Faculty

KUOK Meng Hau

PhD, University of Canterbury, NZ (1978)

Professor
Office : S12-03-12  |  Tel : (65) 6516 2609
Email : phykmh@nus.edu.sg

Current Research

  • Spin dynamics and acoustic dynamics of nanostructures;
  • Magnon/phonon dispersion in magphonic, magnonic, and phononic nanostructured crystals;
  • spin wave nonreciprocity; Magnetic Skyrmions;
  • Brillouin light scattering.

Direct observation of the Dzyaloshinskii-Moriya interaction in an ultrathin Pt/Co/Ni film. Stokes and anti-Stokes Brillouin spectra measured at a fixed incident angle θ = 45º under oppositely-oriented external magnetic fields H0 = 97 mT/U0. Inset: Schematic of the Cartesian coordinate system and 180° back-scattering geometry. The incident and scattered light beams lie in the x-y plane and are at an angle θ to the y-axis. The magnon wave vector is denoted by k.

Selected Publications

  1. V.L. Zhang, C.G. Hou, K. Di, H.S. Lim, S.C. Ng, M.H. Kuok, S.D. Pollard, and H. Yang, “Eigenmodes of Néel skyrmions in ultrathin magnetic films”, arXiv e-print (1612.06622).

  2. K. Di, V.L. Zhang, H.S. Lim, S.C. Ng, M.H. Kuok, J. Yu, J. Yoon, X. Qiu, and H. Yang, “Direct observation of the Dzyaloshinskii-Moriya interaction in a Pt/Co/ Ni film”, Phys. Rev. Lett. 114, 047201 (2015).

  3. K. Di, V.L. Zhang, M.H. Kuok, H.S. Lim, S.C. Ng, K. Narayanapillai, and Hyunsoo Yang, “Band structure of magnonic crystals with defects: Brillouin spectroscopy and micromagnetic simulations”, Phys. Rev. B 90, 060405(R) (2014).

  4. C.G. Hou, V.L. Zhang, H.S. Lim, S.C. Ng, M.H. Kuok, J. Deng, and S.J. Wang, “Band structures of surface acoustic waves in nanostructured phononic crystals with defects”, Appl. Phys. Lett. 105, 243104 (2014).

  5. M.H. Kuok, H.S. Lim, S.C. Ng, N.N. Liu, and Z.K. Wang, “Brillouin study of the quantization of acoustic modes in nanospheres”, Phys. Rev. Lett. 90, 255502 (2003). Featured as article entitled “Music of the Spheres” in Physical Review Focus, Vol. 11 (2003).

Affiliations & Links