The spin structure of magnetic nanoparticles and in magnetic nanostructures:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | German |
| Veröffentlicht: |
Jülich
Forschungszentrum Jülich, Zentralbibliothek
2011
|
| Schriftenreihe: | Schriften des Forschungszentrums Jülich
Reihe Schlüsseltechnologien ; 21 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | V, 342 S. Ill., graph. Darst. 240 mm x 170 mm |
| ISBN: | 9783893367047 |
Internformat
MARC
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| 020 | |a 9783893367047 |c Pb. : EUR 70.00 (DE) |9 978-3-89336-704-7 | ||
| 024 | 3 | |a 9783893367047 | |
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| 100 | 1 | |a Disch, Sabrina |d 1981- |e Verfasser |0 (DE-588)143267280 |4 aut | |
| 245 | 1 | 0 | |a The spin structure of magnetic nanoparticles and in magnetic nanostructures |c Sabrina Disch |
| 264 | 1 | |a Jülich |b Forschungszentrum Jülich, Zentralbibliothek |c 2011 | |
| 300 | |a V, 342 S. |b Ill., graph. Darst. |c 240 mm x 170 mm | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 490 | 1 | |a Schriften des Forschungszentrums Jülich : Reihe Schlüsseltechnologien |v 21 | |
| 502 | |a Zugl.: Aachen, Univ., Diss., 2010 | ||
| 655 | 7 | |0 (DE-588)4113937-9 |a Hochschulschrift |2 gnd-content | |
| 830 | 0 | |a Schriften des Forschungszentrums Jülich |v Reihe Schlüsseltechnologien ; 21 |w (DE-604)BV023237997 |9 21 | |
| 856 | 4 | 2 | |m DNB Datenaustausch |q application/pdf |u http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=022622488&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |3 Inhaltsverzeichnis |
| 999 | |a oai:aleph.bib-bvb.de:BVB01-022622488 | ||
Datensatz im Suchindex
| _version_ | 1804145779004145664 |
|---|---|
| adam_text | CONTENTS
1
INTRODUCTION
1
2
THEORETICAL
BACKGROUND
5
2.1
SUPERPARAMAGNETISM
..........................................................................................
6
2.2
SCATTERING
METHODS
APPLIED
TO
MAGNETIC
NANOPARTICLES
....................................
9
2.2.1
STRUCTURAL
CORRELATIONS
ON
THE
ATOMIC
SCALE
.............................................
10
2.2.1.1
BRAGG
SCATTERING
......................................................................
11
2.2.1.2
TOTAL
SCATTERING
AND
THE
PAIR
DISTRIBUTION
FUNCTION
....
14
2.2.1.3
X-RAY
ABSORPTION
TECHNIQUES
..................................................
17
2.2.2
NANOPARTICLE
MORPHOLOGY:
SMALL-ANGLE
SCATTERING
.............................
19
2.2.2.1
FORM
FACTORS
............................................................................
21
2.2.2.2
STRUCTURE
FACTORS
.......................................................................
23
2.2.2.3
SIZE
DISTRIBUTION
.......................................................................
24
2.2.2.4
INSTRUMENTAL
RESOLUTION
..........................................................
26
2.2.2.5
ASYMPTOTIC
BEHAVIOR
...............................................................
27
2.2.2.6
ANOMALOUS
SMALL-ANGLE
SCATTERING
........................................
28
2.2.3
NANOPARTICLE
ASSEMBLIES:
SCATTERING
UNDER
GRAZING
INCIDENCE
...
29
2.2.3.1
SPECULAR
REFLECTIVITY
..................................................................
30
2.2.3.2
OFF-SPECULAR
REFLECTIVITY
..........................................................
32
2.2.3.3
GRAZING
INCIDENCE
SMALL-ANGLE
SCATTERING
..............................
33
2.2.4
NANOPARTICLE
MAGNETIZATION:
POLARIZED
NEUTRON
SCATTERING
..........
35
2.2.4.1
SCATTERING
CROSS
SECTIONS
..........................................................
36
2.2.4.2
POLARIZATION
ANALYSIS
...............................................................
38
2.2.4.3
SANSPOL
.................................................................................
39
3
INSTRUMENTS
41
3.1
SMALL-ANGLE
SCATTERING
........................................................................................
42
3.1.1
B1-JUSIFA
..............................................................................................
42
3.1.2
SWING
...................................................................................................
43
3.1.3
ID01
........................................................................................................
44
3.1.4
KWS2
.....................................................................................................
45
3.1.5
D22
...........................................................................................................
45
3.2
REFLECTIVITY
...........................................................................................................
46
3.2.1
TREFF
.....................................................................................................
46
3.3
WIDE
ANGLE
SCATTERING
........................................................................................
47
3.3.1
6-ID-D
.....................................................................................................
47
3.4
ABSORPTION
SPECTROSCOPY
...................................................................................
48
3.4.1
SAMBA
...................................................................................................
48
3.5
POLARIZATION
ANALYSIS
........................................................................................
48
3.5.1
DNS
........................................................................................................
48
3.5.2
J-NSE
........................................................................................................
49
3.5.3
IN12
........................................................................................................
51
4
COBALT
NANOPARTICLES
53
4.1
NANOPARTICLE
SYNTHESIS
......................................................................................
54
4.2
METHODS
.............................................................................................................
59
4.2.1
SAMPLE
PREPARATION
.................................................................................
59
4.2.1.1
CO(AOT)
2
..................................................................................
59
4.2.1.2
COBALT
NANOPARTICLES
STANDARD
SYNTHESIS
ROUTE
.................
62
4.2.1.3
PARTICLE
EXTRACTION
.....................................................................
63
4.2.1.4
CONCENTRATION
VARIATION
...........................................................
64
4.2.1.5
TEMPERATURE
VARIATION
.............................................................
64
4.2.1.6
ADDITION
OF
NONIONIC
AND
ANIONIC
SURFACTANTS
.........................
65
4.2.1.7
MICROEMULSION
..........................................................................
68
4.2.1.8
VARIATION
OF
THE
REDUCING
AGENT
................................................
69
4.2.1.9
DECOMPOSITION
OF
DICOBALT
OCTACARBONYL
.................................
72
4.2.2
CHARACTERIZATION
AND
DATA
TREATMENT
....................................................
72
4.2.2.1
MAGNETIZATION
MEASUREMENTS
................................................
72
4.2.2.2
SAXS
..........................................................................................
74
4.2.2.3ASAXS
......................................................................................
76
4.2.2.4
SANS
..........................................................................................
76
4.2.2.5
XAS
...........................................................................................
77
4.2.2.6
UV-VIS
SPECTROSCOPY
................................................................
78
4.3
RESULTS
AND
DISCUSSION
......................................................................................
78
4.3.1
PREPARATION
AND
CHARACTERIZATION
OF
COBALT
NANOPARTICLES
.............
78
4.3.1.1
NANOPARTICLE
PREPARATION
.......................................................
78
4.3.1.2
MAGNETIZATION
MEASUREMENTS
...............................................
82
4.3.1.3
PARTIAL
AND
FULL
OXIDATION
.......................................................
85
4.3.1.4
SMALL-ANGLE
X-RAY
SCATTERING
..................................................
89
4.3.1.5
ANOMALOUS
SMALL-ANGLE
X-RAY
SCATTERING
................................
95
4.3.1.6
PARTICLE
EXTRACTION
....................................................................
96
4.3.1.7
SMALL-ANGLE
NEUTRON
SCATTERING
..............................................
100
4.3.1.8
SUMMARY:
RESULTS
OF
THE
PRIMARY
CHARACTERIZATION
....
104
4.3.2
POSSIBLE
ROUTES
TO
SIZE
VARIATION
........................................................
106
4.3.2.1
CONCENTRATION
VARIATION
........................................................
106
4.3.2.2
TEMPERATURE
VARIATION
...........................................................
107
4.3.2.3
ADDITION
OF
NONIONIC
AND
ANIONIC
SURFACTANTS
......................
111
4.3.2.4
MICROEMULSION
........................................................................
119
4.3.2.5
VARIATION
OF
THE
REDUCING
AGENT
..............................................
125
4.3.2.6
NANOPARTICLE
GROWTH
BY
DECOMPOSITION
OF
DICOBALT
OC
TACARBONYL
................................................................
134
4.4
SUMMARY
..........................................................................................................
136
5
IRON
OXIDE
NANOPARTICLES
139
5.1
MORPHOLOGICAL
AND
MAGNETIC
CHARACTERIZATION
............................................
140
5.1.1
INTRODUCTION
OF
THE
SAMPLES
..................................................................
140
5.1.2
METHODS
..................................................................................................
143
5.1.2.1
SAMPLE
PREPARATION
AND
DATA
TREATMENT
..............................
143
5.1.2.2
OLEICACID
...............................................................................
145
5.1.2.3
DEVELOPMENT
OF
THE
CUBIC
FORM
FACTORS
................................
148
5.1.3
RESULTS
AND
DISCUSSION
..........................................................................
152
5.1.3.1
SAXS:
SIZE
AND
SIZE
DISTRIBUTION
...........................................
152
5.1.3.2
SANS:
CORE
SHELL
STRUCTURE
.....................................................
156
5.1.3.3
MAGNETIZATION
MEASUREMENTS
.............................................
162
5.1.4
SUMMARY
...............................................................................................
165
5.2
LOCAL
STRUCTURE
................................................................................................
167
5.2.1
INTRODUCTION
..........................................................................................
167
5.2.2
METHODS
..................................................................................................
168
5.2.2.1
WIDE
ANGLE
SCATTERING
...........................................................
168
5.2.2.2
XAS
..........................................................................................
170
5.2.2.3
THE
MAGNETITE/MAGHEMITE
STRUCTURE
....................................
171
5.2.3
RESULTS
AND
DISCUSSION
..........................................................................
172
5.2.3.1
SELECTION
OF
SAMPLES
FOR
EVALUATION
......................................
172
5.2.3.2
PARTICLE
SIZE
.............................................................................
179
5.2.3.3
LATTICE
CONSTANT
......................................................................
179
5.2.3.4
OXIDATION
STATE
........................................................................
184
5.2.3.5
LOCAL
STRUCTURAL
DISTORTIONS
...................................................
186
5.2.4
SUMMARY
................................................................................................
192
5.3
MAGNETIC
STRUCTURE
.............................................................................................
195
5.3.1
INTRODUCTION
...........................................................................................
195
5.3.2
METHODS
...................................................................................................
196
5.3.2.1
SAMPLE
PREPARATION
AND
DATA
TREATMENT
..............................
196
5.3.2.2
DEVELOPMENT
OF
THE
MAGNETIC
FORM
FACTOR
MODEL
..............
197
5.3.2.3
DETERMINATION
OF
THE
MAGNETIZATION
DENSITY
......................
200
5.3.3
RESULTS
AND
DISCUSSION
...........................................................................
201
5.3.3.1
APPROACHING
THE
MAGNETIC
FORM
FACTOR
................................
201
5.3.3.2
MAGNETIC
INTERPARTICLE
CORRELATIONS
.....................................
220
5.3.4
SUMMARY
................................................................................................
229
5.4
SUPERLATTICES
.......................................................................................................
231
5.4.1
INTRODUCTION
...........................................................................................
231
5.4.2
METHODS
...................................................................................................
233
5.4.2.1
DEPOSITION
TECHNIQUES
...........................................................
233
5.4.2.2
DATA
TREATMENT
........................................................................
235
5.4.2.3
GISAXS
EVALUATION
................................................................
237
5.4.2.4
REFLECTIVITY
EVALUATION
...........................................................
240
5.4.3
RESULTS
AND
DISCUSSION
...........................................................................
241
5.4.3.1
LATERAL
ORDER
IN
MAGNETIC
NANOPARTICLE
ASSEMBLIES
...........
241
5.4.3.2
INTO
THE
THIRD
DIMENSION:
DETERMINATION
OF
THE
NANOCUBES
SUPERSTRUCTURE
........................................................
245
5.4.3.3
SUPERCRYSTALS
OF
NANOSPHERES
................................................
252
5.4.3.4
NANOCUBES
REVISITED
..............................................................
257
5.4.3.5
ROUTES
TO
A
LONG
RANGE
ORDERED
NANOPARTICLE
MONOLAYER
.
266
5.4.3.6
MAGNETIZATION
MEASUREMENTS
...............................
268
5.4.4
SUMMARY
...............................................................................................
270
6
NOT
SO
SMALL
ANGLE
NEUTRON
SCATTERING
WITH
POLARIZATION
ANALYSIS
273
6.1
INTRODUCTION
......................................................................................................
274
6.2
METHODS
...........................................................................................................
275
6.2.1
SAMPLE
PREPARATION
AND
DATA
TREATMENT
..............................................
275
6.2.1.1
DNS
.........................................................................................
275
6.2.1.2
J-NSE
.......................................................................................
275
6.2.1.3
IN12
.......................................................................................
275
6.2.2
CORRECTION
OF
IMPERFECT
POLARIZATION
...................................................
276
6.2.3
MULTIPLE
SCATTERING
CORRECTION
.............................................................
279
6.3
RESULTS
AND
DISCUSSION
....................................................................................
283
6.3.1
DNS
.......................................................................................................
283
6.3.2
J-NSE
.......................................................................................................
286
6.3.3
IN12
.......................................................................................................
292
6.3.4
COMPARISON
OF
THE
RESULTS
.....................................................................
295
6.4
SUMMARY
...........................................................................................................
296
7
CONCLUSIVE
REMARKS
299
APPENDICES
307
A
ABBREVIATIONS
&
PHYSICAL
CONSTANTS
308
B
CHEMICAL
REAGENTS
310
C
SAMPLE
HOLDERS
311
C.1
PPMS
SAMPLE
HOLDER
.........................................................................................
311
C.2
MPMS
SAMPLE
HOLDER
......................................................................................
312
D
FORM
FACTORS
USED
FOR
SMALL-ANGLE
SCATTERING
313
D.1
TRUNCATED
CUBE
.................................................................................................
313
D.2
TRUNCATED
CUBE
WITH
TRUNCATED
CUBIC
SHELL
.....................................................
315
D.3
TRUNCATED
CUBE
WITH
SPHERICAL
SHELL
.................................................
.....316
D.4
MAGNETIC
CONTRAST
VARIATION
............................................................................
318
D.5
MAGNETIC-NUCLEAR
CROSS
TERM
............................................................................
323
E
REFINEMENT
PARAMETERS
329
E.1
DIFFRACTION
........................................................................................................
329
E.2
PDF
...................................................................................................................
330
E.3
EXAFS
..............................................................................................................
330
F
NEUTRON
PDF
332
BIBLIOGRAPHY
334
|
| any_adam_object | 1 |
| author | Disch, Sabrina 1981- |
| author_GND | (DE-588)143267280 |
| author_facet | Disch, Sabrina 1981- |
| author_role | aut |
| author_sort | Disch, Sabrina 1981- |
| author_variant | s d sd |
| building | Verbundindex |
| bvnumber | BV037470723 |
| ctrlnum | (OCoLC)734075683 (DE-599)DNB1012076210 |
| dewey-full | 538.4 |
| dewey-hundreds | 500 - Natural sciences and mathematics |
| dewey-ones | 538 - Magnetism |
| dewey-raw | 538.4 |
| dewey-search | 538.4 |
| dewey-sort | 3538.4 |
| dewey-tens | 530 - Physics |
| discipline | Physik |
| format | Thesis Book |
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| genre | (DE-588)4113937-9 Hochschulschrift gnd-content |
| genre_facet | Hochschulschrift |
| id | DE-604.BV037470723 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T23:24:52Z |
| institution | BVB |
| isbn | 9783893367047 |
| language | German |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-022622488 |
| oclc_num | 734075683 |
| open_access_boolean | |
| owner | DE-12 |
| owner_facet | DE-12 |
| physical | V, 342 S. Ill., graph. Darst. 240 mm x 170 mm |
| publishDate | 2011 |
| publishDateSearch | 2011 |
| publishDateSort | 2011 |
| publisher | Forschungszentrum Jülich, Zentralbibliothek |
| record_format | marc |
| series | Schriften des Forschungszentrums Jülich |
| series2 | Schriften des Forschungszentrums Jülich : Reihe Schlüsseltechnologien |
| spelling | Disch, Sabrina 1981- Verfasser (DE-588)143267280 aut The spin structure of magnetic nanoparticles and in magnetic nanostructures Sabrina Disch Jülich Forschungszentrum Jülich, Zentralbibliothek 2011 V, 342 S. Ill., graph. Darst. 240 mm x 170 mm txt rdacontent n rdamedia nc rdacarrier Schriften des Forschungszentrums Jülich : Reihe Schlüsseltechnologien 21 Zugl.: Aachen, Univ., Diss., 2010 (DE-588)4113937-9 Hochschulschrift gnd-content Schriften des Forschungszentrums Jülich Reihe Schlüsseltechnologien ; 21 (DE-604)BV023237997 21 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=022622488&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Disch, Sabrina 1981- The spin structure of magnetic nanoparticles and in magnetic nanostructures Schriften des Forschungszentrums Jülich |
| subject_GND | (DE-588)4113937-9 |
| title | The spin structure of magnetic nanoparticles and in magnetic nanostructures |
| title_auth | The spin structure of magnetic nanoparticles and in magnetic nanostructures |
| title_exact_search | The spin structure of magnetic nanoparticles and in magnetic nanostructures |
| title_full | The spin structure of magnetic nanoparticles and in magnetic nanostructures Sabrina Disch |
| title_fullStr | The spin structure of magnetic nanoparticles and in magnetic nanostructures Sabrina Disch |
| title_full_unstemmed | The spin structure of magnetic nanoparticles and in magnetic nanostructures Sabrina Disch |
| title_short | The spin structure of magnetic nanoparticles and in magnetic nanostructures |
| title_sort | the spin structure of magnetic nanoparticles and in magnetic nanostructures |
| topic_facet | Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=022622488&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV023237997 |
| work_keys_str_mv | AT dischsabrina thespinstructureofmagneticnanoparticlesandinmagneticnanostructures |