{"id":6462,"date":"2022-12-23T00:00:00","date_gmt":"2022-12-23T08:00:00","guid":{"rendered":"https:\/\/www.hmc.edu\/physics\/research\/publications\/near-room-temperature-magnetoelectric-coupling-via-spin-crossover-in-an-ironii-complex\/"},"modified":"2025-12-19T08:53:14","modified_gmt":"2025-12-19T16:53:14","slug":"near-room-temperature-magnetoelectric-coupling-via-spin-crossover-in-an-ironii-complex","status":"publish","type":"physics_publications","link":"https:\/\/www.hmc.edu\/physics\/research\/publications\/near-room-temperature-magnetoelectric-coupling-via-spin-crossover-in-an-ironii-complex\/","title":{"rendered":"Near-Room-Temperature Magnetoelectric Coupling via Spin Crossover in an Iron(II) Complex"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Magdalena Owczarek, Minseong Lee, Shuanglong Liu, Ella R. Blake, Chloe S. Taylor, Georgia A. Newman, James C. Eckert*, Juan H. Leal, Troy A. Semelsberger, Hai-Ping Cheng, Wanyi Nie, Vivien S. Zapf<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/full\/10.1002\/anie.202214335\">Near-Room-Temperature Magnetoelectric Coupling via Spin Crossover in an Iron(II) Complex<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Angewandte Chemie 136 (22), e202318220 (2024)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Abstract<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Magnetoelectric coupling is achieved near room temperature in a spin crossover FeII molecule-based compound, [Fe(1bpp)2](BF4)2. Large atomic displacements resulting from Jahn\u2013Teller distortions induce a change in the molecule dipole moment when switching between high-spin and low-spin states leading to a step-wise change in the electric polarization and dielectric constant. For temperatures in the region of bistability, the changes in magnetic and electrical properties are induced with a remarkably low magnetic field of 3 T. This result represents a successful expansion of magnetoelectric spin crossovers towards ambient conditions. Moreover, the observed 0.3\u20130.4 mC m\u22122 changes in the H-induced electric polarization suggest that the high strength of the coupling obtained via this route is accessible not just at cryogenic temperatures but also near room temperature, a feature that is especially appealing in the light of practical applications.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Magdalena Owczarek, Minseong Lee, Shuanglong Liu, Ella R. Blake, Chloe S. Taylor, Georgia A. Newman, James C. Eckert*, Juan H. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","publication_author":[14],"class_list":["post-6462","physics_publications","type-physics_publications","status-publish","hentry","publication_author-eckert"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/physics_publications\/6462","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/physics_publications"}],"about":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/types\/physics_publications"}],"author":[{"embeddable":true,"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/users\/1"}],"wp:attachment":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/media?parent=6462"}],"wp:term":[{"taxonomy":"publication_author","embeddable":true,"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/publication_author?post=6462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}