activity
20172025
most citedHidden area and mechanical nonlinearities in freestanding graphene

86 citations · 109 across the 7 of their papers we have counts for

collaborators

8 papers

physics.app-ph2025

Injection locking of GHz-frequency surface acoustic wave phononic crystal oscillator

Zichen Xi, Hsuan-Hao Lu, Jun Ji +4

Low-noise gigahertz (GHz) frequencies sources are essential for applications in signal processing, sensing, and telecommunications. Surface acoustic wave (SAW) resonator-based osci…

physics.optics2025★ 6 cited

Room-temperature mid-infrared detection using metasurface-absorber-integrated phononic crystal oscillator

Zichen Xi, Zengyu Cen, Dongyao Wang +9

Mid-infrared (MIR) detectors find extensive applications in chemical sensing, spectroscopy, communications, biomedical diagnosis and space explorations. Alternative to semiconducto…

cond-mat.mes-hall2025

Enhancing Electrical Properties of Selectively Grown In-Plane InAs Nanowires using InGaAs Buffer and Capping Layers

Pradip Adhikari, Anjali Rathore, Dayrl P Briggs +2

In-plane semiconductor nanowires with complex branched geometries, prepared via selective area growth (SAG), offer a versatile platform for advanced electronics, optoelectronics, a…

physics.app-ph2024

Frequency-domain Parallel Computing Using Single On-Chip Nonlinear Acoustic-wave Device

Jun Ji, Zichen Xi, Bernadeta R. Srijanto +4

Multiply-accumulation (MAC) is a crucial computing operation in signal processing, numerical simulations, and machine learning. This work presents a scalable, programmable, frequen…

physics.app-ph2024★ 14 cited

Low-phase-noise surface-acoustic-wave oscillator using an edge mode of a phononic band gap

Zichen Xi, Joseph G. Thomas, Jun Ji +7

Low-phase-noise microwave-frequency integrated oscillators provide compact solutions for various applications in signal processing, communications, and sensing. Surface acoustic wa…

cond-mat.supr-con2024★ 3 cited

Solid-State Reactions at Niobium-Germanium Interfaces in Hybrid Superconductor-Semiconductor Devices

Bernardo Langa, Deepak Sapkota, Ivan Lainez +8

Hybrid Superconductor-Semiconductor (S-Sm) materials systems are promising candidates for quantum computing applications. Their integration into superconducting electronics has ena…