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Yoo, Jung-Woo
Functional Hybrid Materials and Devices Lab(FHMDL)
Research Interests
  • Transport properties, spintronics, organic/molucular magnet, electronic, and spintronics,
  • 2DEG, energy harvesting device, atomic/molecular layer deposition

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Novel mechanism of photoinduced magnetism in organic-based magnetic semiconductor V(TCNE)(x), x similar to 2

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Title
Novel mechanism of photoinduced magnetism in organic-based magnetic semiconductor V(TCNE)(x), x similar to 2
Author
Yoo, Jung-WooEdelstein, R. ShimaRaju, N. P.Lincoln, D. M.Epstein, A. J.
Keywords
TEMPERATURE; RESONANCE; FIELD
Issue Date
2008-04
Publisher
AMER INST PHYSICS
Citation
JOURNAL OF APPLIED PHYSICS, v.103, no.7, pp.1 - 3
Abstract
The organic-based magnet V (TCNE)x, x∼2 (Tc ∼400 K), is a room temperature magnetic semiconductor with spin polarized valence and conduction bands. It was reported that this material exhibits persistent photoinduced change in both magnetization and conductivity. The simultaneous change in IR spectra by illumination shows photoinduced activation to the metastable state with a small structural change. Here, we employed photoinduced ferrimagnetic resonance (FMR) study to investigate photoinduced magnetization in V (TCNE)x film. The FMR spectra display substantial changes in their linewidth and line shift by the illumination indicating substantial increase in random magnetic anisotropy. The results demonstrate optical control of magnetism by changing magnetic anisotropy of the system.
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DOI
10.1063/1.2830960
ISSN
0021-8979
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MSE_Journal Papers
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