• Effect of minor Co additions on the crystallization and magnetic properties of Fe(Co)NbBCu alloys 

    Torrens Serra, Joan; Bruna Escuer, Pere; Roth, Segmar; Rodríguez Viejo, Javier; Clavaguera Mora, Maria Teresa (2010)
    Accés obert
    The effect of partial replacement of Fe by Co (up to 8 %) on thermal stability, structure and magnetic properties of FeNbBCu alloys has been explored in this paper. The results indicate that Co reduces the stability against ...
  • Electron spin resonance on single-walled carbon nanotubes obtained from different sources 

    Ferrer Anglada, Núria; Abiad Monge, Aida; Roth, Segmar (2010-12)
    Accés restringit per política de l'editorial
    Weused electron spin resonance (ESR) to analyze several kinds of single-walled carbon nanotubes (SWNTs) synthesized by different methods. We observed that ESR is a sensitive probe that can be used to observe major differences ...
  • Flexible, transparent electrodes using carbon nanotubes 

    Ferrer Anglada, Núria; Iqbal, Muhammad Zahir; Pérez Puigdemont, Jordi; Figueras, Jordi; Roth, Segmar (2012-12-10)
    Accés obert
    We prepare thin single-walled carbon nanotube networks on a transparent and flexible substrate with different densities, using a very simple spray method. We measure the electric impedance at different frequencies Z(f) in ...
  • Single-walled carbon nanotubes characterization by Electron Spin Resonance spectroscopy 

    Abiad Monge, Aida; Pérez Puigdemont, Jordi; Ferrer Anglada, Núria; Roth, Segmar (2010)
    Text en actes de congrés
    Accés restringit per acord de confidencialitat
    Carbon nanotubes (CNTs) are interesting candidates for the development of new electronic devices and sensors due to their small size and their mechanical, optical and electrical properties [1-6]. Well-characterized ...