Near-Surface Structural Phase Transition ofSrTiO3Studied with Zero-Fieldβ-Detected Nuclear Spin Relaxation and Resonance
| Autor: | Kim H. Chow, S. R. Kreitzman, M. D. Hossain, Zaher Salman, M. Smadella, M. R. Pearson, R. F. Kiefl, W. A. MacFarlane, D. Wang, T. J. Parolin, J. D. Schultz, C. D. P. Levy, R. I. Miller, H. Saadaoui, T. A. Keeler |
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| Rok vydání: | 2006 |
| Předmět: |
Surface (mathematics)
Structural phase Materials science Condensed matter physics Relaxation (NMR) General Physics and Astronomy Resonance 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences 3. Good health Tetragonal crystal system Beta (plasma physics) 0103 physical sciences 010306 general physics 0210 nano-technology Nuclear quadrupole resonance Single crystal |
| Zdroj: | Physical Review Letters. 96 |
| ISSN: | 1079-7114 0031-9007 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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