Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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Materials Map under construction

The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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1.080 Topics available

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977 Locations available

693.932 PEOPLE
693.932 People People

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Naji, M.
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Sanvito, S.

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (9/9 displayed)

  • 2020First-Principles Study of Electromigration in the Metallic Liquid State of GeTe and Sb2Te3 Phase-Change Compounds8citations
  • 2016Observation of van der Waals driven self-assembly of MoSI nanowires into a low-symmetry structure using aberration-corrected electron microscopy42citations
  • 2013Ground state of a spin-crossover molecule calculated by diffusion Monte Carlo17citations
  • 2013DFT structural investigation on Fe(1,10-phenanthroline)2(NCS)2 spin crossover moleculecitations
  • 2009MgN: A possible material for spintronic applications30citations
  • 2006Magnetomechanical interplay in spin-polarized point contacts2citations
  • 2006Spin and molecular electronics in atomically-generated orbital landscapes.629citations
  • 2005Current-driven magnetic rearrangements in spin-polarized point contacts23citations
  • 2005Point-contact Andreev reflection in ferromagnet/superconductor ballistic nanojunctions23citations

Places of action

Chart of shared publication
Gabardi, S.
1 / 1 shared
Galante, M.
1 / 2 shared
Cobelli, M.
1 / 2 shared
Bernasconi, M.
1 / 16 shared
Dvorsek, D.
1 / 1 shared
Nellist, P.
1 / 14 shared
Cosgriff, E.
1 / 3 shared
Compagnini, G.
1 / 5 shared
Stolojan, V.
1 / 17 shared
Vengust, D.
1 / 1 shared
Blau, W.
1 / 3 shared
Sloan, J.
1 / 13 shared
Pennycook, S.
1 / 3 shared
Carey, J.
1 / 2 shared
Mihailovic, D.
1 / 2 shared
Nicolosi, V.
1 / 2 shared
Coleman, J.
1 / 6 shared
Krishnamurthy, S.
1 / 9 shared
Green, M.
1 / 20 shared
Alfe, D.
1 / 11 shared
Droghetti, A.
3 / 6 shared
Chis, V.
1 / 3 shared
Rungger, I.
1 / 5 shared
Morari, C.
1 / 3 shared
Isai, R.
1 / 1 shared
Baadji, N.
1 / 1 shared
Sanchez, C. G.
1 / 1 shared
Stamenova, M.
2 / 2 shared
Todorov, Tchavdar
2 / 2 shared
Sahoo, Sudhakar
1 / 1 shared
Lambert, Colin John
2 / 31 shared
Suarez, V. Garcia
1 / 1 shared
Bailey, S.
1 / 1 shared
Rocha, A. R.
1 / 1 shared
Ferrer, J.
1 / 3 shared
Taddei, F.
1 / 1 shared
Chart of publication period
2020
2016
2013
2009
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2005

Co-Authors (by relevance)

  • Gabardi, S.
  • Galante, M.
  • Cobelli, M.
  • Bernasconi, M.
  • Dvorsek, D.
  • Nellist, P.
  • Cosgriff, E.
  • Compagnini, G.
  • Stolojan, V.
  • Vengust, D.
  • Blau, W.
  • Sloan, J.
  • Pennycook, S.
  • Carey, J.
  • Mihailovic, D.
  • Nicolosi, V.
  • Coleman, J.
  • Krishnamurthy, S.
  • Green, M.
  • Alfe, D.
  • Droghetti, A.
  • Chis, V.
  • Rungger, I.
  • Morari, C.
  • Isai, R.
  • Baadji, N.
  • Sanchez, C. G.
  • Stamenova, M.
  • Todorov, Tchavdar
  • Sahoo, Sudhakar
  • Lambert, Colin John
  • Suarez, V. Garcia
  • Bailey, S.
  • Rocha, A. R.
  • Ferrer, J.
  • Taddei, F.
OrganizationsLocationPeople

article

Point-contact Andreev reflection in ferromagnet/superconductor ballistic nanojunctions

  • Lambert, Colin John
  • Taddei, F.
  • Sanvito, S.
Abstract

<p>A critical analysis of point-contact Andreev reflection (PCAR) in ferromagnet/superconductor ballistic junctions is presented, based on tight-binding Hamiltonians with s, p and d orbitals and material-specific parameters. By accurately modeling the band structure of the bulk materials, we show that to reproduce the measured differential conductance of Cu/Pb and Co/Pb nanocontacts(1,2) one needs a detailed understanding of interface parameters which goes beyond simple averages of bulk matrix elements. As an example of how such a modification of surface parameters can affect spin-polarized transport, we explore the effect of an enhancement of the surface magnetization and show that this can significantly improve agreement with experiment. We also demonstrate that in general the spin polarization P of the junction may be different from the bulk polarization 15 of the magnetic metal used. For bulk Co we find (P) over bar = -0.4, whereas for the Co/Pb interface P = +0.4 and for the Co/Ir interface P = -0.01.</p>

Topics
  • impedance spectroscopy
  • surface
  • experiment
  • magnetization
  • band structure
  • spin polarization