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1. Ferrimagnetic ordering in nanostructured CdFe2O4 spinel 19. Composition controlled synthesis of fcc-FePt using a modified polyol process 20. Dielectric relaxation behaviour of nanostructured Mn-Zn Ferrite 21. Synthesis of magnetite nanoparticles for AC magnetic heating, T. Hosono, H. Takahashi, A. Fujita, R. Justin Joseyphus, K. Tohjia and B. Jeyadevan, J. Magn. Magn. Mater 321 (2009) 3019. 22. Evaluation of tempering behaviour in modified 9Cr–1Mo steel by magnetic non-destructive techniques, Harendra Kumar, J.N. Mohapatra, Rajat Kumar Roy, R. Justin Joseyphus, Amitava Mitra, J. Mater. Proc. Tech, 210 (2010) 669-674. 23. Size controlled Fe nanoparticles through polyol process and their magnetic properties, R. Justin Joseyphus, K. Shinoda, D. Kodama, B. Jeyadevan, Mater. Chem. Phys. 123 (2010) 487-493. 24. Autocombustion Synthesis of Nanocrystalline Gadolinium Iron Garnet, S. Gokul Raj, S. Nallamuthu, and R. Justin Joseyphus, Nanoscience and Nanotechnology Letters, 3 (2011) 1-5.
PUBLICATION LIST
C. N. Chinnasamy, N. Ponpandian, A. Narayanasamy, R. Justin Joseyphus, K. Chattopadhyay, K. Shinoda, B. Jeyadevan, K. Tohji, K. Nakatsuka and J.M-Greneche, J. Appl. Phys., 90 (2001)527.
2. Structure and magnetic properties of nanocrystalline ferrimagnetic CdFe2O4
C. N. Chinnasamy, N. Ponpandian, A. Narayanasamy, R. Justin Joseyphus, K. Chattopadhyay, K. Shinoda, B. Jeyadevan, K. Tohji and K. Nakatsuka, Scripta Materialia, 44 (2001) 1411.
3. Grain size effect on the Neel temperature and magnetic properties of nanocrystalline NiFe2O4 spinel, C. N. Chinnasamy, N. Ponpandian, A. Narayanasamy, R. Justin Joseyphus, B. Jeyadevan, K. Tohji and K. Chattopadhyay, J. Magn. Magn. Mater., 238 (2002) 281.
4. Possible magnetic phase separation in Ru-diped La0.67Ca0.33MnO3
L. Seetha Lakshmi, V. Sridharan, D. V. Natarajan, S. Chandra, V. Sankar Sastry, T. S. Radhakrishnan, N. Ponnpandian, R. Justin Joseyphus and A. Narayanasamy, J. Magn. Magn. Mater.,257 (2003)195.
5. Unusually high coercivity and critical single domain size of nearly monodispersed CoFe2O4 nanoparticles
C. N. Chinnasamy, B. Jeyadevan, K. Shinoda, K. Tohji, D. J. Djayaprawira, M. Tahakashi, R. Justin Joseyphus and A. Narayanasamy, Appl. Phys. Lett., 83 (2003) 2862.
6. Reply to the ‘‘Comment on papers ‘Effect of Ag substitution on the transport property and magnetoresistance of LaMnO3’ [J. Magn. Magn. Mater. 248 (2002) 26] and ‘Possible magnetic phase separation in Ru doped La0.67Ca0.33’ [J. Magn. Magn. Mater. 257 (2003) 195].
L. Seetha Lakshmi, V. Sridharan, D. V. Natarajan, S. Chandra, V. Sankar Sastry, T. S. Radhakrishnan, N. Ponnpandian, R. J. Joseyphus and A. Narayanasamy, J. Magn. Magn. Mater. 270 (2004) 241.
7. Mechanochemical Decomposition of Gd3Fe5O12 garnet phase
R. Justin Joseyphus, A. Narayanasamy, N. Sivakumar, K. Chattopadhyay and N. Ponpandian, J. Magn. Magn. Mater.,272-276 (2004) 2257.
8. Dipolar and exchange couplings in Nd2Fe14B/alpha-Fe ribbons
R. Justin Joseyphus, A. Narayanasamy, D. Prabhu, L. K. Varga, B. Jeyadevan, C. N. Chinnasamy, K. Tohji and N. Ponpandian, Phys. stat. sol. (c), 1 (2004) 3489.
9. Effect of mechanical milling on the magnetic properties of garnets
R. J. Joseyphus, A. Narayanasamy, R. Krishnan and A. K. Nigam, J. Magn. Magn. Mater. 296 (2006) 57.
10. Synthesis and magnetic properties of the size-controlled Mn-Zn ferrite nanoparticles by oxidation method
R. Justin Joseyphus, A. Narayanasamy, K. Shinoda, B. Jeyadevan and K. Tohji, J. Phys. Chem. Solids 67 (2006) 1510.
11. Influence of magnetic properties on electrochemical activity of LiNi0.5Fe0.5O4
D. Kalpana, R. Justin Joseyphus, C. Venkateswaran, A. Narayanasamy and M. V. Ananth, J. Power sources 156 (2006) 598.
12. Magnetic properties of the mechanically milled Sm-Co permanent magnetic materials with the TbCu7 structure
R. J. Joseyphus, A. Narayanasamy, R. Gopalan, V. Chandrasekaran, B. Jeyadevan and K. Tohji, Mater. Trans. 47 (2006) 2264.
13. Polyol process for Fe- based hard (fct-FePt) and soft (FeCo) magnetic nanoparticles
B. Jeyadevan, K. Shinoda, R. J. Justin, T. Matsumoto, K. Sato, H. Takahasi, Y. Sato and K. Tohji, IEEE Trans. Magn. 42 (2006) 3030.
14. Chemical synthesis of Sub-micrometer to nanometre sized magnetic FeCo dice
D. Kodama, K. Shinoda, Sato, Y. Konno, R. J. Joseyphus,K. Motomiya, H. Takahashi, T. Matsumoto, Y. Sato, K. Tohji and B. Jeyadevan. Adv. Mater. 18 (2006) 3154.
15. Structural, magnetic and electrochemical studies on LiCo0.5Fe0.5O2
D. Kalpana, R. Justin Joseyphus, N. Sivakumar, A. Narayanasamy and M. V. Ananth, Ionics 12 (2006) 371.
16. Role of Polyol on the formation of Fe particles
R. J. Joseyphus, T. Matsumoto, Y. Sato, B. Jeyadevan and K. Tohji, J.Magn. Magn. Mater 310 (2007) 2393.
17. Designed synthesis of cobalt and its alloys by polyol process
R. Justin Joseyphus, T. Matsumoto, H. Takahashi, D. Kodama, K. Tohji and B. Jeyadevan, J. Solid State Chem. 180 (2007) 3008.
18. Studies on the exchange and dipolar couplings in Nd2Fe14B/alpha-Fe ribbons
R. Justin Joseyphus, A. Narayanasamy, L. K. Varga and B. Jeyadevan, Int. J. Mater. Res. 1 (2008) 70.
R. Justin Joseyphus, B. Jeyadevan, K. Shinoda, Y. Sato and K. Tohji, J. Mater. Sci. 43 (2008) 2402.
N Sivakumar, A Narayanasamy, B Jeyadevan,R Justin Joseyphus and C Venkateswaran, J. Phys. D: Appl. Phys 41 (2008) 245001.
25. Magnetic Nanoparticle Flow Characteristics in a Microchannel for Drug Delivery Applications, K. Prakash and R. Justin Joseyphus, AIP Conf. Proc. 1347 (2011) 27-30.
26. Low temperature synthesis of ITO nanoparticles using polyol process, R. Justin Joseyphus, B. Jeyadevan, J. Phys. Chem. Solids, 72 (2011) 1212-1217. Conference Presentations R. J. Joseyphus, D. Kodama, Y. Konno, K. Tohji and B. Jeyadevan, ICMM, Kolkata, India, Dec 11-16, 2007. 19. Synthesis of Thermal Seeds for Magnetic Fluid Hyperthermia by pH Stabilized Coprecipitation Technique, T. Hosono, R. Justin Joseyphus, H. Takahashi, A. Fujita K. Tohji, B. Jeyadevan, 7th Intl Conference on Scientific and clinical Applications of Magnetic Carriers, Vancouver, Canada, May 21-24,2008. 20. Magnetic Particle Hyperthermia at MRI frequency, V. Krishnamoorthy and R. Justin Joseyphus, International Conference on Magnetic Materials & their applications for 21st Century [MMA21], 21-23 October, 2008, New Delhi, India. 21. Superparamagnetic Nanoparticles as MRI Contrast Agents, R. Priya, S. Rajesh Kumar, D. Mangalaraj, N. Ponpandian, D. Prabhu, R. Justin Joseyphus, International Conference on Magnetic Materials & their applications for 21st Century [MMA21], 21-23 October, 2008, New Delhi, India. 22. Influence of Cobalt Precursor Type on the Reaction Scheme in Polyol Process 23. Assessment of Heat Treatment Behaviour of Modified 9Cr-1Mo Steel Using non-Invasive Magnetic Techniques, Harendra Kumar, J. N. Mohapatra, R. Justin Joseyphus and A. Mitra, NDE2009, Dec 10-12, 2009, Tiruchirappalli, India. 24. Numerical Evaluation of Crack Detection Using Thermal Source, T. Periyasamy and R. Justin Joseyphus, NDE2009, Dec 10-12, 2009, Tiruchirappalli, India. 25. Surface Modified Fe3O4 Nanoparticles, S. Nallamuthu, T. Arun and R. Justin Joseyphus, ICMM2010, Oct 25-29, 2010, Kolkata, India. 26. Magnetic Nanoparticle Flow Characteristics in a Microchannel for Drug Delivery Applications, K. Prakash and R. Justin Joseyphus, ICMM2010, Oct 25-29, 2010, Kolkata, India. 27. Magnetic and Thermal Studies of Nanocrystalline Nd3-xYxFe5O12, M. Vairavel, S. Gokulraj and R. Justin Joseyphus, International Conference on Materials for Advanced Technologies (ICMAT2011), Singapore, 29 Jun-1st July 2011. 28. Synthesis and magnetic properties of Co/CoO nanoparticles, K. Prakash, R. Justin Joseyphus Third International Conference on Frontiers in Nanoscience and Technology, COCHIN NANO-2011, August 14-17, 2011, Cochin, India. 29. Core-shell magnetic nanoparticles for biomedical applications, R. Krishnan, T. Arun, R. Justin Joseyphus, Third International Conference on Frontiers in Nanoscience and Technology, COCHIN NANO-2011, August 14-17, 2011, Cochin, India. Seminar presentations Magnetic properties of materials, Workshop on Materials Science for Engineers (MSE 2007), 4th Nov 2007,Dept of MME, NITT. Permanent magnetic materials, Workshop on Advanced Materials and devices, 10th Jan 2008, Physics, NITT. Biomedical applications of magnetic nanoparticles, Workshop on nanostructures and devices, Physics, NITT, 23rd Feb 2008. Structure and Properties of Magnetic Materials, Workshop on Structure and Properties of Advanced Engineering Materials,Dept of MME, NITT, 24th Feb 2008. Magnetic nanoparticles in biomedicine, Dept of Physics, MSU, 29th Feb 2008. Chemical Synthesis of Magnetic Nanoparticles, Workshop on Advances in Chemistry, 29th Feb 2008, Dept of Chemistry, MSU, Tirunelveli.
1. Size dependent magnetic properties of materials
A. Narayanasamy, C. N. Chinnasamy, N. Ponpandian and A. Narayanasamy
Solid state physics (India) 43 (2000) 22.
2. Magnetisation studies on Nanocomposite Nd10Fe85B5 ribbons.
M. Tamilmani, R. Justin Joseyphus, A. Narayanasamy, L. K. Varga and N. Sivakumar
DAE SSP, Gwalior, India, Dec 26-30, 2003.
3. Synthesis of Ferrite Nanoparticles through acqueous process for biomedical applications
R. Justin Joseyphus, C. N. Chinnasamy, B. Jeyadevan, A. Kasuya, K. Shinoda A. Narayanasamy and K. Tohji., 1st International workshop on water dynamics, Tohoku University, Sendai, Japan, March 2004, pp.51.
4. Synthesis of size controlled Mn-Znferrite nanoparticles
R. Justin Joseyphus, T. Atsumi, B. Jeyadevan, K. Shinoda, A. Narayansamy, K. Tohji and A. Kasuya
Nanotechnology, Japan, May 2004.
5. Synthesis of Fe nanoparticles through polyol process
R. Justin J. et al., Proceedings of the 28th annual conference on magnetics in Japan, Okinawa, Japan, Sept 21-24, 2004.
6. Synthesis of transisiton metal (Fe. Co and Ni) nanoparticles by polyol process
C. N. Chinnasamy, R. J. Justin, B. Jeyadevan, K. Shinoda and K. Tohji, Proceedings, 2004 International mini-symposium on materials science and technology, Nov 19,2004, p.12.
7. Magnetic properties of the mechanically milled nanocrystalline garnets
R. Justin Joseyphus, A. Narayanasamy, A. K. Nigam, M. Guyot and R. Krishnan, 2nd International workshop on prospects in metal oxides, thin films and heterostructures, Fontevraud, France, April 20-22, 2005.
8.Superparamagnetic particle size limit in Mn-Zn ferrite nanoparticles synthesised through aqueous process
R. Justin Joseyphus, A. Narayanasamy, B. Jeyadevan, K. Shinoda and K. Tohji, AIP Proceedings 833 (2006) 31.PDF
9. Low temperature synthesis of Fe and Fe-based alloys
R. Justin Joseyphus, Y. Sato, K. Shinoda, B. Jeyadevan and K. Tohji, ISHR&ICSTR 2006, Sendai, Japan, 5-9 Aug, 2006.
10. Formation of Fe nanoparticles in polyols and their magnetic properties
R. Justin Joseyphus, K. Shinoda, T. Matsumoto, B. Jeyadevan and K. Tohji, ICM 2006, Aug 21-25, Kyoto, Japan.
11. Aqueous synthesis of non-superparamagnetic MnFe2O4 nanoparticles
R. J. Joseyphus, N. Sivakumar, A. Narayanasamy, K. Tohji and B. Jeyadevan, 4th Intl workshop on water dynamics, Sendai, Japan, 7-8 Nov, 2006.
12. Polyol derived soft process for the synthesis of Fe and FeCo alloy particles
B. Jeyadevan, R. J. Joseyphus, D. Kodama, Y. Konno, K. Shinoda, K. Sato, H. Takahashi, Y. Sato and K. Tohji, ICMF11, Kosice, Slovakia, July 23-27, 2007.
13. The role of Pt complex on the synthesis of FePt by Polyol process
S. Aizawa, R. J. Joseyphus, K. Tohji and B. Jeyadevan
5th International workshop on water dynamics, 25-27 Sept 2007, Sendai, Japan
14. Investigation of heat diffusion characteristics of magnetic nanoparticles in ac magnetic field
M. Suto, K. Maruta, M. Ohta, H. Kosukegawa, R. J. Joseyphus, K. Tohji and B.Jeyadevan, 5th International workshop on water dynamics, 25-27 Sept 2007, Sendai, Japan
15. Fe dice for biomedical applications
16. Core-shell Co-Ni nanoparticles
R. J. Joseyphus, D. Sastikumar and B. Jeyadevan, ICMM, Kolkata, India, Dec 11-16, 2007.
17. Size controlled Fe nanoparticles through polyol process and their magnetic properties, R. J. Joseyphus, K. Shinoda, D. Kodama and B. Jeyadevan, Intermag 2008, Madrid, Spain, May 4-8,2008
D. Kodama, K. Shinoda, R. J. Joseyphus, Y. Shimada, K. Tohji, B. Jeyadevan,Intermag 2008, Madrid, Spain, May 4-8,2008
H. Hiyama, R.J. Joseyphus, D. Kodama, R. Kasuya and B. Jeyadevan
IUMRS-ICA 2008, Dec 9-13, 2008, Nagoya, Japan.
Degree
Ph.D - Department of Nuclear Physics, University of Madras, Chennai (2005). Title of the thesis: Size dependent magnetic properties of nanocrystalline Mn-Zn Ferrite, Garnets and Permanent Magnetic Materials.
M.Sc - St. Joseph's College, Tiruchirapalli (Trichy)
Awards/Fellowships
UGC Project Fellow (1999-2001)
CSIR-SRF (2002-2004)
MEXT research fellow, Japan (2003)
COE fellow, Japan (2003)
Best poster award, ISHR&ICSTR 2006, Japan (August 2006)
Post-doctoral Fellow (2005-2007) Graduate School of Environmental Studies
Membership Indian Physics Association (IPA) - MAD/LM/11918 Indian Society for Non-Destructive testing - LM-8440-TC Elected Member (MInstP), Institute of Physics (IoP), UK - Since 2011 Projects Development of Magnetic Nanoparticles Suitable for Detoxification and Drug Delivery - DST - (2008-11)
Tohoku University
Sendai, Japan
Training
Electron microscopic techniques (Univ. Pune)
Thermal Analysis (IITM)
Computer simulations (MKU, Madurai)
In vitro cell culture (King Institute, Guindy, Chennai)
Visits (Nucleonix, DMRL, Hyderabad; BARC,Mumbai; Getwell hospital, TNvl)
Magnetics Society of India (MSI) - LM200
Materials Research Society of India (MRSI) - LM B 1081