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Course Catalog 2014-2015
FYS-2406 Nanostructures and Elementary Surface Processes, 5 cr |
Additional information
Lectured on request.
Suitable for postgraduate studies
Person responsible
Mika Valden
Lessons
| Study type | P1 | P2 | P3 | P4 | Summer | Implementations | Lecture times and places |
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Requirements
Passed learning assignments.
Completion parts must belong to the same implementation
Learning Outcomes
After completing the course, the student will be able to define the physical operation principles of LEED and STM methods for analysis of geometric and electronic structure of surfaces as well as the physical operation principles of TPTDS and MBSS methods for surface reactivity studies. The student will learn how to apply these methods to establish a correlation between surface structure and reactivity. During the course, the student will learn to solve surface analytic research problems in tutorial learning sessions (groups of 4-6 students) based on the shared expertise of the group members. The student will master the skills required to report the results of the learning assignments using Moodle learning management system as well as in the forms of a research report and a seminar presentation.
Content
| Content | Core content | Complementary knowledge | Specialist knowledge |
| 1. | Surface science perspective to technologies: Surface science approach to nanotechnology. Correlation between surface structure and its reactivity. | ||
| 2. | Geometric structure of surfaces: Periodic structures on surfaces and surface defects. Two-dimensional Bravais lattices. Notation of surface structures. Commensurate and incommensurate surface phases. | Oxygen vacancies on TiO2(110)-(1x1). Functionality of a supported metal cluster. | Incoherent surface phases. |
| 3. | Low energy electron diffraction (LEED): Reciprocal lattice and reciprocal space matrix. Ewald construction in two-dimension. Formation of a LEED pattern. Surface sensitivity in LEED. LEED apparatus. | Quantitative LEED experiment. | Kinematic and dynamic theories in LEED analysis. |
| 4. | Scanning tunneling microscopy (STM): Dimensions in STM research. Tunneling and STM-experiment. Influence of the STM tip to imaging. | VT-STM system. Reactivity of Au nanoclusters on TiO2(110). | Tersoff and Hamann theory. Manipulation of surfaces with STM tip. |
| 5. | Surface reactivity properties: Influence of the electronic structure of surfaces to surface chemical bond formation. Reactivity of single surface sites and surface phases. Reactivity of alloyed surfaces. | Surface bond strength of oxygen atoms on transition metal surfaces. Combinatorial screening technique. | Atomic-level manipulation of surface reactions. |
| 6. | Temperature-programmed thermal desorption spectroscopy (TPTDS): Thermal desorption spectroscopy. TDS measurement. Analysis of TDS spectra. Desorption kinetics and determination of kinetic parameters. | Interference sources in TDS measurements. Spectral shape. | CO desorption from Pd(111). O2 desorption from Ru(0001). |
| 7. | Molecular beam surface scattering (MBSS): Dynamics of surface processes. Potential energy surface. Adsorption kinetics and dynamics. Molecular beams. Properties of a nozzle beam. Adsorption kinetics of CO on Rh(110). Adsorption dynamics of oxygen molecules on Cu(100) and O/Cu(100) surfaces. | MBSS system. Skimmer and nozzle designs. Molecular dynamics simulation of adsorption. Transient reaction kinetics. Intrinsic and extrinsic precursor states. | Knudsen number. |
Instructions for students on how to achieve the learning outcomes
The assessment of the course is either numeric on the grade scale of 0 ... 5 or "Pass/Fail". The assessment method will be decided together with the students at the beginning of the course. The numeric assessment is based on a literature exam. If the student demonstrates thorough understanding of the core content, s/he may pass the course with the grade 3. In order to achieve grade 4, the student must also demonstrate competency in the points specified in column "Complementary knowledge". The student may achieve grade 5, if s/he demonstrates good command of the points specified in column "Specialist knowledge". If there are minor shortcomings regarding the core content, the student may receive the grade 1 or 2, depending on the number of flaws. If there are significant shortcomings regarding core content, the student will not pass the course. The assessment of the course can also be "Pass/Fail". The student can earn the passing grade, if s/he has completed all the learning assignments in a satisfactory manner.
Assessment scale:
Numerical evaluation scale (1-5) will be used on the course
Partial passing:
Study material
| Type | Name | Author | ISBN | URL | Edition, availability, ... | Examination material | Language |
| Book | Scanning Probe Microscopy and Spectroscopy | Wiesendanger, R. | 0 521 42847 5 | Cambridge University Press, 1. edition, 1998 | Yes | English | |
| Lecture slides | Valden Mika | Yes | English |
Prerequisite relations (Requires logging in to POP)
Correspondence of content
| Course | Corresponds course | Description |
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More precise information per implementation
| Implementation | Description | Methods of instruction | Implementation |