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...
محفوظ في:
المؤلفون الرئيسيون: | Sethna, James. P., Jacobsen, K. W., Myers, Christopher R., Ralph, Daniel C., Vegge, Tejs, Cheong, Siew Ann |
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التنسيق: | مقال |
اللغة: | English |
منشور في: |
2009
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الموضوعات: | |
الوصول للمادة أونلاين: | 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 |
الوسوم: |
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