151Eu Mössbauer study of magnetic ordering in flux-grown ferromagnetic and antiferromagnetic forms of EuCd2As2
Source abstract
Abstract
EuCd2As2 is a remarkably complex magnetic semimetal that may behave as a topological insulator or host two pairs of Weyl points, depending on the growth conditions and the final magnetic state. Both antiferromagnetic (AFM) and ferromagnetic (FM) forms have been grown, and we show here, using 151Eu Mössbauer spectroscopy, that the differences between the AFM and FM forms extend well beyond their ground state magnetic structures. Whereas the AFM form undergoes a conventional AFM → paramagnetic transition on warming, the FM form passes through a complex incommensurate modulated state before becoming paramagnetic.
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Research context
OpenAlex topics: Topological Materials and Phenomena · Iron-based superconductors research · Rare-earth and actinide compounds
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Affiliations
Physics Department and Centre for the Physics of Materials, McGill University 1 , 3600 University Street, Montreal, Quebec H3A 2T8, Canada
Ames National Laboratory, Iowa State University 2 , Ames, Iowa 50011, USA
Department of Physics and Astronomy, Iowa State University 3 , Ames, Iowa 50011, USA
Funding
doe · Natural Sciences and Engineering Research Council of Canada · fqrnt · cats
References (15)
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