Growth single crystals and investigation of superconducting topological properties in metal transition dichalcogenides

• Grant number: 19/14359-7
• Support Opportunities: Regular Research Grants
• Start date: December 01, 2019
• End date: November 30, 2021
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Antonio Jefferson da Silva Machado
• Grantee: Antonio Jefferson da Silva Machado
• Host Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil

Abstract

This research project is about the growth of high-quality single crystals by the self-flow method and by the vapor method of dichalcogenides that crystallize in the CdI2 prototype. Preliminary results shown in this plan suggest that it is possible to grow high-quality crystals by these methods represented by a member of the family which is Ni0.02ZrTe2. Boundary structure calculations, as well as some results reported in the literature, show that this type of prototype presents a non-trivial topology and, in this sense, the superconductivity from this prototype can be a clear example of non-artificial topological superconductors. In addition to these aspects relevant to Condensed Matter Physics, the plan presented below is intended to foster Ph.D., Master's and Scientific undergraduate students who are currently working in our Lorena Research Group at EEL-USP. (AU)

Scientific publications

(5)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE FARIA, L. R.; FERREIRA, P. P.; CORREA, L. E.; ELENO, L. T. F.; TORIKACHVILI, M. S.; MACHADO, A. J. S.. Possible multiband superconductivity in the quaternary carbide YRe2SiC. SUPERCONDUCTOR SCIENCE & TECHNOLOGY, v. 34, n. 6, JUN 2021. (16/11774-5, 19/05005-7, 19/14359-7, 19/17878-5, 20/08258-0)

FERREIRA, P. P.; MANESCO, A. L. R.; DORINI, T. T.; CORREA, L. E.; WEBER, G.; MACHADO, A. J. S.; ELENO, L. T. F.. Strain engineering the topological type-II Dirac semimetal NiTe2. PHYSICAL REVIEW B, v. 103, n. 12, p. 13-pg., 2021-03-15. (19/14359-7, 16/10167-8, 19/05005-7, 20/08258-0, 19/07082-9, 18/08819-2, 18/10835-6)

BHATTACHARYYA, A.; FERREIRA, P. P.; PANDA, K.; MASUNAGA, S. H.; DE FARIA, L. R.; CORREA, L. E.; SANTOS, F. B.; ADROJA, D. T.; YOKOYAMA, K.; DORINI, T. T.; et al. Electron-phonon superconductivity in C-doped topological nodal-line semimetal Zr5Pt3: a muon spin rotation and relaxation (mu SR) study. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 34, n. 3, JAN 19 2022. (19/14359-7, 19/05005-7, 18/08819-2, 13/07296-2, 20/08258-0)

CORREA, LUCAS E.; DE FARIA, LEANDRO R.; CARDOSO, RENNAN S.; CHAIA, NABIL; DA LUZ, MARIO S.; TORIKACHVILI, MILTON S.; MACHADO, ANTONIO J. S.. Growth of pure and intercalated ZrTe2, TiTe2 and HfTe2 dichalcogenide single crystals by isothermal chemical vapor transport. Journal of Crystal Growth, v. 595, p. 4-pg., 2022-10-01. (18/08819-2, 19/14359-7)

CORREA, LUCAS; FERREIRA, PEDRO S.; DE FARIA, LEANDRO R.; DORINI, THIAGO T.; LUZ, MARIO S. DA; FISK, ZACHARY; TORIKACHVILI, MILTON S.; ELENO, LUIZ T. F.; MACHADO, ANTONIO J. S.. Evidence for multiband superconductivity and charge density waves in Ni-doped ZrTe2. Journal of Alloys and Compounds, v. 907, p. 9-pg., 2022-03-15. (19/14359-7, 18/08819-2, 18/10835-6, 19/05005-7, 20/08258-0)