3 papers
physics.app-ph2020
Polar nano-clusters in nominally paraelectric ceramics demonstrating high microwave tunability for wireless communication
Hangfeng Zhang, Henry Giddens, Yajun Yue +7
Dielectric materials, with high tunability at microwave frequencies, are key components in the design of microwave communication systems. Dense Ba0.6Sr0.4TiO3 (BST) ceramics, with…
cond-mat.str-el2018
Topological thermal Hall effect driven by fluctuation of spin chirality in frustrated antiferromagnets
Yalei Lu, Xing Guo, Vladimir Koval +1
By revealing an underlying relation between the Dzyaloshinskii-Moriya interaction (DMI) and the scalar spin chirality, we develop the theory of magnon thermal Hall effects in antif…
cond-mat.mtrl-sci2018
The origin of grain size effects in Ba(Ti0.96Sn0.04)O3 perovskite ceramics with superior electrical properties
Yongqiang Tan, Giuseppe Viola, Vladimir Koval +7
The study of grain size effects in ferroelectric ceramics has attracted great research interest over the last 50 years. Although different theoretical models have been proposed to…