Influence of europium doping on magnetic properties of 3D topological semimetal Cd3As2 from ESR data
| Autor: | Yu. V. Goryunov, A. N. Nateprov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Magnetoresistance Magnetism chemistry.chemical_element Weyl semimetal 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Topology 01 natural sciences Magnetic susceptibility Semimetal Electronic Optical and Magnetic Materials Condensed Matter::Materials Science chemistry Ferromagnetism 0103 physical sciences Antiferromagnetism Condensed Matter::Strongly Correlated Electrons 010306 general physics 0210 nano-technology Europium |
| Zdroj: | Physics of the Solid State. 60:68-74 |
| ISSN: | 1090-6460 1063-7834 |
| Popis: | Influence of weak doping by rare-earth elements on magnetic and transport properties of a 3D topological semimetal Cd3As2 was studied experimentally. In particular, the doping by europium causes to change of the magnetoresistance sign from positive to negative. First measurements of electron spin resonance and magnetic susceptibility have shown that there are two types of Eu2+ magnetic ions that occupy the positions of cadmium ions and tetrahedral vacancies and form the ferromagnetic and antiferromagnetic phases, respectively. These facts give an evidence of small-scaled phase separation and a transformation of the Dirac semimetal to a Weyl semimetal induced by magnetic impurities. |
| Databáze: | OpenAIRE |
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