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COMPUTATIONAL NANOTECHNOLOGY

In todays nanotechnology era theoretical simulation of material properties aims in complex material design chalenges. Electronic structure calculations of solids can today predict reliably many properties of mater and is actively used in the design of new materials. Simulations are also a valuable tool in nanophotonic systems design, since many new phenomena and applications like the photonic crystals were first predicted by theory and then realized experimentally. New exciting phenomena and concepts like metamaterials, optical magnetism, plasmonic metamolecules and much more are studied over the last years.

 

Research Topics

Multiple scattering methods for electrons, photons, and phonons

Nanophotonics-Plasmonics

PhoXonic crystals

Monte Carlo simulations for the magnetic properties of dilute alloys

Thermal transport with classical molecular dynamics

Ab initio electronic structure of solids

  • Ballistic transport in nanostructures
  • Surface properties, STM simulations
  • Transport properties of metallic dilute alloys
  • Lattice relaxation around defects
  • Magnetic properties of defects

Publications

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96.
Almpanis, Evangelos; Pantazopoulos, Petros-Andreas; Papanikolaou, Nikolaos; Yannopapas, Vassilios; Stefanou, Nikolaos; Journal of the Optical Society of America B 33(12) 2609-2616
95.
L. Athanasekos, A. Christofi, G. Gantzounis, E. Bolomyti, G. Papageorgiou, M.-C. Skoulikidou, I. Raptis, N. Papanikolaou, Microel. Eng. Volume 159, June 2016, Pages 42–45
94.
N. Papanikolaou, E. Almpanis, G. Gantzounis, A. Christofi, L. Athanasekos, N. Stefanou, Microel. Eng. Volume 159, June 2016, Pages 80-83
93.
E. Almpanis, N. Papanikolaou, Microel. Eng. Volume 159, June 2016, Pages 60-63
92.
E. Almpanis N. Papanikolaou, J. Opt. Soc. Am. B Volume 33, January 2016, Pages 99–104
91.
Varytis, P. , Stefanou, N., Christofi, A., Papanikolaou, N., J. Opt. Soc. Am. B Volume 32, Issue 6 January 2015, Pages 1063–1069.
90.
Chavelas D., Oikonomou P., Botsialas A., Argitis P., Papanikolaou N., Goustouridis D., Beltsios K. Lidorikis E. Raptis I., Chatzichristidi M. Optics and Laser Techn. Volume 68, 1 December 2015, Pages 105–112.
89.
A Smyrnakis, E Almpanis, V Constantoudis, N Papanikolaou and E Gogolides, Nanotechnology 26 085301 (2015) doi:10.1088/0957-4484/26/8/085301.
88.
Evangelos Almpanis, Nikolaos Papanikolaou, and Nikolaos Stefanou, Optics Express, Vol. 22, Issue 26, pp. 31595-31607 (2014) http://dx.doi.org/10.1364/OE.22.031595
87.
Yan Pennec, Vincent Laude, Nikos Papanikolaou, Bahram Djafari-Rouhani, Mourad Oudich, Said El Jallal, Jean Charles Beugnot, Jose M. Escalante, Alejandro Martínez, Nanophotonics, DOI: 10.1515/nanoph-2014-0004 (2014).
86.
Christofi, A., Stefanou, N., Papanikolaou, N. Phys. Rev. B 89, 214410 (2014).
85.
Polydorou, E., Makarona, E., Soultati, A., Georgiadou, D.G., Kyrasta, T., Speliotis, T., Tsamis, C., Papanikolaou, N., Argitis, P., Kostis, I., Kokkosis, A., Davazoglou, D., Vasilopoulou, M. Microel. Eng. 119, 100-104 (2014).
84.
M.I. Georgaki, A. Botsialas, P. Argitis, N. Papanikolaou, P. Oikonomou, I. Raptis, J. Rysz, A. Budkowski, M. Chatzichristidi, Microel. Eng. 115, 55-60 (2014).
83.
E. Almpanis, N. Papanikolaou, J. Appl. Phys. 114 (8) 083106 (2013).
82.
E. Almpanis, N. Papanikolaou, B. Auguié, C. Tserkezis, and N. Stefanou, Opt. Lett. 37, 4624 (2012).
81.
Almpanis, E., Papanikolaou N., Gantzounis, G., and Stefanou N., J. Opt. Soc. Am. B, 29, pp. 2567-2574 (2012)
80.
Christofi, A., Stefanou, N., Gantzounis, G., and Papanikolaou, N., J. Phys. Chem. C, 116 (31), 16674−16679 (2012)
79.
Christofi, A., Stefanou, N., Gantzounis, G., and Papanikolaou, N., Proc. of SPIE Vol. 8423, 84230A (2012)
78.
Papanikolaou, N., Gantzounis, G., Almpanis, E., Stefanou N. (2012) Proc. of SPIE Vol. 8425, 84250M
77.
Georgaki, M.-I., Oikonomou, P., Papanikolaou, N., Argitis, P., Raptis, I., Rysz, J., Budkowski, A., Chatzichristidi, M., Moustakas, N., Botsialas, A. Proceedings of IEEE Sensors, art. no. 6127101, pp. 2034-2037 (2011).
76.
Georgaki, M.-I., Oikonomou, P., Botsialas, A., Papanikolaou, N., Raptis, I., Argitis, P., Chatzichristidi, M. Procedia Engineering, 25, pp. 1177-1180. (2011)
75.
Pennec, Y., Rouhani, B.D., Li, C., Escalante, J.M., Martinez, A., Benchabane, S., Laude, V., Papanikolaou, N. AIP Advances, 1 (4), art. no. 041901. (2011)
74.
G. Gantzounis, N. Papanikolaou, and N. Stefanou, Phys. Rev. B 84, 104303 (2011)
73.
C. Tserkezis, N. Stefanou, G. Gantzounis, and N. Papanikolaou, Phys. Rev. B 84, 115455 (2011)
72.
A. Christofi, N. Stefanou, G. Gantzounis, and N. Papanikolaou, Phys. Rev. B 84, 125109 (2011)
71.
N. Papanikolaou, I. E. Psarobas, G. Gantzounis, E. Almpanis, N. Stefanou, B. Djafari-Rouhani, B. Bonello, V. Laude, A. Martinez Proc. of SPIE 8071 80710Z-1 (2011) doi:10.1117/12.886562
70.
N. Papanikolaou, I.E. Psarobas, N. Stefanou, B. Djafari-Rouhani, B. Bonello, V. Laude Microelectron. Eng. 90, 155 (2012), doi:10.1016/j.mee.2011.04.069
69.
Pennec, Y., Djafari Rouhani, B., El Boudouti, E.H., Li, C., El Hassouani, Y., Vasseur, J.O., Papanikolaou, N., Benchabane, S., Laude, V., Martinez, A. Chinese Journal of Physics, 49, p100-110 (2011)
68.
Vincent Laude, Jean-Charles Beugnot, Sarah Benchabane, Yan Pennec, Bahram Djafari-Rouhani, Nikos Papanikolaou, Jose M. Escalante, and Alejandro Martinez Optics Express Vol. 19, Iss. 10, pp. 9690–9698 (2011)
67.
P. Petrou, I. Raptis, S. Kakabakos, Th. Speliotis, A. Gerardino and N. Papanikolaou Microel. Eng. in press doi:10.1016/j.mee.2011.02.073 , (2011)
66.
G. Gantzounis, N. Papanikolaou, N. Stefanou, Phys. Rev. B 83, 214301 (2011)
65.
Tserkezis, C., Stefanou, N. , Papanikolaou, N., J. Opt. Soc. Am. B 27, 2620-2627 (2010)
64.
Psarobas, I.E., Papanikolaou, N., Stefanou, N., Djafari-Rouhani, B., Bonello, B., Laude, V., Phys. Rev. B 82, Issue 20, 174303 (2010)
63.
El Hassouani, Y. , Li, C. , Pennec, Y., El Boudouti, E.H., Larabi, H. , Akjouj, A. , Bou Matar, O. , Laude, V. , Papanikolaou, N. , Martinez, A. , Djafari Rouhani, B., Phys. Rev. B 82, 155405 (2010)
62.
Y. Pennec, B. Djafari Rouhani, E. H. El Boudouti, C. Li, Y. El Hassouani, J. O. Vasseur, N. Papanikolaou, S. Benchabane, V. Laude, and A. Martinez, Opt. Express. 18, 13 14301 (2010)
61.
N. Papanikolaou, I.E. Psarobas, and N. Stefanou, Appl. Phys. Lett. 96, 231917 (2010)
60.
C. Tserkezis, N. Papanikolaou, and N. Stefanou, Opt. Commun. 283, 4074-4077 (2010)
59.
N. Stefanou, N. Papanikolaou, and C. Tserkezis, Physica. B 405, 2967-2971 (2010)
58.
C. Tserkezis, N. Papanikolaou, E. Almpanis, and N. Stefanou, Phys. Rev. B 80, art. no. 125124 (2009)
 
57.

Negative effective permeability of multilayers of ordered arrays of metal-dielectric nanosandwiches

C. Tserkezis, N. Stefanou, G. Gantzounis, and N. Papanikolaou, Proc. SPIE 7353, 735305 (2009)
   
56.

Understanding artificial optical magnetism of periodic metal-dielectric-metal layered structures

C. Tserkezis, N. Papanikolaou, G. Gantzounis, N. Stefanou, Phys. Rev. B 78, 165114 (2008)

55.

Optical properties of metallodielectric nanosandwiches

N. Papanikolaou, G. Gantzounis, and N. Stefanou, Phys. stat. sol. (c) 5, No. 12, 3701-3703 (2008)

   
54.

Efficient infared emission from patterned thin metal films on a Si photonic crystal

 
P. Theodoni,  V. Em. Vamvakas, Th. Speliotis, M. Chatzichristidi, P. Bayiati, I. Raptis, and N. Papanikolaou Phys. stat. sol. (a) 205, No. 11, 2581-2584 (2008)
   
53.
 

N. Papanikolaou, G. Gantzounis, and N. Stefanou Proc. of SPIE, 6988 69881D(1-12) (2008)

   
52.
 

P. Theodoni, P. Bayiati, M. Chatzichristidi, Th. Speliotis, V. Em. Vamvakas, I. Raptis, and N. Papanikolaou , Microelect. Eng. 85 1112-1115 (2008)

   
51. Lattice thermal conductivity of SiC nanowires
 

N. Papanikolaou, J. Phys.: Condens. Matter 20, 135201 (2008)

   
50. Optical properties of periodic structures of metallic nanodisks
 
G. Gatzounis, N. Stefanou, and N. Papanikolaou, Phys. Rev. B 77, 035101 (2008)
   
49. Optical properties of metallic nanoparticle arrays on a thin metallic film
 

N. Papanikolaou, Phys. Rev. B 75, 235426 (2007)

   
48.

Conduction eigenchannels of atomic-sized contacts: Ab initio KKR Green’s function formalism

 
A. Bagrets, N Papanikolaou, and I. Mertig, Phys. Rev. B 75, 235448 (2007)
   
47.
 

A. Bagrets, N. Papanikolaou, and I. Mertig, Phys. Rev. B 73, 045428 (2006)

   
46.
 

N. Papanikolaou A. Bagrets, I. Mertig, J. Phys. Conf. Ser. 10, 109 (2005)

   
45.

Influence of spin-orbit coupling on the transport properties of magnetic tunnel junctions 

 
V. Popescu, H. Ebert, N. Papanikolaou, R. Zeller, and P. H. Dederichs Phys. Rev. B 72, 184427 (2005)
   
44.
 
D. Kechrakos, N. Papanikolaou, K.N. Trohidou, and T. Dietl, Phys. Rev. Lett. 94, 127201 (2005)
   
43.

Spin-dependent transport in ferromagnet/semiconductor/ferromagnet junctions: & a fully relativistic approach

 
V. Popescu, H. Ebert, N. Papanikolaou, R. Zeller, and P.H. Dederichs, J. Phys. Condens. Matter 16, S5579-S5586 (2004)
   
42.

Magnetoresistance of atomic-sized contacts: an ab-initio study.

  A. Bagrets, N. Papanikolaou, and I. Mertig, Phys. Rev. B 70, 064410 (1-5) (2004)
 
41.

Korringa-Kohn-Rostoker Green-function formalism for ballistic transport

  Ph. Mavropoulos, N. Papanikolaou, P.H. Dederichs, Phys Rev B 69 125104 (1-15) (2004)
 
40.

Magnetoresistance through spin-polarized p states

  N. Papanikolaou, J. Phys. Condens. Matter 5 (29): 5049-5055 (2003)
 
39.

Slater-Pauling Behavior and Origin of the Half-Metallicity of the Full-Heusler Alloys

  I. Galanakis, P.H. Dederichs, and N. Papanikolaou, Phys. Rev. B  66, 174429(1-9) (2002)
 
38.

Spin filter effect in metallic nanowires

 
N. Papanikolaou, J. Opitz, P. Zahn, I. Mertig, Phys. Rev. B 66, 164441(1-8) (2002)
   
37.

Origin and properties of the Gap in the Half-Ferromagnetic Heusler Alloys

  I. Galanakis, P.H. Dederichs, and N. Papanikolaou, Phys. Rev. B 66, 134428(1-10) (2002)
 
36.

Applicability of the broken-bond rule to the surface energy of the fcc metals.

  I. Galanakis, N. Papanikolaou, and P.H. Dederichs:Surf. Sci. 511, 1-12 (2002)
 
35.

Electronic structure of Fe/semiconductor/Fe (001) tunnel junctions.

  M. Freyss, N. Papanikolaou, V. Bellini, R. Zeller, and P.H. Dederichs, Phys. Rev. B 66, 014445(1-8) (2002)
 
34.

Broken bond rule for the surface energies of noble metals.

  I. Galanakis, G. Bihlmayer, V. Bellini, N. Papanikolaou, R. Zeller, S. Bluegel, and P.H. Dederichs: Europhys. Lett. 58, 751-757 (2002)
 
33.

Evolution of Co/Cu multilayer conductivity during growth: ab initio study

 
P. Zahn, N. Papanikolaou, F. Erler, I. Mertig, Phys. Rev. B 65, 134432(1-5) (2002)
   
32.

Effects of resonant interface states on tunneling magnetoresistance.

  O. Wunnicke, N. Papanikolaou, R. Zeller, P.H. Dederichs, V. Drchal, and J. Kudrnovsky: Phys. Rev. B 65, 064425(1-6) (2002)
 
31.

Conceptual improvements of the KKR method.

 
N. Papanikolaou, R. Zeller, and P.H. Dederichs: J. Phys. Condens. Matter 14, 2799-2823 (2002)
   
30.

Importance of complex band structure and resonant states for tunneling.            

 
P.H. Dederichs, Ph. Mavropoulos, O. Wunnicke, N. Papanikolaou, V. Bellini, R. Zeller, V. Drhal, and J. Kudrnovsky: J. Magn. Magn. Matterials 240, 108-113 (2002)
   
29.

Transport properties and electronic structure of epitaxial tunnel junctions.

  M. Freyss, N. Papanikolaou, V. Bellini, R. Zeller, P.H. Dederichs, and I. Turek:J. Magn. Magn. Matterials 240,  117-120 (2002)
 
28.

Tunneling transport in ferromagnet/insulator/ferromagnet junctions.

  M. Freyss, P. Mavropoulos, N. Papanikolaou, V. Bellini, R. Zeller, and P.H. Dederichs:Phase Transitions 75, 159-166 (2002)
 
27.

Effect of lattice relaxations on the hyperfine fields of heavy impurities in Fe

  Korhonen T, Settels A, Papanikolaou N, Zeller R, Dederichs  PH, Hyp. Int. 133 (1-4): 235-238 2001
 
26. Effect of Lattice Relaxations on the Hyperfine fields of Heavy Impurities in Fe.
 

T. Korhonen, A. Settels, N. Papanikolaou, R. Zeller, and P.H. Dederichs:J. Magn. Magn. Matterials. 226-230, 1024-1026(2001)

   
25. Ab initio study of structural distortion and it's influence on the magnetic properties of magnetic dilute alloys
 
N. Papanikolaou, R. Zeller, P.H. Dederichs, and N. Stefanou, Computational Materials Science 8, 131 (1997)
   
24.

Magnetic 4d monoatomic rows on Ag vicinal surfaces.

  V. Bellini, N. Papanikolaou, R. Zeller, and P.H. Dederichs:Phys. Rev. B 64, 094403 (1-8) (2001)
   
23.

Scanning tunneling spectra of impurities in the Fe (001) surface

  N. Papanikolaou, B. Nonas, S. Heinze, R. Zeller, and P.H. Dederichs: Phys. Rev. B, 62, 11118-11125 (2000)
   
22.

Complex band structure and tunneling throught ferromagnet-insulator-ferromagnet junctions

  Ph. Mavropoulos, N. Papanikolaou, and P.H. Dederichs:Phys. Rev. Lett. 85, 1088-1091 (2000)
   
22.

Lattice Relaxations and Hyperfine Fields of Heavy Impurities in Fe

  T. Korhonen A. Settels, N. Papanikolaou, R. Zeller, and P.H. Dederichs:Phys. Rev. B. 62, 452-460 (2000)
   
21.

In-donor complexes in Si and Ge: structure and electric field gradients

  A. Settels, K. Schroeder, T. Korhonen, N. Papanikolaou, M. Aretz, R. Zeller, and P.H. Dederichs:Solid State Comm. 113, 239-243 (2000)
   
20.

Ab Initio study of acceptor-donor complexes in silicon and germanium.

  A. Settels, T. Korhonen, N. Papanikolaou, R. Zeller, and P.H. Dederichs: Phys. Rev. Lett. 83, 4369-4372 (1999)
   
19.

First principles calculations for vacancy formation energies in Cu and Al: non local effect beyond the LSDA and lattice distortion.

  T. Hoshino, N. Papanikolaou, R. Zeller, P.H. Dederichs, M. Asato, T. Asada, and N. Stefanou: Comp. Mat. Sci. 14, 56-91 (1999)
   
18. Ab-initio calculations of forces and lattice relaxations in metallic alloys.
 

T. Korhonen, N. Papanikolaou, R. Zeller and P.H. Dederichs: Phil. Mag. B 78, 429-433 (1998)

   
17.

Low-Field Hall coefficient of Al-4d dilute alloys: the role of the anisotropic impurity scattering.

  Ph. Mavropoulos, N. Papanikolaou, N. Stefanou, G. Apostolopoulos, N. Boukos, and C. Papastaikoudis: Solid State Commun. 106, 405-408 (1998)
   
16.

Magnetic impurity states in simple metals: a study of the spin-polarization energy.

  Ph. Mavropoulos, N. Stefanou, and N. Papanikolaou: Phys. Rev. B 58, 1096-1099 (1998)
   
15.

Ab-initio study of the structural lattice distortion and it' s influence on the magnetic properties of metallic dilute alloys.

  N. Papanikolaou, R. Zeller, P.H. Dederichs, and N. Stefanou: Comp. Mat. Sci. 8, 131-135 (1997)
   
14.

Lattice distortion in Cu-based dilute alloys: A first principles study by the KKR Green function method.

  N. Papanikolaou, R. Zeller, P.H. Dederichs, and N. Stefanou: Phys. Rev. B 55, 4157-4167 (1997)[abstract]
   
13. Lattice relaxations around impurities in metals.
  Papanikolaou, N. Stefanou, R. Zeller, P.H. Dederichs :Proceedings of the NATO ASI "Stability of Alloys", 419 (1996)
   
12.

Low-temperature thermopower of Al-based dilute alloys.

  Ph. Mavropoulos, N. Papanikolaou and N. Stefanou: J. Phys. Condens. Matter 7, 4665-4671 (1995)[abstract]
   
11.

Magnetic behaviour of transition-metal impurities in alkali-earth metals.

N. Papanikolaou, N. Stefanou, R. Zeller and P.H. Dederichs:Phys. Rev. B. 51, 11473-11478 (1995)[abstract]
   
10.

Calculation of the residual resistivity and the low field Hall coefficient of 3d and 4sp impurities in aluminium.

  N. Papanikolaou, N. Stefanou and C. Papastaikoudis:Phys. Rev. B 49, 16117-16122 (1994)
[abstract]
   
9.

Magnetic impurities in simple metals.

  N. Stefanou, N. Papanikolaou, R. Zeller and P.H. Dederichs: Physica Scripta 20, 445-448 (1994)
   
8.

Green's function calculations of the hyperfine interaction of impurities in metals and for metallic interfaces.

P.H. Dederichs, P. Lang, K. Willenborg, R. Zeller, N. Papanikolaou and N. Stefanou: Hyp. Int. 78, 341-359 (1993)
   
7.

The formation of localized moments in dilute alloys: a critical behavior.

N. Stefanou and N. Papanikolaou: J. Phys.: Cond. Matter 5, 5663-5666 (1993)[abstract]
   
6.

Observation of a resonance in the spin-orbit scattering of 5sp impurities in Mg and Cu.

S. Geier, G. Bergmann, N. Papanikolaou, N. Stefanou and P.H. Dederichs:Solid State Commun. 87, 471-474 (1993)
   
5.

Can 5d and sp impurities be magnetic?

N. Papanikolaou, N. Stefanou, R. Zeller and P.H. Dederichs: Phys. Rev. Lett. 71, 629-632 (1993)
   
4.

First principles calculations of the spin-orbit scattering cross section of sp impurities in Mg.

N. Papanikolaou, N. Stefanou, P.H. Dederichs, S. Geier and G. Bergmann, Phys. Rev. Lett. 69, 2110-2113 (1992)
[abstract]
   
3. Local spin-moments of transition metal impurities in monovalent simple metal hosts.
 

N. Papanikolaou, N. Stefanou, R. Zeller and P.H. Dederichs :Phys. Rev. B 46, 10858-10865 (1992)
[abstract]

   
2. Solute-vacancy interactions in Cu and Ag
  N. Stefanou, N. Papanikolaou and P.H. Dederichs : J. Phys.:Cond. Matter 3, 8793-8801 (1991)[abstract]
     
1. Formation of local spin-moments of 3d impurities diluted in noble and alkali metal hosts
  N. Stefanou, N. Papanikolaou, J. Phys: Cond. Matter 3,3777-3784 (1991)
[abstract]





Nikos Papanikolaou


Intitute of Microelectronics,NCSR Demokritos, Ag. Paraskevi, GR-153 10, Athens Greece.
Last update 25 Jan 2011