Margaritis' profile at Google Scholar.

My selected Publications

Effect of Zr substitution on the structural and magnetic properties of the series Nd1- xZrxFe10Si2 with the ThMn12 type structure
Gjoka, M., Psycharis, V., Devlin, E., Niarchos, D., Hadjipanayis, G.
Journal of Alloys and Compounds 687, (2016), pp. 240-245

Structure and Magnetic Properties of Boron Doped Fe50+xCu25−xM25(M=Al, Ga) and Fe50+xCo25−xGa25 Heusler Alloys
Ch. Sarafidis , M. Gjoka, O. Kalogirou, N. Lupu, G. Ababei and D. Niarchos
IEEE Transactions on Magnetics, Vol. 50, No. 11, November 2014, 2103704

Experimental Proof of Microwave Sintering of Nd–Fe–B Powders Toward Fabrication of Permanent Magnets
M. Gjoka, Dan Neil, G. Hadjipanayis, and Dimitri G. Niarchos
IEEE Transactions on Magnetics, Vol. 50, NO. 11, November 2014, 2104804

Structure and the Magnetic Properties of RFe6-xSix (R= Y, Gd, Dy, Ho)
M Gjoka, V Psycharis and D Niarchos
Alloys. Mater. Sci. Eng. Adv. Res 1(3), (2015): 10-14.

Structure and magnetic properties of the Sm(Co0.74Fe0.1Cu0.12Zr0.04)8 melt-spun nanostructured ribbons
M. Gjoka, D. Niarchos, K. Gianakopoulos, C. Sarafidis, O. Kalogirou, M. Grigoras, N. Lupu and H. Chiriac
Materials Science and Engineering B 152 (2008) 81–85

Structural and magnetic properties of Sm3(Fe1- xCox)27.7Ti1.3
M. Gjoka, C. Sarafidis, O. Kalogirou, E Devlin and D. Niarchos
IEEE Transactions on Magnetics, vol 42, Nr 11, (2006) 3767

Structure and magnetic properties of Er3(Fe, V)29 alloys
Μ. Gjoka, T. Dilo, D. Niarchos and F. Leccabue
Journal of Alloys and Compounds (2004), Vol 369/1- 2, pp 178-181

Temperature-compensated Sm1-xGdx(Co0.74Fe0.10Cu0.12Zr0.04)7.50 permanent magnets (x=0, 0.2, 0.4, 0.6, 0.8)
M. Gjoka, I. Panagiotopoulos, D. Niarchos, T. Matthias, J. Fidler
Journal of Alloys and Compounds, Volume 367, Issues 1-2 , 24 March 2004, Pages 262-265

Structure and magnetic properties of RCo7-xMnx alloys (R=Sm, Gd; x=0.1-1.4)
M. Gjoka, O. Kalogirou, C. Sarafidis, D. Niarchos, G.C.Hadjipanayis
J. Magn. Magn. Mater., 242-245, pp. 844-846 (2002)

Phase diagram and magnetic properties of Nd3-xDyx (Fe,Ti)29 (0.1<x<3) intermetallic compounds
M. Gjoka, V. Psycharis , O. Kalogirou , N. Sheloudko , D. Niarchos , M. Mikhov. J. Dode, T. Dilo, Sh. Vyshka
Journal of Alloys and Compounds 305 (2000) 311–317

Synthesis and magnetic properties of Nd3(Fe,Ti)29Cx carbide
M. Gjoka, O. Kalogirou, V. Psycharis and D. Niarchos
J. Alloys Comp. 240 pp. 134-138 (1996)

Three publications with my crucial contribution:

High coercivity cobalt carbide nanoparticles processed via polyol reaction: A new permanent magnet material
V.G. Harris, Y. Chen, A. Yang, S. Yoon1, Z. Chen, Anton Geiler, C.N. Chinnasamy, L.H. Lewis, C. Vittoria, E.E. Carpenter and K. J. Carroll R. Goswami, M. A. Willard, L. Kurihara, M. Gjoka, O. Kalogirou
J. Phys. D: Appl. Phys. 43 (2010) 165003 (7pp)

(The collaborators from Northern University of Boston accepted my structure characterization of their sample, withdrawing their previous paper on Appl. Phys. Letters (Applied Physics Letters 97, 059901 2010)

Chemical synthesis and characterization of hcp Ni nanoparticles
V. Tzitzios, G. Basina, M. Gjoka, V Alexandrakis, V. Georgakilas, D. Niarchos, N. Boukos and D. Petridis
Nanotechnology 17 No 15 (14 August 2006) 3750-3755

(Structure characterisation and magnetic characterisation was carried from me; my contribution is about half of the Paper)

The role of synthetic parameters in the magnetic behavior of relative large hcp Ni nanoparticles
A. Kotoulas, M. Gjoka, K. Simeonidis, I. Tsiaoussis, M. Angelakeris, O. Kalogirou, C. Dendrinou-Samara
Journal of Nanoparticle Research 2011, pp. 1-12, DOI 10.1007/s11051-010-9941-2

(The structure and magnetic characterisation was carried from me, my contribution is comparable with that of the first author).