Morphology evolution of primary Mg2Si in Ca-modified Al-Mg2Si alloy with various contents of Mg\Si

CrystEngComm ◽  
2021 ◽  
Author(s):  
Hong–Chen Yu ◽  
Yu-Zhuo Men ◽  
Shu-Guo Yang ◽  
Hui Liu ◽  
Lei Yu ◽  
...  

Combined influence of the Mg\Si and Ca contents on crystallization of primary Mg2Si in Al-Mg2Si alloy is investigated. Embryos formation of primary Mg2Si can be restricted by the addition of...

CrystEngComm ◽  
2017 ◽  
Vol 19 (12) ◽  
pp. 1680-1688 ◽  
Author(s):  
Hui-Yuan Wang ◽  
Hong-Chen Yu ◽  
Chao Li ◽  
Min Zha ◽  
Cheng Wang ◽  
...  

2021 ◽  
Vol 11 ◽  
pp. 448-465
Author(s):  
Hamidreza Ghandvar ◽  
Kadhim A. Jabbar ◽  
Mohd Hasbullah Idris ◽  
Norhayati Ahmad ◽  
Muhammad Hafiz Jahare ◽  
...  
Keyword(s):  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jie Yin ◽  
Hongxiang Zong ◽  
Hong Tao ◽  
Xuefei Tao ◽  
Haijun Wu ◽  
...  

AbstractMultitudinous topological configurations spawn oases of many physical properties and phenomena in condensed-matter physics. Nano-sized ferroelectric bubble domains with various polar topologies (e.g., vortices, skyrmions) achieved in ferroelectric films present great potential for valuable physical properties. However, experimentally manipulating bubble domains has remained elusive especially in the bulk form. Here, in any bulk material, we achieve self-confined bubble domains with multiple polar topologies in bulk Bi0.5Na0.5TiO3 ferroelectrics, especially skyrmions, as validated by direct Z-contrast imaging. This phenomenon is driven by the interplay of bulk, elastic and electrostatic energies of coexisting modulated phases with strong and weak spontaneous polarizations. We demonstrate reversable and tip-voltage magnitude/time-dependent donut-like domain morphology evolution towards continuously and reversibly modulated high-density nonvolatile ferroelectric memories.


2021 ◽  
Vol 115 ◽  
pp. 106586
Author(s):  
C.V. Mary Vijila ◽  
K. Rajeev Kumar ◽  
M.K. Jayaraj
Keyword(s):  

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