• Article  

      Minority-spin band parameters in a NiMnSb thin film determined by spectral conductivity 

      Grigorescu, C. E. A.; Trodahl, H. J.; Strickland, N. M.; Bittar, A.; Manea, S. A.; Giapintzakis, John; Monnereau, O.; Notonier, R.; Kennedy, V. J. (2004)
      NiMnSb is expected to be a ferromagnetic half metal, an expectation that is based in part on band structure calculations. Here we report optical conductivity studies of the band structure for a film prepared by pulsed laser ...
    • Conference Object  

      Stoichiometry issues in pulsed laser deposition of the ferromagnetic alloy NiMnSb 

      Grigorescu, C. E. A.; Monnereau, O.; Manea, S. A.; Notonier, R.; Klini, A.; Zorba, V.; Manousaki, A.; Giapintzakis, John; Fotakis, C. (Affiliation: NIRDO, BucharestAffiliation: MADIREL, Univ. Provence Centre St. Charles, Marseille, FranceAffiliation: Natl. Inst. Res. Devmt. Mat. Phy., BucharestAffiliation: Foundation for Res. and Technology, HELLAS, Inst. Electron. Structure and Laser, Heraklion, Crete, GreeceCorrespondence Address: Grigorescu, C.E.A.NIRDO, Bucharest, 2002)
      We report on the reproducible growth of stoichiometric thin films of ferromagnetic intermetallic compound NiMnSb by pulsed laser deposition (PLD) on various substrates. The films are grown at moderate temperature (around ...
    • Article  

      Surface particularities in pulsed laser ablation/deposition of the ferromagnetic alloy NiMnSb 

      Grigorescu, C. E. A.; Manea, S. A.; Mitrea, M.; Monnereau, O.; Notonier, R.; Tortet, L.; Keschawarz, R.; Giapintzakis, John; Klini, A.; Zorba, V.; Androulakis, J.; Fotakis, C. (2003)
      In this work we investigate the surface morphology and stoichiometry of the ablated targets employed with pulsed laser deposition (PLD) of thin films of the ferromagnetic half-Heusler alloy NiMnSb. The NiMnSb targets were: ...
    • Article  

      Thickness dependence of Hall transport in Ni1.15Mn 0.85Sb thin films on silicon 

      Branford, W. R.; Clowes, S. K.; Bugoslavsky, Y. V.; Gardelis, S.; Androulakis, J.; Giapintzakis, John; Grigorescu, C. E. A.; Manea, S. A.; Freitas, R. S.; Roy, S. B.; Cohen, L. F. (2004)
      Highly spin polarized Heusler alloys, NiMnSb and Co2MnSi, attract a great deal of interest as potential spin injectors for spintronic applications. Spintronic devices require control of interfacial properties at the ...