this review we examine the influence of the line tension <em>τ</em><span> on droplets and particles at surfaces. The line tension influences the nucleation behavior and contact angle of liquid droplets at both liquid and solid surfaces and alters the attachment energetics<span> of solid particles to liquid surfaces. Many factors, occurring over a wide range of length scales, contribute to the line tension. On atomic scales, atomic rearrangements and reorientations of submolecular components give rise to an atomic line tension contribution </span></span><em>τ_atom</em> (∼1<!--> <!-->nN), which depends on the similarity/dissimilarity of the droplet/particle surface composition compared with the surface upon which it resides. At nanometer length scales, an integration over the van der Waals interfacial potential gives rise to a mesoscale contribution |<em>τ_vdW</em>|<!--> <!-->∼<!--> <!-->1–100<!--> <span>pN while, at millimeter length scales, the gravitational potential provides a gravitational contribution </span><em>τ_grav</em> <!-->∼<!--> <!-->+1–10<!--> <!-->μN. <em>τ_grav</em> is always positive, whereas, <em>τ_vdW</em> can have either sign. Near wetting, for very small contact angle droplets, a negative line tension may give rise to a contact line instability. We examine these and other issues in this review.</p></div>","PeriodicalId":416,"journal":{"name":"Progress in Surface Science","volume":"92 1","pages":"Pages 1-39"},"PeriodicalIF":6.4,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.progsurf.2016.12.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3390901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review on charge transfer and chemical activity of TiO2: Mechanism and applications","authors":"Yongqing Cai ,&nbsp;Yuan Ping Feng","doi":"10.1016/j.progsurf.2016.11.001","DOIUrl":"https://doi.org/10.1016/j.progsurf.2016.11.001","url":null,"abstract":"<div><p>Charge separation and transfer at the interface between two materials play a significant role in various atomic-scale processes and energy conversion systems. In this review, we present the mechanism and outcome of charge transfer in TiO₂, which is extensively explored for photocatalytic applications in the field of environmental science. We list several experimental and computational methods to estimate the amount of charge transfer. The effects of the work function, defects and doping, and employment of external electric field on modulating the charge transfer are presented. The interplay between the band bending and carrier transport across the surface and interface consisting of TiO₂<span> is discussed. We show that the charge transfer can also strongly affect the behavior of deposited nanoparticles on TiO</span>₂ through built-in electric field that it creates. This review encompasses several advances of composite materials where TiO₂ is combined with two-dimensional materials like graphene, MoS₂, phosphorene, etc. The charge transport in the TiO₂<span>-organohalide perovskite with respect to the electron-hole separation at the interface is also discussed.</span></p></div>","PeriodicalId":416,"journal":{"name":"Progress in Surface Science","volume":"91 4","pages":"Pages 183-202"},"PeriodicalIF":6.4,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.progsurf.2016.11.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2067677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}