Electronic properties and magnetism in high-Tc superconductors

Barbara Szpunar; Vedene H. Smith, Jr.

doi:10.1103/PhysRevB.37.2338

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Electronic properties and magnetism in high-Tc superconductors

Barbara Szpunar, Vedene H. Smith, Jr.

DOI 10.1103/PhysRevB.37.2338 · Physical Review B

T1

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Abstract

The first self-consistent spin-polarized band-structure calculations have been performed for CuO2 planes in the high-Tc superconductors. It has been demonstrated that due to different doping a magnetic transition occurs. The calculated magnetic moment for the (CuO2)−− unit plane is equal to 1.0μB while the (CuO2)− plane is nonmagnetic. These charge- and spin-density fluctuations, strongly related, are probably responsible for the observed high transition temperature in these new superconductors. In agreement with experiment the density of states at the Fermi energy is very low.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	90	Pressure not reported	unknown