Sergio O. Valenzuela

Institut Català de Nanociència i Nanotecnologia (ICN2)

Engineering Sciences

Sergio O. Valenzuela is an ICREA Prof. at the Catalan Institute of Nanoscience and Nanotechnology (ICN2), The Barcelona Institute of Science and Technology. He leads the Physics and Engineering of Nanodevices group, which focuses on quantum transport, spintronics, and thermoelectricity in materials such as graphene and topological insulators. He has pioneered the use of nonlocal devices to study the spin Hall effect, thermopiles to isolate the magnon drag in ferromagnetic materials, and implemented novel qubit control and spectroscopy methods. Prof. Valenzuela received a PhD in Physics at the University of Buenos Aires, and held research positions at Harvard University and MIT. He is recipient of the Giambiagi prize, the IUPAP Young Scientist Prize and a ERC Consolidator Grant. He is also Principal Investigator of the Graphene Flagship and Grantor of the ICN2 “Severo Ochoa” Centre of Excellence Project.

Research interests

In recent years, electronic devices have been scaled down to nanoscale sizes where quantum effects begin to interfere with their functioning. Materials and devices in such scales often present unexpected and unintuitive physical properties. Prof. Valenzuela’s Group focus is the development of novel devices, which are designed to gain insight of specific physical properties of the system components, relevant both for fundamental reasons and applications at the nanoscale. The current research interests of the group span Spintronics, Spin Caloritronics, and quantum transport in particular in graphene and topological insulators. For more information see:

Selected publications

– Raes B, Scheerder JE, Costache MV, Bonell F, Sierra JF, Cuppens J, Van de Vondel J & Valenzuela SO 2016, ‘Determination of the spin-lifetime anisotropy in graphene using oblique spin precession’, Nature Communications, 7, 11444.

– Van Tuan D, Marmolejo-Tejada JM, Waintal X, Nikolic BK, Valenzuela SO Roche S 2016, ‘Spin Hall Effect and Origins of Nonlocal Resistance in Adatom-Decorated Graphene’, Physical Review Letters, 117, 17, 176602.

Selected research activities

Selected Invited/Plenary Talks

  • ICTP Workshop on Driven Quanttum Systems, Bariloche, Argentina, December 2016
  • Recent Progress in Spintronics of 2D Materials, Hsinchu, Taiwan, November 2016
  • Functional Properties of Two-Dimensional Materials Workshop, Leuven, Belgium, October, 2016
  • Simposio Internacional: Materiales Bidimensionales (MIT-Spain Cooperation). Fundación Areces, Madrid, Spain, July, 2016
  • Graphene 2016, Genova, Italy, April, 2016

Selected Schools

  • ESONN’16 European School on Nanosciences & Nanotechnologies (Spintronics), Grenoble, France
  • Scientific Advisory Committee Member of the European Schooll of Magnetism (ESM)

Co-Editor Focus Issue on Tailorin Spin-Dependen Transport in 2D Materials (2D Materials Journal;

Scientific Committee Member of New Trends of Topological Insulators Workshop

Principal Investigator of ERC Consolidator Grant SPINBOUND

Principal Investigator within the Graphene Flagship