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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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Magnetic Bistability and Nucleation of Magnetic Bubbles in a Layered 2D Organic-Based Magnet [Fe(TCNE)(NCMe)(2)][FeCl(4)]

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Title
Magnetic Bistability and Nucleation of Magnetic Bubbles in a Layered 2D Organic-Based Magnet [Fe(TCNE)(NCMe)(2)][FeCl(4)]
Author
Yoo, Jung-WooPrigodin, V. N.Shum, W. W.Pokhodnya, K. I.Miller, Joel S.Epstein, A. J.
Keywords
PHOTOINDUCED MAGNETIZATION; DESIGNER MAGNETS; SPIN-GLASS; TETRACYANOETHYLENE; TEMPERATURE; DYNAMICS; BEHAVIOR; FIELD
Issue Date
2008-11
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW LETTERS, v.101, no.19, pp.1 - 4
Abstract
The 2D layered organic-based magnet [Fe(TCNE)(NCMe)2][FeC 14] (TCNE=tetracyanoethylene) exhibits a unique macroscopic magnetic bistability between the field-cooled and zero-field-cooled states, which cannot be explained by either superparamagnetic behavior or spin freezing due to spin glass order. This magnetic bistability is described through consideration of the ensemble of uncoupled 2D Ising layers and their magnetization reversal initiated by a field-induced nucleation of magnetic bubbles in individual layers. The bubble nucleation rate strongly depends on the external field and temperature resulting in anomalous magnetic relaxation.
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DOI
10.1103/PhysRevLett.101.197206
ISSN
0031-9007
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MSE_Journal Papers
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