Dr
Martina Basini
(ETH Zürich, Physics Department)
The emergence of collective order in matter is among the most fundamental and intriguing phenomena in physics. Recently, the theoretical concept of dynamical multiferroicity has been introduced to describe the emergence of magnetization due to time-dependent electric polarization in non-ferromagnetic materials. Here we provide experimental evidence of room-temperature magnetization in the archetypal paraelectric perovskite SrTiO3 due to this mechanism. We resonantly drive the infrared-active soft phonon mode with an intense circularly polarized terahertz electric field and detect the time-resolved magneto-optical Kerr effect. Our findings show a new path for the control of magnetism, for example, for ultrafast magnetic switches, by coherently controlling the lattice vibrations with light.
Dr
Martina Basini
(ETH Zürich, Physics Department)
Dr
Matteo Pancaldi
(Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy)
Prof.
Alexander V. Balatzky
(NORDITA, Stockholm, Sweden Department of Physics, University of Connecticut, Storrs, CT, USA)
Dr
Björn B. Wehinger
(European Synchrotron Radiation Facility, Grenoble, France)
Dr
Matthias C. Hoffmann
(Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA)
Dr
Mattia Udina
(Department of Physics and ISC-CNR, ‘Sapienza’ University of Rome, Rome, Italy)
Prof.
Stefano Bonetti
(Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Venice, Italy)
Dr
Terumasa Tadano
(Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science, Tsukuba, Japan)
Dr
Vivek Unikandanunni
(Bern University)
There are no materials yet.
