首页> 外文期刊>Physical review >Synchrotron X-ray Scattering Evidence For Interlayer Structural Coupling In (pbmg_(1/3)nb_(2/3)o_3)_((1-x)Λ))/(pbtio_3)_(xΛ) Superlattices
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Synchrotron X-ray Scattering Evidence For Interlayer Structural Coupling In (pbmg_(1/3)nb_(2/3)o_3)_((1-x)Λ))/(pbtio_3)_(xΛ) Superlattices

机译:(pbmg_(1/3)nb_(2/3)o_3)_((1-x)Λ))/(pbtio_3)_(xΛ)超晶格内层间结构耦合的同步X射线散射证据

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摘要

We present evidence for in-plane coupling in relaxor PbMg_(1/3)Nb_(2/3)O_3 / ferroelectric PbTiO_3 superlattices [PMN_((1-x)Λ))/PT_(xΛ)]_(10). For constant superlattice wavelength Λ=d_(PMN)+d_(PT), we find that by varying the constituents thicknesses d_(PMN) and d_(PT) a significant effect is observed on the internal a_1/a_2 domain structure of the PT layers as well as on the appearance of domains in PMN. Since the strain effects on the structural patterns can be modulated by adjusting x, this is one way to control the polarization axis on a nanoscale level.
机译:我们提出了弛豫器PbMg_(1/3)Nb_(2/3)O_3 /铁电PbTiO_3超晶格[PMN _((1-x)Λ))/ PT_(xΛ)] _(10)中平面内耦合的证据。对于恒定的超晶格波长Λ= d_(PMN)+ d_(PT),我们发现通过改变成分厚度d_(PMN)和d_(PT),可以观察到对PT层内部a_1 / a_2畴结构的显着影响以及PMN中域的外观。由于可以通过调节x来调节应变对结构图案的影响,因此这是在纳米级水平上控制偏振轴的一种方法。

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