High temperature quantum tunnelling of magnetization and thousand kelvin anisotropy barrier in a Dy<sub>2</sub> single-molecule magnet
Haipeng Wu, Min Li, Zhengqiang Xia, Vincent Montigaud, Olivier Cador, Boris Le Guennic, Hongshan Ke, Wenyuan Wang, Gang Xie, Sanping Chen, Shengli Gao
Abstract
We report here a dinuclear DyIII iodine-bridged single-molecule magnet self-assembled by cis/trans coordination chemistry that displays a large anisotropy barrier of ca. 1300 K and a hysteresis opening temperature of 16 K. High temperature quantum tunnelling of magnetization is observed up to 56 K in zero-field and explained by the combination of the large anisotropy barrier and the local transverse field at the trans site. The results provide a model for thorough understanding of the effect of electronic structure on the magnetic behavior of lanthanide complexes.
Topics & Concepts
Quantum tunnellingMagnetizationAnisotropyCondensed matter physicsMolecular magnetsHysteresisMagnetic anisotropyMagnetMagnetic fieldCrystal (programming language)Materials scienceChemistryPhysicsOpticsQuantum mechanicsProgramming languageComputer scienceMagnetism in coordination complexesLanthanide and Transition Metal ComplexesAdvanced NMR Techniques and Applications