Metal-insulator transition-induced electrical oscillation in vanadium dioxide thin film

Autor:	Byung-Gyu Chae, Hyun-Tak Kim, Yong Wook Lee, Bong-Jun Kim, Gyoungock Kim, Sun Jin Yun, Sungyoul Choi, Jungwook Lim
Rok vydání:	2008
Předmět:	Materials science Physics and Astronomy (miscellaneous) business.industry Oscillation law.invention law Optoelectronics Condensed Matter::Strongly Correlated Electrons Strongly correlated material Voltage source Resistor Thin film Metal–insulator transition business Electronic circuit Voltage
Zdroj:	Applied Physics Letters. 92:162903
ISSN:	1077-3118 0003-6951
Popis:	In this letter, we report an observation of room temperature electrical oscillation in vanadium dioxide (VO2), a representative strongly correlated material showing a metal-insulator transition. An electric circuit for the oscillation is simply composed of a voltage source and two-terminal VO2 thin film device serially connected with a standard resistor. The systematic procedures where the oscillation occurred were explained based on the electrical relationship between the VO2 device and resistor, and the generation window of the oscillation was determined. In particular, the oscillation frequency could be controlled by adjusting an external voltage and increased up to >0.5MHz.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::73cb0eed807dbedd7e34395ffaab3f63 https://doi.org/10.1063/1.2911745 Zobrazit plný text záznamu