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Beta Detected NMR of LaAlO3

Conference Paper


Abstract


  • Using 8Li β-NMR we studied the temperature dependence of the spin–lattice relaxation in LaAlO3 in high magnetic field. The relaxation in LAO is composed of two components: a fast-relaxing signal with a small amplitude, and a large amplitude, slow relaxing component. The data was fit using a highly-constrained model which assumes that the temperature dependence of the slow and fast component is the same at all temperatures. The 8Li relaxation suggests a T2 temperature dependence, indicating that the relaxation mechanism could be due to a coupling between the quadrupole moment of 8Li and the soft-mode, low energy phonons in LAO.

UOW Authors


  •   Karner, V L. (external author)
  •   Mcfadden, R M. L. (external author)
  •   Chatzichristos, Aris (external author)
  •   Morris, G D. (external author)
  •   Pearson, M R. (external author)
  •   Levy, C D. P. (external author)
  •   Salman, Z (external author)
  •   Cortie, David
  •   Kiefl, R F. (external author)
  •   Macfarlane, W A. (external author)

Publication Date


  • 2018

Citation


  • Karner, V. L., McFadden, R. M. L., Chatzichristos, A., Morris, G. D., Pearson, M. R., Levy, C., Salman, Z., Cortie, D. L., Kiefl, R. F. & MacFarlane, W. (2018). Beta Detected NMR of LaAlO3. Proceedings of the 14th International Conference on Muon Spin Rotation, Relaxation and Resonance (μSR2017) (pp. 011023-1-011023-6). Tokyo, Japan: The Physical Society of Japan.

Start Page


  • 011023-1

End Page


  • 011023-6

Place Of Publication


  • Tokyo, Japan

Abstract


  • Using 8Li β-NMR we studied the temperature dependence of the spin–lattice relaxation in LaAlO3 in high magnetic field. The relaxation in LAO is composed of two components: a fast-relaxing signal with a small amplitude, and a large amplitude, slow relaxing component. The data was fit using a highly-constrained model which assumes that the temperature dependence of the slow and fast component is the same at all temperatures. The 8Li relaxation suggests a T2 temperature dependence, indicating that the relaxation mechanism could be due to a coupling between the quadrupole moment of 8Li and the soft-mode, low energy phonons in LAO.

UOW Authors


  •   Karner, V L. (external author)
  •   Mcfadden, R M. L. (external author)
  •   Chatzichristos, Aris (external author)
  •   Morris, G D. (external author)
  •   Pearson, M R. (external author)
  •   Levy, C D. P. (external author)
  •   Salman, Z (external author)
  •   Cortie, David
  •   Kiefl, R F. (external author)
  •   Macfarlane, W A. (external author)

Publication Date


  • 2018

Citation


  • Karner, V. L., McFadden, R. M. L., Chatzichristos, A., Morris, G. D., Pearson, M. R., Levy, C., Salman, Z., Cortie, D. L., Kiefl, R. F. & MacFarlane, W. (2018). Beta Detected NMR of LaAlO3. Proceedings of the 14th International Conference on Muon Spin Rotation, Relaxation and Resonance (μSR2017) (pp. 011023-1-011023-6). Tokyo, Japan: The Physical Society of Japan.

Start Page


  • 011023-1

End Page


  • 011023-6

Place Of Publication


  • Tokyo, Japan