Publications
Journal Papers:
• Effects of temperature, in-situ magnetic field deposition post deposition magnetic annealing on Ni 80 Fe 20 /Fe 50 Mn 50 /Ni 80 Fe 20 /Al 2 O 3 /Co and Ni 80 Fe 20 /Al 2 O 3 /Co magnetic tunnel junctions, F H Chen and V Ng , IEEE Trans Mag, , Volume: 41 , Issue: 1 , Pages:116 - 121 Jan. 2005
• Germanium diffusion and nanocrystal formation in silicon oxide on silicon substrate under rapid thermal annealing, Choi, W K, V Ho, V Ng , Y W Ho, S P Ng and W K Chim, Applied Physics Letters, April 2005
• Transition from coherent rotation to curling mode reversal process in ferromagnetic nanowires, Goolaup, S, N Singh , A O Adeyeye, V Ng and M B A Jalil, European Journal of Physics (2005): 259-264.
• Study of scattering events in embedded magnetic nanostructures, Verma, L K and V Ng , Thin Solid Films, accepted for publication.
• The effects of interlayer on magnetoresistance and exchange coupling in magnetic tunnel junctions, JF Hu, V Ng , JP Wang, TC Chong, Journal of Magnetism and Magnetic Materials, 268, Issues 1-2, 114-122 (2004).
• Planar hall effect and magnetoresistance in Co/Cu multilayer films, A O Adeyeye, M T Win, T A Tan, G S Chong, V Ng and T S Low, Sensors and Actuators A, 116, no.1 (2004): 95-102
• Effects of in-situ magnetic field application and post deposition magnetic annealing on sputtered Fe 50 Mn 50 /Ni 80 Fe 20 bilayers, V Ng , F H Chen and A O Adeyeye, Journal of Magnetism and Magnetic Materials 260, 1, 53-59, (2003).
• Effects of in-situ magnetic field application and post deposition magnetic annealing on sputtered Ni 80 Fe 20 /Fe 50 Mn 50 /Ni 80 Fe 20 trilayers, F H Chen, V Ng , and A O Adeyeye, Journal of Applied Physics, 93,10, 6605 (2003).
• Observation of memory effect in germanium nanocrystals embedded in an amorphous silicon oxide matrix of a metal-insulator-semiconductor structure. Choi, W K, W K Chim, C Heng, L W Teo, V Ho, V Ng , D A Antoniadis and E A Fitzgerald, Applied Physics Letters, 80, 11 (18 March 2002): 2014-2016. ( United States ).
• Control of the tilled orientation of CoCrPt/ti thin film media by collimated sputtering. Zheng, Y F, J P Wang and V Ng , Journal of Applied Physics, Pt. 3, 91, no. 10 ( 15 May 2002 ): 8007-8009. ( United States ).
• Magnetization reversal analysis for antiferromagnetic-coupled films with magnetic field angle dependance. Ren, H B, J P Wang and V Ng , Journal of Applied Physics, Pt. 3, 91, no. 10 ( 15 May 2002 ): 8623-8625. ( United States ).
• Effects of Dy doping on magnetic and reversal properties of recording media. Ren, H B, J P Wang, Z S Shan, S Malhotra , G Bertero and V Ng , Journal of Applied Physics, Pt. 2, 91, no. 10 ( 15 May 2002 ): 7092-7094. ( United States ).
• Factors affecting surface roughness and coercivity of Ni 80 Fe 20 thin films, V Ng , J F Hu, A O Adeyeye, J P Wang and T C Chong. Journal of Applied Physics, Pt. 2, 91, no. 10 ( 15 May 2002 ): 7206-7208. ( United States ).
• Radio frequency substrate bias effect on properties of Ni 80 Fe 20 thin film and multilayer structures, V Ng , JF Hu, AO Adeyeye, JP Wang and TC Chong, Journal of Magnetism and Magnetic Materials, 247, no.3 (11 June 2002): 339-344. (The Netherlands ).
• Properties and applications of cobalt-based Material produced by electron-beam-induced deposition, Lau YM, Chee PC, Thong JTL, V Ng , J Vac Sci Technol A 20 (4): 1295-1302 Jul-Aug 2002
• Magnetic properties of lithographically defined lateral Co/Ni 80 Fe 20 wires. Adeyeye, A O, M K Husain and V Ng, Journal of Magnetism and Magnetic Materials, 248, no. 3 (August 2002): 355-359. (The Netherlands ).
• Nanostructure array fabrication with temperature-controlled self assembly techniques, V Ng , Y V Lee, B T Chen and A O Adeyeye, Nanotechnology, 13, no. 5 (2002): 554-558. ( United Kingdom ).
• Microstructural and photoluminescence studies of germanium nanocrystals in amorphous silicon oxide films, WK Choi, YW Ho, SP Ng, V Ng, Journal of Applied Physics, 89, 4, p. 2168, 2001.
• Factors affecting Ge nanocrystal size in co-sputtered Ge+SiO2 films, Choi, W K, V Ng , YW Ho, TP Chen and V Ho, Materials Research Society Symposium Proceedings, 638 (1 April 2001): F14.1.1-F14.1.6.
• Investigation of Ge nanocrystal formation in SiO2-Ge-SiO2 sandwich structure, WK Choi, V Ng, VSL Swee, CS Ong, MB Yu, Rusli, Scripta Materialia, 44, p. 1873, 2001
• Characterization of Ge nanocrystals in co-sputtered Ge+SiO2 system using Raman spectroscopy, RBS and TEM, YW Ho, V Ng, WK Choi, SP Ng, T Osipowicz, HL Seng, WW Tjui, K Li, Scripta Materialia, 44, p. 1291, 2001
• Raman and photolumescence characterization of Ge nanocrystals in co-sputtered Ge+SiO2 system, WK Choi, V Ng , YW Ho, SP Ng, TB Chen, MB Yu, Materials Science and Engineering C: Biomimetic Materials, Sensors and Systems, 16, 1-2, p135, 2001
• Effect of size of Ge nanocrystal embedded in Si02 on Raman spectra. Choi, W K, Y W Ho and V Ng , Materials Physics and Mechanics , 4 (2001): 46-50. ( Russia ).
• Effect of laser on formation of Ge nanocrystal embedded in Si02. Ho, V, W K Choi, C Heng and V Ng , Materials Physics and Mechanics, 4 (2001): 42-45. ( Russia ).
• Synthesizing germanium nanocrystals in amorphous silicon oxide by rapid thermal annealing; WK Choi, HH Thio, SP Ng, V Ng , BA Cheong; Philosophical Magazine B, 80, 4, p. 729, 2000
• Luminescence and X-ray diffraction studies of Ge nanocrystals in amorphous silicon oxide; V Ng , SP Ng, HH Thio, WK Choi, ATS Wee, YX Jie; Materials Science and Engineering A, 286, 1, p.161, 2000
• Raman Characterization of germanium nanocrystals in amorphous silicon oxide films synthesized by rapid thermal annealing; WK Choi, V Ng , SP Ng, HH Thio; Journal of Applied Physics, Vol. 86, No. 3, p.1398,1999
• Front- and backside investigations of thermal and electronic properties of semiconducting devices; GBM Fiege, W Schade, M Palaniappan, V Ng , JCH Phang, LJ Balk; Microelectronics Reliability 39, 6-7, p.937, 1999
• Effect of wire length on Coulomb blockade in ultrathin wires of recrystallized hydrgenated amorphous silicon; V Ng , H Ahmed, T Shimada, Journal of Applied Physics Vol. 86, No. 12, p.6931,1999
• Non-linear electron transport characteristics in ultrathin films of recrystallized hydrgenated amorphous silicon; V Ng , H Ahmed, T Shimada, Applied Physics Letters Vol. 73, No. 7, p. 972,1998
Conference presentations:
• Domain evolution in permalloy structures under the influence of magnetic field by current application, V Ng , K O Aung, Accepted for Intermag 2005, Nagoya Japan , April 4-8 2005
• Current-Induced Domain Evolution in Micro- & Nano- Magnetic Structures, Soh, Y S and V Ng , International Conference on Materials for Advanced Technology (ICMAT) 2005, 3-8 July 2005, Singapore International Convention and Exhibition Centre, Singapore, Singapore.
• Current-Controlled Domain Configurations in Permalloy Micro-Structures, Soh, Y S and V Ng , 5th IEEE COnference on Nanotechnology (IEEE NANO 2005), 11-15 July 2005, Nagoya International Congress Centre, Nagoya, Japan.
• Exchange bias effect in Co-Cu-Co pseudo spin-valve layers Ng, V and L K Verma, 5th IEEE Conference on Nanotechnology (IEEE NANO 2005), 11-15 July 2005, Nagoya International Congress Centre, Nagoya , Japan .
• Temperature Dependence Properties of CoAlO Films and Devices. Ng, V and K M Tun, 50th International Conference on Magnetism and Magnetic Materials, 30 October - 3 November 2005, San Jose, California, United States
• Nanoscale CoCrPt/Ti dots with out-of-plane magnetization fabricated by electron beam lithography, V Ng, XY Su, JP Wang, presented at 9 th Joint Intermag-Magnetism and Magnetic Materials Conference, Jan 5-10, 2004, Anaheim, USA
• Dynamics of Self Assembly, L K Verma, V Ng , Proceedings of the 1 st International Conference on Nanotechnology, 13-17 July 2004, Singapore
• Fabrication of embedded media by etching of self-assembled mask, LK Verma, V Ng , Proceedings of 4 th IEEE Conference on Nanotechnology, 17-19 Aug 2004, Munich, Germany
• Magnetic Anisotropy in magnetostatically coupled Ni80Fe20 Nanowires, Goolaup, S, N Singh , A O Adeyeye, V Ng and M B A Jalil, Proceedings of the 4th IEEE Conference on Nanotechnology 2004, pp. 471-473. United States , August 200,4 IEEE Conference on Nanotechnology, 17-19 August 2004, Munich , Germany
• Invited talk ‘Fabrication of Embedded Media by Etching of Self Assembled Nanosphere Mask' , V Ng and L K Verma, Unification of Analytical, Computational and Experimental Solution Methodologies in MEMS and Nanotechnology Symposium, , Springfield, USA, 27-29 October 2004
• ‘Characterization of Magnetic Granular Devices at Varying Temperature', KM Tun and V Ng accepted at 49 th Annual conference in Magnetism and Magnetic Materials, Jacksonville, Florida, USA, 7-11 Nov 2004.
• Nanoscale CoCrPt/Ti dots with out-of-plane magnetization fabricated by electron beam lithography, V Ng , XY Su, JP Wang, abstract accepted at INTERMAG 2003, Boston Marriott Copley Place, Boston, Massachusetts, March 30 - April 3, 2003.
• Magnetic properties and applications of tantalum doped cobalt, V Ng and K H Fong, 47th Annual Conference on Magnetism and Magnetic Materials, 11-15 November 2002, Tampa Marriott Waterside Hotel, Tampa , Florida , United States . (Accepted for presentation).
• Effects of In-situ magnetic field application and post deposition magnetic annealing on sputtered Ni 80 /Fe 50 Mn 50 Ni 80 Fe 20 trilayers, F H Chen, V Ng , and A O Adeyeye, 47th Annual Conference on Magnetism and Magnetic Materials, 11-15 November 2002, Tampa Marriot Waterside Hotel, Tampa , Florida , United States . (Accepted for presentation).
• Effect of Size of Ge nanocrystal embedded in SiO2 on Raman spectra, WK Choi, YW Ho, V Ng , Proceedings of International Conference on Materials for Advanced Technologies (Symp M), Singapore , 1-6 July 2001.
• Effect of laser on formation of Ge nanocrystal embeded in SiO2, V Ho, WK Choi, C Heng, V Ng , Proceedings of International Conference on Materials for Advanced Technologies (Symp M), Singapore , 1-6 July 2001.
• Substrate surface effect on the fabrication of nanomagnets using spin coating technique, BT Chen, V Ng , AO Adeyeye, present ed at IEEE NANO 2001, Maui , Hawaii , USA , 28-30 2001.
• Co x Al y O z granular films prepared by reactive sputtering, V Ng , ZY Zhao, AO Adeyeye, abstract accepted at 46 th Annual Conference on Magnetism and Magnetic Materials, Seattle Washington, 12-16 Nov 2001.
• Influence of Ta on surface roughness and magnetic properties for magnetic tunnel junctions, V Ng , KH Fong, AO Adeyeye, abstract accepted at 46 th Annual Conference on Magnetism and Magnetic Materials, Seattle Washington , 12-16 Nov 2001.
• Factors affecting surface roughness and coercivity of Ni 80 Fe 20 thin films, V Ng , JF Hu, AO Adeyeye, JP Wang, TC Chong, presented at 46 th Annual Conference on Magnetism and Magnetic Materials, Seattle Washington , 12-16 Nov 2001.
• CoCrPt/Ti dots with out-of-plane magnetization fabricated by electron beam lithography, V Ng , XY Su, JP Wang, abstract accepted at 46 th Annual Conference on Magnetism and Magnetic Materials, Seattle Washington , 12-16 Nov 2001.
• Control of the tilted orientation of CoCrPt/Ti thin film media by collimated sputtering, YF Zheng, JP Wang, V Ng , presented at 46 th Annual Conference on Magnetism and Magnetic Materials, Seattle Washington , 12-16 Nov 2001.
• Effects of Dy-doping on magnetic and reversal properties of recording media, HB Ren, JP Wang, ZS Shan, S Malhotra, G Bertero, V Ng , presented at 46 th Annual Conference on Magnetism and Magnetic Materials, Seattle Washington, 12-16 Nov 2001.
• Magnetization reversal analysis for antiferromagnetic-coupled films with magnetic field angle dependence, HB Ren, ZS Shan, JP Wang, V Ng , presented at 46 th Annual Conference on Magnetism and Magnetic Materials, Seattle Washington , 12-16 Nov 2001.
• Lithographically defined lateral Co/Ni 80 Fe 20 multilayers, Adeyeye, A O, M K Husain and V Ng, abstract accepted at 46 th Annual Conference on Magnetism and Magnetic Materials, Seattle Washington , 12-16 Nov 2001
• Investigation of Ge nanocrystal formation in SiO2-Ge-SiO2 sandwich structure, WK Choi, V Ng, VSL Swee, CS Ong, MB Yu, Rusli, Proceedings of 5 th International Conference on Nanostructured Materials, Sendai, Japan, 20-25 Aug 2000.
• Characterization of Ge nanocrystals in co-sputtered Ge+SiO2 system using Raman spectroscopy, RBS and TEM, YW Ho, V Ng, WK Choi, SP Ng, T Osipowicz, HL Seng, WW Tjui, K Li, Proceedings of 5 th International Conference on Nanostructured Materials, Sendai, Japan, 20-25 Aug 2000.
• Raman and photolumescence characterization of Ge nanocrystals in co-sputtered Ge+SiO2 system, WK Choi, V Ng , YW Ho, SP Ng, TB Chen, MB Yu, Proceedings of IUMRS-6 th International Conference in Asia (Symp C), Hong Kong, 23-27 July 2000.
• Factors affecting Ge nanocrystals size in co-sputtered Ge+SiO2 films, WK Choi, V Ng , YW Ho. TB Chen, Proceedings of Materials Research Society Symposium, Boston , USA , 27 Nov- 1 Dec 2000 .
• Synthesizing germanium nanocrystals in amorphous silicon oxide by rapid thermal annealing; WK Choi, HH Thio, SP Ng, V Ng , Proceedings of 1 st International Materials Workshop on Semiconducting and Superconducting Materials, Turin, Italy, 17-19 Feb 1999.
• Luminescence and X-ray diffraction studies of Ge nanocrystals in amorphous silicon oxide; V Ng , SP Ng, HH Thio, WK Choi, Proceedings of the 5 th International Conference on Advanced Materials (Symp A), Beijing, China, 6-13 June 1999.
• Front- and backside investigations of thermal and electronic properties of semiconducting devices; GBM Fiege, W Schade, M Palaniappan, V Ng , JCH Phang, LJ Balk; European Symposium on Reliability of Electron Devices Failure Physics and Analysis, Bordeaux, France, 5-8 Oct 1999.
• Correlation of electronic and thermal properties of short channel nMOSFETs, M Palaniappan, GBM Fiege, V Ng , R Heiderhoff, JCH Phang, LJ Balk, presented at ISTFA 99, Santa Clara , California , USA , 14-18 Nov 1999.
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