Search Results - "Kuok, M. H."

Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling by Di, K., Feng, S. X., Piramanayagam, S. N., Zhang, V. L., Lim, H. S., Ng, S. C., Kuok, M. H.

“…Spin-wave nonreciprocity arising from dipole-dipole interaction is insignificant for magnon wavelengths in the sub-100 nm range. Our micromagnetic simulations…”
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Spin-wave quantization in ferromagnetic nickel nanowires by Wang, Z K, Kuok, M H, Ng, S C, Lockwood, D J, Cottam, M G, Nielsch, K, Wehrspohn, R B, Gösele, U

“…The dynamical properties of uniform two-dimensional arrays of nickel nanowires have been investigated by inelastic light scattering. Multiple spin waves are…”
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Spin waves in nickel nanorings of large aspect ratio by WANG, Z. K, LIM, H. S, KEAY, J. C, LIAN, G. D, JOHNSON, M. B, LIU, H. Y, NG, S. C, KUOK, M. H, TAY, L. L, LOCKWOOD, D. J, COTTAM, M. G, HOBBS, K. L, LARSON, P. R

“…The spin dynamics of high-aspect-ratio nickel nanorings in a longitudinal magnetic field have been investigated by Brillouin spectroscopy and the results are…”
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Spin-wave dispersion of nanostructured magnonic crystals with periodic defects by Zhang, V. L., Lim, H. S., Ng, S. C., Kuok, M. H., Zhou, X., Adeyeye, A. O.

“…The spin-wave dispersions in nanostructured magnonic crystals with periodic defects have been mapped by Brillouin light scattering. The otherwise perfect…”
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Brillouin study of the quantization of acoustic modes in nanospheres by Kuok, M H, Lim, H S, Ng, S C, Liu, N N, Wang, Z K

“…The vibrational modes in three-dimensional ordered arrays of unembedded SiO2 nanospheres have been studied by Brillouin light scattering. Multiple distinct…”
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Brillouin scattering study of low-frequency bulk acoustic phonons in multilayer graphene by Wang, Z.K., Lim, H.S., Ng, S.C., Özyilmaz, B., Kuok, M.H.

“…The low-frequency acoustic dynamics of multilayer graphene flakes, on SiO 2/Si substrate, have been studied by polarized Brillouin light scattering…”
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Observation of frequency band gaps in a one-dimensional nanostructured magnonic crystal by Wang, Z. K., Zhang, V. L., Lim, H. S., Ng, S. C., Kuok, M. H., Jain, S., Adeyeye, A. O.

“…We report the experimental observation of band gaps in a synthetic nanostructured magnonic crystal composed of two different magnetic materials. The sample, in…”
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Micromagnetic study of spin wave propagation in bicomponent magnonic crystal waveguides by Ma, F. S., Lim, H. S., Wang, Z. K., Piramanayagam, S. N., Ng, S. C., Kuok, M. H.

“…The propagation of spin waves in bicomponent magnonic crystal waveguides has been investigated by micromagnetic simulations. The nanostructured waveguides…”
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Quantization of spin waves in oval-shaped nanorings by Tan, C.G., Lim, H.S., Wang, Z.K., Ng, S.C., Kuok, M.H., Goolaup, S., Adeyeye, A.O., Singh, N.

“…Regular arrays of oval-shaped permalloy nanorings have been fabricated using deep ultraviolet lithography and their spin dynamics measured by Brillouin light…”
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Spin waves in permalloy nanowires: The importance of easy-plane anisotropy by Nguyen, T. M., Cottam, M. G., Liu, H. Y., Wang, Z. K., Ng, S. C., Kuok, M. H., Lockwood, D. J., Nielsch, K., Gösele, U.

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Comment on "Physical origin and generic control of magnonic band gaps of dipole-exchange spin waves in width-modulated nanostrip waveguides" by Di, K, Lim, H S, Zhang, V L, Kuok, M H, Ng, S C, Cottam, M G, Nguyen, H T

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Band structures of surface acoustic waves in nanostructured phononic crystals with defects by Hou, C. G., Zhang, V. L., Lim, H. S., Ng, S. C., Kuok, M. H., Deng, J., Wang, S. J.

“…The band structures of surface acoustic waves in nanostructured phononic crystals with defects have been studied by Brillouin light scattering and…”
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Band gap parameters of one-dimensional bicomponent nanostructured magnonic crystals by Lin, C. S., Lim, H. S., Wang, Z. K., Ng, S. C., Kuok, M. H.

“…We investigate theoretically the lowest-frequency spin waves in one-dimensional periodic arrays of alternating cobalt and permalloy nanostripes to analyze…”
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High-pressure Raman study and pressure-induced phase transitions of sodium niobate NaNbO3 by Shen, Z. X., Wang, X. B., Tang, S. H., Kuok, M. H., Malekfar, R.

“…Raman spectroscopic studies have been carried out on antiferroelectric sodium niobate NaNbO3 under pressures up to 22 GPa. The Raman spectra show a rich…”
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Phononic dispersion of a two-dimensional chessboard-patterned bicomponent array on a substrate by Zhang, V. L., Hou, C. G., Pan, H. H., Ma, F. S., Kuok, M. H., Lim, H. S., Ng, S. C., Cottam, M. G., Jamali, M., Yang, H.

“…Brillouin measurements of the dispersion relations of surface acoustic- and optical-like waves along Gamma -M and Gamma -X symmetry directions in a…”
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Dispersion and origin of surface optical-like waves in a two-dimensional antidot-patterned structure with a soft intervening layer by Hou, C. G., Zhang, V. L., Ng, S. C., Kuok, M. H., Lim, H. S., Liu, X. M., Adeyeye, A. O.

“…The phonon dispersion of a square-lattice antidot-patterned Ni80Fe20 film on a bottom-anti-reflective coating (BARC)/Si substrate has been investigated by…”
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Electronic properties of CsSnBr3: studies by experiment and theory by Zheng, Jin-Cheng, Huan, C. H. A., Wee, A. T. S., Kuok, M. H.

“…In this paper, the band structure of cubic and tetragonal phases of CsSnBr3 has been investigated by temperature‐dependent UPS and XPS in conjunction with ab…”
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Light scattering from spin wave excitations in a Co/CoPt exchange spring by Crew, D.C., Stamps, R.L., Liu, H.Y., Wang, Z.K., Kuok, M.H., Ng, S.C., Barmak, K., Kim, J., Lewis, L.H.

“…We have developed a theory of Brillouin light scattering (BLS) from spin wave excitations in non-collinear magnetisation structures. We compare the results of…”
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Bandgap Parameters of Dipolar-Dominated Bicomponent Magnonic Crystals by Lin, C. S., Lim, H. S., Wang, Z. K., Ng, S. C., Kuok, M. H.

“…Employing numerical calculations and our recently developed analytical approach, we calculate the lowest bandgaps in one-dimensional magnonic crystals…”
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Hypersonic confined eigenvibrations of gold nano-octahedra by Pan, H. H., Wang, Z. K., Lim, H. S., Ng, S. C., Zhang, V. L., Kuok, M. H., Tran, T. T., Lu, X. M.

“…The size-dependence of the vibrational mode frequencies of octahedron-shaped gold nanocrystals has been measured by micro-Brillouin spectroscopy. A finite…”
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