Observation of a near-surface structural phase transition in SrTiO3 by optical second harmonic generation |
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| Authors: | Mishina Misuryaev Sherstyuk Lemanov Morozov Sigov Rasing |
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| Institution: | Moscow Institute of Radioengineering, Electronics and Automation, Moscow 117454, Russia. |
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| Abstract: | A near-surface structural phase transition on a SrTiO3 single crystal, occurring at T(*) about 45 K above the bulk cubic-to-tetragonal transition, is observed by means of optical second harmonic generation. The temperature dependence of the second harmonic field in the vicinity of T(*) is described with a phenomenological Landau-type model. |
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