Magnetic properties of high-temperature superconductors:
"This book describes the magnetic properties of high-temperature (high-Tc) superconductors, including properties of the irreversibility lines, of flux pinning and flux creep. These magnetic properties are considerably different from what can be found in previous textbooks. Here, the various typ...
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Oxford
Alpha Science International
2009
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Zusammenfassung: | "This book describes the magnetic properties of high-temperature (high-Tc) superconductors, including properties of the irreversibility lines, of flux pinning and flux creep. These magnetic properties are considerably different from what can be found in previous textbooks. Here, the various types of high-Tc superconductors and their magnetic behavior are described and, using magnetic imaging methods, also directly visualized. By means of recent results concerning flux pinning in various high-Tc superconductors, a pinning phase diagram is developed. Several features encountered in magnetisation hysteresis loops of high-Tc superconductors like the central peak and the secondary or fishtail peak are discussed in detail."--Back cover. |
| Beschreibung: | XI, 274 S. Ill., graph. Darst. |
| ISBN: | 1842651498 9781842651490 |
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| 100 | 1 | |a Koblischka, Michael R. |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Magnetic properties of high-temperature superconductors |c Michael R. Koblischka |
| 264 | 1 | |a Oxford |b Alpha Science International |c 2009 | |
| 300 | |a XI, 274 S. |b Ill., graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 520 | 3 | |a "This book describes the magnetic properties of high-temperature (high-Tc) superconductors, including properties of the irreversibility lines, of flux pinning and flux creep. These magnetic properties are considerably different from what can be found in previous textbooks. Here, the various types of high-Tc superconductors and their magnetic behavior are described and, using magnetic imaging methods, also directly visualized. By means of recent results concerning flux pinning in various high-Tc superconductors, a pinning phase diagram is developed. Several features encountered in magnetisation hysteresis loops of high-Tc superconductors like the central peak and the secondary or fishtail peak are discussed in detail."--Back cover. | |
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Datensatz im Suchindex
| _version_ | 1804135086840348672 |
|---|---|
| adam_text | Contents
Preface
v
1
Introduction
............................................... 1
1.1 High-Tc Superconductors................................. 1
1.2
Magnetic
Properties of High-Tc Superconductors
............ 4
2
Magnetisation Measurements
.............................. 11
2.1
Magnetisation Hysteresis Loops (MHLs) of Type-II
Superconductors
........................................ 12
2.1.1
Homogeneous Samples
............................. 12
2.1.2
Polycrystalline Samples
............................ 18
2.2
Critical-State Models
.................................... 23
2.2.1
Longitudinal Geometry and the Bean Model
.......... 23
2.2.2
Perpendicular Geometry
........................... 39
3
Measurement Techniques
.................................. 49
3.1
Integral Measurement Techniques
.......................... 49
3.1.1
Magnetisation Measurements
....................... 49
3.1.2
AC-Susceptibility Measurements
.................... 55
3.1.3
Magneto-Transport Measurements
................... 59
3.1.4
Comparison of Determinations of the Critical
Temperature
...................................... 65
3.2
Local Measurement Techniques
............................ 66
3.2.1
The Bitter Decoration Technique
.................... 66
3.2.2
Micro Hall Probes and Hall-Probe Arrays
............ 67
3.2.3
Scanning Hall-Probe Technique
..................... 68
3.2.4
Low-Temperature
SEM ............................ 73
3.2.5
Electron Microscopy
-
Lorentz
Microscopy
............ 74
3.2.6
Scanning Tunnelling Microscopy (STM)
.............. 75
3.2.7
Magnetic-Force Microscopy (MFM)
.................. 78
3.2.8
Scanning SQUID Technique
........................ 81
3.2.9
Magneto-Optic Flux Visualisation
................... 82
χ
Contents
4
Flux
Penetration
Processes
................................ 95
4.1
Flux Penetration into Superconducting Samples
............. 95
4.1.1
Various Sample Geometries
......................... 95
4.1.2
Current-Induced Flux Patterns
...................... 98
4.1.3
Magnetisation Loop of a YBCO Thin-Film
...........100
4.1.4
Flux Patterns after Field Cooling
....................104
4.1.5
Current-Flow Reconstruction
.......................108
4.2
Flux Patterns Around Defects and Special MO Experiments
.. 113
4.2.1
Flux-Creep Experiments
...........................113
4.2.2
Visualisation of the Meissner Currents
...............113
4.2.3
Flux Patterns of a Superconducting Bend
............116
4.2.4
Analysis of Flux Patterns in the Presence of Defects
... 117
4.2.5
Study of Grain Boundaries
.........................122
4.2.6
Determination of Electric Fields Associated with
Magnetic-Flux Movements
..........................124
4.2.7
Effects of Granularity on the Flux Patterns
...........126
4.2.8
Multifilamentary Bi-2223 Tapes
.....................135
4.2.9
Large Thin-Film Samples
...........................140
4.2.10
Current Flow in Samples with a Variation of the
Current Density
...................................143
4.2.11
Model Sample to Simulate Properties of Bi-2223 Tapes
. 145
4.2.12
Thick Superconducting Films and Coated Conductors
.. 148
5
Flux Pinning and Creep
...................................151
5.1
Flux Creep
.............................................152
5.1.1
Conventional and Dynamic Relaxations
..............153
5.1.2
Collective Pinning
.................................163
5.1.3
Quantum Creep
...................................165
5.2
Pinning Sites in High-Tc Superconductors
..................167
5.2.1
Zoo of Potential Pinning Sites
....................167
5.2.2
Normal-Conducting or Insulating Particles within the
Superconducting Matrix
............................169
5.3
Scaling Analysis of Pinning Forces
.........................172
5.4
Scaling Analysis
.........................................176
5.4.1
The Dominating Pinning Mechanism in Nd-Based
123
Superconductors
..................................179
6
Magnetisation Loops and Peaks
...........................183
6.1
The Central Peak of a Magnetisation Curves
................184
6.2
Theoretical Analysis of the Central-Peak Position
............194
6.3
Influence of Granularity and Defects
.......................198
6.4
Fishtail Peak
...........................................
I99
6.5
Intermediate Peak and Twin-Plane Pinning
.................201
Contents xi
7
Flux Pinning in HTSC Compounds
........................203
7.1
Pinning Analysis of Various High-Tc Superconductors
........203
7.1.1
YBCO
...........................................203
7.1.2
Light-Rare-Earth-Based
123
Superconductors
.........204
7.1.3
В^гЅггСаСигОѕ+гапа
(Pb,Bi)2Sr2Ca2Cu3Oio+¿.......
205
7.1.4
Peak Effect and Secondary Transitions
...............208
7.2
The Pinning Diagram
....................................216
7.3
What Does Pin?
........................................218
8
Details of the Flux-Penetration Process
....................221
8.1
Magneto-Optic and Magnetic Observations of Turbulence
.....221
8.2
Theoretical Description
..................................231
8.3
Instability of the Critical State
............................237
8.4
Avalanches and Self-Organized Criticality
..................239
References
.......................................................245
Index
...........................................................271
|
| adam_txt |
Contents
Preface
v
1
Introduction
. 1
1.1 High-Tc Superconductors. 1
1.2
Magnetic
Properties of High-Tc Superconductors
. 4
2
Magnetisation Measurements
. 11
2.1
Magnetisation Hysteresis Loops (MHLs) of Type-II
Superconductors
. 12
2.1.1
Homogeneous Samples
. 12
2.1.2
Polycrystalline Samples
. 18
2.2
Critical-State Models
. 23
2.2.1
Longitudinal Geometry and the Bean Model
. 23
2.2.2
Perpendicular Geometry
. 39
3
Measurement Techniques
. 49
3.1
Integral Measurement Techniques
. 49
3.1.1
Magnetisation Measurements
. 49
3.1.2
AC-Susceptibility Measurements
. 55
3.1.3
Magneto-Transport Measurements
. 59
3.1.4
Comparison of Determinations of the Critical
Temperature
. 65
3.2
Local Measurement Techniques
. 66
3.2.1
The Bitter Decoration Technique
. 66
3.2.2
Micro Hall Probes and Hall-Probe Arrays
. 67
3.2.3
Scanning Hall-Probe Technique
. 68
3.2.4
Low-Temperature
SEM . 73
3.2.5
Electron Microscopy
-
Lorentz
Microscopy
. 74
3.2.6
Scanning Tunnelling Microscopy (STM)
. 75
3.2.7
Magnetic-Force Microscopy (MFM)
. 78
3.2.8
Scanning SQUID Technique
. 81
3.2.9
Magneto-Optic Flux Visualisation
. 82
χ
Contents
4
Flux
Penetration
Processes
. 95
4.1
Flux Penetration into Superconducting Samples
. 95
4.1.1
Various Sample Geometries
. 95
4.1.2
Current-Induced Flux Patterns
. 98
4.1.3
Magnetisation Loop of a YBCO Thin-Film
.100
4.1.4
Flux Patterns after Field Cooling
.104
4.1.5
Current-Flow Reconstruction
.108
4.2
Flux Patterns Around Defects and Special MO Experiments
. 113
4.2.1
Flux-Creep Experiments
.113
4.2.2
Visualisation of the Meissner Currents
.113
4.2.3
Flux Patterns of a Superconducting Bend
.116
4.2.4
Analysis of Flux Patterns in the Presence of Defects
. 117
4.2.5
Study of Grain Boundaries
.122
4.2.6
Determination of Electric Fields Associated with
Magnetic-Flux Movements
.124
4.2.7
Effects of Granularity on the Flux Patterns
.126
4.2.8
Multifilamentary Bi-2223 Tapes
.135
4.2.9
Large Thin-Film Samples
.140
4.2.10
Current Flow in Samples with a Variation of the
Current Density
.143
4.2.11
Model Sample to Simulate Properties of Bi-2223 Tapes
. 145
4.2.12
Thick Superconducting Films and Coated Conductors
. 148
5
Flux Pinning and Creep
.151
5.1
Flux Creep
.152
5.1.1
Conventional and Dynamic Relaxations
.153
5.1.2
Collective Pinning
.163
5.1.3
Quantum Creep
.165
5.2
Pinning Sites in High-Tc Superconductors
.167
5.2.1
"Zoo" of Potential Pinning Sites
.167
5.2.2
Normal-Conducting or Insulating Particles within the
Superconducting Matrix
.169
5.3
Scaling Analysis of Pinning Forces
.172
5.4
Scaling Analysis
.176
5.4.1
The Dominating Pinning Mechanism in Nd-Based
123
Superconductors
.179
6
Magnetisation Loops and Peaks
.183
6.1
The Central Peak of a Magnetisation Curves
.184
6.2
Theoretical Analysis of the Central-Peak Position
.194
6.3
Influence of Granularity and Defects
.198
6.4
Fishtail Peak
.
I99
6.5
Intermediate Peak and Twin-Plane Pinning
.201
Contents xi
7
Flux Pinning in HTSC Compounds
.203
7.1
Pinning Analysis of Various High-Tc Superconductors
.203
7.1.1
YBCO
.203
7.1.2
Light-Rare-Earth-Based
123
Superconductors
.204
7.1.3
В^гЅггСаСигОѕ+гапа
(Pb,Bi)2Sr2Ca2Cu3Oio+¿.
205
7.1.4
Peak Effect and Secondary Transitions
.208
7.2
The Pinning Diagram
.216
7.3
What Does Pin?
.218
8
Details of the Flux-Penetration Process
.221
8.1
Magneto-Optic and Magnetic Observations of Turbulence
.221
8.2
Theoretical Description
.231
8.3
Instability of the Critical State
.237
8.4
Avalanches and Self-Organized Criticality
.239
References
.245
Index
.271 |
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| id | DE-604.BV021293317 |
| illustrated | Illustrated |
| index_date | 2024-07-02T13:50:31Z |
| indexdate | 2024-07-09T20:34:55Z |
| institution | BVB |
| isbn | 1842651498 9781842651490 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-014614131 |
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| physical | XI, 274 S. Ill., graph. Darst. |
| publishDate | 2009 |
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| publisher | Alpha Science International |
| record_format | marc |
| spelling | Koblischka, Michael R. Verfasser aut Magnetic properties of high-temperature superconductors Michael R. Koblischka Oxford Alpha Science International 2009 XI, 274 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier "This book describes the magnetic properties of high-temperature (high-Tc) superconductors, including properties of the irreversibility lines, of flux pinning and flux creep. These magnetic properties are considerably different from what can be found in previous textbooks. Here, the various types of high-Tc superconductors and their magnetic behavior are described and, using magnetic imaging methods, also directly visualized. By means of recent results concerning flux pinning in various high-Tc superconductors, a pinning phase diagram is developed. Several features encountered in magnetisation hysteresis loops of high-Tc superconductors like the central peak and the secondary or fishtail peak are discussed in detail."--Back cover. High temperature superconductors Magnetic properties Hochtemperatursupraleiter (DE-588)4220922-5 gnd rswk-swf Magnetische Eigenschaft (DE-588)4129002-1 gnd rswk-swf Hochtemperatursupraleiter (DE-588)4220922-5 s Magnetische Eigenschaft (DE-588)4129002-1 s DE-604 Digitalisierung UB Bayreuth application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=014614131&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Koblischka, Michael R. Magnetic properties of high-temperature superconductors High temperature superconductors Magnetic properties Hochtemperatursupraleiter (DE-588)4220922-5 gnd Magnetische Eigenschaft (DE-588)4129002-1 gnd |
| subject_GND | (DE-588)4220922-5 (DE-588)4129002-1 |
| title | Magnetic properties of high-temperature superconductors |
| title_auth | Magnetic properties of high-temperature superconductors |
| title_exact_search | Magnetic properties of high-temperature superconductors |
| title_exact_search_txtP | Magnetic properties of high-temperature superconductors |
| title_full | Magnetic properties of high-temperature superconductors Michael R. Koblischka |
| title_fullStr | Magnetic properties of high-temperature superconductors Michael R. Koblischka |
| title_full_unstemmed | Magnetic properties of high-temperature superconductors Michael R. Koblischka |
| title_short | Magnetic properties of high-temperature superconductors |
| title_sort | magnetic properties of high temperature superconductors |
| topic | High temperature superconductors Magnetic properties Hochtemperatursupraleiter (DE-588)4220922-5 gnd Magnetische Eigenschaft (DE-588)4129002-1 gnd |
| topic_facet | High temperature superconductors Magnetic properties Hochtemperatursupraleiter Magnetische Eigenschaft |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=014614131&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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