Research Interest
Publications
Conferences
List of Publications in peer reviewed journals and conferences
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Citation Index: 63 Impact: 4.2
1. Ferrimagnetic ordering in nanostructured CdFe2O4 spinel
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 electrochemicl 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. Composition controlled synthesis of fcc-FePt using a modified polyol process
R. Justin Joseyphus, B. Jeyadevan, K. Shinoda, Y. Sato and K. Tohji, J. Mater. Sci. (In press).
18. 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.  (In press)
19. Studies on the exchange and dipolar couplings in Nd2Fe14B/alpha-Fe ribbons
R. Justin Joseyphus et al. (communicated).

Conference Proceedings
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