Superconductivity in LuGe2
Y. R. Chung, H. H. Sung, W. H. Lee
DOI 10.1103/PhysRevB.70.052511 · Physical Review B
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Abstract
We report the discovery of a superconductor LuGe2. Magnetic and electrical measurements showed that the transition temperature Tc=2.6±0.1K. Powder x-ray diffraction patterns indicate that this compound has the orthorhombic ZrSi2-type structure with space group Cmcm. A refinement of the lattice parameters of the unit cell, determing by the method of least squares using the thirteen intense reflections for 2θ<60°, showed that a=0.3969(9), b=1.5553(3), and c=0.3839(9)nm. In addition, no superconducting transition above 1.8K was observed for the nonstrochiometric compound LuGe1.5 with AIB2-type structure.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| LuGe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.6 | Pressure not reported | midpoint |
| LuGe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.65 | Pressure not reported | midpoint |
| ScGe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.3 | Pressure not reported | unknown |
| YGe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.8 | Pressure not reported | unknown |
| LaGe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.49 | Pressure not reported | unknown |
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