Influence of europium doping on magnetic properties of 3D topological semimetal Cd3As2 from ESR data
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GORYUNOV, Yu., NATEPROV, Alexander. Influence of europium doping on magnetic properties of 3D topological semimetal Cd3As2 from ESR data. In: Physics of the Solid State, 2018, nr. 1(60), pp. 68-74. ISSN 1063-7834. DOI: https://doi.org/10.1134/S1063783418010109
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Physics of the Solid State
Numărul 1(60) / 2018 / ISSN 1063-7834

Influence of europium doping on magnetic properties of 3D topological semimetal Cd3As2 from ESR data

DOI: https://doi.org/10.1134/S1063783418010109

Pag. 68-74

Goryunov Yu.1, Nateprov Alexander2
 
1 Kazan E.K. Zavoisky Physical-Technical Institute, Kazan,
2 Institute of Applied Physics, Academy of Sciences of Moldova
 
Disponibil în IBN: 22 februarie 2018


Rezumat

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.