Magnetic ordering and superconductivity in R2Rh3Sn5(R=La-Tm,Y) systems
N. G. Patil, S. Ramakrishnan
DOI 10.1103/PhysRevB.59.12054 · Physical Review B
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Abstract
We report resistivity, magnetization and heat-capacity studies on R2Rh3Sn5(R=La-Tm, Y) from 1.5 to 300 K. We find that La2Rh3Sn5 forms in U2Co3Si5 (Ibam) structure while the others (R=Ce to Tm) adopt the related Y2Rh3Sn5(Cmc21) structure. Both structures are closely related to the structure of R2Fe3Si5(P4/mnc) compounds which exhibit exotic superconducting and magnetic properties. Ce2Rh3Sn5 shows a Kondo lattice behavior and undergoes antiferromagnetic ordering below 2.5 K whereas compounds La2Rh3Sn5 and Tm2Rh3Sn5 show superconductivity below 1.8 K. The observed superconductivity in Tm2Rh3Sn5 is interesting in view of its bulk magnetic ordering below 2.3 K. The other compounds containing magnetic rare-earth elements undergo antiferromagnetic ordering at low temperatures (T<~10K) with the exception of Pr2Rh3Sn5 and Nd2Rh3Sn5 which do not order down to 1.5 K.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La2Rh3Sn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.8 | Pressure not reported | unknown |
| La2Rh3Sn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.85 | Pressure not reported | onset |
| La2Rh3Sn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.8 | Pressure not reported | unknown |
| Tm2Rh3Sn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.8 | Pressure not reported | unknown |
| Tm2Rh3Sn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.8 | Pressure not reported | unknown |
| Tm2Rh3Sn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.8 | Pressure not reported | unknown |
| Tm2Fe3Si5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Er2Fe3Si5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1 | Pressure not reported | unknown |
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