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881
Unveiling the chirality of the quantum anomalous Hall effect
Published 2024“…By lδz, we find that the chiral flow-direction of an electron in the QAHE is not explicitly related to the intrinsic spin axis, thereby enabling the spin-momentum-unlocking edge states in an antiferromagnetic QAHE system. …”
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Journal Article -
882
Synthesis and characterization of reduced graphene oxide-based composites
Published 2012“…The conductive rGO films are fabricated by reduction of spin-coated GO films. By varying the solution volume in the spin-coating process, the film thickness can be adjusted and hence the film transmittance and sheet resistance can be controlled. …”
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Thesis -
883
Characterization of copper chemical mechanical polishing induced defects
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Thesis -
884
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885
Magnetic levitation using neodymium magnets for vertical axis wind turbine (VAWT) II
Published 2012“…This project involved the design and fabrication of a test model vertical axis wind turbine, however as this experiment was carried out indoor without any wind condition, the author used a dc motor to simulate the wind required to spin the turbine. The advantage of this motor allows the author some control over the speed of the turbine. …”
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Final Year Project (FYP) -
886
Singlet fission in organic crystals : ultrafast spectroscopic study
Published 2014“…Singlet fission (SF) is a spin-allowed process in which one singlet excited molecule shares its energy with an adjacent molecule in the ground state, both molecules forming a pair of triplet states. …”
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Thesis -
887
Analysis of Λ b 0 → pK − μ + μ − decays
Published 2024“…The data are consistent with receiving contributions from a mixture of Λ resonances with different spin-parity quantum numbers. The angular coefficients show a pattern of vector-axial vector interference that is a characteristic of the type of flavour-changing neutral-current transition relevant for these decays.…”
Journal article -
888
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889
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890
Conformable ultrasound breast patch for deep tissue scanning and imaging
Published 2024“…The in vitro studies and clinical trials reveal that the array using a piezoelectric crystal [Yb/Bi-Pb(In <jats:sub>1</jats:sub> <jats:sub>/2</jats:sub> Nb <jats:sub>1/2</jats:sub> )O <jats:sub>3</jats:sub> -Pb(Mg <jats:sub>1/</jats:sub> <jats:sub>3</jats:sub> Nb <jats:sub>2/3</jats:sub> )O <jats:sub>3</jats:sub> -PbTiO <jats:sub>3</jats:sub> ] (Yb/Bi-PIN-PMN-PT) exhibits a sufficient contrast resolution (~3 dB) and axial/lateral resolutions of 0.25/1.0 mm at 30 mm depth, allowing the observation of small cysts (~0.3 cm) in the breast. …”
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Article -
891
Piezoelectric single crystal based one-dimensional phased array for breast tissue imaging
Published 2024“…In this thesis, I propose a conformable ultrasound breast patch (cUSBr-Patch) consisting of a one-dimensional (1D) phased array and a nature-inspired patch design, which offers large-area, deep tissue scanning and multi-angle, repeatable breast imaging while avoiding the drawbacks of conventional ultrasound imaging technologies. I used a Yb/Bi-doped PIN-PMN-PT single crystal as the active element due to its superior piezoelectric properties (d33 = 2,800 pC/N, εr = 7,000, k33 = 0.93). …”
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Thesis -
892
Two-phase immersion cooling for power dense printed circuit board converters
Published 2024“…A theoretical model and numerical solution method for boiling on pin fins is developed and used to design heat spreaders to increase the power dissipation per unit semiconductor area with minimal penalty on the converter volume. …”
Thesis -
893
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894
Error measurements for a quantum annealer using the one-dimensional Ising model with twisted boundaries
Published 2023“…A finite length ferromagnetic chain with opposite spin polarization imposed at its two ends is one of the simplest frustrated spin models. …”
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Journal Article -
895
Aspectual classification of mandarin Chinese verbs : a perspective of scale structure
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Journal Article -
896
Arsenene nanoribbon edge-resolved strong magnetism
Published 2020“…Consistency between bond-order-length-strength correlation (BOLS) theory and density functional theory (DFT) calculations verified that: (i) the edge bond contraction of 9.54% deepened the edge potential well of AsNR, (ii) a net charge of 0.06 e- transferred from the inner region to the edge; and (iii) the edge quantum well polarized the unpaired electron and the net spin (antiferromagnetic or ferromagnetic depending on the width) is localized at the zigzag edge. …”
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Journal Article -
897
Advanced photovoltaic concepts for perovskite solar cells
Published 2022“…In this paper, PCBM, PEDOT:PSS, as well as MAPbI3 are used as materials for the fabrication processes In this thesis, various methods would be discussed and spin coating process will be focused on. The paper continues with the analysis of the connection between the number of spins for the hole transport layer (HTL) and electron transport layer (ETL) deposition process, as well as the impact on the efficiency of the PV device.…”
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Final Year Project (FYP) -
898
Neutron emission studies from miniature and medium size plasma focus device
Published 2010“…Although dense plasma focus devices have attracted the attention of scientific community since 1960’s as a copious source of fusion neutrons but in the recent years owing to spin-off in the applications of compact and portable table top neutron sources in wider domain, like noninvasive interrogation of explosives and narcotic drugs (by using Pulsed Fast/Thermal Neutron Analysis (PFTNA) technique), dark matter research, radioisotope production, medical neutron therapy and soil humidity measurements, there has been renewed interest across the globe for the development of sub-kilojoule range, low energy small plasma focus device (hereafter called ‘Miniature Plasma Focus i.e. …”
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Research Report -
899
Synthesis, characterization and terahertz study of metal oxides
Published 2013“…The interplays among various orderings of the spin, charge and orbital degrees of freedom in a broad spectrum of crystalline structures produce a number forms of symmetry-breaking patterns of spatial inversion, time-reversal and gauge symmetries, leading to exciting emergent phenomena in strongly-correlated electron systems and promising a variety of potential applications. …”
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Thesis -
900
Learning stock market dynamics using the kinetic ising model
Published 2017“…In this approach, the states in the time series data are represented by configurations of N spins, and the time evolution of these states in the time series data by an update rule that depends on the spin configuration {σ_i (t)}_(i=1,…,N), and the connection weights {W_ij }_(i,j=1,…N) between the spins. …”
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Final Year Project (FYP)