Curie temperature and magnetic phase transition of Nanostructured ultrathin Fe/GaAs (001): size dependence and relevance of dipolar coupling:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Berlin
mensch und buch verl.
2009
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | 85 S. Ill., graph. Darst. |
| ISBN: | 9783866647152 |
Internformat
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| 245 | 1 | 0 | |a Curie temperature and magnetic phase transition of Nanostructured ultrathin Fe/GaAs (001): size dependence and relevance of dipolar coupling |c vorgelegt von Roland Meier |
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Datensatz im Suchindex
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| adam_text | CONTENTS 1 INTRODUCTION G 2 FUNDAMENTALS FOR ULTRATHIN FE FILMS ON
GAAS(OOL) 9 2.1 STRUCTURE AND GROWTH 9 2.2 FERROMAGNETISM 11 2.2.1
ORIGIN 11 2.2.2 MAGNETIC INTERACTIONS 12 2.2.3 THIN FERROMAGNETIC FILMS
14 2.2.4 MAGNETIC ANISOTROPY 16 2.3 THERMAL BEHAVIOR OF MAGNETIZATION 18
2.3.1 IMPLICATIONS OF REDUCED DIMENSIONALITY 19 2.3.2 SPIN WAVE
EXCITATIONS 19 2.3.3 CURIE TEMPERATURE 21 2.3.4 PHASE TRANSITION 23 3
EXPERIMENTAL METHODS 27 3.1 SAMPLE FABRICATION 27 3.1.1 FILM DEPOSITION
BY MOLECULAR BEAM EPITAXY 27 3.1.2 PATTERNING WITH ELECTRON BEAM
LITHOGRAPHY 31 3.2 MAGNETIC CHARACTERIZATION 38 3.2.1 THE MEASUREMENT
SET-UP 38 3.2.2 DATA EVALUATION 44 BIBLIOGRAFISCHE INFORMATIONEN
HTTP://D-NB.INFO/100028090X DIGITALISIERT DURCH ACKNOWLEDGEMENT * 85 4
RESULTS 46 4.1 CURIE TEMPERATURE OF NANODISK-ARRAYS 46 4.1.1 THE
CORRELATION WITH THE STRUCTURE SIZE 46 4.1.2 EXCLUDING
SUPERFERROMAGNETIC COUPLING 47 4.1.3 THE RELEVANCE OF A REDUCED EXCHANGE
ENERGY 49 4.2 THE RELEVANCE OF DIPOLAR COUPLING 50 4.2.1 CORRELATION
WITH THE SPACING 50 4.2.2 THE STATIC DIPOLAR FIELD IN NANOSTRUCTURE
ARRAYS 51 4.2.3 INFLUENCE OF THE STRAY FIELD 54 4.3 CURIE TEMPERATURE OF
SINGLE ISOLATED NANODISKS 57 4.4 SIGNIFICANCE OF THE UNDERLYING FILM
THICKNESS 59 4.5 CORRELATION MODELS 62 4.5.1 MAGNETOSTATIC CORRELATION
IN THE MEAN FIELD THEORY 62 4.5.2 INCLUDING DYNAMICAL EFFECTS 63 4.6
CURIE TEMPERATURE OF NANOBARS 65 4.6.1 EXPERIMENTAL RESULTS 65 4.6.2
APPLICATION OF AN ANISOTROPIC MAGNETIC COUPLING THEORY 67 4.7
CHARACTERISTICS OF THE CRITICAL BEHAVIOR 69 4.7.1 THE CRITICAL EXPONENT
SS 69 4.7.2 SHARPNESS OF PHASE TRANSITION 71 5 SUMMARY 73 6 APPENDIX 78
6.1 CONVERSION OF USED MAGNETIC VALUES 78 6.2 CONSTANTS 78 7
BIBLIOGRAPHY * 79
|
| any_adam_object | 1 |
| author | Meier, Roland |
| author_facet | Meier, Roland |
| author_role | aut |
| author_sort | Meier, Roland |
| author_variant | r m rm |
| building | Verbundindex |
| bvnumber | BV036094307 |
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| 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 |
| format | Thesis Book |
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| indexdate | 2024-07-09T22:11:26Z |
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| isbn | 9783866647152 |
| language | English |
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| spelling | Meier, Roland Verfasser aut Curie temperature and magnetic phase transition of Nanostructured ultrathin Fe/GaAs (001): size dependence and relevance of dipolar coupling vorgelegt von Roland Meier Berlin mensch und buch verl. 2009 85 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Regensburg, Univ., Diss., 2009 Ferromagnetische Phasenumwandlung (DE-588)4341317-1 gnd rswk-swf Curie-Temperatur (DE-588)4148403-4 gnd rswk-swf Dünne Schicht (DE-588)4136925-7 gnd rswk-swf Eisen (DE-588)4014002-7 gnd rswk-swf Galliumarsenid (DE-588)4019155-2 gnd rswk-swf Kristallfläche (DE-588)4151344-7 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Galliumarsenid (DE-588)4019155-2 s Kristallfläche (DE-588)4151344-7 s Eisen (DE-588)4014002-7 s Dünne Schicht (DE-588)4136925-7 s Ferromagnetische Phasenumwandlung (DE-588)4341317-1 s Curie-Temperatur (DE-588)4148403-4 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018984840&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Meier, Roland Curie temperature and magnetic phase transition of Nanostructured ultrathin Fe/GaAs (001): size dependence and relevance of dipolar coupling Ferromagnetische Phasenumwandlung (DE-588)4341317-1 gnd Curie-Temperatur (DE-588)4148403-4 gnd Dünne Schicht (DE-588)4136925-7 gnd Eisen (DE-588)4014002-7 gnd Galliumarsenid (DE-588)4019155-2 gnd Kristallfläche (DE-588)4151344-7 gnd |
| subject_GND | (DE-588)4341317-1 (DE-588)4148403-4 (DE-588)4136925-7 (DE-588)4014002-7 (DE-588)4019155-2 (DE-588)4151344-7 (DE-588)4113937-9 |
| title | Curie temperature and magnetic phase transition of Nanostructured ultrathin Fe/GaAs (001): size dependence and relevance of dipolar coupling |
| title_auth | Curie temperature and magnetic phase transition of Nanostructured ultrathin Fe/GaAs (001): size dependence and relevance of dipolar coupling |
| title_exact_search | Curie temperature and magnetic phase transition of Nanostructured ultrathin Fe/GaAs (001): size dependence and relevance of dipolar coupling |
| title_full | Curie temperature and magnetic phase transition of Nanostructured ultrathin Fe/GaAs (001): size dependence and relevance of dipolar coupling vorgelegt von Roland Meier |
| title_fullStr | Curie temperature and magnetic phase transition of Nanostructured ultrathin Fe/GaAs (001): size dependence and relevance of dipolar coupling vorgelegt von Roland Meier |
| title_full_unstemmed | Curie temperature and magnetic phase transition of Nanostructured ultrathin Fe/GaAs (001): size dependence and relevance of dipolar coupling vorgelegt von Roland Meier |
| title_short | Curie temperature and magnetic phase transition of Nanostructured ultrathin Fe/GaAs (001): size dependence and relevance of dipolar coupling |
| title_sort | curie temperature and magnetic phase transition of nanostructured ultrathin fe gaas 001 size dependence and relevance of dipolar coupling |
| topic | Ferromagnetische Phasenumwandlung (DE-588)4341317-1 gnd Curie-Temperatur (DE-588)4148403-4 gnd Dünne Schicht (DE-588)4136925-7 gnd Eisen (DE-588)4014002-7 gnd Galliumarsenid (DE-588)4019155-2 gnd Kristallfläche (DE-588)4151344-7 gnd |
| topic_facet | Ferromagnetische Phasenumwandlung Curie-Temperatur Dünne Schicht Eisen Galliumarsenid Kristallfläche Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018984840&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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