Ladungstransport in supraleitenden Nanostrukturen:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | German |
| Veröffentlicht: |
Aachen
Shaker
2000
|
| Ausgabe: | Als Ms. gedr. |
| Schriftenreihe: | Berichte aus der Physik
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Zugl.: Karlsruhe, Univ., Diss., 1999 |
| Beschreibung: | XII, 145 S. Ill., graph. Darst. : 21 cm |
| ISBN: | 3826570588 |
Internformat
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Datensatz im Suchindex
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|---|---|
| adam_text | BERICHTE AUS DER PHYSIK
FRANK K. WILHELM
LADUNGSTRANSPORT IN
SUPRALEITENDEN NANOSTRUKTUREN
SHAKER VERLAG
AACHEN 2000
CONTENTS
1 INTRODUCTION 1
1 SUPERCONDUCTING/NORMAL STRUCTURES 7
2 PHENOMENA AT SN-INTERFACES 9
2.1 TRANSFER MECHANISMS 9
2.1.1 TUNNELING . . 10
2.1.2 ANDREEV REFLECTION 10
2.2 INDUCED SUPERCONDUCTIVITY 12
2.2.1 PROXIMITY EFFECT 12
2.2.2 INTERFERENCE IN THE NORMAL METAL 12
2.2.3 DECAY OF INDUCED COHERENCE 13
3 INTRODUCTION TO THE FORMALISM 15
3.1 GREEN S FUNCTIONS 15
3.2 THE QUASICLASSICAL APPROXIMATION 17
3.2.1 GRADIENT EXPANSION 17
3.2.2 QUASICLASSICAL GREEN S FUNCTIONS 18
3.3 KINETICS AND TIME-ORDERING 19
3.3.1 MATSUBARA TECHNIQUE 19
3.3.2 THE KELDYSH TECHNIQUE 20
3.4 THE DIRTY LIMIT 21
3.4.1 USADEL EQUATIONS IN MATSUBARA TECHNIQUE 21
3.4.2 THE USADEL EQUATION FOR KELDYSH GREEN S FUNCTIONS 22
3.4.3 PHYSICAL QUANTITIES AND KELDYSH GREEN S FUNCTIONS 24
3.5 BOUNDARY CONDITIONS 25
3.6 *-PARAMETERIZATION 27
3.7 SOLUTION STRATEGIES 28
4 DIFFUSION AND TUNNELING IN ANDREEV INTERFEROMETERS 29
4.1 ANDREEV INTERFEROMETERS 29
4.2 EXPERIMENT 30
VIII CONTENTS
4.2.1 THE SETUP 30
4.2.2 MEASUREMENTS 31
4.3 THEORETICAL DESCRIPTION 33
4.3.1 MAPPING AND TOPOLOGICAL EQUIVALENCE 33
4.3.2 SOLUTION OF THE RETARDED USADEL EQUATION 33
4.3.3 SOLUTION OF THE KINETIC EQUATION 34
4.3.4 DISCUSSION OF THE DIFFUSION CONTRIBUTION 35
4.3.5 NUMERICAL RESULTS 37
4.3.6 LONG RANGE COHERENCE ? 40
5 TUNNELING AND DIFFUSION IN MESOSCOPIC SNIS-JUNCTIONS 41
5.1 ASYMMETRIC SNIS-JUNCTIONS AS JOSEPHSON
CONTACTS 41
5.2 NUMERICAL RESULTS 42
5.3 REALIZATION IN ANDREEV INTERFEROMETERS 42
6 DISSIPATIVE TRANSPORT IN PROXIMITY FILMS 49
6.1 STATEMENT OF THE PROBLEM 49
6.2 THE MODEL AND THE FORMALISM 50
6.3 CONDUCTANCE 52
6.4 THE NETWORK MODEL 54
6.5 DISTRIBUTION OF THE CURRENT FLOW 54
6.6 DISCUSSION 55
6.7 AN ALTERNATIVE SETUP 57
7 TOWARDS AN EXTENSION OF QUASICLASSICS INCLUDING THERMOELECTRICITY 59
7.1 THERMOELECTRICITY IN METALS 59
7.2 EXTENDED QUASICLASSICAL FORMALISM 60
7.2.1 THE QUASICLASSICAL APPROXIMATION REVISITED 60
7.2.2 AN EXTENDED FORMALISM 61
7.2.3 CURRENT FORMULAE 62
7.3 RESULTS 62
7.3.1 THE EXPERIMENTAL SETUP 63
7.3.2 QUASICLASSICAL RESULTS 63
7.3.3 L
12
AND THE THERMOPOWER 64
7.3.4 COMPARISON TO EXPERIMENTS 66
8 THE MESOSCOPIC SNS TRANSISTOR 69
8.1 THE SYSTEM: QUALITATIVE ASPECTS 69
8.2 EQUILIBRIUM PROPERTIES, CRITICAL CURRENT 71
8.3 SPECTRAL PROPERTIES 73
8.4 ELASTIC KINETICS 75
8.5 RESULTS 75
CONTENTS IX
8.6 OTHER WAYS TO CONTROL THE SUPERCURRENT 79
8.7 LIMITATIONS AND EXTENSIONS 79
8.8 DECOHERENCE 80
8.9 PERFORMANCE 80
9 TOWARDS A TIME-DEPENDENT FORMULATION 83
9.1 STATEMENT OF THE PROBLEM 83
9.2 THE AC-USADEL EQUATION 84
9.2.1 THE DOUBLE-TIME USADEL EQUATION 84
9.2.2 MIXED REPRESENTATION 84
9.2.3 BULK SOLUTION 85
9.3 ADIABATIC EXPANSION 85
9.3.1 THE CONCEPT OF THE ADIABATIC APPROXIMATION 85
9.3.2 CRITERIA ON THE RELAXATION MECHANISM 85
9.4 RENORMALIZED RSJ-MODEL 87
9.5 RESULTS 88
9.5.1 CONDUCTANCE AND EXCESS CURRENT 88
9.5.2 CVC AND NONEQUILIBRIUM FOOT 89
9.6 THE WAY AHEAD 89
II CHARGING EFLFECTS AND COULOMB BLOCKADE 93
10 SUPERCONDUCTIVITY, COULOMB INTERACTION AND DISSIPATION 95
10.1 CHARGING ENERGY AND COULOMB BLOCKADE 95
10.2 THE ROLE OF SUPERCONDUCTIVITY 96
10.3 THE ROLE OF DISSIPATION 98
11 SINGLE CHARGE TRANSISTOR IN A TUNABLE DISSIPATIVE ENVIRONMENT 99
11.1 THE SYSTEM UNDER CONSIDERATION 99
11.2 THE MODEL FOR THE ENVIRONMENT 100
11.3 THE SEQUENTIAL TUNNELING CURRENT 100
11.4 COTUNNELING 103
11.5 TRANSPORT REGIMES 104
11.6 SPATIALLY DISTRIBUTED RESERVOIRS 104
11.7 NORMAL STATE 106
11.8 CONCLUDING REMARKS 108
12 SUMMARY 109
A THE RELAXATION METHOD 113
A.L INSTABILITY . 113
A.2 THE RELAXATION METHOD 113
A.3 THE MULTIDIMENSIONAL NEWTON ALGORITHM 114
CONTENTS
* THE CONTOUR INTEGRATION FOR EXTENDED QUASICLASSICS 115
B.L STATEMENT OF THE PROBLEM 115
B.2 NATURAL CUTOFFS 116
* EXPLICIT CALCULATIONS FOR THE SET 117
C.L EFFECTIVE IMPEDANCE 117
C.2 THE CORRELATION FUNCTION K(T) 118
C.3 THE VERTEX P(E) 119
C.4 THE COTUNNELING RATE 121
C.5 THE TUNNELING RATE IN THE NORMAL STATE 122
D DEUTSCHE ZUSAMMENFASSUNG 123
D.L ALLGEMEINES 123
D.2 ANDREJEWREFLEXION UND PROXIMITYEFFEKT 124
D.3 FORMALISMUS: QUASIKLASSISCHE GREENSCHE FUNKTIONEN 125
D.4 DISSIPATIVER LADUNGSTRANSPORT IN ANDREJEW-INTERFEROMETERN 126
D.5 ANDREJEW-INTERFEROMETER MIT SUPRALEITENDEN TUNNELKONTAKTEN ... 127
D.6 ANOMALER PROXIMITYEFFEKT IN FILMSTRUKTUREN 128
D.7 THERMOELEKTRISCHE EFFEKTE 129
D.8 STEUERBARER SUPRASTROM IM SNS-TRANSISTOR 129
D.9 ZEITABHAENGIGE PHAENOMENE IN SNS-KONTAKTEN 130
D.10 COULOMBBLOCKADE, SUPRALEITUNG UND DISSIPATION 131
D.LL SUPRALEITENDER SCT IN EINER DISSIPATIVEN UMGEBUNG 132
D.12 RESUME 133
|
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| isbn | 3826570588 |
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| spelling | Wilhelm, Frank K. Verfasser aut Ladungstransport in supraleitenden Nanostrukturen Frank K. Wilhelm Als Ms. gedr. Aachen Shaker 2000 XII, 145 S. Ill., graph. Darst. : 21 cm txt rdacontent n rdamedia nc rdacarrier Berichte aus der Physik Zugl.: Karlsruhe, Univ., Diss., 1999 Mesoskopisches System (DE-588)4280799-2 gnd rswk-swf Elektrischer Leiter (DE-588)4151734-9 gnd rswk-swf Proximity-Effekt (DE-588)4176049-9 gnd rswk-swf Supraleiter (DE-588)4184140-2 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Supraleiter (DE-588)4184140-2 s Elektrischer Leiter (DE-588)4151734-9 s Mesoskopisches System (DE-588)4280799-2 s Proximity-Effekt (DE-588)4176049-9 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=008900121&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Wilhelm, Frank K. Ladungstransport in supraleitenden Nanostrukturen Mesoskopisches System (DE-588)4280799-2 gnd Elektrischer Leiter (DE-588)4151734-9 gnd Proximity-Effekt (DE-588)4176049-9 gnd Supraleiter (DE-588)4184140-2 gnd |
| subject_GND | (DE-588)4280799-2 (DE-588)4151734-9 (DE-588)4176049-9 (DE-588)4184140-2 (DE-588)4113937-9 |
| title | Ladungstransport in supraleitenden Nanostrukturen |
| title_auth | Ladungstransport in supraleitenden Nanostrukturen |
| title_exact_search | Ladungstransport in supraleitenden Nanostrukturen |
| title_full | Ladungstransport in supraleitenden Nanostrukturen Frank K. Wilhelm |
| title_fullStr | Ladungstransport in supraleitenden Nanostrukturen Frank K. Wilhelm |
| title_full_unstemmed | Ladungstransport in supraleitenden Nanostrukturen Frank K. Wilhelm |
| title_short | Ladungstransport in supraleitenden Nanostrukturen |
| title_sort | ladungstransport in supraleitenden nanostrukturen |
| topic | Mesoskopisches System (DE-588)4280799-2 gnd Elektrischer Leiter (DE-588)4151734-9 gnd Proximity-Effekt (DE-588)4176049-9 gnd Supraleiter (DE-588)4184140-2 gnd |
| topic_facet | Mesoskopisches System Elektrischer Leiter Proximity-Effekt Supraleiter Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=008900121&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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