An NMR study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride:
Gespeichert in:
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Göttingen
Cuvillier
2011 [erschienen] 2012
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| Ausgabe: | 1. Aufl. |
| Schlagworte: | |
| Online-Zugang: | Inhaltstext Inhaltsverzeichnis |
| Beschreibung: | II, 158 S. Ill., graph. Darst. |
| ISBN: | 9783869559919 |
Internformat
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| 245 | 1 | 0 | |a An NMR study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride |c vorgelegt von Hannes Kühne |
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Datensatz im Suchindex
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| adam_text |
IMAGE 1
CONTENTS
1 INTRODUCTION 3
2 THE ANTIFERROMAGNETIC S = 1/2 HEISENBERG CHAIN MODEL 8
2.1 HAMILTONIAN 8
2.2 THERMODYNAMIC PROPERTIES O F THE ISOTROPIC A F H C MODEL 14
2.2.1 MAGNETIZATION 14
2.2.2 SPECIFIC HEAT 16
2.3 DYNAMICAL STRUCTURE FACTOR 17
2.3.1 FIELD AND TEMPERATURE DEPENDENCE O F S(G, A ) ,18
2.4 DETERMINATION O F L / T \ B Y MEANS O F CONFORMAL FIELD THEORY 2 4
3 NUCLEAR MAGNETIC RESONANCE 31
3.1 MAGNETIZATION AND SUSCEPTIBILITY 31
3.2 STATIC HYPERFINE FIELDS 3 4
3.2.1 TYPES O F HYPERFINE FIELDS 35
3.2.2 DIPOLE-DIPOLE COUPLING 3 6
3.2.3 FERMI CONTACT EXCHANGE 38
3.2.4 SHIELDING TENSOR 3 8
3.2.5 QUADRUPOLE INTERACTION 39
3.2.6 ROTATION O F MAGNETIC HYPERFINE FIELDS 4 1
3.3 LEVEL SPLITTING IN THE PRESENCE O F HYPERFINE FIELDS 4 1
3.3.1 THE NUCLEAR ZEEMAN EFFECT - MAGNETIC SPLITTING 41
3.3.2 QUADRUPOLAR SPLITTING 4 3
3.4 DYNAMIC HYPERFINE FIELDS 4 4
3.4.1 MAGNETIC FLUCTUATIONS - THE BLOCH EQUATIONS 4 5
3.4.2 MEASUREMENT O F RELAXATION TIMES - PULSE SEQUENCES - 4 7
3.4.3 MEASUREMENT O F T 2 - SPIN DECOHERENCE 4 8
3.4.4 MEASUREMENT O F T\ - SCATTERING WITH QUASIPARTICLES 4 9
3.5 RELAXATION IN THE PRESENCE O F ZEEMAN AND QUADRUPOLAR SPLITTING 5 0
3.6 SPIN-LATTICE RELAXATION CAUSED BY MAGNETIC FLUCTUATIONS 52
3.7 SPIN-SPIN RELAXATION DUE TO INDIRECT COUPLING 5 3
3.8 INSTRUMENTAL SETUPS 5 3
HTTP://D-NB.INFO/1019319194
IMAGE 2
CONTENTS
4 THE SPIN CHAIN S Y S T E M S CUPZN AND PHNCUCI 57
4.1 COPPER PYRAZINE DINITRATE (CUPZN) 57
4.1.1 MAGNETIC EXCHANGE MECHANISMS 6 0
4.1.2 SAMPLE PREPARATION 6 2
4.1.3 REVIEW O F EXPERIMENTS FROM THE LITERATURE 6 2
4.2 BISPHENAZINIUM COPPER TETRACHLORIDE (PHNCUCI) 71
4.2.1 CRYSTAL STRUCTURE 71
4.2.2 SAMPLE PREPARATION 7 3
5 RESULTS AND DISCUSSION OF THE THERMODYNAMIC EXPERIMENTS 76
5.1 COPPER PYRAZINE DINITRATE 7 6
5.1.1 MAGNETIZATION 7 6
5.2 BISPHENAZINIUM COPPER TETRACHLORIDE 7 8
5.2.1 MAGNETIZATION 78
5.2.2 SPECIFIC HEAT 85
5.2.3 CONCLUSION 88
6 RESULTS AND DISCUSSION OF THE NMR EXPERIMENTS 90
6.1 COPPER PYRAZINE DINITRATE 9 0
6.1.1 13 C NMR: STATIC PROPERTIES AND HYPERFINE COUPLING MECHANISMS . .
. 9 2
6.1.2 13 C NMR: COMPARISON O F DYNAMICS WITH Q M C CALCULATIONS 103
6.1.3 13 C NMR: COMPARISON O F DYNAMICS WITH ANALYTICAL THEORY 110
6.1.4 14 N NMR: STATIC PROPERTIES AND HYPERFINE COUPLING 114
6.1.5 CONCLUSION 124
6.2 BISPHENAZINIUM COPPER TETRACHLORIDE 126
6.2.1 CALIBRATION O F THE CRYOMAGNET 127
6.2.2 ' H NMR: STATIC PROPERTIES AND HYPERFINE COUPLING 130
6.2.3 ' H NMR: FIELD-AND TEMPERATURE-DEPENDENT DYNAMICS 137
6.2.4 35 C1 NMR: COMPARISON WITH THE ' H RESULTS 141
6.2.5 DISCUSSION O F FOUR TYPICAL FIRST-APPROACH SCENARIOS 144
6.2.6 CONCLUSION 145
7 SUMMARY 147
II |
| any_adam_object | 1 |
| author | Kühne, Hannes 1979- |
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| building | Verbundindex |
| bvnumber | BV039927232 |
| ctrlnum | (OCoLC)775831130 (DE-599)DNB1019319194 |
| dewey-full | 530.4175 |
| dewey-hundreds | 500 - Natural sciences and mathematics |
| dewey-ones | 530 - Physics |
| dewey-raw | 530.4175 |
| dewey-search | 530.4175 |
| dewey-sort | 3530.4175 |
| dewey-tens | 530 - Physics |
| discipline | Physik |
| edition | 1. Aufl. |
| format | Thesis Book |
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| institution | BVB |
| isbn | 9783869559919 |
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| physical | II, 158 S. Ill., graph. Darst. |
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| spelling | Kühne, Hannes 1979- Verfasser (DE-588)1020691115 aut An NMR study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride vorgelegt von Hannes Kühne 1. Aufl. Göttingen Cuvillier 2011 [erschienen] 2012 II, 158 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Dresden, Techn. Univ., Diss., 2011 Kupferverbindungen (DE-588)4166177-1 gnd rswk-swf Pyrazinderivate (DE-588)4176468-7 gnd rswk-swf Spinkette (DE-588)4263231-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Spinkette (DE-588)4263231-6 s Kupferverbindungen (DE-588)4166177-1 s Pyrazinderivate (DE-588)4176468-7 s DE-604 X:MVB text/html http://deposit.dnb.de/cgi-bin/dokserv?id=3969040&prov=M&dok_var=1&dok_ext=htm Inhaltstext DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024785576&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Kühne, Hannes 1979- An NMR study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride Kupferverbindungen (DE-588)4166177-1 gnd Pyrazinderivate (DE-588)4176468-7 gnd Spinkette (DE-588)4263231-6 gnd |
| subject_GND | (DE-588)4166177-1 (DE-588)4176468-7 (DE-588)4263231-6 (DE-588)4113937-9 |
| title | An NMR study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride |
| title_auth | An NMR study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride |
| title_exact_search | An NMR study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride |
| title_full | An NMR study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride vorgelegt von Hannes Kühne |
| title_fullStr | An NMR study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride vorgelegt von Hannes Kühne |
| title_full_unstemmed | An NMR study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride vorgelegt von Hannes Kühne |
| title_short | An NMR study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride |
| title_sort | an nmr study of the spin chain systems copper pyrazine dinitrate and bisphenazinium copper tetrachloride |
| topic | Kupferverbindungen (DE-588)4166177-1 gnd Pyrazinderivate (DE-588)4176468-7 gnd Spinkette (DE-588)4263231-6 gnd |
| topic_facet | Kupferverbindungen Pyrazinderivate Spinkette Hochschulschrift |
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