Massimiliano Stengel

Massimiliano Stengel

Institut de Ciència de Materials de Barcelona

Experimental Sciences & Mathematics

Massimiliano Stengel graduated in Physics at the University of Trieste (1999) and received his PhD in Science from the Swiss Polytechnic School of Lausanne (EPFL) in 2004. From February 2005 to April 2009 he was a postdoctoral researcher in the group of Prof. Nicola Spaldin at the Materials Department (UC Santa Barbara), and from May to September 2009 at CECAM (EPFL) under the supervision of Prof. Wanda Andreoni. From February 2010 to September 2011 he worked at ICMAB in Barcelona as a "Ramón y Cajal" fellow, before joining ICREA as a Research Professor in October 2011.

Research interests

My research develops and uses frontier electronic-structure methods to tackle key fundamental and technological questions in ferroelectricity, magnetism, surface science and metal/oxide interfaces. In the past few years I have focused on perovskite thin films, and in particular on understanding how the reduced size affects their functional properties. I am currently interested in the study of novel functionalities in oxide-based systems (e.g. flexoelectricity, magnetoelectric effects, confined electron gases, improper ferroelectricity) and in development of accurate modeling strategies to bridge the gap between the microscopic and macroscopic worlds.

Selected publications

– Schiaffino A, Dreyer CE, Vanderbilt D & Stengel M 2019, ‘Metric wave approach to flexoelectricity within density functional perturbation theory’, Physical Review B, 99, 8, 085107.

– Schoenherr P, Shapovaloy K, Schaab J, Yan Z, Bourret ED, Hentschel M, Stengel M, Fiebig M, Cano A & Meier D 2019, ‘Observation of Uncompensated Bound Charges at Improper Ferroelectric Domain Walls’, Nano Letters, 19, 3, 1659 – 1664.

– Royo M & Stengel M 2019, ‘First-Principles Theory of Spatial Dispersion: Dynamical Quadrupoles and Flexoelectricity’, Physical Review X, 9, 2, 021050.

– Junquera J, Garcia-Fernandez P & Stengel M 2019, ‘Mechanisms to enhance the capacitance beyond the classical limits in capacitors with free-electron-like electrodes’, Physical Review B, 99, 23, 235127.

– Menendez E, Sireus V, Quintana A, Fina I, Casals B, Cichelero R, Kataja M, Stengel M, Herranz G, Catalan G, Baro MD, Surinach S & Sort 2019, ‘Disentangling Highly Asymmetric Magnetoelectric Effects in Engineered Multiferroic Heterostructures, Physical Review Applied 12, 014041.

– Schaab J, Shapovalov K, Schoenherr P, Hackl J, Khan MI, Hentschel M, Yan Z, Bourret E, Schneider CM, Nemsk S, Stengel M, Cano A & Meier D 2019, ‘Electrostatic potential mapping at ferroelectric domain walls by low-temperature photoemission electron microscopy, Applied Physics Letters 115, 122903.

Selected research activities

Invited talks:

  • New functionalities from gradients: Flexoelectricity and more. European Meeting on Ferroelectricity (EMF), Lausanne (July 2019)
  • New functionalities from gradients: Flexoelectricity and more. International Workshop on Topological Structures in Ferroic Materials – TOPO2019, Prague (Czech Republic).
  • Lautrec. Alessandro De Vita: A Celebration of his Life and Work. King’s College (London), May 2019.
  • First-principles theory of spatial dispersion effects. ABINIT developer workshop, Louvain-la-Neuve, May 2019.