Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Cheong-Gu Cho"'
Autor:
Sug-Bong Choe, Cheong-Gu Cho, Seung-Young Park, Cheol-Hyun Moon, Joo Sung Kim, Sang-Il Kim, Byoung-Chul Min, Joon Kwon Moon
Publikováno v:
Journal of the Korean Physical Society. 65:1611-1613
The effects of annealing on the Gilbert damping constant and the magnetic properties are investigated in CoFeB films sandwiched by either Ta, Ru, or Pd layers. As the annealing temperature increases, the damping constant is found to be slightly decre
Autor:
Jong-Jae Kim, Hyunduck Cho, Jysoo Lee, Hyeng-Soo Kim, Cheong-Gu Cho, Jung Hun Lee, Nak-Won Jang
Publikováno v:
Journal of the Korean Physical Society. 54:901-905
Publikováno v:
Journal of Nanoscience and Nanotechnology. 11:6476-6478
It is experimentally reported herein that the injection field of domain walls (DWs) from the nucleation pad to the nanowire is controlled by the angle of the initializing magnetic field with the use of asymmetric sample structures. The injection fiel
Publikováno v:
IEEE Transactions on Magnetics. 46:2009-2011
The domain patterns and magnetization reversal behaviors in oxide/Co/Pt films are examined with varying the thickness of Co layer from 0.7 nm to 2.0 nm. The films are grown on Al2O3, MgO and SiO2 layers. All the films exhibit strong perpendicular mag
Autor:
Kyoung-Woong Moon, Sungmin Hwang, Byungnam Kahng, Duck-Ho Kim, Byoung-Chul Min, Sug-Bong Choe, Cheong-Gu Cho, Kyung-Ho Shin, Sang-Cheol Yoo
Publikováno v:
Physical Review Letters. 110
Autor:
Duck-Ho Kim, Kyung-Ho Shin, Sang-Cheol Yoo, Cheong-Gu Cho, Byungnam Kahng, Sungmin Hwang, Sung-Bong Choe, Byoung-Chul Min, Kyoung-Woong Moon
Publikováno v:
Physical Review Letters. 110
We demonstrate here that the current-driven domain wall (DW) in two dimensions forms a ``facet'' roughness, distinctive to the conventional self-affine roughness induced by a magnetic field. Despite the different universality classes of these roughne
Publikováno v:
Nanotechnology. 22(8)
We have found that the depinning field of domain walls (DWs) in permalloy (Ni(81)Fe(19)) nanowires can be experimentally controlled by interactions between magnetic stray fields and artificial constrictions. A pinning geometry that consists of a notc
Publikováno v:
Applied Physics Express. 8:063009
We report here an experimental technique to generate spinwaves using femtosecond laser pulses. The femtosecond laser pulses induce ultrafast demagnetization, which causes the propagation of the spinwaves from the laser spot. The observed spinwaves ex
Autor:
Soong-Geun Je, Byoung-Chul Min, Sang-Cheol Yoo, Cheong-Gu Cho, Sug-Bong Choe, Dae-Yun Kim, Kyoung-Woong Moon, Duck-Ho Kim
Publikováno v:
Applied Physics Letters. 104:142410
We report an experimental observation that indicates that a direct relation exists between the speed of the magnetic domain-wall (DW) motion and the magnitude of the perpendicular magnetic anisotropy (PMA) in Pt/Co/Pt films. It is found that by chang
Autor:
Duck-Ho Kim, Sang-Cheol Yoo, Dae-Yun Kim, Kyoung-Woong Moon, Soong-Geun Je, Cheong-Gu Cho, Byoung-Chul Min, Sug-Bong Choe
Publikováno v:
Applied Physics Letters; 4/7/2014, Vol. 104 Issue 14, p1-3, 3p, 1 Color Photograph, 2 Charts, 3 Graphs