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|a 9783658118112
|9 978-3-658-11811-2
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|a 10.1007/978-3-658-11811-2
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|a Pauly, Christian.
|e author.
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|a Strong and Weak Topology Probed by Surface Science
|h [electronic resource] :
|b Topological Insulator Properties of Phase Change Alloys and Heavy Metal Graphene /
|c by Christian Pauly.
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|a 1st ed. 2015.
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|a Wiesbaden :
|b Springer Fachmedien Wiesbaden :
|b Imprint: Springer,
|c 2015.
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|a VIII, 166 p. 77 illus., 53 illus. in color.
|b online resource.
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|a Christian Pauly demonstrates the strong topological properties of the technologically relevant phase change materials Sb2Te3 and Ge2Sb2Te5 by using two powerful techniques for mapping the surface electronic structure: scanning tunneling spectroscopy (STS) and angle-resolved photoemission spectroscopy (ARPES). In the case of a phase change material, this opens up the possibility of switching between an insulating amorphous and a conducting topological phase on nanosecond-time scales. Moreover, the author presents first experimental results of a weak topological insulator, namely on the bismuth-based graphene-like sheet system Bi14Rh3I9, revealing a topologically protected one-dimensional edge channel as its fingerprint. The edge state is as narrow as 0.8 nm, making it extremely attractive to device physics. Those strong and weak topological insulators are a new phase of quantum matter giving rise to robust boundary states which are protected from backscattering and localization. Contents Fundamentals of topological insulators Experimental methods Identification of tellurium based phase change materials as strong topological insulators Weak topological insulators Target Groups Researchers and students from the fields of physics, especially condensed materials About the Author Christian Pauly is working as a postdoc in the II. Institute of physics B of the RWTH Aachen University. His work focuses on the study of the topological properties of graphene-like sheet systems which belong to the class of weak topological insulators.
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|a Solid state physics.
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|a Nanoscale science.
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|a Nanoscience.
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|a Nanostructures.
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|a Spectroscopy.
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|a Solid State Physics.
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|a Nanoscale Science and Technology.
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|a Spectroscopy and Microscopy.
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|a SpringerLink (Online service)
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|i Printed edition:
|z 9783658118105
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|u http://dx.doi.org/10.1007/978-3-658-11811-2
|z Full Text via HEAL-Link
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|a ZDB-2-SBL
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|a Biomedical and Life Sciences (Springer-11642)
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