Category: 4. Physics

To examine our argument, we begin by analyzing the working mechanism for a semiconductor phototransistor/diode. This kind of device is the most commonly used photodetector, It mainly contains a semiconductor (e.g., p-n or p-i-n) junction⁷ (It…

The schematics of the device used in the experiment is shown in Fig. 1a. Electrostatic gates deplete the two-dimensional hole gas beneath, creating a double quantum dot (DQD) on the bottom part of the device to be operated as a qubit. A single…

Theoretical analyses of energy storage performance and self-healing mechanism

To evaluate the effectiveness of the DNP design in enhancing energy storage performance, we first conducted phase-field simulations to examine the dielectric breakdown…

Materials

The nanoparticles evaluated in this study are novel magnetite(Fe₃O₄)-based, methoxy-PEG-coated SPIONs²⁸. PEG-SPIONs (mPEG PrecisionMRX) were sourced commercially and received in aqueous solutions with elemental iron concentrations…

Interpretable mode decomposition

The fish-like robot (Fig. 1a and detailed in the “Methods” section) is inspired by boxfish (Ostracion cubicum) in nature. Its density is slightly less than one so that almost the entire body is submerged below…

Design and characterization of the coupled resonators

The proposed coupled micromechanical resonators system (Fig. 1a) was constructed with two double-ended-tuning-fork (DETF) resonators connected via a mechanical disc coupler anchored at the…

Crystal structure and complex magnetic phase diagram of Fe₃Ga₄

Our target material crystallises in a centrosymmetric structure shown in Fig. 1b with the monoclinic unit cell (C2/m, a = 10.0966(5) Å, b = 7.6650(4)…

Analysis of the adsorption/desorption curves

The experimental results showed that the adsorption and desorption curves do not overlap, with the desorption curve lying above the adsorption curve. This phenomenon can be attributed to the hysteresis…

Characterization of the nanobolometer

In our experiment, we first sweep the probe frequency from f_p = 510 to 530 MHz to identify the resonance frequency of the thermometer (Fig. 1b). At the minimum probe power, P_p = −140 dBm defined at…

Local polarization measurements

As illustrated in the top panel of Fig. 1a, III-nitride semiconductors exhibit a wurtzite ground state structure, featuring with an in-plane lattice a for the basal hexagon, an out-of-plane lattice c for the…