Micromagnetic Sensors and Dirac Fermions in HgTe Heterostructures: = Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
2012
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| Schlagworte: | |
| Online-Zugang: | kostenfrei Inhaltsverzeichnis |
| Beschreibung: | Zsfassung in dt. und engl. Sprache |
| Beschreibung: | 170 S. Ill., graph. Darst. |
Internformat
MARC
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| 245 | 1 | 0 | |a Micromagnetic Sensors and Dirac Fermions in HgTe Heterostructures |b = Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen |c von Bastian Büttner |
| 246 | 1 | 1 | |a Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen |
| 264 | 1 | |c 2012 | |
| 300 | |a 170 S. |b Ill., graph. Darst. | ||
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| 502 | |a Würzburg, Univ., Diss., 2012 | ||
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Datensatz im Suchindex
| _version_ | 1804149453427310592 |
|---|---|
| adam_text | IMAGE 1
C O N T E N T S
ZUSAMMENFASSUNG 1
S U M M A R Y 4
1 INTRODUCTION 9
2 M I C R O M A G N E T I C SENSORS 1 3
2.1 MICROMAGNETISM 16
2.1.1 FERROMAGNETISM 16
2.1.2 MAGNETIZATION ARID HYSTERESIS 18
2.1.3 MAGNETIC ENERGIES 19
2.1.4 DOMAINS AND DOMAIN WALLS 22
2.1.5 DOMAINS IN A N EXTERNAL FIELD 24
2.1.6 STRAY FIELD OF A RECTANGULAR BAR 25
2.1.7 STRAY FIELD OF A PARTICLE 30
2.2 MICRO-IIALL MAGNETOMETRY 32
2.2.1 2D ELECTRON GAS 32
2.2.2 ELECTRONIC TRANSPORT 36
2.2.3 QUANTUM HALL EFFECT 40
2.2.4 LOCAL HALL EFFECT, 45
2.2.5 FABRICATION 52
2.2.6 EXPERIMENTAL SETUP 55
2.2.7 MEASUREMENTS AND DISCUSSION 58
2.3 MICRO-SQUFD SENSORS 72
2.3.1 BASICS OF MICRO-SQUFD OPERATION 73
2.3.2 FABRICATION OF MICRO-SQULDS 81
2.3.3 MEASUREMENT SETUP 83
2.3.4 RESOLUTION OF A MICRO-SQUID 86
2.3.5 INVESTIGATION OF A NANOMAGNET 88
2.4 CONCLUSION 90
HTTP://D-NB.INFO/1027037208
IMAGE 2
IV
CONTENTS
3 DIRAC FERMIONS IN H G T E HETEROSTRUCTURES 9 3
3.1 PROPERTIES OF (PIG,CD)TE QUANTUM WELLS 93
3.2 SINGLE VALLEY DIRAC FERMIONS IN ZERO-GAP HGTE QUANTUM WELLS 99
3.2.1 ENERGY DISPERSION FOR M . = 0 99
3.2.2 FABRICATION AND MEASUREMENT SETUP 101
3.2.3 IDENTIFICATION OF THE ENERGY GAP USING THE QUANTUM HALL EFFECT . .
102 3.2.4 CHARACTERIZATION OF THE ZERO-GAP SAMPLE 107
3.2.5 MEASUREMENTS WITHOUT MAGNETIC FIELD 113
3.3 WEAK ANTI-LOCALIZATION EFFECT IN HGTE NANOSTRUCTURES 116
3.3.1 ONE-DIMENSIONAL CONDUCTANCE 116
3.3.2 PARABOLIC BACKGROUND 117
3.3.3 UNIVERSAL CONDUCTANCE FLUCTUATIONS 120
3.3.4 LOCALIZATION 124
3.3.5 WAL AND UCF FOR AN ENSEMBLE ON INVERTED HGTE Q W 134
3.3.6 WAL AND UCF FOR ZERO RASHBA 138
3.3.7 WAL FOR NORMAL QUANTUM WELL 141
3.3.8 CONCLUSION 142
A FABRICATION P R O C E S S E S 1 4 5
A.L MACRO-HALL BAR ON INAS 2DEG 145
A.2 MICRO-HALL BAR ON INAS 2DEG 146
A.3 MACRO-IIALL BAR ON HGTE 2DEG 148
A.4 MICRO-HALL BAR ON HGTE 2DEG 149
A.5 MICRO-SQUID FABRICATION 150
B SUBSTRATES A N D S A M P L E S 1 5 3
C M A G N E T I C MATERIALS 1 5 5
ABBREVIATIONS 156
BIBLIOGRAPHY 158
LIST O F FIGURES 167
LIST O F TABLES 1 6 9
PUBLICATIONS 1 7 0
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| physical | 170 S. Ill., graph. Darst. |
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| publishDate | 2012 |
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| spelling | Büttner, Bastian 1979- Verfasser (DE-588)1025725182 aut Micromagnetic Sensors and Dirac Fermions in HgTe Heterostructures = Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen von Bastian Büttner Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen 2012 170 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Zsfassung in dt. und engl. Sprache Würzburg, Univ., Diss., 2012 Quecksilbertellurid (DE-588)4351541-1 gnd rswk-swf Heterostruktur (DE-588)4123378-5 gnd rswk-swf Magnetischer Sensor (DE-588)4661072-8 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Quecksilbertellurid (DE-588)4351541-1 s Heterostruktur (DE-588)4123378-5 s Magnetischer Sensor (DE-588)4661072-8 s DE-604 Erscheint auch als Online-Ausgabe urn:nbn:de:bvb:20-opus-72556 https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-72556 Resolving-System kostenfrei Volltext DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025256278&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Büttner, Bastian 1979- Micromagnetic Sensors and Dirac Fermions in HgTe Heterostructures = Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen Quecksilbertellurid (DE-588)4351541-1 gnd Heterostruktur (DE-588)4123378-5 gnd Magnetischer Sensor (DE-588)4661072-8 gnd |
| subject_GND | (DE-588)4351541-1 (DE-588)4123378-5 (DE-588)4661072-8 (DE-588)4113937-9 |
| title | Micromagnetic Sensors and Dirac Fermions in HgTe Heterostructures = Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen |
| title_alt | Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen |
| title_auth | Micromagnetic Sensors and Dirac Fermions in HgTe Heterostructures = Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen |
| title_exact_search | Micromagnetic Sensors and Dirac Fermions in HgTe Heterostructures = Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen |
| title_full | Micromagnetic Sensors and Dirac Fermions in HgTe Heterostructures = Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen von Bastian Büttner |
| title_fullStr | Micromagnetic Sensors and Dirac Fermions in HgTe Heterostructures = Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen von Bastian Büttner |
| title_full_unstemmed | Micromagnetic Sensors and Dirac Fermions in HgTe Heterostructures = Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen von Bastian Büttner |
| title_short | Micromagnetic Sensors and Dirac Fermions in HgTe Heterostructures |
| title_sort | micromagnetic sensors and dirac fermions in hgte heterostructures mikromagnetische sensoren und dirac fermionen in hgte heterostrukturen |
| title_sub | = Mikromagnetische Sensoren und Dirac Fermionen in HgTe Heterostrukturen |
| topic | Quecksilbertellurid (DE-588)4351541-1 gnd Heterostruktur (DE-588)4123378-5 gnd Magnetischer Sensor (DE-588)4661072-8 gnd |
| topic_facet | Quecksilbertellurid Heterostruktur Magnetischer Sensor Hochschulschrift |
| url | https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-72556 http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025256278&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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