Chen Ge

Aug 31, 2024 | mdpi.com | Chen Ge |Xiaoliang Chen |Yongfan Gong |Xijun Kong

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.

Apr 8, 2024 | nature.com | Xinyan Li |Qinghua Zhang |Hai Zhong |Fanqi Meng |Ting Lin |Shiyu Wang | +3 more

AbstractRobust ferroelectricity in nanoscale fluorite oxide-based thin films enables promising applications in silicon-compatible non-volatile memories and logic devices. However, the polar orthorhombic (O) phase of fluorite oxides is a metastable phase that is prone to transforming into the ground-state non-polar monoclinic (M) phase, leading to macroscopic ferroelectric degradation.

Mar 13, 2024 | mdpi.com | Renyi Li |Chen Ge |Chenwei Liang |Shichang Zhong

1. IntroductionFifth-generation communication technology (5G) adopts sophisticated modulation techniques such as QAM (quadrature amplitude modulation) and OFDM (orthogonal frequency division multiplexing), resulting in a high peak-to-average power ratio (PAPR) in its signal waveform [1,2]. Doherty power amplifiers can maintain high efficiency both in saturation and power back-off, making them suitable for handling 5G communication signals [3].

Mar 12, 2024 | nature.com | Ting Lin |Ningning Wang |Shengru Chen |Qiao Jin |Lin Gu |Chen Ge | +5 more

AbstractRecent progress on the signatures of pressure-induced high-temperature superconductivity in Ruddlesden–Popper (RP) nickelates (Lan+1NinO3n+1) has attracted growing interest in both theoretical calculations and experimental efforts. The fabrication of high-quality single-crystalline RP nickelate thin films is critical for possible reducing the superconducting transition pressure and advancing applications in microelectronics in the future.

Mar 12, 2024 | nature.com | Ting Lin |Ningning Wang |Shengru Chen |Qiao Jin |Lin Gu |Chen Ge | +5 more

AbstractRecent progress on the signatures of pressure-induced high-temperature superconductivity in Ruddlesden–Popper (RP) nickelates (Lan+1NinO3n+1) has attracted growing interest in both theoretical calculations and experimental efforts. The fabrication of high-quality single-crystalline RP nickelate thin films is critical for possible reducing the superconducting transition pressure and advancing applications in microelectronics in the future.