@article{oai:kyutech.repo.nii.ac.jp:00005018,
 author = {Kohiki, Shigemi and 古曵, 重美 and Nara,  Koichiro and Mitome,  Masanori and Tsuya,  Daiju},
 issue = {20},
 journal = {ACS Applied Materials & Interfaces},
 month = {Sep},
 note = {An oleic acid-coated Fe2.7Co0.3O4 nanocrystal (NC) self-assembled film was fabricated via drop casting of colloidal particles onto a three-terminal electrode/MgO substrate. The film exhibited a large coercivity (1620 Oe) and bifurcation of the zero-field-cooled and field-cooled magnetizations at 300 K. At 10 K, the film exhibited both a Coulomb blockade due to single electron charging as well as a magnetoresistance of ∼−80% due to spin-dependent electron tunneling. At 300 K, the film also showed a magnetoresistance of ∼−80% due to hopping of spin-polarized electrons. Enhanced magnetic coupling between adjacent NCs and the large coercivity resulted in a large spin-polarized current flow even at 300 K.},
 pages = {17410--17415},
 title = {Magnetoresistance of Drop-Cast Film of Cobalt-Substituted Magnetite Nanocrystals},
 volume = {6},
 year = {2014},
 yomi = {コヒキ, シゲミ}
}