Cadmium arsenide (Cd$_3$As$_2$) is a Dirac semimetal intensively investigated in the last decade due to its stability and high mobility. Cd$_3$As$_2$ shows large negative magnetoresistance (NMR) over a wide range of magnetic field. Such NMR has been analysed in the framework of localized magnetic field and quantum interference theories. At low magnetic fields, quantum interference theory is consistent with the experimental data which can be described by variable range hopping (VRH) in the presence of a soft Coulomb gap (Efros–Shklovskii VRH). On the other hand, at moderate magnetic fields, the data are well described by the localized magnetic moment theory and the NMR is well approximated by the Langevin function.
Volume 45, 2022
Continuous Article Publishing mode
Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020
Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020
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