Quantum structural diagrams and high-Tc superconductivity

P. Villars; J. C. Phillips

doi:10.1103/PhysRevB.37.2345

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Quantum structural diagrams and high-Tc superconductivity

P. Villars, J. C. Phillips

DOI 10.1103/PhysRevB.37.2345 · Physical Review B

T1

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Abstract

Using golden coordinates we have successfully isolated the sixty known superconductors with Tc>10 K into three small volumes which occupy about 1% of elemental configuration space. Two volumes contain the familiar NbN and Nb3Ge materials, but the third volume contains both the Chevrel sulfide and Bednorz-Müller-Chu oxide materials. Compounds in the third volume with formulae near YBa2Cu3O7 are suggested as promising candidates for new high-Tc superconductors.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
NbN Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	10	Pressure not reported	onset
Nb3Ge Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	10	Pressure not reported	onset
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
LiCu3Al6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
(La,Sr)2CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown