John Bardeen - Revision history

Ajacob30: /* Bardeen-Cooper-Schrieffer Theory (BCS Theory) */

2015-12-03T03:08:09Z

Bardeen-Cooper-Schrieffer Theory (BCS Theory)

← Older revision		Revision as of 23:08, 2 December 2015
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	BCS theory is a comprehensive theory that explains the behavior of superconducting materials; they lost resistance to the flow of electric current when cooled to temperatures near zero. Superconductors form when electrons in pairs, called Cooper pairs, in a material all have correlated motion. After applying voltage and removing the voltage, the current continues flowing because the electron pairs encounter no opposition. When Cooper pairs are warmed, the pairs separate from their correlated motions into individual electrons and the material becomes non-superconducting. The theory supplies experimental means of measuring the energy needed to separate Cooper pairs [http://www.britannica.com/science/BCS-theory].		BCS theory is a comprehensive theory that explains the behavior of superconducting materials; they lost resistance to the flow of electric current when cooled to temperatures near zero. Superconductors form when electrons in pairs, called Cooper pairs, in a material all have correlated motion. After applying voltage and removing the voltage, the current continues flowing because the electron pairs encounter no opposition. When Cooper pairs are warmed, the pairs separate from their correlated motions into individual electrons and the material becomes non-superconducting. The theory supplies experimental means of measuring the energy needed to separate Cooper pairs [http://www.britannica.com/science/BCS-theory].

	[[File:Superconductor.~~jpg~~]]		[[File:Superconductor.gif]]

	== See also ==		== See also ==

Ajacob30 at 03:07, 3 December 2015

2015-12-03T03:07:38Z

← Older revision		Revision as of 23:07, 2 December 2015
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	===Bardeen-Cooper-Schrieffer Theory (BCS Theory)===		===Bardeen-Cooper-Schrieffer Theory (BCS Theory)===
			BCS theory is a comprehensive theory that explains the behavior of superconducting materials; they lost resistance to the flow of electric current when cooled to temperatures near zero. Superconductors form when electrons in pairs, called Cooper pairs, in a material all have correlated motion. After applying voltage and removing the voltage, the current continues flowing because the electron pairs encounter no opposition. When Cooper pairs are warmed, the pairs separate from their correlated motions into individual electrons and the material becomes non-superconducting. The theory supplies experimental means of measuring the energy needed to separate Cooper pairs [http://www.britannica.com/science/BCS-theory].

			[[File:Superconductor.jpg]]

	== See also ==		== See also ==
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	http://www.britannica.com/technology/transistor		http://www.britannica.com/technology/transistor

			http://www.britannica.com/science/BCS-theory

			http://hyperphysics.phy-astr.gsu.edu/hbase/solids/imgsol/meis2.gif

Ajacob30: /* BCS Theory */

2015-12-03T02:22:11Z

BCS Theory

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	[[File:Transistor.jpg]]		[[File:Transistor.jpg]]

	===BCS Theory===		===Bardeen-Cooper-Schrieffer Theory (BCS Theory)===

	== See also ==		== See also ==

Ajacob30: /* Transistor */

2015-12-03T02:20:02Z

Transistor

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	===Transistor===		===Transistor===
	A transistor is a semiconductor that amplifies, controls, and generates electrical signals. It is made up of integrated circuits called microchips. Its small size, low heat generation, and power efficiency made it the foundation of the Information Age [http://www.britannica.com/technology/transistor].		A transistor is a semiconductor that amplifies, controls, and generates electrical signals. It is made up of integrated circuits called microchips. Its small size, low heat generation, and power efficiency made it the foundation of the Information Age. The three leads in a transistor are the emitter, collector, and the base which in modern appliances are known as the source, drain, and gate. The electrical signal applied at the base influences the semiconductor's ability to conduct current. The current then flows between the emitter and collector. The rate of flow of current is determined by the input signal at the gate [http://www.britannica.com/technology/transistor].

	[[File:Transistor.jpg]]		[[File:Transistor.jpg]]

Ajacob30 at 02:16, 3 December 2015

2015-12-03T02:16:54Z

← Older revision		Revision as of 22:16, 2 December 2015
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	===Transistor===		===Transistor===
	A transistor is a semiconductor that amplifies, controls, and generates electrical signals. It is made up of integrated circuits called microchips. Its small size, low heat generation, and power efficiency made it the foundation of the Information Age.		A transistor is a semiconductor that amplifies, controls, and generates electrical signals. It is made up of integrated circuits called microchips. Its small size, low heat generation, and power efficiency made it the foundation of the Information Age [http://www.britannica.com/technology/transistor].

	[[File:Transistor.jpg]]		[[File:Transistor.jpg]]
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	http://www.nobelprize.org/nobel_prizes/physics/laureates/1972/bardeen-bio.html		http://www.nobelprize.org/nobel_prizes/physics/laureates/1972/bardeen-bio.html

			http://www.britannica.com/technology/transistor

Ajacob30 at 02:16, 3 December 2015

2015-12-03T02:16:02Z

← Older revision		Revision as of 22:16, 2 December 2015
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	===Transistor===		===Transistor===
			A transistor is a semiconductor that amplifies, controls, and generates electrical signals. It is made up of integrated circuits called microchips. Its small size, low heat generation, and power efficiency made it the foundation of the Information Age.

			[[File:Transistor.jpg]]

	===BCS Theory===		===BCS Theory===

Ajacob30 at 02:12, 3 December 2015

2015-12-03T02:12:10Z

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	In 1945, Bardeen joined Bell Laboratories where he researched the electron-conducting properties of semiconductors with his colleagues, Brattain and Shockley. Together on Dec. 23, 1947, they began the electronic revolution with the creation of the transistor. This device allowed computers to be manufactured with smaller and more accessible parts [http://www.britannica.com/biography/John-Bardeen].		In 1945, Bardeen joined Bell Laboratories where he researched the electron-conducting properties of semiconductors with his colleagues, Brattain and Shockley. Together on Dec. 23, 1947, they began the electronic revolution with the creation of the transistor. This device allowed computers to be manufactured with smaller and more accessible parts [http://www.britannica.com/biography/John-Bardeen].
	In the early 1950s, Bardeen continued research on superconductivity at near absolute temperatures. He created the BCS theory, with Cooper and Schrieffer, to explain the disappearance of electrical resistance in materials near such extreme temperatures [http://www.britannica.com/biography/John-Bardeen].		In the early 1950s, Bardeen continued research on superconductivity at near absolute temperatures. He created the BCS theory, with Cooper and Schrieffer, to explain the disappearance of electrical resistance in materials near such extreme temperatures [http://www.britannica.com/biography/John-Bardeen].

			===Transistor===


			===BCS Theory===

	== See also ==		== See also ==

Ajacob30 at 02:11, 3 December 2015

2015-12-03T02:11:22Z

← Older revision		Revision as of 22:11, 2 December 2015
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	Liquid Nitrogen Experiments: The Superconductor (Video) https://www.youtube.com/watch?v=o6t2IWHA63o		Liquid Nitrogen Experiments: The Superconductor (Video) https://www.youtube.com/watch?v=o6t2IWHA63o

	==References==		===References===

	~~===External links~~===
	http://www.britannica.com/biography/John-Bardeen		http://www.britannica.com/biography/John-Bardeen

Ajacob30 at 02:09, 3 December 2015

2015-12-03T02:09:41Z

← Older revision		Revision as of 22:09, 2 December 2015
Line 11:		Line 11:
	In 1945, Bardeen joined Bell Laboratories where he researched the electron-conducting properties of semiconductors with his colleagues, Brattain and Shockley. Together on Dec. 23, 1947, they began the electronic revolution with the creation of the transistor. This device allowed computers to be manufactured with smaller and more accessible parts [http://www.britannica.com/biography/John-Bardeen].		In 1945, Bardeen joined Bell Laboratories where he researched the electron-conducting properties of semiconductors with his colleagues, Brattain and Shockley. Together on Dec. 23, 1947, they began the electronic revolution with the creation of the transistor. This device allowed computers to be manufactured with smaller and more accessible parts [http://www.britannica.com/biography/John-Bardeen].
	In the early 1950s, Bardeen continued research on superconductivity at near absolute temperatures. He created the BCS theory, with Cooper and Schrieffer, to explain the disappearance of electrical resistance in materials near such extreme temperatures [http://www.britannica.com/biography/John-Bardeen].		In the early 1950s, Bardeen continued research on superconductivity at near absolute temperatures. He created the BCS theory, with Cooper and Schrieffer, to explain the disappearance of electrical resistance in materials near such extreme temperatures [http://www.britannica.com/biography/John-Bardeen].


	== See also ==		== See also ==
	Liquid Nitrogen Experiments: The Superconductor (Video) https://www.youtube.com/watch?v=o6t2IWHA63o		Liquid Nitrogen Experiments: The Superconductor (Video) https://www.youtube.com/watch?v=o6t2IWHA63o


	==References==		==References==


	===External links===		===External links===

Ajacob30 at 02:07, 3 December 2015

2015-12-03T02:07:51Z

← Older revision		Revision as of 22:07, 2 December 2015
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	== See also ==		== See also ==
			Liquid Nitrogen Experiments: The Superconductor (Video) https://www.youtube.com/watch?v=o6t2IWHA63o