论文标题
ADATOM在各向同性和其他底物上生成空间振荡的应变场
Adatom generated spatially oscillating strain fields on isotropic and other substrates
论文作者
论文摘要
用于ADATOM相互作用的扩展弹性特征向量方法应用于弹性各向同性底物。 Adatom单体或二聚体之间的振荡相互作用是由底物中的应变场引起的。膨胀或承包应变场是准圆环的形式周围的ADATOM。环结构的确切形状取决于底物的弹性常数，尤其是表面布里渊区。描述了各向同性底物上的相互作用，并将其与各向异性示例进行了比较。 2-D图的叠加可以有助于鉴定由弹性效应引起的ADATOM结构，并准备其弹性能量的数值计算。勾勒出具有不同相互作用符号的不同类型的ADATOM的后果，在这种情况下可能会发生很大的短距离吸引力。讨论了该方法的局限性并制定了可能的应用。
An extended elastic eigenvector approach for adatom interactions is applied to elastically isotropic substrates. The oscillating interactions between adatom monomers or dimers are caused by strain fields in the substrate. Expansive or contractive strain fields are surrounding adatoms in form of quasi circular rings. The exact shape of the ring structure depends on the elastic constants of the substrate and especially on the surface Brillouin zone. Interactions on isotropic substrates are depicted and compared with an anisotropic example. Overlays of 2-D plots can help to identify adatom structures caused by elastic effects and to prepare numerical calculations of their elastic energies. The consequences of different sorts of adatoms with different interaction sign are sketched, large short distance attraction could occur in such cases. Limitations of the method are discussed and possible applications are formulated.
