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| Author | Sereni, J.G.; Roberts, J.; Gastaldo, F.; Gómez Berisso, M.; Giovannini, M. | ||||
| Title | Shastry-Sutherland phase formation in magnetically frustrated Ce2Pd2In1-xSnx alloys | Type | Journal Article | ||
| Year | 2019 | Publication | Materials Today: Proceedings | Abbreviated Journal | XXIII Latin American Symposium on Solid State Physics (SLAFES XXIII), San Carlos de Bariloche, Argen |
| Volume | 14 | Issue | Pages | 80-83 | |
| Keywords | Magnetic frustration; Shastry Sutherland phases; Ce-compounds | ||||
| Abstract | Taking profit that the ternary indides Ce2+εPd2-εIn form two branches of solid solutions allowing to access to ferromagnetic (FM, ε > 0) or anti-ferromagnetic (AFM, ε < 0) ground states depending on the relative Ce/Pd concentration 'ε' , we have tested the possibility of a Shastry-Sutherland phase formation by electron doping the trivalent In lattice with tetravalent Sn. Starting from the AFM, ε < 0 side provides the lowest electron concentration conditions increasing the sensitivity to electron doping. For such a purpose low temperature thermal and magnetic properties were investigated on Ce2+εPd2-εIn1-xSnx alloys within the 0 ≤ x ≤ 0.6 range of concentration. | ||||
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| ISSN | 2214-7853 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ | Serial | 824 | ||
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| Author | Sereni, J.G.; Roberts, J.; Gastaldo, F.; Giovannini, M. | ||||
| Title | Suppression of the Shastry-Sutherland phase driven by electronic concentration reduction in magnetically frustrated Ce2.15Pd1.95(Sn1-yIny)0.9 alloys | Type | Journal Article | ||
| Year | 2019 | Publication | Physical Review B | Abbreviated Journal | Phys. Rev. B |
| Volume | 100 | Issue | 5 | Pages | 054421 |
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| Abstract | Exploiting the possibility to switch from antiferromagnetic (AFM) and ferromagnetic (FM) ground states (GSs) in out-stoichiometric branches of Ce2Pd2In alloys, the stability of Shastry-Sutherland (ShSu) phase of Ce2Pd2Sn as a function of Sn/In electron doping was studied. Magnetic and specific-heat measurements show that the Ce-rich compositions stabilize the FM-GS throughout the Sn/In-FM substitution, allowing to extend the formation of the ShSu phase up to its collapse in a tricritical point around ycr=0.5. On the other hand, this behavior is quite different from that reported in a recent investigation on the AFM branch where atomic disorder at intermediate Sn/In-AFM concentrations inhibits the formation of the ShSu phase. |
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| Publisher | American Physical Society | Place of Publication |
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| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ 10.1103/PhysRevB.100.054421 | Serial | 828 | ||
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