Atomically Controlled Surfaces, Interfaces and Nanostructures
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Photofinishing Prices 08-01-19 X CUSTOMER 08-03-19.Pub
Miscellaneous Film Processing Services (Page 1 of 2) August 1, 2019 110 & 126 Develop, Scan & Print (C-41) Seattle Filmworks 35mm Processing Service Time: 10 Lab Days Matte or Glossy finish prints. Process: ECN-II or SFW-XL. Service Time: up to 2 weeks. C-41 process. Prints, if requested, on Kodak Royal paper. Applicable Films: Seattle Filmworks; Signature Color; Scanning the negatives is required prior to making prints. Eastman 5247 or 5294; Kodak Vision 2 or Vision 3 500T / We develop your cartridge of negatives ($4.90), scan the 5218 or 7218. visible images ($1.58 per negative), and, if requested, make prints ($0.20 per print). Scans are written to CD (no charge). Choose Matte or Glossy, 4x6 or 3½x5. Kodak Royal Paper. 110 film makes 4x5" prints. 126 film makes 4x4" prints. Default service is 4x6 Matte prints (if you don’t specify). Minimum charge : $12.00 Develop Only service Minimum Charge : $4.90 Develop Only service (blank film) ECN-II Develop & Print 4x6 or 3½x5 Identical 110 & 126 C-41 Develop Negatives & Scan to CD First Set 2nd Set Develop Develop & 20 or 24 Exposure ....................... 22.95 .................... 6.00 & Scan Scan & Print 36 Exposure ................................ 26.95 .................... 9.00 12 Exposure ................................ 23.86 .................. 26.26 Scan ECN-II process film to CD: 24 Exposure ................................ 42.82 .................. 47.62 Discount for unscannable negs ….1.58 each 1Reprint 2Enlargement Discount for prints not made from blank images ..........20 each Quality Quality Scanning Price per Roll CD CD Scans & Prints from Old 110 & 126 Negs with Develop & Print .......... -
SENATE April 30, 2013, 2:30 Pm 202 Robert Sutherland Hall
Agenda MEETING OF THE SENATE April 30, 2013, 2:30 pm 202 Robert Sutherland Hall Page I Opening Session . 1. Adoption of Agenda . That Senate suspend rule 7 of the Rules of Procedure for the Senate to provide for a presentation and consultation on the Campus Master Plan and the Library and Archives Master Plan to immediately precede Motions (other than from Committees); That Senate extend the maximum duration for the meeting to three hours (5:30 pm); and That Senate adopt the agenda as circulated. 2. Adoption of the minutes of the previous meeting . 13 - 25 a. Minutes of March 19, 2013 That Senate adopt the minutes of March 19, 2013 as circulated. 3. Principal's Report . 26 - 28 a. Principal's Written Report to Senate [Information] [5 min] . 4. Provost's Report . 29 - 30 a. Provost's Written Report to Senate [Information] [5 min] . II Committee Motions and Reports . 31 - 37 1. Five-year Renewal: SNOLAB (SARC) [Action] [3 min] That Senate approve the renewal of the SNOLAB Institute for an additional period of five years, effective April 2, Queen's University at Kingston Agenda 2013, subject to ratification by the Board of Trustees. 38 - 47 2. Committee Restructuring (SORC) (for discussion) [Notice of Motion] [10 min] Motion 1: That Senate establish the Senate Governance and Nominating Committee effective September 1, 2013 and that the Senate Operations Review Committee and the Senate Nominating Committee be dissolved effective August 31, 2013. Motion 2: That the Senate Agenda Committee be retitled the Senate Agenda and Summer Advisory Committee and that the committee mandate be revised as recommended effective September 1, 2013. -
The GW Plus Cumulant Method and Plasmonic Polarons: Application To
The GW plus cumulant method and plasmonic polarons: application to the homogeneous electron gas Fabio Caruso and Feliciano Giustino Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom (Dated: August 28, 2018) We study the spectral function of the homogeneous electron gas using many-body perturbation theory and the cumulant expansion. We compute the angle-resolved spectral function based on the GW approximation and the ‘GW plus cumulant’ approach. In agreement with previous studies, the GW spectral function exhibits a spurious plasmaron peak at energies 1.5ωpl below the quasiparticle peak, ωpl being the plasma energy. The GW plus cumulant approach, on the other hand, reduces significantly the intensity of the plasmon-induced spectral features and renormalizes their energy relative to the quasiparticle energy to ωpl. Consistently with previous work on semiconductors, our results show that the HEG is characterized by the emergence of plasmonic polaron bands, that is, broadened replica of the quasiparticle bands, red-shifted by the plasmon energy. I. INTRODUCTION disappears when a higher level of theory is employed, such as the cumulant expansion.8 The cumulant expan- sion approach is the state-of-the-art technique for the The homogeneous electron gas (HEG) denotes a model description of satellites in photoemission and it accounts system of electrons interacting with a compensating ho- 1 for the interaction between electrons and plasmons em- mogeneous positively-charged background. The model, ploying an independent boson model.15 This model is ex- because of its simplicity, lends itself to analytical treat- actly solvable for a single core electron interacting with ment and has therefore provided the ideal test-case a plasmon bath, and it provides an explicit expression for the early development of many-body perturbation 8,16 2 for the spectral function. -
Quasiparticle Scattering, Lifetimes, and Spectra Using the GW Approximation
Quasiparticle scattering, lifetimes, and spectra using the GW approximation by Derek Wayne Vigil-Fowler A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Physics in the Graduate Division of the University of California, Berkeley Committee in charge: Professor Steven G. Louie, Chair Professor Feng Wang Professor Mark D. Asta Summer 2015 Quasiparticle scattering, lifetimes, and spectra using the GW approximation c 2015 by Derek Wayne Vigil-Fowler 1 Abstract Quasiparticle scattering, lifetimes, and spectra using the GW approximation by Derek Wayne Vigil-Fowler Doctor of Philosophy in Physics University of California, Berkeley Professor Steven G. Louie, Chair Computer simulations are an increasingly important pillar of science, along with exper- iment and traditional pencil and paper theoretical work. Indeed, the development of the needed approximations and methods needed to accurately calculate the properties of the range of materials from molecules to nanostructures to bulk materials has been a great tri- umph of the last 50 years and has led to an increased role for computation in science. The need for quantitatively accurate predictions of material properties has never been greater, as technology such as computer chips and photovoltaics require rapid advancement in the control and understanding of the materials that underly these devices. As more accuracy is needed to adequately characterize, e.g. the energy conversion processes, in these materials, improvements on old approximations continually need to be made. Additionally, in order to be able to perform calculations on bigger and more complex systems, algorithmic devel- opment needs to be carried out so that newer, bigger computers can be maximally utilized to move science forward. -
Holography and Holomorphy in Quantum Field Theories and Gravity
Departamento de F´ısica de Part´ıculas HOLOGRAPHY AND HOLOMORPHY IN QUANTUM FIELD THEORIES AND GRAVITY Eduardo Conde Pena Santiago de Compostela, abril de 2012. UNIVERSIDADE DE SANTIAGO DE COMPOSTELA Departamento de F´ısica de Part´ıculas HOLOGRAPHY AND HOLOMORPHY IN QUANTUM FIELD THEORIES AND GRAVITY Eduardo Conde Pena Santiago de Compostela, abril de 2012. UNIVERSIDADE DE SANTIAGO DE COMPOSTELA Departamento de F´ısica de Part´ıculas HOLOGRAPHY AND HOLOMORPHY IN QUANTUM FIELD THEORIES AND GRAVITY Tese presentada para optar ao grao de Doutor en F´ısica por: Eduardo Conde Pena Abril, 2012 UNIVERSIDADE DE SANTIAGO DE COMPOSTELA Departamento de F´ısica de Part´ıculas Alfonso V´azquez Ramallo, Catedr´atico de F´ısica Te´orica da Universidade de Santiago de Compostela, CERTIFICO: que a memoria titulada “Holography and holomorphy in quantum field theories and gravity” foi realizada, baixo a mi˜na direcci´on, por Eduardo Conde Pena, no departamento de F´ısica de Part´ıculas desta Universidade e constit´ue o traballo de Tese que presenta para optar ao grao de Doutor en F´ısica. Asinado: Alfonso V´azquez Ramallo. Santiago de Compostela, abril de 2012. A mis padres What I cannot create, I cannot understand. Became famous when found in Feynman’s last chalkboard. Agradecementos En primer lugar me gustar´ıaagradecer a Alfonso Ramallo la oportunidad de hacer el doctorado bajo su tutela. Es alguien de quien un estudiante de doctorado tiene mucho que aprender: por ejemplo su metodolog´ıade trabajo, su dedicaci´on y su continua ilusi´on son excelentes valores para “un joven aprendiz”. Le tengo que agradecer las muchas veces que nos hemos sentado a hacer cuentas codo con codo, algo nada com´un y que alivia sobremanera la tortuosa iniciaci´on al mundo de la investigaci´on. -
Photoemission Footprints of Extrinsic Plasmarons
Photoemission footprints of extrinsic plasmarons B. Hellsing1;2∗ and V.M. Silkin2;3;4 1Department of Physics, Gothenburg University, S-41296 Gothenburg, Sweden 2Donostia International Physics Center (DIPC), 20018 San Sebasti´an,Spain 3Depto. de F´ısica de Materiales, Facultad de Ciencias Qu´ımicas, Universidad del Pa´ısVasco, Apdo. 1072, 20080 San Sebasti´an,Spain 4IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain A prediction how to experimentally distinguish excitations of extrinsic plasmarons from intrinsic plasmarons is presented. In surface systems where excitations of acoustic surface plasmons is possible it is shown that the photo-electron yield in normal photoemission should decay according to an inverse square root dependence with respect to the photon energy. A computational analysis of the system p(2×2)-K/Graphite confirms this prediction. PACS numbers: 73.21.Fg,73.20.Mf, 79.60.Dp INTRODUCTION THEORY The intention is to form a theory in order to calculate In photoemission experiments, photo-electrons carry the yield of extrinsic plasmaron excitations. The energy information of many-body interactions created by the loss induced by the escaping photo-electron in an ARPES photo-hole and by the escaping photo-electron itself. In experiment is given by the rate of electronic surface exci- the case of strong coupling between the photo-hole or in- tations. In first order time dependent perturbation the- duced density caused by the photo-electron, and plasmon ory, "golden-rule", we have that the rate of extrinsic excitations, the quasi particle picture breaks down and plasmaron excitation is given by [23] new loss peaks appear in the photoemission spectrum. -
An Examination and Assessment of Available Incoherent Scattering S
An Examination and Assessment of Available Incoherent Scattering S-Matrix Theory, also Compton Profile Information, and Their Impact on Photon Attenuation Coefficient Compilations J. H. Hubbell U.S. DEPARTMENT OF COMMERCE Technology Administration National Institute of Standards and Technology 100 Bureau Drive Stop 8463 Gaithersburg, MD 20899-8463 QC 100 NIST .1156 NO. 6358 1999 An Examination and Assessment of Available Incoherent Scattering S-Matrix Theory, also Compton Profile Information, and Their Impact on Photon Attenuation Coefficient Compilations J. H. Hubbell U.S. DEPARTMENT OF COMMERCE Technology Administration National Institute of Standards and Technology 100 Bureau Drive Stop 8463 Gaithersburg, MD 20899-8463 July 1999 U.S. DEPARTMENT OF COMMERCE William M. Daley, Secretary TECHNOLOGY ADMINISTRATION Gary R. Bachula, Acting Under Secretary for Technology NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY Raymond G. Kammer, Director . An Examination and Assessment of Available Incoherent Scattering S-Matrix Theory, also Compton Profile Information, and their Impact on Photon Attenuation Coefficient Compilations* J. H. Hubbeir* 11830 Rocking Horse Road, Rockville, MD 20852 Abstract The Klein-Nishina formulae for the differential and integral cross sections for Compton (or incoherent) scattering of x-ray photons from atomic electrons assume that the electrons are free (unbound) and at rest, which is a good approximation for photons of the order of 1 MeV or higher, particularly for low-Z target materials. The probability for dislodging bound electrons can be taken into account at least approximately by including an incoherent scattering function S(x,Z) in the differential Klein-Nishina formula. Currently available systematic theoretical tabulations of S(x,Z), where x is a momentum transfer variable dependent on the photon deflection angle and the photon incident energy do not use S-matrix theory with its claimed higher accuracy. -
Graphene Spectroscopy
Colloquium: Graphene spectroscopy D. N. Basov and M. M. Fogler Department of Physics, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA A. Lanzara and Feng Wang Department of Physics, University of California at Berkeley, Berkeley, California 94720, USA Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA Yuanbo Zhang ( 远波) State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China (Dated: July 28, 2014) Spectroscopic studies of electronic phenomena in graphene are reviewed. A variety of methods and techniques are surveyed, from quasiparticle spectroscopies (tunneling, photoemission) to methods probing density and current response (infrared optics, Raman) to scanning probe nanoscopy and ul- trafast pump-probe experiments. Vast complimentary information derived from these investigations is shown to highlight unusual properties of Dirac quasiparticles and many-body interaction effects in the physics of graphene. PACS numbers: 81.05.Uw, 73.20.-r, 03.65.Pm, 82.45.Mp CONTENTS (2D) allotrope of carbon is characterized by a number of su- perlative virtues (Geim, 2009), e.g., a record-high electronic I. Introduction1 mobility at ambient conditions (Morozov et al., 2008), excep- A. Scope of this review1 B. Graphene morphology2 tional mechanical strength (Lee et al., 2008a), and thermal C. Electronic structure of graphene neglecting interactions3 conductivity (Balandin et al., 2008; Ghosh et al., 2008) Re- D. Many-body effects and observables4 markable properties of graphene have ignited tremendous in- terest that resulted in approximately 50,000 publications at the II. Quasiparticle properties6 1 A. Dirac spectrum and chirality6 time of writing. -
Spin Transport in a Quantum Hall Insulator
applied sciences Article Spin Transport in a Quantum Hall Insulator Azaliya Azatovna Zagitova 1,*, Andrey Sergeevich Zhuravlev 1, Leonid Viktorovich Kulik 1 and Vladimir Umansky 2 1 Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Russia; [email protected] (A.S.Z.); [email protected] (L.V.K.) 2 Braun Center for Submicron Research, Weizmann Institute of Science, Rehovot 76100, Israel; [email protected] * Correspondence: [email protected] Abstract: A novel experimental optical method, based on photoluminescence and photo-induced resonant reflection techniques, is used to investigate the spin transport over long distances in a new, recently discovered collective state—magnetofermionic condensate. The given Bose–Einstein condensate exists in a purely fermionic system (ν = 2 quantum Hall insulator) due to the presence of a non-equilibrium ensemble of spin-triplet magnetoexcitons—composite bosons. It is found that the condensate can spread over macroscopically long distances of approximately 200 µm. The propagation velocity of long-lived spin excitations is measured to be 25 m/s. Keywords: spintronics; spin transport; excitations; low-dimensional systems; spectroscopy; the Bose–Einstein condensate 1. Introduction The growing interest in spintronics [1,2] has been incited by the prospect of build- Citation: Zagitova, A.A.; Zhuravlev, ing fast, energy-efficient devices utilizing the electron spin. In particular, there has been A.S.; Kulik, L.V.; Umansky, V. Spin rapid development in magnonics [3], which uses spin waves to transport information [4,5]. Transport in a Quantum Hall Magnonic systems are free of many disadvantages of electronic systems associated with Insulator. -
Three-Particle Electron-Hole Complexes in Two-Dimensional Electron Systems
Three-particle electron-hole complexes in two-dimensional electron systems V. A. Kuznetsov,1, 2, ∗ L. V. Kulik,2 M. D. Velikanov,3, 4 A. S. Zhuravlev,2 A. V. Gorbunov,2 S. Schmult,5, y and I. V. Kukushkin2, 1 1National Research University Higher School of Economics, 141700 Moscow, Russia 2Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Russia 3Moscow Institute of Physics and Technology, 141700 Dolgoprudniy, Russia 4Skolkovo Institute of Science and Technology, Nobel str. 3, 143026 Moscow, Russia 5Max-Planck-Institut f¨urFestk¨orperforschung, Heisenbergstraße 1, 70569 Stuttgart, Germany. (Dated: August 15, 2018) Three-particle complexes consisting of two holes in the completely filled zero electron Landau level and an excited electron in the unoccupied first Landau level are investigated in a quantum Hall insulator. The distinctive features of these three-particle complexes are an electron-hole mass symmetry and the small energy gap of the quantum Hall insulator itself. Theoretical calculations of the trion energy spectrum in a quantizing magnetic field predict that, besides the ground state, trions feature a hierarchy of excited bound states. In agreement with the theoretical simulations, we observe new photoluminescence lines related to the excited trion states. A relatively small energy gap allows the binding of three-particle complexes with magnetoplasma oscillations and formation of plasmarons. The plasmaron properties are investigated experimentally. PACS numbers: 73.43.Lp, 71.35.Pq, 78.55.-m, 73.21.Fg Keywords: Quantum Hall Effect, Photoluminescence, Trion, Plasmaron I. INTRODUCTION QW bound to it (D0 complex) and a photoexcited ex- 9 citon bound to a D0 complex . -
Photoemission Footprints of Extrinsic Plasmarons
PHYSICAL REVIEW B 92, 205421 (2015) Photoemission footprints of extrinsic plasmarons B. Hellsing1,2,* and V. M. Silkin2,3,4 1Department of Physics, Gothenburg University, S-41296 Gothenburg, Sweden 2Donostia International Physics Center (DIPC), 20018 San Sebastian,´ Spain 3Departamento de F´ısica de Materiales, Facultad de Ciencias Qu´ımicas, Universidad del Pa´ıs Vasco, Apartado 1072, 20080 San Sebastian,´ Spain 4IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain (Received 23 June 2015; revised manuscript received 21 October 2015; published 18 November 2015) A prediction of how to experimentally distinguish excitations of extrinsic plasmarons from intrinsic plasmarons is presented. In surface systems where excitations of acoustic surface plasmons are possible, it is shown that the photoelectron yield in normal photoemission should decay according to an inverse square-root dependence with respect to the photon energy. A computational analysis of the system p(2×2)-K/graphite confirms this prediction. DOI: 10.1103/PhysRevB.92.205421 PACS number(s): 73.21.Fg, 73.20.Mf, 79.60.Dp I. INTRODUCTION experiment is given by the rate of electronic surface excita- tions. Applying linear response theory the rate of extrinsic In photoemission experiments, photoelectrons carry infor- plasmaron excitation is given by [23] mation of many-body interactions created by the photohole and by the escaping photoelectron itself. In the case of −qz˜ strong coupling between the photohole or induced density 4π e W(ω,z˜) = Im[g(q,ω)], (1) caused by the photoelectron, and plasmon excitations, the A q q quasiparticle picture breaks down and new loss peaks appear in the photoemission spectrum. -
J^ABBEY & PRINTING ^A Unit 3 Gabalfa Workshops Excelsior Ind
Bound by University of South Wales BOOKBINDING J^ABBEY & PRINTING ^A Unit 3 Gabalfa Workshops Excelsior Ind. Est, Cardiff CF14 SAY Tel: (029) 2062 3290 Fax: (029) 2062 5420 Email: info@abbeybookbmding co.uk 2064725 Web: www.abbeybookbinding co uk A Sonic Arts Approach to Sound Design Practice Carl John Boland A submission presented in partial fulfilment of the requirements of the University of Glamorgan/Prifysgol Morgannwg for the degree of Doctor of Philosophy July 2012 Certificate of Research This is to certify that, except where specific reference is made, the work described in this thesis is the result of the candidate's research. Neither this thesis, nor any part of it, has been presented, or is currently submitted, in candidature for any degree at any other University. Signed Candidate Date 2nd July 2012. Signed .......................... Director of Studies Date .......................... 11 Acknowledgements I would like to sincerely thank my Director of Studies, Paschall de Paor, for his guidance and unfailing faith in me over many years. I would also like to thank my second supervisor, leuan Morris, for his advice and valued contribution to the research. I also owe a considerable debt of gratitude to the Cardiff School of Creative & Cultural Industries for supporting my practice-research. I am eternally grateful to the filmmakers who participated in this study and gave me the opportunity to work alongside them. To Clive Myer, in particular, thank you for being such a patient mentor on the art of filmmaking. To my wife Sueko and daughter Yoshino: Without your love and encouragement, I would not have made it to the end of this journey.