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Naganivetha Thiyagarajah |
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Ph.D. candidate
Biomagnetics Laboratory (BML)
Phone:
(65) 6516-1496
Advisors:
Assist Prof. Bae, Seongtae
A Member
of
Information Storage Materials
Laboratory (ISML) |
I was born in Sri Lanka in 1983 and obtained my Bachelor degree in Electrical & Computer Engineering from the National University of Singapore in 2005. I am currently working as a Research Engineer and pursuing my PhD in NUS.
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Thesis
Spin transfer switching spintronic devices using [Co/Pd] based spin-valves with perpendicular anisotropy
Research
Interests
Current-induced magnetization reversal
Magnetoresistive random access memory (MRAM)
Nano-fabrication techniques
Applied spintronic devices
Magnetic bio-sensors
Magnetic thin-film deposition and properties
Publications
Ping Zhang, Naganivetha Thiyagarajah, and Seongtae Bae, "Magnetically-labeled GMR biosensor with a single immobilized ferrimagnetic particle agent for the detection of extremely low concentration of biomolecules", IEEE Sensors Journal,
11, 9 (2011)
Lin Lin, Naganivetha Thiyagarajah, Ho Wan Joo, Jang Heo, Ky Am Lee, and Seongtae Bae, “Enhancement of perpendicular exchange bias in [Pd/Co]/FeMn thin films by tailoring the magnetoelastically-induced perpendicular anisotropy”, Appl. Phys. Lett.,
97, 242514 (2010)
Lin Lin, Naganivetha Thiyagarajah, Ho Wan Joo, Jang Heo, Ky Am Lee, and Seongtae Bae, “A physical model of exchange bias in [Pd/Co]5/FeMn thin films with perpendicular anisotropy”, J. Appl. Phys., 108, 063924 (2010)
Naganivetha Thiyagarajah, Lin Lin, and Seongtae Bae, "Effects of NiFe/Co insertion at the [Pd/Co] and Cu interface on the magnetic and GMR properties in perpendicularly magnetized [Pd/Co]/Cu/[Co/Pd] pseudo spin-valves", IEEE Trans. Mag., 46, 968 (2010)
Naganivetha Thiyagarajah, Ho Wan Joo, and Seongtae Bae, "High magnetic and thermal stability of nano-patterned [Co/Pd] based pseudo spin-valves with perpendicular anisotropy for 1Gb MRAM", Appl. Phys. Lett. 95, 232513 (2009)
Rachid Sbiaa, Cho Zhong Hua, S. N. Piramanayagam, Randall Law, Kyaw Oo Aung, and Naganivetha Thiyagarajah, “Effect of film texture on magnetization reversal and switching field in continuous and patterned (Co/Pd) multilayers”, J. Appl. Phys. 106, 023906 (2009)
Naganivetha Thiyagarajah, and Seongtae Bae, "Effects of engineered Cu spacer on the interlayer coupling and GMR behavior in Pd/[Pd/Co]2/Cu/[Co/Pd]4 pseudo spin-valves with perpendicular anisotropy", J. Appl. Phys. 104, 113906 (2008)
Naganivetha Thiyagarajah, Seongtae Bae, Ho Wan Joo, Young Chul Han, and Jongryoul Kim, "Effects of perpendicular anisotropy on the interlayer coupling in perpendicularly magnetized [Pd/Co]/Cu/[Co/Pd] spin-valves", Appl. Phys. Lett. 92, 062504 (2008)
Awards and Scholarships
NUS Graduate Research Scholarship
NUS Alumni award 2002
Work Experience
Dept. of Electrical & Computer Engineering, NUS, Singapore (Sept 2010 - present) Research Engineer
Information Storage Materials Laboratory, NUS, Singapore (July 2005 – June 2009) Research Engineer, Electron beam Lithography
John Keels Holdings, Sri Lanka (May – Aug 2003) Internship, Management Information Systems
Conference
“Physical nature of anomalous peaks observed in EHE loops of [Co/Pd] based exchange biased spin-valves with perpendicular anisotropy” Naganivetha Thiyagarajah, Lin Lin, Howan Joo, and Seongtae Bae [FE-03] 55th MMM International Conference, Atlanta, GA, USA (2010, 11, 14 ~ 18)
“High magnetic and thermal stability of nano-patterned [Co/Pd] based pseudo spin-valves with perpendicular anisotropy for 1Gb MRAM”, Naganivetha Thiyagarajah, Seongtae Bae, and Howan Joo [DT-07], 11th Joint MMM-Intermag Conference, Washington, D.C., USA (2010, 1, 18 ~ 22)
"Interlayer coupling through Cu spacer in the [Pd/Co]/Pd/Co/Cu(t)/Co/[Pd/Co]/FeMn exchange biased spin-valves with perpendicular anisotropy." J. Heo, Ho Wan Joo, Naganivetha Thiyagarajah, K. Lee, and Seongtae Bae, [GF-04], Intermag Conference, Sacramento, California, USA (2009. 05. 04 ~ 08)
“Nanoimprint Mold Fabrication and Duplication for Discrete Track Recording Media”, Ei-Leen Tan, Rachid Sbiaa, Kyaw Oo Aung, Seidikkurippu Nellainayagam Piramanayagam, Seng Kai Wong, Hang Khume Tan, Wei Choong Allen Poh, Naganivetha Thiyagarajah,[A01824-03174], ICMAT 2009, Singapore (2009.06.28 ~07.03)
"Effects of perpendicular interlayer coupling field on the giant magnetoresistance behavior in perpendicularly magnetized Co/Pd based pseudo spin-valves", Thiyagarajah, Naganivetha, Kim, Sunwook, Bae, Seongtae, [BF-04] , 52nd MMM Conference, Tampa, Florida, USA (2007. 11. 05 ~ 09)
"Effects of NiFe and Co insertion on the perpendicular anisotropy, soft layer coercivity and GMR in perpendicularly magnetized [Pd/Co]/Cu/[Co/Pd] pseudo spin-valves", Naganivetha Thiyagarajah, Seongtae Bae, Ho Wan Joo, and Do Guwn Hwang, [CH-13] 53rd MMM Conference, Austin, Texas, USA (2008. 11. 10 ~ 14)
"Effects of Perpendicular Anisotropy on the Interlayer Coupling in Perpendicularly Magnetized [Pd/Co]/Cu/[Co/Pd] Spin-Valves" Naganivetha Thiyagarajah, Ho Wan Joo, Jack H. Judy, and Seongtae Bae, [18aC-3], 9th Perpendicular Magnetic Recording Conference, Sendai, Japan, 05-2010
"Effects of NiFe/Co Insertion at the [Pd/Co] and Cu Interface on the Magnetic and GMR Properties in Perpendicularly Magnetized [Pd/Co]/Cu/[Co/Pd] Pseudo Spin-Valves", Naganivetha Thiyagarajah, Lin Lin, Jack H. Judy, and Seongtae Bae, [18aC-4], 9th Perpendicular Magnetic Recording Conference, Sendai, Japan, 05-2010
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