Publications by authors named "Jibo Xu"
Article Synopsis
- * Researchers have developed an amorphous hafnium-based oxide that offers an impressive energy density of about 155 J/cm³ and an efficiency of 87%, which sets a new standard in capacitive energy storage materials.
- * The unique amorphous structure results from instability between different crystalline forms, leading to enhanced breakdown strength and permissivity, ultimately improving energy storage performance and presenting new opportunities in material design.
Ferroelectric tunnel junctions (FTJs) are promising candidates for next-generation memories due to fast read/write speeds and low-power consumptions. Here, we investigate resistance fatigue of FTJs, which is performed on Pt/BaTiO/Nb:SrTiO devices. By direct observations of the 5–unit cell–thick BaTiO barrier with high-angle annular dark-field imaging and electron energy loss spectroscopy, oxygen vacancies are found to aggregate at the Pt/BaTiO interface during repetitive switching, leading to a ferroelectric dead layer preventing domain nucleation and growth.
View Article and Find Full Text PDF[Impact of ideal health behaviors and factors on the newly developed carotid plaques].
Zhonghua Xin Xue Guan Bing Za Zhi
September 2015
Objective: To explore the impact of ideal health behaviors on the newly developed carotid plaques.
Methods: A total of 5 852 employees (including retired employees from Tangshan Kailuan company) aged over 40 years were included in this study through stratified random sampling. Subjects with previous stroke, transient ischemic attack, myocardial infarction were excluded.