期刊
PHYSICAL REVIEW LETTERS
卷 96, 期 5, 页码 -出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.96.055508
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We grew SrTiO3 on SrTiO3(001) by pulsed laser deposition, using x-ray scattering to monitor the growth in real time. The time-resolved small-angle scattering exhibits a well-defined length scale associated with the spacing between unit-cell high surface features. This length scale imposes a discrete spectrum of Fourier components and rate constants upon the diffusion equation solution, evident in multiple exponential relaxation of the anti-Bragg diffracted intensity. An Arrhenius analysis of measured rate constants confirms that they originate from a single activation energy.
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