Cnr SPIN - News & Events

109° Congress of the Italian Physical Society – SALERNO EDITION

The 109° Congress of the Italian Physical Society, this year, has been organized by the Physics Department of the University of Salerno (Prof. Salvatore De Pasquale, president of the Organizing Committee) and CNR-SPIN Salerno (Dr. Nadia Martucciello, vice-president). The event will take place at the Fisciano Campus from 11th to 15th September 2023. The Congress, which will gather about 800 Italian physicists for the whole week, will represent the meeting point of various cultural and scientific facets of contemporary physics. The Congress, each day, has various plenary general sessions and seven parallel ones, to guarantee an ample scenery of the Italian research in physics and a common background for the attending researchers.

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"Near-90° Switch in the Polar Axis of Dion–Jacobson Perovskites by Halide Substitution" published in JACS

An international collaboration, with A. Stroppa (CNR-SPIN), K.P. Loh (NUS), K. Leng (PolyU) as corresponding authors, showed that the polar axis in ferroelectric 2D Dion-Jacobson (DJ) phase hybrid organic-inorganic perovskites (HOIPs) can be switched by almost 90° using halide substitution. In DJ phase (4AMP)PbX4 ferroelectric system (4AMP = 4-(Aminomethyl)piperidine, X= I and Br), by substituting the iodide with bromide element in perovskite layer, the obtained [PbBr4]2- compound presented In-Plane (IP) polar axis, which is in contrast to the all previously reported [PbI4]2- counterparts with Out-of-Plane (OOP) polar axis. (DOI: 10.1021/jacs.3c03921 - https://pubs.acs.org/doi/10.1021/jacs.3c03921?ref=PDF).

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Magneto-Optical Kerr effect in an Anti-ferromagnetic Polar Heterostructure

An international team, including researchers from CNR-SPIN, Seoul National University, The University of Hong Kong, University of L’Aquila, Southeast University studied the magneto-optical properties of multiferroic heterostructure. As reported in ACS Applied Materials & Interfaces (ACS Appl. Mater. Interfaces 2023, 15, 18, 22282-22290; https://doi.org/10.1021/acsami.3c02680), have shown an unusual magneto-optical Kerr effect (a phenomenon where the reflected light shows a polarization change upon reflection from a structure) in a antiferromagnetic and polar heterostructure, namely CrI3/In2Se3/CrI3.

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Unveiled new paths to design nanoscale patterns in Mott insulators

An international team which includes a large group of researchers from CNR-SPIN, together with scientists of MagTop Research Centre in Warsaw, University of Salerno, and University of Antwerp has uncovered new quantum effects that can control the nanoscale pattern formation in Mott crystals. The discovery of the physical laws underlying these properties could be used for the development of room temperature non-volatile electronics based on voltage-controlled nanometric phases and, in perspective, could be integrated with photonic functional devices too.

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