Type-I superconductor

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/type-i-superconductor

1. Who discovered Type-I superconductor?
2. How long is Type-I superconductor?
3. What is the discoverer?
4. What is the defining transition?
5. How does the Meissner effect work in Type-I superconductors?
6. What happens when a magnetic field is too strong for a Type-I superconductor?

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. Who discovered Type-I superconductor?1911
2. How long is Type-I superconductor?λ/ξ < 1/√2
3. What is the discoverer?Heike Kamerlingh Onnes
4. What is the defining transition?Abrupt, first-order phase transition at critical magnetic field Hc
5. How does the Meissner effect work in Type-I superconductors?The metal creates surface currents that produce an opposing magnetic field, so the magnetic field disappears from inside the metal and magnets can't stick to it.
6. What happens when a magnetic field is too strong for a Type-I superconductor?The metal suddenly stops being superconducting and returns to a normal state, like a magic trick that ends abruptly.

London Penetration Depth (λ): The distance over which an external magnetic field decays inside a superconductor.
Superconducting Coherence Length (ξ): The characteristic distance over which the superconducting electron pairs remain correlated.
First-Order Phase Transition: A transition between states of matter that involves a latent heat and a discontinuous change in properties.
Intermediate State: A macroscopic phase separation into superconducting and normal domains in Type-I superconductors near Hc.