Journal
PHYSICAL REVIEW LETTERS
Volume 107, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.067201
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Funding
- MEST [2007-0056952, 2009-0084542, 2009-0083723, 2010-0014109]
- SRC [2010-0001858]
- SBS Foundation in Korea
- KIST
- KRCF DRC
- MKE/KEIT [2009-F-004-01]
- Korea Evaluation Institute of Industrial Technology (KEIT) [KI002189] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2009-0084542, 2010-0014109, 2008-0062257, 2007-0056952] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We examine magnetic domain wall motion in metallic nanowires Pt-Co-Pt. Regardless of whether the motion is driven by either magnetic fields or current, all experimental data fall onto a single universal curve in the creep regime, implying that both the motions belong to the same universality class. This result is in contrast to the report on magnetic semiconductor (Ga,Mn) As exhibiting two different universality classes. Our finding signals the possible existence of yet other universality classes which go beyond the present understanding of the statistical mechanics of driven interfaces.
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