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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/51188Full metadata record
| ???org.dspace.app.webui.jsptag.ItemTag.dcfield??? | Value | Language |
|---|---|---|
| dc.contributor.advisor | 陳永芳 | |
| dc.contributor.author | Hao Chang | en |
| dc.contributor.author | 張皓 | zh_TW |
| dc.date.accessioned | 2021-06-15T13:27:02Z | - |
| dc.date.available | 2021-03-08 | |
| dc.date.copyright | 2016-03-08 | |
| dc.date.issued | 2015 | |
| dc.date.submitted | 2016-02-19 | |
| dc.identifier.citation | [1] Baibich, M. N.; Broto, J. M.; Fert, A.; Van Dau, F. N.; Petroff, F.; Etienne, P.; Creuzet, G.; Friederich, A.; Chazelas, J. Phys. Rev. Lett., 61, 2472 (2008).
[2] Binasch, G.; Gr nberg, P.; Saurenbach, F.; Zinn, W. Phys. Rev. B 39, 4828 (1989). [3] Prinz, G. A. Science 282, 1660 (1998). [4] Awschalom, D.; Loss, D.; Samarth, N.: Semiconductor Spintronics and Quantum Computation, Springer-Verlag Berlin Heidelberg, Germany (2002). [5] Wolf, S. A.; Awschalom, D. D.; Buhrman, R. A.; Daughton, J. M.; von Molnr, S.; Roukes, M. L.; Chtchelkanova, A. Y.; Treger, D. M. Science 294, 1488 (2001. [6] Bao, J.; Bragas, A. V.; Furdyna, J. K.; Merlin, R. Nat. Mater. 2, 175 (2003). [7] Igor Zutic, Jaroslav Fabian, S. Das Sarma, Rev. Mod. Phys. 76, 323-410 (2004) [8] M. I. Dyakonov: Spin Physics in Semiconductors, Springer-Verlag Berlin Heidelberg (2008) [9] R. Elliott, Phys. Rev. 96, 266 (1954). [10] S. L. Chen, W. M. Chen, and I. A. Buyanova, Phys. Rev. B 89, 235202 (2014) [11] S.J.Pearton,D.P.Norton,Y.W.Heo,L.C.Tien,M.P.Ivill,Y.Li,B.S.Kang,F. Ren, J. Kelly, A. F. Hebard, Journal of Electronic Materials 35, 5 (2006). [12] DonaldA.Neamen:SemiconductorPhysicsandDevices,McGraw-Hill,NewYork (2012). [13] http://www.nims.go.jp/mmu/tutorials/halfmetal.html [14] https://en.wikipedia.org/wiki/Pulsed_laser_deposition [15] https://en.wikipedia.org/wiki/Reflection_high-energy_electron_diffraction [16] https://en.wikipedia.org/wiki/Polarization_(waves) [17] WeiSeaChang,Heng-JuiLiu,VuThanhTra,Jhih-WeiChen,Tzu-ChiaoWei,W. Y. Tzeng, Yuanmin Zhu,X Ho-Hung Kuo, Ying-Hui Hsieh, Jheng-Cyuan Lin, Qian Zhan,X Chih Wei Luo, Jiunn-Yuan Lin, Jr-Hau He, Chung Lin Wu, and Ying-Hao Chu, ACS Nano 8 (6), pp 6242–6249 (2014). [18] P. B. Allen, H. Berger, O. Chauvet, L. Forro, T. Jarlborg, A. Junod, B. Revaz, and G. Santi, Phys. Rev. B 53, 4393 (1996). [19] https://en.wikipedia.org/wiki/Half-metal [20] F Bern, M Ziese, A. Setzer, E Pippel, D Hesse and I Vrejoiu, J. Phys. Condens. Matter 25, 496003 (2013). [21] E. C. Stoner, Phil. Mag. 36, p. 803 (1945). [22] J. A. Osborn, Phys. Rev. 67, p. 351 (1945). [23] MathiasGetzlaff:FundamentalsofMagnetism,Springer-VerlagBerlinHeidelberg, Germany (1965). | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/51188 | - |
| dc.description.abstract | 本論文研究磁性材料釕酸鍶(SrRuO3)與氧化鋅的自組裝奈米複合物光激發光 的光學旋偏振特性。利用在磁性物質自弦向上及向下的電子能帶結構的不同,在和 半導體界面使不同自弦的電子產生不同的能帶彎曲,造成氧化鋅內部電子自弦分 量堆積(spin accumulation),因而產生具有旋偏振性的光激發光。我們相信藉由這項 機制,能產成自發性自弦極化的半導體並對自弦電子學的應用方面有很大的幫助。 | zh_TW |
| dc.description.abstract | In this thesis, spin polarization of light emission arising from self-assembled ZnO/SrRuO3 nanocomposites, with heterojunctions of magnetic materials and semiconductors, have been investigated.
Instead of spin injection by optical or electrical method, the population imbalance between spin-up and spin-down electrons in semiconductors can be achieved by intrinsic distinct band alignments of electrons with different spin orientations at the interface of materials. The energy-band structure induces the selective charge transfer of electrons with opposite spins and generates spin accumulation at the boundary inside ZnO, which then results in circularly polarized photoluminescence. With this mechanism, we believe that self-polarization of electron spin in semiconductors can be achieved and may have a variety of application in spintronics. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T13:27:02Z (GMT). No. of bitstreams: 1 ntu-104-R02222031-1.pdf: 3239002 bytes, checksum: 0f198b306454e0914590792ba398d942 (MD5) Previous issue date: 2015 | en |
| dc.description.tableofcontents | 口試委員會審定書..................................... #
誌謝..................................... i 中文摘要..................................... ii ABSTRACT..................................... iii CONTENTS..................................... iv LIST OF FIGURES..................................... vi Chapter 1 Introduction..................................... 1 Chapter 2 Theoretical Background..................................... 3 2.1 Energy Band of Solids..................................... 3 2.2 Mechanism of Photoluminescence of Semiconductor..................................... 6 2.3 Spin-dependent density of state and half-metal..................................... 8 2.4 Angular Momentum Conservation in Optical Transition..................................... 10 2.5 Magnetic Anisotropy effect ..................................... 10 2.5.1 Demagnetizing Field..................................... 11 2.5.2 Demagnetizing Factor..................................... 13 2.5.3 Shape Anisotropy..................................... 17 Chapter 3 Experimental Details..................................... 19 3.1 Laser-MBE..................................... 19 3.2 Photoluminescence Measurement..................................... 21 3.3 Optics: circular polarization of light..................................... 22 3.4 Sample: Self-assembled SrRuO3/ZnO..................................... 25 3.5 Measurement..................................... 26 Chapter 4 Results and Discussion..................................... 28 Chapter 5 Conclusion and Future Work..................................... 35 REFERENCE..................................... 36 | |
| dc.language.iso | en | |
| dc.subject | 自旋電子學 | zh_TW |
| dc.subject | 釕酸鍶 | zh_TW |
| dc.subject | 氧化鋅 | zh_TW |
| dc.subject | 旋偏振 | zh_TW |
| dc.subject | 釕酸鍶 | zh_TW |
| dc.subject | 氧化鋅 | zh_TW |
| dc.subject | 旋偏振 | zh_TW |
| dc.subject | 自旋電子學 | zh_TW |
| dc.subject | Spintronics | en |
| dc.subject | ZnO | en |
| dc.subject | Polarization | en |
| dc.subject | Spintronics | en |
| dc.subject | SrRuO3 | en |
| dc.subject | SrRuO3 | en |
| dc.subject | ZnO | en |
| dc.subject | Polarization | en |
| dc.title | 釕酸鍶與氧化鋅奈米複合物之光學旋偏振特性研究 | zh_TW |
| dc.title | Circularly polarized emission arising from SrRuO3 and ZnO nanocomposites | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 104-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 沈志霖,許芳琪 | |
| dc.subject.keyword | 釕酸鍶,氧化鋅,旋偏振,自旋電子學, | zh_TW |
| dc.subject.keyword | SrRuO3,ZnO,Polarization,Spintronics, | en |
| dc.relation.page | 37 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2016-02-19 | |
| dc.contributor.author-college | 理學院 | zh_TW |
| dc.contributor.author-dept | 物理研究所 | zh_TW |
| Appears in Collections: | 物理學系 | |
Files in This Item:
| File | Size | Format | |
|---|---|---|---|
| ntu-104-1.pdf Restricted Access | 3.16 MB | Adobe PDF |
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