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261
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 -
262
Hand motion detection
Published 2011“…The author will study into their technologies and compare both technologies and selection of it to include it into the author’s group project, Virtual Pink Dolphin. The hand motion detection should be able to identify hand motion done by the autism kids who was the main targeted market. …”
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Final Year Project (FYP) -
263
Structure and dynamics of magnetic domain walls in multi-sublattice magnetic oxides
Published 2024“…Spintronics is a study that lies at the intersection of magnetics and electronics, which makes use of the electron spin in solid-state devices for data storage and manipulation. …”
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Thesis -
264
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 -
265
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 -
266
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 -
267
Nonreciprocal phenomena in superconductivity
Published 2024“…Spin polarons have large effective mass and are spin 3/2 quasiparticles. …”
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Thesis -
268
Psychoacoustic model compensation for robust speaker verification in environmental noise
Published 2013“…The first database is the TIMIT database corrupted with white and pink noise and the noise estimation is fairly easy in this case. …”
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Journal Article -
269
Speech enhancement using auditory-based spectral amplitude estimators
Published 2013“…The original speech signal is subjected to three types of noises, namely, white noise, pink noise and cockpit noise. The proposed estimator is applied to the noisy speech signal to obtain the enhanced speech signal and the objective measures of speech quality such as the segmental SNR (SNRseg) and the log-likelihood-ratio (LLR) are obtained. …”
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Thesis -
270
Ferromagnetic interlayer coupling in FeSe1−xSx superconductors revealed by inelastic neutron scattering
Published 2024“…The weak interlayer coupling is estimated to be Jc∼ 0.2 meV, in agreement with the short spin-spin correlation length ζc∼0.2c along the c axis. …”
Journal article -
271
Semiconductor oxide for gas sensing applications
Published 2010“…Surface morphology of the spin-coated composite films was studied using SEM. …”
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Final Year Project (FYP) -
272
Compositional dependence of spintronic properties in Pt/GdCo films
Published 2024“…We find a 5× increase in effective spin Hall angle with increasing Gd concentration, suggesting an improvement in spin transfer efficiency in rare earth materials. …”
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Article -
273
Constructing adversarial samples against deep learning-based sensing system (part II)
Published 2020“…While previous work in defending again these malicious attacks has investigated using gradient masking to hide information of the model and audio pre-processing to reduce or distort adversarial noise, this project explores the idea of simple pink noise injection at different loudness to detect adversarial examples. …”
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Final Year Project (FYP) -
274
SU(3) topological insulators in the honeycomb lattice
Published 2019“…We investigate realizations of topological insulators with spin-1 bosons loaded in a honeycomb optical lattice and subjected to a SU ( 3 ) spin-orbit coupling—a situation which can be realized experimentally using cold atomic gases. …”
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Journal Article -
275
Optimizing earbud microphone performance through the use of digital filter
Published 2022“…There exists a technique often used in live acoustic tuning of spaces like rooms and halls: To play Pink Noise, which is noise that has equal energy in every octave, and flatten frequency response. …”
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Final Year Project (FYP) -
276
Interplay of Transition Metals and Noncovalent Interactions in C–H Activation Catalysis
Published 2024“…Additionally, the ability of TMCs to exist in multiple spin states is often leveraged for practical applications, with one such example being spin crossover (SCO) complexes that exhibit a change in spin state as a function of external stimulus like temperature and are widely studied due to their increasing use in molecular switches. …”
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Thesis -
277
Searches for Gravitational Waves from Known Pulsars at Two Harmonics in the Second and Third LIGO-Virgo Observing Runs
Published 2024“…For nine pulsars, their spin-down limits have been surpassed for the first time. …”
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Article -
278
Experimental Characterization of Iron-Sulfur Cluster Excited States and their Relevance to Electron Transfer Reactions
Published 2024“…The ground states for these systems have been extensively studied for several decades, and are understood to be the products of a confluence of super-exchange and spin-dependent electron delocalization interactions. …”
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Thesis -
279
Persuasive evidence for electron-nuclear coupling in diluted magnetic colloidal nanoplatelets using optically detected magnetic resonance spectroscopy
Published 2020“…The incorporation of magnetic impurities into semiconductor nanocrystals with size confinement promotes enhanced spin exchange interaction between photogenerated carriers and the guest spins. …”
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Journal Article -
280
Direct measurement of magnetic monopole charge and transport dynamics
Published 2024“…<p>Magnetic monopoles are magnetic excitations with quantized magnetic charge whose existence in pyrochlore spin ice materials has been studied widely. As a platform to study the hypothetical magnetic monopoles, classical spin ices have aroused fundamental interest. …”
Thesis