TUGAS 3 superkonduktivitas

TUGAS 3: SUPERKONDUKTIVITAS.

1.      What is superconductor?

2.      Classify superconducting materials.

3. Why gold could not be a superconductor while Niobium is?
4. What is advantage and disadvantage of superconductors?
5. How superconductivity can be destroyed?
6. Draw a superconducting characteristic curve of each following correlation between:
1. r - T
2. H – T
3. M – H
7. What are the different between, superconducting and:
1. Insulator, semiconductor, metal, perfect conductor?
8. What is the meaning of conventional, HTSC, LTSC, Soft, Hard, Type I, Type II superconductors?
9. Consider penetration depth and coherent length of each material in Table 1.

Classify which material is Type I and Type II superconductor?

Please make a comment on it related to HTSC or LTSC.

Table 1. Coherent length and penetration depth parameters of some materials.

Material	Coherence length (nm)	London penetration depth (nm)	Superconducting Type
A	230	34
B	1600	16
C	83	37
D	760	110
E	38	39
F	2.7	810
G	0.58	92.5
H	230	34
I	38	39
J	110	3.2
K	1600	500

10. Suppose that material F in Table 1 shown an induction field as 0.15T inside? Could you predict how many individual fluxoid in the material (density)?
11. What suprconductor can be while other material not.
12. Tulis minimum lima buah parameter superkonduktivitas yang tidak ditemukan pada material normal. Beri penjelasan lengkap dengan gambar untuk masing-masing parameter tersebut.
13. Jelaskan dua modus pengukuran kemagnetan bahan superkonduktor. Berikan penjelasan apa yang terjadi jika yang diukur adalah superkonduktor dan bahan normal dan bahan konduktor sempurna, secara konseptual.