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Author | Title | Accn# | Year | Item Type | Claims |
| 1 |
McGuinness, Philippa H |
Probing Unconventional Transport Regimes in Delafossite Metals |
I12227 |
2022 |
Book |
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| 2 |
Alvertis, Antonios M |
On Exciton???Vibration and Exciton???Photon Interactions in Organic Semiconductors |
I11874 |
2021 |
eBook |
|
| 3 |
D??az Fern??ndez, ??lvaro |
Reshaping of Dirac Cones in Topological Insulators and Graphene |
I11692 |
2021 |
eBook |
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1.
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| Title | Probing Unconventional Transport Regimes in Delafossite Metals |
| Author(s) | McGuinness, Philippa H |
| Publication | Cham, 1. Imprint: Springer
2. Springer International Publishing, 2022. |
| Description | XVII, 140 p. 83 illus., 72 illus. in color : online resource |
| Abstract Note | This thesis describes in-depth studies of the remarkable electronic transport within the ultrahigh conductivity delafossite metals PtCoO_2 and PdCoO_2 using the tool of focused ion beam (FIB) microstucturing. Despite being first synthesised over 50 years ago, important questions remain regarding both the origin of the unusually high conductivity of these compounds and the consequences of their unique properties for unconventional electronic transport, such as that within the ballistic regime. The thesis explores both these areas. High-energy electron irradiation is used to examine the effects of deliberately introducing point defects into PdCoO_2 and PtCoO_2, demonstrating that the extremely low resistivity of these materials stems from an extreme purity as high as 1 defect in 120,000 atoms, rather than a novel scattering suppression mechanism. In addition, studies of the electronic transport in micron-scale squares of these metals show that their broadly hexagonal Fermi surfaces lead not only to long range ballistic behaviour but novel ballistic regime phenomena which cannot be observed in materials with a higher-symmetry Fermi surface |
| ISBN,Price | 9783031142444 |
| Keyword(s) | 1. CONDENSED MATTER
2. CONDENSED MATTER PHYSICS
3. EBOOK
4. EBOOK - SPRINGER
5. ELECTRONIC STRUCTURE
6. Electronic Structure Calculations
7. Materials science???Data processing
8. METALS
9. Metals and Alloys
10. Phase Transition and Critical Phenomena
11. Quantum chemistry???Computer programs
12. SUPERCONDUCTIVITY
13. SUPERCONDUCTORS
|
| Item Type | Book |
Multi-Media Links
Please Click here for eBook
Circulation Data
| Accession# | |
Call# | Status | Issued To | Return Due On | Physical Location |
| I12227 |
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On Shelf |
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2.
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| Title | On Exciton???Vibration and Exciton???Photon Interactions in Organic Semiconductors |
| Author(s) | Alvertis, Antonios M |
| Publication | Cham, Springer International Publishing, 2021. |
| Description | XIX, 202 p. 70 illus., 60 illus. in color : online resource |
| Abstract Note | What are the physical mechanisms that underlie the efficient generation and transfer of energy at the nanoscale? Nature seems to know the answer to this question, having optimised the process of photosynthesis in plants over millions of years of evolution. It is conceivable that humans could mimic this process using synthetic materials, and organic semiconductors have attracted a lot of attention in this respect. Once an organic semiconductor absorbs light, bound pairs of electrons with positively charged holes, termed `excitons???, are formed. Excitons behave as fundamental energy carriers, hence understanding the physics behind their efficient generation and transfer is critical to realising the potential of organic semiconductors for light-harvesting and other applications, such as LEDs and transistors. However, this problem is extremely challenging since excitons can interact very strongly with photons. Moreover, simultaneously with the exciton motion, organic molecules can vibrate in hundreds of possible ways, having a very strong effect on energy transfer. The description of these complex phenomena is often beyond the reach of standard quantum mechanical methods which rely on the assumption of weak interactions between excitons, photons and vibrations. In this thesis, Antonios Alvertis addresses this problem through the development and application of a variety of different theoretical methods to the description of these strong interactions, providing pedagogical explanations of the underlying physics. A comprehensive introduction to organic semiconductors is followed by a review of the background theory that is employed to approach the relevant research questions, and the theoretical results are presented in close connection with experiment, yielding valuable insights for experimentalists and theoreticians alike. |
| ISBN,Price | 9783030854546 |
| Keyword(s) | 1. Computational Physics and Simulations
2. COMPUTER SIMULATION
3. EBOOK
4. EBOOK - SPRINGER
5. ELECTRONIC STRUCTURE
6. Electronic Structure Calculations
7. Materials science???Data processing
8. MATHEMATICAL PHYSICS
9. OPTICAL ENGINEERING
10. OPTOELECTRONIC DEVICES
11. PHOTONICS
12. Photonics and Optical Engineering
13. Photovoltaic power generation
14. PHOTOVOLTAICS
15. Quantum chemistry???Computer programs
16. SEMICONDUCTORS
|
| Item Type | eBook |
Multi-Media Links
Please Click here for eBook
Circulation Data
| Accession# | |
Call# | Status | Issued To | Return Due On | Physical Location |
| I11874 |
|
|
On Shelf |
|
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|
|
3.
| |
| Title | Reshaping of Dirac Cones in Topological Insulators and Graphene |
| Author(s) | D??az Fern??ndez, ??lvaro |
| Publication | Cham, Springer International Publishing, 2021. |
| Description | XXVI, 183 p. 56 illus., 55 illus. in color : online resource |
| Abstract Note | Dirac cones are ubiquitous to non-trivial quantum matter and are expected to boost and reshape the field of modern electronics. Particularly relevant examples where these cones arise are topological insulators and graphene. From a fundamental perspective, this thesis proposes schemes towards modifying basic properties of these cones in the aforementioned materials. The thesis begins with a brief historical introduction which is followed by an extensive chapter that endows the reader with the basic tools of symmetry and topology needed to understand the remaining text. The subsequent four chapters are devoted to the reshaping of Dirac cones by external fields and delta doping. At all times, the ideas discussed in the second chapter are always a guiding principle to understand the phenomena discussed in those four chapters. As a result, the thesis is cohesive and represents a major advance in our understanding of the physics of Dirac materials |
| ISBN,Price | 9783030615550 |
| Keyword(s) | 1. CONDENSED MATTER
2. CONDENSED MATTER PHYSICS
3. EBOOK
4. EBOOK - SPRINGER
5. ELECTRONIC STRUCTURE
6. Electronic Structure Calculations
7. Materials science???Data processing
8. Quantum chemistry???Computer programs
9. QUANTUM PHYSICS
10. Surfaces (Technology)
11. Surfaces, Interfaces and Thin Film
12. THIN FILMS
13. Topological insulators
14. Topological Material
|
| Item Type | eBook |
Multi-Media Links
Please Click here for eBook
Circulation Data
| Accession# | |
Call# | Status | Issued To | Return Due On | Physical Location |
| I11692 |
|
|
On Shelf |
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