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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Tuning the crystalline electric field and magnetic anisotropy along the CeCuBi2-xSbx series

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Freitas, G. S. [1] ; Piva, M. M. [2, 1] ; Grossi, R. [1] ; Jesus, C. B. R. [3] ; Souza, J. C. [1] ; Christovam, D. S. [1] ; Oliveira, N. F. [4] ; Leao, J. B. [5] ; Adriano, C. [1] ; Lynn, J. W. [5] ; Pagliuso, P. G. [1]
Total Authors: 11
[1] Univ Estadual Campinas, Gleb Wataghin Inst Phys, UNICAMP, BR-13083859 Campinas, SP - Brazil
[2] Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden - Germany
[3] Univ Fed Sergipe UFS, Dept Fis, BR-49100000 Itabaiana, Sergipe - Brazil
[4] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, SP - Brazil
[5] NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 - USA
Total Affiliations: 5
Document type: Journal article
Source: Physical Review B; v. 102, n. 15 OCT 20 2020.
Web of Science Citations: 0

We have performed x-ray powder diffraction, magnetization, electrical resistivity, heat capacity, and inelastic neutron scattering (INS) to investigate the physical properties of the intermetallic series of compounds, CeCuBi2-xSbx. These compounds crystallize in a tetragonal structure with space group P4/nmm and present antiferromagnetic transition temperatures ranging from 3.6 to 16 K. Remarkably, the magnetization easy axis changes along the series, which is closely related to the variations of the tetragonal crystalline electric-field (CEF) parameters. This evolution was analyzed using a mean-field model, which included anisotropic nearest-neighbor interactions and the tetragonal CEF Hamiltonian. The CEF parameters were obtained by fitting the magnetic susceptibility data with the constraints given by the INS measurements. Finally, we discuss how this CEF evolution can affect the Kondo physics and the search for a superconducting state in this family. (AU)

FAPESP's process: 17/10581-1 - Emergent phenomena in reduced dimension systems
Grantee:Pascoal Jose Giglio Pagliuso
Support type: Research Projects - Thematic Grants
FAPESP's process: 17/25269-3 - High pressure studies in SrFe2As2, CaMn2Bi2 and CeAuBi2 compounds
Grantee:Mário Moda Piva
Support type: Scholarships abroad - Research Internship - Doctorate (Direct)
FAPESP's process: 18/11364-7 - Magnetic properties of complex systems with non-trivial topology
Grantee:Jean Carlo Souza
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 15/16191-5 - The research in new materials involving high magnetic fields and low temperatures
Grantee:Gennady Gusev
Support type: Research Projects - Thematic Grants
FAPESP's process: 19/04196-3 - Investigation of crystalline electric field effects in magnetic and superconducting states in the Ce2RhIn8-xCdx compounds
Grantee:Denise Sacramento Christovam
Support type: Scholarships in Brazil - Master
FAPESP's process: 15/15665-3 - Studies of orbital differentiation effects in the magnetic and superconducting properties of FeAs based compounds
Grantee:Mário Moda Piva
Support type: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 19/26247-9 - Emergent phenomena in Bi-based systems with low dimensionality
Grantee:Gabriel Silva Freitas
Support type: Scholarships in Brazil - Doctorate