Calculation of quantum tunneling for a spatially extended defect : the dislocation kink in copper has a low effective mass

Calculation of quantum tunneling for a spatially extended defect : the dislocation kink in copper has a low effective mass

Several experiments indicate that there are atomic tunneling defects in plastically deformed metals. How this is possible has not been clear, given the large mass of the metal atoms. Using a classical molecular-dynamics calculation, we determine the structures, energy barriers, effective masses, and...

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書目詳細資料
Main Authors:	Sethna, James. P., Jacobsen, K. W., Myers, Christopher R., Ralph, Daniel C., Vegge, Tejs, Cheong, Siew Ann
格式:	Article
語言:	English
出版:	2009
主題:	DRNTU::Science::Physics::Atomic physics::Solid state physics
在線閱讀:	https://hdl.handle.net/10356/91723 http://hdl.handle.net/10220/4592 http://sfxna09.hosted.exlibrisgroup.com:3410/ntu/sfxlcl3?sid=metalib:CSA_MEDLINE&id=doi:&genre=&isbn=&issn=0031-9007&date=2001&volume=86&issue=8&spage=1546&epage=9&aulast=Vegge&aufirst=%20T&auinit=&title=Physical%20review%20letters&atitle=Calculation%20of%20quantum%20tunneling%20for%20a%20spatially%20extended%20defect%3A%20the%20dislocation%20kink%20in%20copper%20has%20a%20low%20effective%20mass%2E
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