首页> 外文会议>NATO Advanced Study Research Workshop on Symmetry and Heterogeneity in High Temperature Superconductors; 20031004-10; Erice(IT) >STRUCTURAL SYMMETRY, ELASTIC COMPATIBILITY, AND THE INTRINSIC HETEROGENEITY OF COMPLEX OXIDES
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STRUCTURAL SYMMETRY, ELASTIC COMPATIBILITY, AND THE INTRINSIC HETEROGENEITY OF COMPLEX OXIDES

机译:复杂氧化物的结构对称性,弹性相容性和内在异质性

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摘要

Intrinsic heterogeneity, from nano- to meso- scales, of lattice/charge/spin variables, is common in complex oxides such as cuprates and manganites, that have strain-based ferroelastic transitions. We summarize our viewpoint that the central player is the power-law, anisotropic, strain-strain force that lies concealed in the apparently innocuous St. Venant compatibility constraint, namely the maintenance of lattice integrity, under strain texturing induced by charges and spins, that act as 'local stresses' and 'local transition temperatures'.
机译:晶格/电荷/自旋变量的内在异质性(从纳米到中尺度)在具有基于应变的铁弹性转变的复杂氧化物(如铜酸盐和锰酸盐)中很常见。我们总结了以下观点:中心角色是幂律,各向异性,应变-应变力,该力隐藏在看似无害的St. Venant相容性约束中,即在由电荷和自旋引起的应变纹理化下保持晶格完整性,即充当“局部应力”和“局部转变温度”。

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