@article{oai:kyutech.repo.nii.ac.jp:00005016,
 author = {Kohiki, Shigemi and 古曵, 重美 and Okada,  Koichi and Mitome,  Masanori and Kohno,  Atsushi and Kinoshita,  Tomoki and Iyama,  Koichiro and Tsunawaki,  Fumiya and Deguchi, Hiroyuki and 出口, 博之},
 issue = {9},
 journal = {ACS Applied Materials & Interfaces},
 month = {Aug},
 note = {We report magnetoresistance of  40%, corresponding to 80% spin polarization, at magnetic field of 0.5 T and 200 K for oleic acid-coated Fe2.5Mn0.5O4 nanocrystals (FMO NCs) self-assembled on a SiO2/Si substrate by drop casting fabrication. TheFMONCs exhibited spin glass transition around 150 K and nonlinear current voltage (I V) characteristics. Fowler Nordheim plot of the I V characteristics indicated that electrons tunnel directly barriers between the FMO NCs. Transmission electron microscopy revealed that the FMO NCs are elongated hexagon in shape with size of ∼15   20 nm. The FMO NCs self-assembled in two-dimension hexagonal networks of collinear ferromagnetic moments. The [111] easy magnetization axis of each FMO NC was parallel to each other in the hexagonal arrays. Geometrically frustrated lattice of collinear ferromagnetic moments supports both a low and a high intergranular tunneling conductance for the self-assembled FMO NCs without and with magnetic fields, respectively.},
 pages = {3589--3593},
 title = {Magnetic and magnetoelectric properties of self-assembled Fe2.5Mn0.5O4 nanocrystals},
 volume = {3},
 year = {2011},
 yomi = {コヒキ, シゲミ and デグチ, ヒロユキ}
}