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421
Engineered terahertz emission from spintronic heterostructures: amplitude, phase and chirality
Published 2023“…As such, the photoexcitation leads to ultrafast spin-scattering events in the FM, during which the spins transport from the FM into the adjacent heavy metal(HM) layer to experience an inverse spin Hall effect, producing a transverse charge current and terahertz radiation. …”
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Thesis-Doctor of Philosophy -
422
Convective boiling and condensation in enhanced tubes produced by selective laser melting
Published 2018“…The design of the four tubes are five long circumferential pin fins, eight short circumferential pin fins, twisted pin fins and a metallic foam structure. …”
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Final Year Project (FYP) -
423
Dynamics of a magnetic polaron in an antiferromagnet
Published 2024“…We uncover the nuanced dependence of hole and spin deviation dynamics on the spin-spin coupling parameter J, revealing a thermally-activated landscape where hole mobilities and spin deviations exhibit a distinct temperature-dependent relationship. …”
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Journal Article -
424
A two-dimensional co-rotational Timoshenko beam element with XFEM formulation
Published 2014“…Pin connections and plastic hinges produce non-smooth displacement fields in beam structures. …”
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Journal Article -
425
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426
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427
Study of heat transfer through micro-structured surfaces
Published 2016“…Each chip has a different microstructure in the form of very small and elongated pin-fins, which will in turn affect the critical heat flux of each component. …”
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Final Year Project (FYP) -
428
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429
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430
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431
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432
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433
Orbital stability in a classical pilot-wave system
Published 2024“…We then consider the effect of weak external forces on spin states, circular orbits arising in the absence of external forces, and show that the destabilisation of spin states depends in a complex manner on the type of external force applied. …”
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Thesis -
434
Valley-optical absorption in planar transition metal dichalcogenide superlattices
Published 2023“…By calculating the effective mass for different bands and using the Drude-Lorentz model, our approach is able to determine the oscillator strength and the effective refractive index of the structure. We found that the spin-orbit coupling has important effect on the absorption coefficient and energy bands where it reduces the absorption coefficient of the structure from typical value of [Formula: see text]-[Formula: see text], also the valence band experiences a significant blue shift, while the conduction band shows minor changes due to spin orbit coupling. …”
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Journal Article -
435
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436
High field dynamic nuclear polarization methods: Microwave sources and mechanisms
Published 2024“…In this thesis, I argue that this approach is not necessarily optimal and report progress towards arbitrary-waveform DNP, in the construction of a suitable solid-state microwave source, and the use of narrow-line monoradicals exploiting the Overhauser effect. …”
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Thesis -
437
Nonreciprocal phenomena in superconductivity
Published 2024“…Spin polarons have large effective mass and are spin 3/2 quasiparticles. …”
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Thesis -
438
Design of wideband low-loss reconfigurable reflectarray antenna
Published 2024“…It proposes an RRA design that integrates a PIN diode with air gap. The switch of the reconfigurable unit is directly mounted on the reflective element, reducing the loss introduced by the switching device. …”
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Thesis-Master by Coursework -
439
Development of optical transceiver
Published 2010“…For PIN photodiodes, the epitaxial layer was introduced to the structures to act as an intrinsic layer. …”
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Final Year Project (FYP) -
440