# Superconductors Essay

Length: 1057 words (3 double-spaced pages)

Rating: Strong Essays

#### Essay Preview

Superconductivity is a property displayed by certain materials at very low temperatures. Metals and their alloys have been known to be superconductive (ex. Tin, aluminum) other materials that have also been found to be superconductive are ceramics which contain copper and oxygen atoms. Superconductors have a special property which is that they can conduct electricity without resistance which means that energy is not lost. Once in motion, energy can flow through a closed loop of superconductive material forever. Superconductivity is the closest thing to perpetual motion.
b)Superconductivity is related to quantum mechanics because in order for superconductors to work you must get all electrons into a single quantum state. This requires to electrons to be paired together, to make the electrons a composite particle both electrons need to have no spin, or spin in the same direction. Quantum mechanics does not support this idea because electrons cannot be made to have zero spin or to spin in the same direction. Also, in order to explain electrical resistivity in terms of electron collisions was impossible because measuring the location and velocity of an electron simultaneously could not be done. This is why quantum mechanics couldn’t support or explain superconductivity.

2. A) Superconductors can only work at extremely low temperatures. Low temperature superconductors work at about 30K, and high temperature superconductors work at about 70K to 138K; these superconductors are almost always made of ceramics. In superconductors electrons bind to each other in arrangements called copper pairs. Electrons in these copper pairs flow endlessly without resistance. Temperature plays a vital part in superconductivity because in ord...

... middle of paper ...

...gzc-1OTI1ZzZ4h7

4. Charles Choi. Scientific American. (2008). Iron Exposed as High-Temperature Superconductor Retrieved from,http://www.scientificamerican.com/article.cfm?id=iron-exposed-as-high-temp-superconductor

5. Edmonds,M., & Gould,T.A.(,October 25). How an MRI Works. Retrieved February, 2011, from Discovery Health: http://health.howstuffworks.com/medicine/tests-treatment/mri.htm

6. How strong are the magntes in an MRI machine? ( 2001, August 9). Retrieved February 16, 2011, from HowStuffWorks: http://www.howstuffworks.com/question698.htm

7. MAGLEV 2000. (2001, January 1). Mach 3 Maglev. Retrieved February 16, 2011, from Maglev 2000: http//www.maglev2000.com/apps/apps-03.htm

8. Shiel Jr, W.C. (2008, October 25). Magnetic Resonance Imaging. Retrieved February 16, 2011, from MedicineNet.com: http//www.medicinenet.com/mri_scan/article.htm

## Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

## Essay on Superconductors and Superconductivity

- Before Kamerlign Onnes, in 1908, was able to liquefy helium and bring its temperature down to about 1K, it had been known that the resistance of a metal falls when cooled below room temperature. However, it was not known what value the resistance would approach if the temperature was reduced towards 0K until Onnes, while experimenting with platinum, discovered that, its resistance fell when cooled to a very low value that depended on the metal’s purity. As the temperature of mercury was reduced toward 0K, the value of the resistance would fall smoothly until the resistance fell extremely suddenly at about 4K....   [tags: physics science superconductor]

Free Essays
1569 words (4.5 pages)

## Superconductors Essay

- Superconductivity is a property displayed by certain materials at very low temperatures. Metals and their alloys have been known to be superconductive (ex. Tin, aluminum) other materials that have also been found to be superconductive are ceramics which contain copper and oxygen atoms. Superconductors have a special property which is that they can conduct electricity without resistance which means that energy is not lost. Once in motion, energy can flow through a closed loop of superconductive material forever....   [tags: Technology ]

Strong Essays
1057 words (3 pages)

## Superconductivity and Superconductors Essay

- Superconductivity and Superconductors ABSTRACT Superconductivity allows current to pass through a material with no resistive losses at near absolute zero temperatures. It also exhibits the Meissner effect which causes the superconducting material to repel magnetic fields. The application of this technology has been extremely limited due to the prohibitive costs of using Helium to cool the material to the critical temperatures....   [tags: Physics Physical Essays]

Free Essays
1429 words (4.1 pages)

## Superfluids and Superconductors Essay

- In 1924, the Indian physicist S. N. Bose developed an alternate law of radiation which modified Planck's laws to include a new variety of particles, namely, the boson. He sent off his theory to Einstein for revision and translation, and Einstein swiftly came up with some additions to the theory. He expanded the laws to incorporate the mass of the boson, and in doing so theorized a strange phenomenon. He predicted that when atoms of a gas came together under cold enough temperatures, and slowed down significantly, that they would all assume the exact same quantum state....   [tags: physics]

Free Essays
2386 words (6.8 pages)

- Advances in Superconductors and their Uses A superconductor is an element or compound that will conduct electricity without resistance below a cretin temperature. The phenomenon was discovered in 1911 by Kamerlingh Onnes, who found that the resistance of mercury dropped suddenly to zero at a temperature of about 4.2°K. For the next 75 years there followed a rather steady string of announcements of new materials that become superconducting near absolute zero. A major breakthrough occurred in 1986 when Karl Alexander Müller and J....   [tags: Papers]

Strong Essays
561 words (1.6 pages)

## Superconductors Essay

- I am writing to inform you of a recent economic opportunity that could leave you rich if you choose to invest. The prospect of wealth relies on superconductors- the system of the future and present. You could earn millions by contributing to the research of superconductors. Superconductors consist of an element, inter-metallic alloy, or compound that will conduct electricity without resistance (loss of energy flowing through the material) below a certain temperature. Once in motion, electrical current will flow forever in a closed loop of superconducting material, hence the high demand of such a product....   [tags: essays research papers]

Free Essays
914 words (2.6 pages)

## The Periodic Phase Modulation of the Order Parameter Is Essential to Construct the Andreev Interferometer

- The periodic phase modulation of the order parameter is essential to construct the Andreev interferometer, see Fig. \ref{fig1}(a). We consider a Y-junction in proximity to a FF superconductor, which introduces finite pair potential in the two channels. To be specific, we assume the channels are both set along the $x$ direction, with a spatial separation of $h$ in the $y$ direction. The pairing in the FF superconductor occurs with a finite momentum $\bf{Q}$ = $(Q_x, Q_y)$, and the order parameter takes the form of $\Delta e^{i{\bf Q}\cdot {\bf x}}$ for the $s$-wave pairing....   [tags: superconductors, electric engeneering]

Strong Essays
670 words (1.9 pages)

## Nine States of Matter? The Lesser Known States of Matter Essay

- ... The discovery that we can make photons act strongly together could make developing quantum computers a lot easier. this discovery is the most recent of the five having only happened last year. Normally photons don't interact “Getting photons to stick together is not easy because they normally pass through each other without interacting”(Johnson), but as Johnson explains the Rydberg-state makes it possible. the Rydberg state occurs when you fire light into a medium and then the lights energy causes the mediums molecules to bond together with a covalent bond and that makes the light slow down due to lost energy....   [tags: BEC, superconductors, superfluids]

Strong Essays
906 words (2.6 pages)

## Physicist Heike Kamerlingh Onnes and Superconductivity Essay

- In 1911, Dutch physicist Heike Kamerlingh Onnes discovered that the resistance of mercury absolutely disappears at temperatures below about 4K. This phenomenon is called superconductivity; correspondingly, materials which have this property would be called superconductors. Because of this great discovery, in 1913, he won a Nobel Prize in physics for his research in this area. [2] The technological development of superconductivity was hampered by the cost of producing the extremely low temperatures required to achieve the effect....   [tags: technological development, phenomenon]

Strong Essays
1289 words (3.7 pages)

## Conductivity Essay

- Super conductivity is a natural phenomenon in which certain materials such as metals, alloys, and ceramics, can conduct electricity without resistance. These materials are what we call superconductors. In a superconductor, once the flow of electrons begins, it essentially goes on forever, making it an important material to humans. Superconductivity was discovered by a Dutch scientist by the name of Heike Kamerlingh Onnes in 1911. While researching properties of materials at absolute zero, this man found out that certain materials lost its resistance to the flow of electrons....   [tags: essays research papers]

Free Essays
537 words (1.5 pages)