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DEO Contract Number
Originating Research Organization
Ames Laboratory (AMES), Ames, IA (United States)
Country of Publication
SC-22 USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
36 MATERIALS SCIENCE
We study magnetic domains in Nd2Fe14B single crystals using high resolution magnetic force microscopy (MFM). Previous MFM studies and small angle neutron scattering experiments suggested the presence of nano-scale domains in addition to optically detected micrometer-scale ones. We find, in addition to the elongated, wavy nano-domains reported by a previous MFM study, that the micrometer size, star shape fractal pattern is constructed of an elongated network of nano-domains ~20 nm in width, with resolution-limited domain walls thinner than 2 nm. While the microscopic domains exhibit significant resilience to an external magnetic field, some of the nano domains are sensitive to the magnetic field of the MFM tip.
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Kaminski, Adam; Mou, Daixiang; Canfield, Paul C.; Taufour, Valentin; Huang, Lunan; Budko, Serguei; Schrunk, Benjamin; and Lamichhane, Tey, "Imaging the magnetic nano-domains in Nd2Fe14B" (2016). Ames Laboratory Datasets. 1.