Equation 12 · Part 1 · From Origins to Frontier: A History of Quantum and Condensed-Matter Systems
Symbol T_c
What this part means
is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol T_c→Article meaning
The passage around this formula
…to a real prediction: hydrogen, compressed enough, should behave like a light, strongly-bonded lattice with a very high phonon frequency — precisely the quantity that the BCS formula above says should raise . Superconductivity near 203 kelvin was confirmed in compressed hydrogen sulfide in 2015 and above 250 kelvin in a lanthanum hydride in 2019, both under pressures around 150–200 gigapascals — genuine, independently reproduced results, though far from ambient pressure.
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
Open the illustrated subscripts: which member of a family? guide →
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Sources cited in the article section
- [9] Nature retracts controversial superconductivity paper by embattled physicist ↗
- [10] LK-99 isn't a superconductor — how science sleuths solved the mystery ↗
These citations provide research context; check each source for the exact claim it supports.