Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Hock Siah Lim"'
Autor:
Vanessa Li Zhang, Chen Guang Hou, Kai Di, Hock Siah Lim, Ser Choon Ng, Shawn David Pollard, Hyunsoo Yang, Meng Hau Kuok
Publikováno v:
AIP Advances, Vol 7, Iss 5, Pp 055212-055212-7 (2017)
The static and dynamic states of Néel skyrmions in ultrathin ferromagnetic films with interfacial Dzyaloshinskii-Moriya interaction (DMI) have been micromagnetically simulated as functions of the interfacial DMI strength and applied static magnet
Externí odkaz:
https://doaj.org/article/1df4ab19de1b4b7eaeb0c8a4d3a8823c
Autor:
Zhikui Wang, Fusheng Ma, Meng Hau Kuok, S. N. Piramanayagam, Ser Choon Ng, Hock Siah Lim, V. L. Zhang
Publikováno v:
Nanoscience and Nanotechnology Letters. 4:663-666
We present the results of micromagnetic study of magnonic band structures for exchange spin waves propagating in two-dimensional magnonic crystal waveguides. The studied waveguides are in the form of a regular square lattice array of square dots of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d01d5851a728c0f07cd3627d3a177846
https://doi.org/10.1166/nnl.2012.1364
https://doi.org/10.1166/nnl.2012.1364
Publikováno v:
IEEE Transactions on Magnetics. 47:2689-2692
We report a micromagnetic investigation of the propagation of spin waves in bi-component magnonic crystal waveguides. The investigated nanostructured waveguides are in the form of regular square lattice arrays of circular Fe dots embedded in a yttriu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b14f770489d0a46de7897e2a987c2f5
https://doi.org/10.1109/tmag.2011.2156767
https://doi.org/10.1109/tmag.2011.2156767
Autor:
A. O. Adeyeye, Meng Hau Kuok, V. L. Zhang, Ser Choon Ng, Shikha Jain, Hock Siah Lim, Zhikui Wang
Publikováno v:
Journal of Nanoscience and Nanotechnology. 11:2657-2660
Most experimental investigations into magnonic bandgaps are based on structures composed of single-constituent magnetic materials. Here we report Brillouin and numerical studies of the spin dynamics of a bi-component magnonic crystal, viz. a one-dime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f666837652e6d7b20e5026fbb0334d2
https://doi.org/10.1166/jnn.2011.2730
https://doi.org/10.1166/jnn.2011.2730
Autor:
Zhikui Wang, Hock Siah Lim, Xianmao Lu, Ser Choon Ng, Meng Hau Kuok, Toan Trong Tran, Jing Ya Sun
Publikováno v:
ACS Nano. 4:7692-7698
The intriguing optical and catalytic properties of metal-silica core-shell nanoparticles, inherited from their plasmonic metallic cores together with the rich surface chemistry and increased stability offered by their silica shells, have enabled a wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::187632cfa62ed9c0d49b0e6342454e3c
https://doi.org/10.1021/nn102581g
https://doi.org/10.1021/nn102581g
Publikováno v:
Carbon. 46:2133-2136
The low-frequency acoustic dynamics of multilayer graphene flakes, on SiO 2 /Si substrate, have been studied by polarized Brillouin light scattering. Interference enhancement affords the first observation of both the in-plane longitudinal and transve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edf1e165ddedf78eda9d626ec4f16a7b
https://doi.org/10.1016/j.carbon.2008.09.028
https://doi.org/10.1016/j.carbon.2008.09.028
Publikováno v:
Journal of Nanoscience and Nanotechnology. 8:5869-5872
The localized acoustic modes of single isolated polymethyl methacrylate (PMMA) and polystyrene nanospheres have been studied by micro-Brillouin light scattering. The measured mode frequencies are analyzed on the basis of the Lamb theory formulated fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96fa18ebfe697f4dc0dc4f8d7187e357
https://doi.org/10.1166/jnn.2008.18365
https://doi.org/10.1166/jnn.2008.18365
Autor:
C.G. Tan, Navab Singh, Sarjoosing Goolaup, A. O. Adeyeye, Hock Siah Lim, Zhikui Wang, Ser Choon Ng, Meng Hau Kuok
Publikováno v:
Journal of Magnetism and Magnetic Materials. 320:475-478
Regular arrays of oval-shaped permalloy nanorings have been fabricated using deep ultraviolet lithography and their spin dynamics measured by Brillouin light scattering with the magnetic field applied along long (easy) axes of the rings. The dispersi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45bb9ffa7e20e4b42aaefce4dda1032c
https://doi.org/10.1016/j.jmmm.2007.07.012
https://doi.org/10.1016/j.jmmm.2007.07.012
Autor:
S. X. Feng, Hock Siah Lim, V. L. Zhang, Meng Hau Kuok, Kai Di, Ser Choon Ng, S. N. Piramanayagam
Publikováno v:
Scientific Reports
Spin-wave nonreciprocity arising from dipole-dipole interaction is insignificant for magnon wavelengths in the sub-100 nm range. Our micromagnetic simulations reveal that for the nanoscale magnonic crystals studied, such nonreciprocity can be greatly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31fd10af410d7231c467b818095f8723
http://europepmc.org/articles/PMC4423564
http://europepmc.org/articles/PMC4423564
Autor:
Kai Di, Xuepeng Qiu, Meng Hau Kuok, V. L. Zhang, Jiawei Yu, Jungbum Yoon, Ser Choon Ng, Hock Siah Lim, Hyunsoo Yang
Publikováno v:
Physical Review Letters. 114
The interfacial Dzyaloshinskii-Moriya interaction (DMI) in an in-plane anisotropic Pt(4nm)/Co(1.6nm)/Ni(1.6nm) film has been directly observed by Brillouin spectroscopy. It is manifested in the asymmetry of the measured magnon dispersion relation, fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::215c83f3e46f0d522ce2e8b2c0ae3473
https://doi.org/10.1103/physrevlett.114.047201
https://doi.org/10.1103/physrevlett.114.047201