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Electrical properties memory switching

Information technology has revolutionized daily life in the last decades and the continuously increasing amount of data to be stored and manipulated strongly stimulated the search for switching and memory elements as tiny as a single molecule. Molecular switches can be converted from one state to another by an external stimulus such as light, electricity or a chemical reaction. Like with their macroscopic counterparts, one is able to control numerous functions and properties of materials and devices. [Pg.451]

Phase Change Materials (PCMs) are nowadays widely used for data recording and increasingly present non-volatile memories [1, 2]. Since Ovshinsky s precursor work [3], PCMs have been studied extensively, both experimentally [4-6] or with ab initio calculations [7-11], The operating principle of PCMs is based on the easy and reversible switching between the crystalline (C) and amorphous (A) states, each phase possessing very different electrical and optical properties. These materials are nowadays found in commercial applications for optical information storage and dissemination, such as CD-RW, DVD-RW or Blue-Ray disk, and could be used for the achievement of PC-RAM. [Pg.486]


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See also in sourсe #XX -- [ Pg.430 , Pg.431 ]

See also in sourсe #XX -- [ Pg.430 , Pg.431 ]




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