Suppression of the Shastry-Sutherland phase driven by electronic concentration reduction in magnetically frustratedCe2.15Pd1.95(Sn1−yIny)0.9alloys
| Autor: | J. Roberts, F. Gastaldo, Mauro Giovannini, J. G. Sereni |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Electron density
Materials science Condensed matter physics Intermetallic 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Magnetic field Ferromagnetism Critical point (thermodynamics) Lattice (order) 0103 physical sciences Condensed Matter::Strongly Correlated Electrons 010306 general physics 0210 nano-technology Ground state Solid solution |
| Zdroj: | Physical Review B. 100 |
| ISSN: | 2469-9969 2469-9950 |
| Popis: | Shastry-Sutherland lattice was observed as alternative ground state in Rare Earth intermetallic with Mo$_2$B$_2$Fe and U$_2$Pt$_2$Sn anisotropic structures where magnetic frustration is favored. In the case of Ce$_2$Pd$_2$Sn, it was shown that such phase can be suppressed by the application of magnetic field and, in this work, its stability is studied as a function of the electronic concentration by doping the Sn(4+) lattice with In(3+) atoms. Magnetic and specific heat measurements show that around 50\% substitution the Shastry Sutherland lattice vanishes in a critical point. This result confirms the strong dependence of that phase on the electron density because a recent investigation on the Pd rich solid solution Ce$_{2+\epsilon}$Pd$_{2-\epsilon}$In$_{1-x}$Sn$_x$ (with $\epsilon 0$ character stabilizes the ferromagnetic ground state all along the concentration, allowing the Shastry Sutherland lattice formation on the Sn rich side. |
| Databáze: | OpenAIRE |
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