Niobium near surface composition relevant for superconducting radio-frequency cavities:
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1. Verfasser: | |
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Format: | Abschlussarbeit Buch |
Sprache: | English |
Veröffentlicht: |
Hamburg
Deutsches Elektronen-Synchrotron
2020
|
Schriftenreihe: | DESY thesis
2020-013 |
Schlagworte: | |
Online-Zugang: | Inhaltsverzeichnis Inhaltsverzeichnis |
Beschreibung: | 166 Seiten Illustrationen, Diagramme 30 cm |
Internformat
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245 | 1 | 0 | |a Niobium near surface composition relevant for superconducting radio-frequency cavities |c by G. Dalla Lana Semione |
264 | 1 | |a Hamburg |b Deutsches Elektronen-Synchrotron |c 2020 | |
300 | |a 166 Seiten |b Illustrationen, Diagramme |c 30 cm | ||
336 | |b txt |2 rdacontent | ||
337 | |b n |2 rdamedia | ||
338 | |b nc |2 rdacarrier | ||
490 | 1 | |a DESY thesis |v 2020-013 | |
502 | |b Dissertation |c Universität Hamburg |d 2020 | ||
650 | 0 | 7 | |a Hochfrequenzresonator |0 (DE-588)4160145-2 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Oberfläche |0 (DE-588)4042907-6 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Niob |0 (DE-588)4042362-1 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Supraleitung |0 (DE-588)4058651-0 |2 gnd |9 rswk-swf |
655 | 7 | |0 (DE-588)4113937-9 |a Hochschulschrift |2 gnd-content | |
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689 | 0 | 1 | |a Oberfläche |0 (DE-588)4042907-6 |D s |
689 | 0 | 2 | |a Supraleitung |0 (DE-588)4058651-0 |D s |
689 | 0 | 3 | |a Hochfrequenzresonator |0 (DE-588)4160145-2 |D s |
689 | 0 | |5 DE-604 | |
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Datensatz im Suchindex
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adam_text | CONTENTS
1.
INTRODUCTION
1
2.
NIOBIUM
SUPERCONDUCTING
RADIO-FREQUENCY
CAVITIES
AND
NIOBIUM
COMPOUNDS
5
2.1.
BASICS
OF
SUPERCONDUCTIVITY
AND
SUPERCONDUCTING
NIOBIUM
CAVITIES
............
5
2.2.
NIOBIUM
...............................................................................................................
10
2.3.
NIOBIUM-OXYGEN
SYSTEM
...................................................................................
11
2.4.
NIOBIUM-NITROGEN
SYSTEM
...................................................................................
15
2.5.
NIOBIUM-HYDROGEN
SYSTEM
................................................................................
18
3.
SURFACE
SENSITIVE
CHARACTERIZATION
METHODS
21
3.1.
BASICS
OF
X-RAY
DIFFRACTION
................................................................................
21
3.1.1.
DIFFRACTION
FROM
A
BULK
CRYSTAL
..............................................................
23
3.2.
DIFFUSE
X-RAY
SCATTERING
...................................................................................
25
3.2.1.
INTERSTITIAL
OXYGEN
AND
NITROGEN
INDUCED
DIFFUSE
SCATTERING
IN
NIOBIUM
26
3.2.2.
THERMAL
DIFFUSE
SCATTERING
....................................................................
27
3.3.
X-RAYS
AT
SURFACES
AND
INTERFACES
.......................................................................
28
3.3.1.
X-RAY
REFLECTIVITY
...................................................................................
30
3.3.2.
GRAZING
INCIDENCE
X-RAY
DIFFRACTION
....................................................
32
3.3.3.
HIGH
ENERGY
GRAZING-INCIDENCE
X-RAY
DIFFRACTION
...................................
35
3.4.
X-RAY
PHOTOELECTRON
SPECTROSCOPY
....................................................................
36
3.5.
COMPLEMENTARY
MICROSCOPY
TECHNIQUES
..........................................................
37
4.
EXPERIMENTAL
SETUPS
41
4.1.
IN-SITU
UHV
MOBILE
CHAMBER
...........................................................................
41
4.2.
DESY
NANOLABORATORY
......................................................................................
41
4.2.1.
X-RAY
LABORATORY
...................................................................................
41
4.2.2.
UHV
LABORATORY
......................................................................................
43
4.2.3.
MICROSCOPY
LABORATORY
..........................................................................
43
4.3.
SURFACE
DIFFRACTION
BEAMLINE
ID03
AT
THE
ESRF
..............................................
43
4.4.
HIGH
ENERGY
BEAMLINE
FOR
BURIED
INTERFACE
STRUCTURE
AND
MATERIALS
PROCESS
ING
ID31
AT
THE
ESRF
......................................................................................
44
5.
RESULTS
AND
DISCUSSION
47
5.1.
NITROGEN
DOPING
OF
LARGE-GRAIN
NIOBIUM
..........................................................
47
5.1.1.
SAMPLE
PREPARATION
................................................................................
49
5.1.2.
EPITAXIAL
NBO
AND
/?-NB
2
N
ON
LARGE-GRAIN
NIOBIUM
.............................
49
5.1.3.
NITROGEN
DOPING
EFFECT
ON
THE
NEAR-SURFACE
CHEMICAL
COMPOSITION
OF
LARGE-GRAIN
NIOBIUM
................................................................................
53
5.1.4.
TOPOGRAPHY
AND
CROSS-SECTION
IMAGING
OF
THE
SURFACES
......................
55
5.1.5.
PARTIAL
SUMMARY
AND
DISCUSSION
..............................................................
57
5.2.
NITROGEN
INFUSION
ON
SINGLE-CRYSTALLINE
NB(100)
..............................................
63
5.2.1.
SAMPLE
PREPARATION
..................................................................................
65
5.2.2.
NEAR-SURFACE
REGION
OF
NIOBIUM
UNDER
NITROGEN
INFUSION
AND
RELATED
THERMAL
TREATMENTS
.................................................................
65
5.2.3.
PARTIAL
SUMMARY
AND
DISCUSSION
..............................................................
68
5.3.
NEAR-SURFACE
REGION
OF
NB(100)
UPON
THERMAL
TREATMENTS
IN
UHV
AND
N
2
ATMOSPHERES
...........................................................................................................
72
5.3.1.
SAMPLE
PREPARATION
...................................................................................
73
5.3.2.
NATURAL
OXIDE
LAYERS
EVOLUTION
UNDER
STEP-WISE
ANNEALING
...................
73
5.3.3.
DEPTH-RESOLVED
INTERSTITIAL
CONCENTRATION
PROFILE
DETERMINATION
WITH
HEGIXRD
..................................................................................................
75
5.3.4.
CHEMICAL
COMPOSITION
AFTER
AIR-EXPOSURE
...............................................
84
5.3.5.
PARTIAL
SUMMARY
AND
DISCUSSION
..............................................................
85
5.4.
NEAR-SURFACE
REGION
OF
NB(100)
UPON
HYDROGEN
ANNEALING
AND
ITS
BEHAVIOR
AT
CRYOGENIC
TEMPERATURES
...................................................................................
90
5.4.1.
SAMPLE
PREPARATION
..................................................................................
92
5.4.2.
HYDROGEN
LOADING
......................................................................................
92
5.4.3.
EFFECT
OF
LOW
TEMPERATURES
ON
THE
NATURAL
OXIDES
STUDIED
BY
IN-SITU
X-RAY
REFLECTIVITY
...................................................................................
94
5.4.4.
DEPTH-RESOLVED
INTERSTITIAL
CONCENTRATION
PROFILE
DETERMINATION
WITH
GIXRD
...................................................................................................
96
5.4.5.
EVIDENCE
OF
NIOBIUM
HYDRIDES
UNDER
LIQUID
NITROGEN
TEMPERATURES
.
104
5.4.6.
PARTIAL
SUMMARY
AND
DISCUSSION
...........................................................
108
6.
SUMMARY
AND
CONCLUSION
115
APPENDICES
119
A.
XPS
FIT
PARAMETERS
121
A.
L.
NITROGEN
DOPING
................................................................................................
121
A.
2.
SEQUENTIAL
ANNEALING
OF
NB(100)
IN
UHV
AND
N
2
ATMOSPHERES
...................
124
B.
XRR
FIT
PARAMETERS
127
B.
L.
ANNEALING
AT
800
C
IN
UHV
................................................................................
127
B.2.
NITROGEN
INFUSION
................................................................................................
127
B.3.
SEQUENTIAL
ANNEALING
OF
NB(100)
IN
UHV
AND
N2
ATMOSPHERES
.....................
128
B.4.
HYDROGEN
LOADING
ON
NB(100)
............................................................................
130
B.
5.
EFFECT
OF
LOW
TEMPERATURES
ON
NB(100)
.............................................................
132
C.
X-RAY
DIFFUSE
SCATTERING
FIT
PARAMETERS
133
C.
L.
SEQUENTIAL
ANNEALING
OF
NB(100)
IN
UHV
AND
N2
ATMOSPHERES
.....................
133
0.2.
EFFECT
OF
LOW
TEMPERATURES
ON
NB(LOO)
.............................................................
133
D.
HIGH-ENERGY
X-RAY
DIFFUSE
SCATTERING:
DETECTOR
IMAGES
135
LIST
OF
ACRONYMS
140
|
adam_txt |
CONTENTS
1.
INTRODUCTION
1
2.
NIOBIUM
SUPERCONDUCTING
RADIO-FREQUENCY
CAVITIES
AND
NIOBIUM
COMPOUNDS
5
2.1.
BASICS
OF
SUPERCONDUCTIVITY
AND
SUPERCONDUCTING
NIOBIUM
CAVITIES
.
5
2.2.
NIOBIUM
.
10
2.3.
NIOBIUM-OXYGEN
SYSTEM
.
11
2.4.
NIOBIUM-NITROGEN
SYSTEM
.
15
2.5.
NIOBIUM-HYDROGEN
SYSTEM
.
18
3.
SURFACE
SENSITIVE
CHARACTERIZATION
METHODS
21
3.1.
BASICS
OF
X-RAY
DIFFRACTION
.
21
3.1.1.
DIFFRACTION
FROM
A
BULK
CRYSTAL
.
23
3.2.
DIFFUSE
X-RAY
SCATTERING
.
25
3.2.1.
INTERSTITIAL
OXYGEN
AND
NITROGEN
INDUCED
DIFFUSE
SCATTERING
IN
NIOBIUM
26
3.2.2.
THERMAL
DIFFUSE
SCATTERING
.
27
3.3.
X-RAYS
AT
SURFACES
AND
INTERFACES
.
28
3.3.1.
X-RAY
REFLECTIVITY
.
30
3.3.2.
GRAZING
INCIDENCE
X-RAY
DIFFRACTION
.
32
3.3.3.
HIGH
ENERGY
GRAZING-INCIDENCE
X-RAY
DIFFRACTION
.
35
3.4.
X-RAY
PHOTOELECTRON
SPECTROSCOPY
.
36
3.5.
COMPLEMENTARY
MICROSCOPY
TECHNIQUES
.
37
4.
EXPERIMENTAL
SETUPS
41
4.1.
IN-SITU
UHV
MOBILE
CHAMBER
.
41
4.2.
DESY
NANOLABORATORY
.
41
4.2.1.
X-RAY
LABORATORY
.
41
4.2.2.
UHV
LABORATORY
.
43
4.2.3.
MICROSCOPY
LABORATORY
.
43
4.3.
SURFACE
DIFFRACTION
BEAMLINE
ID03
AT
THE
ESRF
.
43
4.4.
HIGH
ENERGY
BEAMLINE
FOR
BURIED
INTERFACE
STRUCTURE
AND
MATERIALS
PROCESS
ING
ID31
AT
THE
ESRF
.
44
5.
RESULTS
AND
DISCUSSION
47
5.1.
NITROGEN
DOPING
OF
LARGE-GRAIN
NIOBIUM
.
47
5.1.1.
SAMPLE
PREPARATION
.
49
5.1.2.
EPITAXIAL
NBO
AND
/?-NB
2
N
ON
LARGE-GRAIN
NIOBIUM
.
49
5.1.3.
NITROGEN
DOPING
EFFECT
ON
THE
NEAR-SURFACE
CHEMICAL
COMPOSITION
OF
LARGE-GRAIN
NIOBIUM
.
53
5.1.4.
TOPOGRAPHY
AND
CROSS-SECTION
IMAGING
OF
THE
SURFACES
.
55
5.1.5.
PARTIAL
SUMMARY
AND
DISCUSSION
.
57
5.2.
NITROGEN
INFUSION
ON
SINGLE-CRYSTALLINE
NB(100)
.
63
5.2.1.
SAMPLE
PREPARATION
.
65
5.2.2.
NEAR-SURFACE
REGION
OF
NIOBIUM
UNDER
NITROGEN
INFUSION
AND
RELATED
THERMAL
TREATMENTS
.
65
5.2.3.
PARTIAL
SUMMARY
AND
DISCUSSION
.
68
5.3.
NEAR-SURFACE
REGION
OF
NB(100)
UPON
THERMAL
TREATMENTS
IN
UHV
AND
N
2
ATMOSPHERES
.
72
5.3.1.
SAMPLE
PREPARATION
.
73
5.3.2.
NATURAL
OXIDE
LAYERS
EVOLUTION
UNDER
STEP-WISE
ANNEALING
.
73
5.3.3.
DEPTH-RESOLVED
INTERSTITIAL
CONCENTRATION
PROFILE
DETERMINATION
WITH
HEGIXRD
.
75
5.3.4.
CHEMICAL
COMPOSITION
AFTER
AIR-EXPOSURE
.
84
5.3.5.
PARTIAL
SUMMARY
AND
DISCUSSION
.
85
5.4.
NEAR-SURFACE
REGION
OF
NB(100)
UPON
HYDROGEN
ANNEALING
AND
ITS
BEHAVIOR
AT
CRYOGENIC
TEMPERATURES
.
90
5.4.1.
SAMPLE
PREPARATION
.
92
5.4.2.
HYDROGEN
LOADING
.
92
5.4.3.
EFFECT
OF
LOW
TEMPERATURES
ON
THE
NATURAL
OXIDES
STUDIED
BY
IN-SITU
X-RAY
REFLECTIVITY
.
94
5.4.4.
DEPTH-RESOLVED
INTERSTITIAL
CONCENTRATION
PROFILE
DETERMINATION
WITH
GIXRD
.
96
5.4.5.
EVIDENCE
OF
NIOBIUM
HYDRIDES
UNDER
LIQUID
NITROGEN
TEMPERATURES
.
104
5.4.6.
PARTIAL
SUMMARY
AND
DISCUSSION
.
108
6.
SUMMARY
AND
CONCLUSION
115
APPENDICES
119
A.
XPS
FIT
PARAMETERS
121
A.
L.
NITROGEN
DOPING
.
121
A.
2.
SEQUENTIAL
ANNEALING
OF
NB(100)
IN
UHV
AND
N
2
ATMOSPHERES
.
124
B.
XRR
FIT
PARAMETERS
127
B.
L.
ANNEALING
AT
800
C
IN
UHV
.
127
B.2.
NITROGEN
INFUSION
.
127
B.3.
SEQUENTIAL
ANNEALING
OF
NB(100)
IN
UHV
AND
N2
ATMOSPHERES
.
128
B.4.
HYDROGEN
LOADING
ON
NB(100)
.
130
B.
5.
EFFECT
OF
LOW
TEMPERATURES
ON
NB(100)
.
132
C.
X-RAY
DIFFUSE
SCATTERING
FIT
PARAMETERS
133
C.
L.
SEQUENTIAL
ANNEALING
OF
NB(100)
IN
UHV
AND
N2
ATMOSPHERES
.
133
0.2.
EFFECT
OF
LOW
TEMPERATURES
ON
NB(LOO)
.
133
D.
HIGH-ENERGY
X-RAY
DIFFUSE
SCATTERING:
DETECTOR
IMAGES
135
LIST
OF
ACRONYMS
140 |
any_adam_object | 1 |
any_adam_object_boolean | 1 |
author | Dalla Lana Semione, Guilherme |
author_GND | (DE-588)1213763983 |
author_facet | Dalla Lana Semione, Guilherme |
author_role | aut |
author_sort | Dalla Lana Semione, Guilherme |
author_variant | l s g d lsg lsgd |
building | Verbundindex |
bvnumber | BV047165949 |
ctrlnum | (OCoLC)1195967042 (DE-599)DNB1213486254 |
discipline | Physik |
discipline_str_mv | Physik |
format | Thesis Book |
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genre | (DE-588)4113937-9 Hochschulschrift gnd-content |
genre_facet | Hochschulschrift |
id | DE-604.BV047165949 |
illustrated | Illustrated |
index_date | 2024-07-03T16:41:19Z |
indexdate | 2024-07-10T09:04:28Z |
institution | BVB |
language | English |
oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-032571531 |
oclc_num | 1195967042 |
open_access_boolean | |
owner | DE-29T |
owner_facet | DE-29T |
physical | 166 Seiten Illustrationen, Diagramme 30 cm |
publishDate | 2020 |
publishDateSearch | 2020 |
publishDateSort | 2020 |
publisher | Deutsches Elektronen-Synchrotron |
record_format | marc |
series | DESY thesis |
series2 | DESY thesis |
spelling | Dalla Lana Semione, Guilherme Verfasser (DE-588)1213763983 aut Niobium near surface composition relevant for superconducting radio-frequency cavities by G. Dalla Lana Semione Hamburg Deutsches Elektronen-Synchrotron 2020 166 Seiten Illustrationen, Diagramme 30 cm txt rdacontent n rdamedia nc rdacarrier DESY thesis 2020-013 Dissertation Universität Hamburg 2020 Hochfrequenzresonator (DE-588)4160145-2 gnd rswk-swf Oberfläche (DE-588)4042907-6 gnd rswk-swf Niob (DE-588)4042362-1 gnd rswk-swf Supraleitung (DE-588)4058651-0 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Niob (DE-588)4042362-1 s Oberfläche (DE-588)4042907-6 s Supraleitung (DE-588)4058651-0 s Hochfrequenzresonator (DE-588)4160145-2 s DE-604 DESY thesis 2020-013 (DE-604)BV012274990 2020,13 B:DE-101 application/pdf https://d-nb.info/1213486254/04 Inhaltsverzeichnis DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=032571531&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
spellingShingle | Dalla Lana Semione, Guilherme Niobium near surface composition relevant for superconducting radio-frequency cavities DESY thesis Hochfrequenzresonator (DE-588)4160145-2 gnd Oberfläche (DE-588)4042907-6 gnd Niob (DE-588)4042362-1 gnd Supraleitung (DE-588)4058651-0 gnd |
subject_GND | (DE-588)4160145-2 (DE-588)4042907-6 (DE-588)4042362-1 (DE-588)4058651-0 (DE-588)4113937-9 |
title | Niobium near surface composition relevant for superconducting radio-frequency cavities |
title_auth | Niobium near surface composition relevant for superconducting radio-frequency cavities |
title_exact_search | Niobium near surface composition relevant for superconducting radio-frequency cavities |
title_exact_search_txtP | Niobium near surface composition relevant for superconducting radio-frequency cavities |
title_full | Niobium near surface composition relevant for superconducting radio-frequency cavities by G. Dalla Lana Semione |
title_fullStr | Niobium near surface composition relevant for superconducting radio-frequency cavities by G. Dalla Lana Semione |
title_full_unstemmed | Niobium near surface composition relevant for superconducting radio-frequency cavities by G. Dalla Lana Semione |
title_short | Niobium near surface composition relevant for superconducting radio-frequency cavities |
title_sort | niobium near surface composition relevant for superconducting radio frequency cavities |
topic | Hochfrequenzresonator (DE-588)4160145-2 gnd Oberfläche (DE-588)4042907-6 gnd Niob (DE-588)4042362-1 gnd Supraleitung (DE-588)4058651-0 gnd |
topic_facet | Hochfrequenzresonator Oberfläche Niob Supraleitung Hochschulschrift |
url | https://d-nb.info/1213486254/04 http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=032571531&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
volume_link | (DE-604)BV012274990 |
work_keys_str_mv | AT dallalanasemioneguilherme niobiumnearsurfacecompositionrelevantforsuperconductingradiofrequencycavities |
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