Applied Physics Letters
Articles in this Issue
Theoretical investigation of performance-improved ferroelectric tunnel junction based on trap-assisted tunneling
CMOS-compatible HfO2-based ferroelectric tunnel junction (FTJ) has attracted significant attention as a promising candidate for in-memory computing (IMC) due to its extremely low power consumption. Ho...
Active noise reduction in gated quantum devices
Solid-state quantum technologies such as quantum dot qubits and quantum electrical metrology circuits rely on ultra-low energy quantum phenomena, making them susceptible to various forms of environmen...
Microscopic origin of metal–insulator transition in two-dimensional Bi2O2Se unraveled by first-principles simulations
It has been experimentally observed that Bi2O2Se—a semiconductor with nominally metallic conductivity—can undergo a metal–insulator transition (MIT), yet its microscopic origin remains unclear. Our hy...
Superconducting readout of current-induced magnetization switching
We demonstrate a superconducting readout method for detecting current-induced magnetization switching of a polycrystalline cobalt wire, based on the measurement of the critical current of an adjacent...
Cross-modal neuromorphic computing in GdFeCo devices by spin–orbit torque induced field-free magnetization switching
Field-free spin–orbit torque (SOT)-driven perpendicular magnetization switching presents a highly promising pathway for neuromorphic computing applications. In this study, field-free SOT switching is...
Soft phonon mode as the origin of the reduced thermal conductivity in Ta-based trirutiles
Ta-based trirutiles of the series ATa2O6 (A = Ni, Co) reportedly present suppressed thermal conductivity (κ) values compared to their Sb-based counterparts. Particularly, the κ values at room temperat...
Large elastic anisotropy in Brillouin scattering of copper-intercalated GaS and GaSe
Brillouin scattering of bulk layered hexagonal gallium sulfide (GaS) and gallium selenide (GaSe) was measured both as pristine materials and intercalated with copper and silver. The sound velocities,...
Long-range structural anisotropy governs macroscopic chiroptical response in twisted anodic aluminum oxide membranes
We report twist-angle-dependent circular dichroism (CD) in bilayer anodic aluminum oxide (AAO) membranes separated to avoid near-field coupling. While local pore arrangements exhibit sixfold (C6) symm...
Electrical and magneto-transport properties of GdPdBi half-Heusler thin films
We report the electrical and magneto-transport properties of [110]-oriented equiatomic GdPdBi thin films grown by pulsed laser deposition. Temperature-dependent resistivity measurements over the tempe...
Enhancing the energy density of CNO compounds through distorted carbon tetrahedra
Carbon, nitrogen, and oxygen compounds have attracted considerable interest due to their ability to store and release energy through variations in bond strength. However, identifying the stable stoich...
Thin Ga2O3 insertion layer for phase structure and electrical property evolutions in ferroelectric Hf0.5Zr0.5O2 capacitors
In this study, gallium oxide (Ga2O3) insertion layers (ILs) of varying thicknesses were embedded within Hf0.5Zr0.5O2 (HZO) films using atomic layer deposition (ALD). Devices with Ga2O3 ILs grown for f...
Quantized topological transport mediated by the long-range couplings
Certain topological systems with time-varying Hamiltonian enable quantized and disorder-robust transport of excitations. Here, we introduce the modification of the celebrated Thouless pump when the on...
Efficient spin transport across a disordered interface in a low damping magnetic insulator/heavy metal bilayer
We demonstrate efficient spin transfer across a disordered interfacial layer that forms in low damping ferrimagnetic insulator lithium aluminum ferrite (LAFO) and tantalum bilayers. Despite the interf...
Temperature-induced absolute energy shift of the electronic spectrum in HgTe nanocrystals
Mercury telluride (HgTe) nanocrystals (NCs) are promising materials for infrared photodetection due to their size-tunable band edges and compatibility with colloidal synthesis. While optical studies h...
Correlation between microstructural changes and phonon shifts in O−-implanted FeS2 thin films
This work systematically studies microstructural modifications in FeS2 thin films induced by low-energy oxygen implantation at different fluences. Crystallite size was determined from x-ray diffractio...
Spontaneous generation of athermal phonon bursts within bulk silicon causing excess noise, low energy background events, and quasiparticle poisoning in superconducting sensors
Solid state phonon detectors used in the search for dark matter and coherent neutrino nucleus interactions (CE ν NS) require excellent energy resolution (eV-scale or below) and low backgrounds. An unk...
Predicting anode coatings for solid-state lithium metal batteries via first-principles thermodynamic calculations and hierarchical ion-transport algorithms
Solid-state lithium metal batteries (SSLMBs) are promising for next-generation energy storage devices due to their superior energy density and excellent safety. Among solid-state electrolytes, garnet-...
Molecular engineering of PEDOT:PSS for enhancing open-circuit voltage in organic/silicon heterojunction solar cells
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/silicon (Si) heterojunction solar cells (HSCs) have garnered extensive interest owing to their potential for high efficiency and low...
Uniaxial strain-induced giant Raman enhancement in few-layer γ-InSe
InSe is a promising two-dimensional van der Waals semiconductor, exhibiting exceptional plasticity in its bulk single-crystalline form. This notable mechanical behavior originates from interlayer glid...
Periodic micro/nanostructures on few-layer PtSe2 irradiated by femtosecond laser pulses
We report on laser-induced periodic surface structures (LIPSS) on few-layer platinum diselenide (PtSe2) with a thickness of ∼5 nm, which has been realized by femtosecond laser pulse irradiation. Both...
Ultrafast voltage-induced switching enabled by coupling dynamics in perpendicular magnetic tunnel junction
Ultrafast magnetization switching is essential for spintronic applications, yet the switching speed of current-driven approaches such as spin-transfer torque and spin–orbit torque is fundamentally lim...
Multimode nanobeam photonic crystal cavities for Purcell enhanced quantum dot emission
Epitaxial III–V semiconductor quantum dots (QDs) integrated with nanophotonic structures are promising on-demand sources of indistinguishable single photons for quantum photonic circuits. Close proxim...
Injection locking and coupling dynamics in superconducting nanowire-based cryogenic oscillators
Oscillators designed to function at cryogenic temperatures play a critical role in superconducting electronics and quantum computing by providing stable, low-noise signals with minimal energy loss. He...
Insight into discharge mode transition in spatially confined pulsed bubbles-plasma system
Bubbles plasma (BP) has emerged as a promising technology for enhancing gas–liquid mass transfer through plasma–liquid interactions, with potential applications in water purification, biomedicine, and...
Ultrafast carrier dynamics of indirect bandgap exciton and band-nesting excitons in mechanically exfoliated <b> <i>α</i> </b> -In2Se3 flakes
Although α-In2Se3 is theoretically predicted to exhibit an indirect bandgap semiconductor, its experimental optoelectronic response resembles that of a direct bandgap material. To provide a possible e...