2020•Chemistry - A European JournalOpen access

Cover Feature: A Delicate Balance between Antiferromagnetism and Ferromagnetism: Theoretical and Experimental Studies of A2MRu5B2 (A=Zr, Hf; M=Fe, Mn) Metal Borides (Chem. Eur. J. 9/2020)

Pritam Shankhari, Nika G. Bakshi, Yuemei Zhang, Dejan Stekovic, Mikhail E. Itkis, Boniface P. T. Fokwa

Abstract

A balancing act between antiferromagnetism and ferromagnetism, as shown in the cover artwork, occurs in A2MRu5B2 (A=Zr/Hf; M=Fe/Mn) as a result of highly field-dependent magnetic interactions between ferromagnetic Fe/Mn chains. DFT calculations predict antiferromagnetism (AFM) in the Fe-based phases but competing ferromagnetism (FM) and antiferromagnetism in Mn-based ones. Experiments subsequently found a strong field-dependence of the magnetic transitions in all compounds. More information can be found in the Full Paper by B. P. T. Fokwa, et al. on page 1979.

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Key concepts: Antiferromagnetism, Ferromagnetism, Condensed matter physics, Cover (algebra), Field (mathematics), Materials science, Magnetic field, Crystallography