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PhD Theses

Arnau Romaguera will defend his PhD Thesis on 13 March 2023 at ICMAB

The PhD researcher Arnau Romaguera Camps from the Crystallography of Magnetic and Electronic Oxides and Surfaces (CMEOS) group at ICMAB-CSIC, will defend his PhD thesis on Monday, 13 March 2023 at 11:30 AM at ICMAB.

07 March 2023

High Tc Magnetic Spirals and Fe-based Frustrated Multiferroics


Arnau Romaguera Camps, Crystallography of Magnetic and Electronic Oxides and Surfaces (CMEOS) group at ICMAB-CSIC

Date: Monday, 13 March 2023
Time: 11:30 AM
Venue: Institut de Ciència de Materials de Barcelona (ICMAB, CSIC) - Sala d'Actes Carles Miravitlles


Multiferroic materials with magnetoelectric coupling are promising candidates for low-energy switching in data storage devices and might lead to ultra-low-power electronics. However, magnetoelectric multiferroics are rare because the mechanisms generating electric and magnetic polarization are often mutually exclusive. This research focuses on two specific ferrite systems: YBaCuFeO5 and ε-Fe2O3, whose attractive magnetic and ferroic properties have the potential to be exploited above room temperature (RT).


  • José Luis García-Muñoz, CMEOS group, ICMAB-CSIC
  • Javier Herrero-Martín, ALBA Synchrotron
PhD Comittee:
  • President: Luis Fernández Barquín, Universidad de Cantabria, Spain
  • Secretary: Arantxa Fraile Rodríguez, Universitat de Barcelona, Spain
  • Vocal: Pascal Manuel, ISIS Neutron & Muon Facility (STFC Rutherford Appleton Lab), United Kingdom 

University: Universitat Autònoma de Barcelona (UAB)
PhD Programme: Materials Science

fig toc romaguera

Role of Fe/Cu chemical disorder on the incommensurate spiral phase in YBCFO. Temperature evolution of the neutron diffraction intensities and magnetic phase diagram. | Arnau Romaguera

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