Observation of Griffiths-like phase in the quaternary Heusler compound NiFeTiSn
| Autor: | Snehashish Chatterjee, Saurav Giri, Subham Majumdar, Prabir Dutta, Pintu Singha, Aritra Banerjee |
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| Rok vydání: | 2022 |
| Předmět: |
Condensed Matter - Strongly Correlated Electrons
Condensed Matter - Materials Science Condensed Matter::Materials Science Strongly Correlated Electrons (cond-mat.str-el) Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Condensed Matter::Strongly Correlated Electrons General Materials Science Condensed Matter Physics Condensed Matter::Disordered Systems and Neural Networks |
| Zdroj: | Journal of Physics: Condensed Matter. 34:295803 |
| ISSN: | 1361-648X 0953-8984 |
| DOI: | 10.1088/1361-648x/ac6e1f |
| Popis: | The quaternary Heusler compound NiFeTiSn can be considered to be derived from the exotic pseudogap-compound Fe2TiSn by the replacement of one Fe atom by Ni. In contrast to Fe2TiSn, which shows a disorder-induced ferromagnetic phase, the ground state of NiFeTiSn is antiferromagnetic with the signature of spin canting. Interestingly, NiFeTiSn shows a Griffiths-like phase characterized by isolated ferromagnetic clusters before attaining the antiferromagnetic state. The Griffiths-like phase is possibly associated with the antisite disorder between Fe and Ti sites as evident from our powder X-ray diffraction study. The compound also shows rather an unusual temperature dependence of resistivity, which can be accounted for by the prevailing structural disorder in the system. NiFeTiSn turned out to be a rare example where a Griffiths-like phase is observed in a semiconducting 3d transition metal-based intermetallic compound with an antiferromagnetic ground state. Comment: 12 pages, 9 figures |
| Databáze: | OpenAIRE |
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