Study of charge, spin, and orbital states in strongly correlated transition metal oxides:
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| Format: | Thesis Book |
| Language: | English |
| Published: |
2009
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| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Physical Description: | IV, 198 S. graph. Darst. 22 cm |
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| adam_text | Titel: Study of charge, spin, and orbital states in strongly correlated transition metal oxides
Autor: Chang, Chun-Fu
Jahr: 2009
Contents
1 Strongly Correlated Transitiori-Metal Oxides 1
Li Introduction........................... 1
1.2 Conolafed-Ele-etron Physics in TMOs ............ 1
1.2.1 The Hubbard Model.................. 5
1.2.2 The Zaanen-Sawatzky-Allen Model.......... 6
1.2.3 Charge, Orbital, and Spin Interaetions........ 9
(A) Charge Ordering.................. 11
(B) Orbital Degeneracy and Jahn-Teller Effect ... 12
(C) Magnefic Interactions and Orbital Ordering . . 11
Rpferences............................ 19
2 Experimental Details: XAS, RSXD, and MBE 23
2.1 X-ray Light Sources ...................... 2.3
2.2 Soft X-ray Absorption Spectroscopy (XAS)......... 27
2.2.1 Electron yicld measurements ............. 28
2.2.2 Fluorescence yield measurement ........... 29
2.3 Element. Valencc. Spin, and Orbital Sensitivities of XAS . . 30
2.4 Resonant Soft X-ray Diflraction (RSXD)........... 35
2.4.1 Typical scaus through roeiprocal space........ 39
2.5 Thin Film Growth....................... 40
2.5.1 Molocular Boam Epitaxy (MBE)........... 10
2.5.2 Rerlocfioii High Energy Electron Diflraction..... 42
2.5.3 Experimental setup................... 46
RcTerences............................ 51
3 Calculation of X-ray Absorption Spectroscopy 57
3.1 Origins of Multiplet Effects in XAS.............. 58
3.2 Atomic Multiplet Theory ................... 59
3.3 Ligand-Field Theory...................... 60
3.3.1 Crystal-field theory................... 61
3.3.2 Hybridization between TM and ligands ....... 64
3.4 Configuration-Interaction Cluster Calculation........ 65
References............................
Spin Blockade, Orbital Occupation, and Charge Ordering
in LaL5Sro.5Co04 n
73
4.1 Introduction...........................
75
4.2 Experimental..........................
75
4.3 Results and Discussions....................
4.4 Summary............................
4.5 Appendix............................
References............................
Orbital Order in LaasSr^MnO^ a failure of the local
Jahn-Teller physics?
5.1 Introduction...........................
5.2 Experimental..........................
5.3 Results and Discussions....................
5.4 Summary............................
References............................
The Role of Dimers on the Electronic Structure of Ti203 107
107
6.1 Introduction...........................
6.2 Experimental.......................... l08
109
6.3 Results and Discussions....................
6.4 Metal-Insulator transition in Ti2Ü3 .............
6.5 Summary............................
101
References............................
A RSXD Study on t2g Orbital Order in Magnetite 125
7.1 Introduction........................... 125
7.2 Experimental.......................... 128
128
7.2.1 Sample preparation ..................
7.2.2 RSXD measurement..................
7.3 Results and Discussions....................
7.3.1 Comparison of film and bulk data .......... 130
7.3.2 Real RSXD spectra of magnetite........... 133
7.3.3 Polarization and azimuthal dependence; untwinning
spectra ......................... 143
7.4 Summary............................ 149
7.5 Appendix............................ 150
References............................ 153
8 Structural Reconstruction at the Initial Stages of Epitaxial
Growth of the Polar Fe304/MgO (001) Thin Film 157
8.1 Introduction........................... 157
8.2 Experimental.......................... 158
8.3 Results and Discussions.................... 160
8.4 Summary............................ 168
8.5 Appendix............................ 169
8.5.1 Tasker s Classification for surfaces of an ionic crystal 169
8.5.2 CI calculated results for Fe-L2,3 XAS spectra of Fe3Ü4
films........................... 170
References............................ 173
9 Summary 177
10 Zusammenfassung 183
Acknowledgment 188
Erklärung 192
Publications 194
|
| any_adam_object | 1 |
| author | Chang, Chun-Fu |
| author_GND | (DE-588)142492809 |
| author_facet | Chang, Chun-Fu |
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| bvnumber | BV037252511 |
| ctrlnum | (OCoLC)697838275 (DE-599)DNB1008707066 |
| dewey-full | 530.416 |
| dewey-hundreds | 500 - Natural sciences and mathematics |
| dewey-ones | 530 - Physics |
| dewey-raw | 530.416 |
| dewey-search | 530.416 |
| dewey-sort | 3530.416 |
| dewey-tens | 530 - Physics |
| discipline | Physik |
| format | Thesis Book |
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| indexdate | 2024-07-09T22:54:30Z |
| institution | BVB |
| language | English |
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| physical | IV, 198 S. graph. Darst. 22 cm |
| publishDate | 2009 |
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| spelling | Chang, Chun-Fu Verfasser (DE-588)142492809 aut Study of charge, spin, and orbital states in strongly correlated transition metal oxides vorgelegt von Chun-Fu Chang 2009 IV, 198 S. graph. Darst. 22 cm txt rdacontent n rdamedia nc rdacarrier Köln, Univ., Diss., 2009 Röntgenabsorptionsspektroskopie (DE-588)4178303-7 gnd rswk-swf Elektronenkonfiguration (DE-588)4263652-8 gnd rswk-swf Übergangsmetalloxide (DE-588)4186583-2 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Übergangsmetalloxide (DE-588)4186583-2 s Elektronenkonfiguration (DE-588)4263652-8 s Röntgenabsorptionsspektroskopie (DE-588)4178303-7 s DE-604 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=021165791&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Chang, Chun-Fu Study of charge, spin, and orbital states in strongly correlated transition metal oxides Röntgenabsorptionsspektroskopie (DE-588)4178303-7 gnd Elektronenkonfiguration (DE-588)4263652-8 gnd Übergangsmetalloxide (DE-588)4186583-2 gnd |
| subject_GND | (DE-588)4178303-7 (DE-588)4263652-8 (DE-588)4186583-2 (DE-588)4113937-9 |
| title | Study of charge, spin, and orbital states in strongly correlated transition metal oxides |
| title_auth | Study of charge, spin, and orbital states in strongly correlated transition metal oxides |
| title_exact_search | Study of charge, spin, and orbital states in strongly correlated transition metal oxides |
| title_full | Study of charge, spin, and orbital states in strongly correlated transition metal oxides vorgelegt von Chun-Fu Chang |
| title_fullStr | Study of charge, spin, and orbital states in strongly correlated transition metal oxides vorgelegt von Chun-Fu Chang |
| title_full_unstemmed | Study of charge, spin, and orbital states in strongly correlated transition metal oxides vorgelegt von Chun-Fu Chang |
| title_short | Study of charge, spin, and orbital states in strongly correlated transition metal oxides |
| title_sort | study of charge spin and orbital states in strongly correlated transition metal oxides |
| topic | Röntgenabsorptionsspektroskopie (DE-588)4178303-7 gnd Elektronenkonfiguration (DE-588)4263652-8 gnd Übergangsmetalloxide (DE-588)4186583-2 gnd |
| topic_facet | Röntgenabsorptionsspektroskopie Elektronenkonfiguration Übergangsmetalloxide Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=021165791&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT changchunfu studyofchargespinandorbitalstatesinstronglycorrelatedtransitionmetaloxides |