What Structural Features Appear Necessary for Superconductivity in the 1-2-3

question 64

Multiple Choice

What structural features appear necessary for superconductivity in the 1-2-3 YBa₂Cu₃O₇ superconductor?

• A)high metallic character
• B)infinite extended layers of Cu and O atoms and a fractional oxidation state for Cu
• C)presence of an inner transition element
• D)All of these are necessary.

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