Abstract.
A general approach of second-harmonic generation (SHG) studies for surface phase transitions (PTs) is presented, with a thermodynamic classification of surface PTs and their relation to SHG parameters. The symmetry aspects of SHG near a surface PT are discussed, including issues connected with separation of surface and bulk contributions and the role of atomic and mesoscopic inhomogeneities. This approach is illustrated by applying it to two systems revealing a (near-) surface PT: single-crystalline SrTiO3 near a bulk structural PT and single-crystalline Au in an electrochemical cell revealing an order–disorder and a reconstructive PT.
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Received: 15 January 2002 / Published online: 11 June 2002
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Mishina, E., Morosov, A., Yu, QK. et al. Nonlinear optics for surface phase transitions . Appl Phys B 74, 765–775 (2002). https://doi.org/10.1007/s00340-002-0922-8
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DOI: https://doi.org/10.1007/s00340-002-0922-8