welatiger said:hello everybody
i want informational about microscopic theory of superconductivity but without sophisticated quantum mechanics
can you help me ?
The microscopic theory of superconductivity is a scientific explanation for how certain materials can conduct electricity with no resistance at very low temperatures. It is based on the idea that electrons in a superconducting material form pairs, called Cooper pairs, which can move through the material without any hindrance, resulting in zero electrical resistance.
The macroscopic theory of superconductivity, also known as the phenomenological theory, describes superconductivity from a more generalized point of view, focusing on the properties and behavior of superconducting materials as a whole. The microscopic theory, on the other hand, delves into the underlying physical mechanisms and interactions that give rise to superconductivity.
Phonons, which are vibrations of the crystal lattice in a material, play a crucial role in the microscopic theory of superconductivity. They are responsible for attracting electrons to form Cooper pairs, which can then move through the lattice without any resistance. The exchange of phonons between electrons is what allows for superconductivity to occur.
The BCS theory, named after its creators John Bardeen, Leon Cooper, and John Schrieffer, is one of the key theories that make up the microscopic theory of superconductivity. It explains the formation of Cooper pairs through the exchange of phonons and provides a mathematical framework for understanding superconductivity at the microscopic level.
Although the microscopic theory of superconductivity has been widely accepted and has led to many advancements in the field, there are still some challenges in fully understanding it. One of the main challenges is the complexity of the mathematical models used to describe superconductivity, which can be difficult to solve and interpret. Additionally, the exact mechanisms behind the formation of Cooper pairs and the behavior of superconducting materials at high temperatures are still not fully understood.