Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 253 for “"spin-orbit"”.
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Spin-orbit coupled Bose gases
… gauge fields with ultracold atoms, including spin-dependent gauge fields, such as spin-orbit coupling. Motivated by this goal our lab explored several approaches to generate a one-dimensional spinorbit coupling interaction, which has a rich phase diagram and plays an important role for …
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Spin-orbit resonance of Mercury.
Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics. Thesis. 1969. Ph.D.
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Introducing spin-orbit interaction in graphene
… it central to modern nanoscience. However, the spin-orbit interaction (SOI) naturally present in graphene is extremely weak and has yet to be observed experimentally. This presents an obstacle for accessing novel phenomena in transport and optics, in particular those related to topological …
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SPIN-ORBIT COUPLING IN STRONGLY CORRELATED SYSTEMS
In materials with heavy elements, both strong spin-orbit coupling and Coulomb interactions are possible to exist. Both can significantly change the properties of materials. The coexistence of them can induce more interesting phenomena in solids. In this dissertation, three different cases involved …
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Three-dimensional evolution of Mercury's spin-orbit resonance
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Earth and Planetary Sciences, 1975
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Interface-driven spin-orbit torques in magnetic heterostructures
The connection between charge and spin transport in solid state materials offers new techniques for generating and detecting spin currents and could potentially allow high-performance memory and logic devices. Simple multilayer thin films or "heterostructures" such as Pt/Co have broken inversion …
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Spin-Orbit Delays in Photoemission from Bi2Te3 and Bi2Se3
… is reported. In Bi<sub>*2*</sub>Te<sub>*3*</sub> spin-orbit delays between photoemission from d<sub>*5/2*</sub> and d<sub>*3/2*</sub> initial states of Bi 5d and Te 4d core level bands of t<sub>*LS*</sub>(Bi 5d) = 30 +/- 13 as and t<sub>*LS*</sub>(Te 4d) = -39 +/- 18 as were measured at a central …
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Geometric frustration in high spin orbit coupling magnetic materials
… of frustrated materials. The ferrimagnetic spinel $\mathrm{CoV_2O_4}$ has been a topic of recent interest, both as a frustrated insulator with unquenched orbital degeneracy and as a near-itinerant magnet which can be driven metallic with moderate applied pressure. Here, we report on our …
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Spin-orbit coupling and supersolidity in ultracold quantum gases
… several experiments on realizing one-dimensional spin-orbit coupling in ultracold 23Na gases and the creation of a new form of matter with supersolid properties using interacting spin-orbit coupled Bose-Einstein condensates. The first part describes the realization of spin-orbit coupling in …
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Topological Phases in Perovskite Iridates with Strong Spin-Orbit Coupling
… topological phases in materials with strong spin-orbit coupling. This thesis focuses on possible exotic topological phases that stem from the interplay between strong spin-orbit coupling and non-trivial band structure in three-dimensional perovskite Iridates and other layered Iridate …
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Study of the effect of spin-orbit interaction in solids
Jedním z důsledků spin-orbitální interakce v pevných látkách je anomální Hallův jev. V této práci popíšeme procesy vedoucí ke vzniku anomálního Hallova jevu a jeho význam ve fyzice pevných látek. Uvedeme formalismus lineární odezvy a další nástroje nutné pro provádění výpočtů anomální Hallovy …
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Topics in Spin-Orbit Coupling in Cold Atoms and Semiconductors
… contains a collection of topics on the spin-orbit coupling of cold atoms and semiconductors. We first consider the effects of an optically induced spin-orbit interaction on a system of Bosonic atoms. The spin-orbit term couples the emergent pseudo-spin- 1/2 degree of freedom to momentum. …
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Electrical control of spin dynamics in spin-orbit coupled ferromagnets
… In materials with broken inversion symmetry and spin-orbit coupling, electrical current can exert a torque on a local magnetisation. In the studies presented here, a microwave current-induced ferromagnetic resonance (spin-orbit FMR) technique is used to characterise the dynamical magnetic …
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Spin-orbit torque switching of compensated ferrimagnetic cobalt-terbium alloys
Spintronic devices promise to be an energy efficient alternative to complementary metal oxide semiconductor devices for logic and memory. However, in order to be more competitive, further reductions in switching energy and switching speed are needed. Recently, there has been interest in using …
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Spin-orbit or Aharonov-Casher edge states in semiconductor systems
… Aharonov-Casher vector potential or Rashba-type spin-orbit interaction using quantum transport in InGaAs/InAlAs herterostructures. The Aharonov-Casher effect is electromagnetically dual to the Aharonov-Bohm effect and is predicted to lead to edge states in a parabolic confinement at …
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Ultracold quantum scattering in the presence of synthetic spin-orbit coupling
… of synthetic gauge fields is the artificial spin-orbit coupling. We discuss three different aspects in scattering theory: ultracold collision, scattering resonance, and bound state formation from a few-body perspective when the atomic spin states are coupled with their center-of-mass motion. …
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Optical studies of current-induced spin-orbit effects in magnetic systems
… of magnetic moments is essential for future spintronics applications, in which the intrinsic spin of the electron is utilized in addition to the electron charge for data processing and storage. Spin-orbit-interaction-induced phenomena, including the spin Hall effect, Rashba-Edelstein effect …
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Room temperature spin-orbit torque switching induced by a topological insulator
… have attracted great attention due to the rich spin-orbit physics and promising applications in spintronic devices. The strongly spin-moment coupled electronic states have been extensively pursued to realize efficient spin-orbit torque switching. However, so far current-induced magnetic …
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Spin-Orbit Coupling in SrTiO3/Si Thin Films at High Carrier Concentration
… co-existence of electron correlations and strong spin-orbit coupling on SrTiO3 films on Si(001). Our group has studied the sample having lower carrier concentration (≤ 10¹⁴, cmˉ²) which shows Weak- localization effect. As the carrier concentration increases ( (1 − 2) × 10¹⁴, cmˉ²), we see WAL …
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