Near-surface structural phase transition of SrTiO3 studied with zero-field beta-detected nuclear spin relaxation and resonance |
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| Authors: | Salman Z Kiefl R F Chow K H Hossain M D Keeler T A Kreitzman S R Levy C D P Miller R I Parolin T J Pearson M R Saadaoui H Schultz J D Smadella M Wang D MacFarlane W A |
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| Affiliation: | TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada. |
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| Abstract: | We demonstrate that zero-field beta-detected nuclear quadrupole resonance and spin relaxation of low energy (8)Li can be used as a sensitive local probe of structural phase transitions near a surface. We find that the transition near the surface of a SrTiO(3) single crystal occurs at T(c) approximately 150K, i.e., approximately 45K higher than T(c)bulk, and that the tetragonal domains formed below T(c) are randomly oriented. |
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