Journal of Applied Physics
Articles in this Issue
Revealing space-charge capacitance in multi-layer dielectrics with Sb2O3/MoS2/SiO2
Antimony trioxide (Sb2O3) has recently attracted attention as a top-gate dielectric for two-dimensional transition metal dichalcogenide materials due to its high permittivity and van der Waals gap, wh...
Estimation of electron mobility in the hollow cathode plume of a Hall effect thruster with different electrical configurations
In the paper, we assess the effects of electrical configuration on the plasma properties in the near-field hollow cathode discharge that is center mounted on a Hall effect thruster. The axial profile...
Unraveling cavity-like modes of two-dimensional broad band hyperbolic metamaterial and their coupling to quantum emitters
Hyperbolic metamaterials (HMMs) are artificially engineered materials that exhibit hyperbolic dispersion of light propagating through them. These have been extensively studied for tailoring the propag...
High-quality epitaxial growth of ferroelectric Al0.9Sc0.1N on GaN by pulsed laser deposition
In this study, high-quality wurtzite Al0.9Sc0.1N thin films were grown on GaN templates via pulsed laser deposition (PLD). The influence of in situ thermal pretreatment of the substrate, growth temper...
Enhancement of thermoelectric properties through alloying in two-dimensional halide materials
Two-dimensional (2D) copper halides represent an emerging class of semiconductors with tunable electronic and optical properties, yet their structural stability and alloying behavior remain largely un...
Injection of orbital angular momentum into transition metals from first principles
We use quantum mechanical scattering calculations implemented in a basis of tight-binding muffin-tin orbitals to calculate nonequilibrium spin and orbital currents in transition metals with a view to...
The influence of atmospheric pressure plasma jet on oxidative termination of diamond surface
This study investigates the effects of atmospheric pressure plasma jet on diamond surface functionalization, which is key for plasma-assisted polishing. By varying plasma parameters including voltage...
Sub-bandgap-light-assisted capacitance–voltage study of gap states near valence band maximums at AlSiO/GaN interfaces with and without an AlN interfacial layer
Gap states at AlSiO/GaN interfaces with and without an AlN interfacial layer (IL) have been investigated by the sub-bandgap-light-assisted capacitance–voltage (C–V) method. The thickness of the crysta...
Structural and magnetic properties of quad-interface ferromagnetic multilayers for magnetic tunnel junction free layers
The performance of the free layer in a magnetic tunnel junction (MTJ) is critical for optimizing magnetic random access memory devices. In this study, we systematically investigate a quad-interface fr...
Investigation on the electroluminescence 2D microscopic localization intensity distribution of GaN-based flip-chip green mini-LEDs
Based on time-gated electroluminescence, a method to characterize the localized intensity distribution (LID) of flip-chip green mini-LEDs is proposed. Through the integration of RC circuit theory and...
Diffraction ringing induced terahertz image edge enhancement
In traditional optics, diffraction ringing induced by a finite system aperture is often treated as an artifact requiring suppression. In this work, we experimentally demonstrate that diffraction ringi...
Thermal coupling analysis of an embedded bismuth reservoir—C12A7 hollow cathode
The unique configuration of an embedded bismuth hollow cathode leads to a strong coupling between its discharge parameters and both internal temperatures and the mass flow rates. To elucidate this the...
Special topic: Transformative frontiers in additive manufacturing
Auxetic effect and magnetocrystalline anisotropy of square-lattice transition metal dihalide monolayers
The structural, mechanical, and magnetic properties of square-lattice 3d transition metal dihalide monolayers MX2 have been systematically investigated via crystal structure analysis by particle swarm...
Programmable multiple ion beams based on a magneto-optical trap ion source
We report a programmable multiple ion beam system developed by combing a magneto-optical trap ion source with a spatial light modulator (SLM). Neutral rubidium atoms are trapped into a magneto-optical...
Decoupling sublattice dynamics in low-dose neutron-irradiated 4H-SiC via two-component density functional theory guided positron annihilation spectroscopy
Silicon carbide (SiC) is a premier candidate for nuclear applications, yet characterizing the nascent damage from low-dose neutron irradiation remains a challenge due to the complex behavior of its tw...
Extending the exquisite control of molecular beam epitaxy to the other dimensions: Nanostructure engineering
Molecular beam epitaxy (MBE) is a widely used tool for growing nanostructures and thin films, offering precise control and a near defect-free growth environment. While state-of-the-art MBE-grown mater...
Comprehensive determination of Burgers vectors of threading dislocations in GaN substrates by combining reflection and transmission synchrotron-radiation x-ray topography
Burgers vectors (b) of threading dislocations (TDs) in an acidic ammonothermal-grown GaN substrate were investigated using synchrotron radiation x-ray topography (SR-XRT) by combining both reflection...
<i>In situ</i> characterization of microstrip line using near-field scanning microwave microscopy
With the continuous scaling and increasing operating frequencies of microwave integrated circuits, accurate characterization of on-chip microwave signal propagation and field distributions has become...
Surface height modulation in strain relaxation and its smoothing using solid state crystallization in InAs quantum-well growth on GaAs
Relaxation of lattice-mismatch strain in the epitaxial growth of InAs quantum-well structures on GaAs substrates produces height modulations on the surface. The surface meandering is known as the cros...
A brief pedagogic review of frequency-dependent Johnson Nyquist noise
We present a pedagogical and self-contained derivation of Johnson–Nyquist formula that relates the voltage fluctuations due to the thermal noise to the impedance in linear electrical circuits using li...
A comprehensive study on the line profiles and Stark widths of ionic transitions from laser-produced aluminum plasma
We present a systematic spectroscopic investigation of laser-produced aluminum plasma to address inconsistencies in Stark broadening parameters and establish a self-consistent reference data sets for...
Electronic transport and thermoelectric performance in quasiperiodic Fibonacci bilayer graphene superlattices
We investigate the electronic transport and thermoelectric performance of Fibonacci bilayer graphene superlattices (FBGSLs) and compare them systematically with their periodic counterparts. The study,...
<i>Ab initio</i> description of de Haas–van Alphen oscillation using relativistic magnetic-Bloch-states
The ab initio description of the de Haas–van Alphen (dHvA) oscillation has been recognized as one of long-standing goals in material science. Here, we demonstrate that the dHvA oscillation can be desc...
Frequency-sweep force volume AFM-IR: Decoupling infrared mapping from mechanical properties
Infrared nano-spectroscopy by atomic force microscopy-infrared (AFM-IR) couples an atomic force microscope (AFM) to tunable infrared (IR) laser radiation to perform infrared signature mapping of compl...