Year: 2025
Type: article
Abstract: The field emission current in a vacuum (IT=αE2/eβ/E, where α and β are constants) depends on the electric field strength E. In other words, the differential resistance (dIT/dV)−1 in a vacuum does not follow Ohm’s law. Therefore, the relationship governing the capacitance and current between two electrodes in a vacuum is an intriguing research topic. In this study, we constructed an interface structure in which contact areas and non-contact vacuum areas coexisted by adhering two Si wafers and measuring the capacitance characteristics of this structure. A volatile capacitance appeared at the interface, with the contact areas contributing to positive capacitance and the vacuum areas contributing to negative capacitance. The tunneling current passing through the interface played an important role in the formation of the negative capacitance.
Source: Crystals
Authors: Hikaru Yasunaga, Kota Yano, Yuki Tanioka, Sota Fujimoto, Shigeru Kanemitsu, Yong Sun
Institutions: Kyushu Institute of Technology, Shandong University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,534
Awards: G6256234201, 小型核磁気共鳴測定用容量型アンテナに関する研究
OpenAlex ID: W4414097296