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YBCO Superconductor

1987
PhysicsCondensed Matter / Materials PhysicsEmpirical Resultfoundational

Discovery of superconductivity at 93K in an yttrium-barium-copper-oxide compound (Wu, Chu et al., 1987) -- the first superconductor above the 77K liquid-nitrogen boiling point, making practical (cheap-coolant) superconductor applications possible for the first time. Direct successor to Bednorz & Muller's 1986 La-Ba-Cu-O discovery; modeled as a child of High-Temperature Superconductivity via parent_node_id, the same pattern used for Adam/SGD.

Discovery Velocity

Normalized OpenAlex paper velocity, one point per year.

Originators

  • Maw-Kuen Wu
  • Ching-Wu Chu

Landmark Paper

W2032551484 ↗
Not retracted (OpenAlex)

Checked 2026-08-30 — interim signal only, see docs/BASIC_ROADMAP.md Phase 10

Lineage

Refinement of High-Temperature Superconductivity

Connections

No verified edges into the applied tree or elsewhere in Basic yet — never rendered as fabricated, just absent.