Optical Second-Harmonic Polarimetry on Hf0.5Zr0.5O2/La0.67Sr0.33MnO3 Interfaces
Source abstract
Abstract
The interface-induced second-harmonic generation from ferroelectric hafnium–zirconium oxide (Hf0.5Zr0.5O2) epitaxial thin films, buffered with a La0.67Sr0.33MnO3 bottom electrode, is analyzed as a function of input and output polarization angles and the azimuthal angle of the sample for several film thicknesses. It is shown that the signal is generated mainly from the buffer side of the interface, rather than from the ferroelectric side. However, the ferroelectric film affects significantly the nonlinear optical properties of the underlying ferromagnetic buffer electrode. Several mechanisms accounting for these observations are discussed, from oxygen migration, to an electrostatic effect, including a possible modulation of the La0.67Sr0.33MnO3 magnetization by the upper ferroelectric film.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Ferroelectric and Negative Capacitance Devices · Electronic and Structural Properties of Oxides · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Dipartimento di Fisica “E. Pancini”, Università Federico II, Monte S. Angelo, Via Cinthia, 80126 Napoli, Italy
CNR-SPIN, Complesso Universitario di Monte S. Angelo, Via Cinthia, 80126 Napoli, Italy
Institut de Ciència de Materials de Barcelona ICMAB - CSIC, Campus UAB, Bellaterra 08193, Barcelona, Spain
CNR-ISASI, Via Campi Flegrei 34, 80078 Pozzuoli NA, Italy
Funding
Ministero dell?Istruzione, dell?Universit? e della Ricerca · Ministerio de Ciencia e Innovaci?n
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