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landar » bandar (Expand Search), landau (Expand Search), kandar (Expand Search)
handar » thandar (Expand Search), bandar (Expand Search), kandar (Expand Search)
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21
Electronic structures of twisted two-dimensional materials studied by angle-resolved photoemission spectroscopy
Published 2021“…We only observe the Γ-valley moiré bands but not the proposed K-valley moiré band. In addition, we have unambiguously identified the real-space honeycomb- and kagome-shaped charge distributions at the moiré length scale, which are associated with Γ-valley moiré bands. …”
Thesis -
22
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23
Wannier-function software ecosystem for materials simulations
Published 2024“…Wannier functions can be obtained for isolated or extended systems (both crystalline and disordered) and can be used to understand chemical bonding; to characterize electric polarization, magnetization, and topology; and as an optimal basis set, providing accurate interpolations in reciprocal space or large-scale Hamiltonians in real space. …”
Journal article -
24
Near-IR and mid-IR (1.55 μm – 2 μm) silicon photonics devices on silicon-on-insulator (SOI) platform
Published 2018“…Furthermore, the mid-infrared (MIR, 2-15 μm) band is also very crucial as many gases and molecules have unique absorption fingerprints in this regime. …”
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Thesis -
25
Dynamic Expansion and Merging of the Equatorial Ionization Anomaly During the 10–11 May 2024 Super Geomagnetic Storm
Published 2024“…The EIA crests were notably suppressed and merged into a single equatorial band, which can be attributed to the composition change effect and the influence of disturbance dynamo electric fields. …”
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26
Cloud detection and attenuation modelling in tropical region
Published 2018“…Cloud plays a significant role in both the ground-to-space radio communication system and climate system of Earth. …”
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Thesis -
27
The bright side and dark side of hybrid organic–inorganic perovskites
Published 2020“…The previously developed bistable amphoteric native defect (BAND) model is used for a comprehensive explanation of the unique photophysical properties and for understanding the remarkable performance of perovskites as photovoltaic materials. …”
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Journal Article -
28
Broadband surface-wave transformation cloak
Published 2015“…A partial realization has been achieved by exploiting topological electromagnetic surface states, but this approach is limited to narrow-band light transmission and subject to phase disturbances in the presence of disorder. …”
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Journal Article -
29
Optical properties of ultrathin metal oxide and metal films : effect of free electrons, quantum confinement and localized surface plasmon resonance
Published 2016“…The comparison study of the free electrons between the undoped ZnO and AZO shows that free electrons could greatly suppress the excitonic absorption near the band edge and result in an expansion of band gap due to the free electrons effect. …”
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Thesis -
30
Search of the early O3 LIGO data for continuous gravitational waves from the Cassiopeia A and Vela Jr. supernova remnants
Published 2024“…No gravitational wave signal is detected in the search band of 20--976 Hz for assumed source ages greater than 300 years for Cas A and greater than 700 years for Vela Jr. …”
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31
Radiometer Calibration Using Colocated GPS Radio Occultation Measurements
Published 2017“…We describe a validation platform for this calibration method, the Microwave Radiometer Technology Acceleration (MiRaTA) CubeSat, currently in development for the National Aeronautics and Space Administration (NASA) Earth Science Technology Office. …”
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32
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33
End-fire surface wave antenna with metasurface coating
Published 2018“…Good radiation pattern and high gain are achieved over a wide frequency band.…”
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Journal Article -
34
Role of ex-situ HfO2 passivation to improve device performance and suppress X-ray-induced degradation characteristics of in-situ Si3N4/AlN/GaN MIS-HEMTs
Published 2025“…Furthermore, due to the generation of chemical vacancies under X-ray, a band tail near the edge of valence band maximum in Si3N4 and HfO2 films can be created. …”
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Journal Article -
35
Thin 3-D bandpass frequency-selective structure based on folded substrate for conformal radome applications
Published 2021“…The structure thickness is only 0.06λ , where λ is the free-space wavelength at the center frequency of the passband. …”
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Journal Article -
36
Fabrication and application of novel highly ordered nano-heterostructure arrays in optoelectronics
Published 2016“…Meanwhile, Ag2S with a narrow band gap enables more efficient absorption of incident light and faster separation of photogenerated electron-hole pairs. …”
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Thesis -
37
Strong electron–phonon coupling in magic-angle twisted bilayer graphene
Published 2024“…These replicas show uniform energy spacing, approximately 150 ± 15 meV apart, indicative of strong electron–boson coupling. …”
Journal article -
38
Higher-order Dirac semimetal in a photonic crystal
Published 2022“…Numerical results on the band structure show that the designed three-dimensional photonic crystal is able to host two fourfold Dirac points, which are connected in the momentum-space projections via higher-order hinge states localized at the hinge. …”
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Journal Article -
39
TEM image simulation of silicon carbide using multislice technique
Published 2013“…CTF plot is consider optimal when it remains almost constant close to -1, it indicates broad band of good transmittance. The intensity graph is plotted to determine the optimal thickness of crystal sample for HRTEM image. …”
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Final Year Project (FYP) -
40
Experimental observation of optical Weyl points and Fermi arc-like surface states
Published 2018“…Weyl fermions are hypothetical two-component massless relativistic particles in three-dimensional (3D) space, proposed by Hermann Weyl in 1929. Their band-crossing points, called ‘Weyl points’, carry a topological charge and are therefore highly robust. …”
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Journal Article