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takyon [soylentnews.org] writes:

Joe Eck's Superconductors.org is reporting [superconductors.org] the discovery of the 25th and 26th high-temperature superconductors. Sn₉SbTe₄Ba₂MnCu₁₅O₃₀₊ displays a critical transition temperature (T_c) near 136°C (276°F) and Sn₁₀SbTe₄Ba₂MnCu₁₆O₃₂₊ transitions near 141°C (285°F).

To grasp how exceptionally high these temperatures are, consider that 141 Celsius is warmer than the melting points of more than 45 different solder alloys [superconductors.org].

These two new formulations resulted from expanding the unit cell of the 129C superconductor announced in March 2015 [superconductors.org]. One extra Sn-Cu-O₂ layer was added to reach 136C and two extra Sn-Cu-O₂ layers were added to reach 141C.

[FACT CHECK: It was either discovered by Joe Eck, or someone else.]

Original Submission