News (189)

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New significant achievements of SPIN researchers in the second 2022 Call of the Research Projects of National Interest (PRIN)

As for the 1st Call , the evaluation process of 2nd Call for the 2022 “Research Project of National Interest (PRIN)”, being directly related to the National Recovery and Resilience Plan (PNRR), recognized the capability of the SPIN researchers to present innovative proposals. Indeed, seven projects having a SPIN researcher as Principal Investigator were approved, while, in other two funded proposals, SPIN researchers are involved in a CNR UNIT (with a leading role in one case).

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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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