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Defect induced ferromagnetic ordering and room temperature negative magnetoresistance in MoTeP. 2021
Debarati Pal, and
Shiv Kumar, and
Prashant Shahi, and
Sambhab Dan, and
Abhineet Verma, and
Vinod K Gangwar, and
Mahima Singh, and
Sujoy Chakravarty, and
Yoshiya Uwatoko, and
Satyen Saha, and
Swapnil Patil, and
Sandip Chatterjee
Department of Physics, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India.
The magneto-transport, magnetization and theoretical electronic-structure have been investigated on type-II Weyl semimetallic MoTeP. The ferromagnetic ordering is observed in the studied sample and it has been shown that the observed magnetic ordering is due to the defect states. It has also been demonstrated that the presence of ferromagnetic ordering in effect suppresses the magnetoresistance (MR) significantly. Interestingly, a change-over from positive to negative MR is observed at higher temperature which has been attributed to the dominance of spin scattering suppression.
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