期刊
PHYSICAL REVIEW LETTERS
卷 109, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.065702
关键词
-
资金
- U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division
- National Academy of Sciences of Ukraine
- Oak Ridge National Laboratory by Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy
Vacancy-ordered transition metal oxides have multiple similarities to classical ferroic systems including ferroelectrics and ferroelastics. The expansion coefficients for corresponding Ginzburg-Landau-type free energies are readily accessible from bulk phase diagrams. Here, we demonstrate that the gradient and interfacial terms can quantitatively be determined from the atomically resolved scanning transmission electron microscopy data of the topological defects and interfaces in model lanthanum-strontium cobaltite. With this knowledge, the interplay between ordering, chemical composition, and mechanical effects at domain walls, interfaces and structural defects can be analyzed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据