Room temperature magnetoelectric coupling in a molecular ferroelectric ytterbium(III) complex

Jérome Long (1) , Maxim Ivanov (2) , Vladimir Khomchenko (2) , Ekaterina Mamontova (1) , Jean-Marc Thibaud (1) , Jérôme Rouquette (1) , Mickael Beaudhuin (1) , Dominique Granier (1) , Rute A.S. Ferreira (3) , Luis Carlos (4) , Bruno Donnadieu (1) , Marta Henriques (2) , José António Paixão (2) , Yannick Guari (1) , Joulia Larionova (1)

1 ICGM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier
2 Universidade de Coimbra [Coimbra]
3 Department of Physics and CICECO
4 Departemento de Fisica and CICECO

Magnetoelectrical (ME) materials combine magnetic and electric polarizabilities in the same phase. Such systems offer a basis for developing high-density data storage, spintronic or low consumption devices owing to the possibility to trigger one property by the other. Such objectives require a strong interaction between the constitutive properties, a criterion which is rarely met in classical inorganic ME materials at room temperature. We provide evidence of a strong ME coupling in a paramagnetic ferroelectric lanthanide coordination complex with magnetostrictive phenomenon. The properties of this molecular material show it may be competitive to inorganic magnetoelectrics.

Domaines: Chimie de coordination

Jérome Long, Maxim Ivanov, Vladimir Khomchenko, Ekaterina Mamontova, Jean-Marc Thibaud, et al.. Room temperature magnetoelectric coupling in a molecular ferroelectric ytterbium(III) complex. Science, 2020, 367 (6478), pp.671-676. ⟨10.1126/science.aaz2795⟩. ⟨hal-02470126⟩