ABSTRACT
FM Heterojunction ............................................................. 156 4.2.6 Summary and Conclusions ............................................................... 158
4.3 Organic-Based Magnet: New Phenomena and Spintronic Applications ...... 159 4.3.1 Organic/Molecule-Based Magnet ..................................................... 159 4.3.2 New Phenomena and Opportunities in Molecule/Organic-Based
Magnets ............................................................................................ 160 4.3.3 TCNE-Based Magnet ....................................................................... 161 4.3.4 Organic-Based Magnetic Semiconductor V[TCNE]x ....................... 162 4.3.5 Spin-Driven Magnetoresistance of V[TCNE]x ................................. 167
4.3.5.1 Magnetotransport Data and Discussion ............................. 167 4.3.5.2 Model of a Half-Semiconductor ........................................ 170
4.3.6 Photoinduced Magnetism ................................................................. 172 4.3.7 Multiple Photonic Response in Organic-Based Magnetic
Semiconductor V[TCNE]x, x~2 ........................................................ 174 4.3.8 Photoinduced Magnetism and Random Magnetic Anisotropy in
Organic-Based Magnetic Semiconductor V[TCNE]x, x~2 ............... 179 4.3.9 Anomalous Magnetic Bistability and Nucleation of Magnetic
Bubbles in a Layered 2D Organic-Based Magnet ............................ 183
We introduce broad aspects of spintronic applications of organic materials. First, we address applications of organic semiconductors as either a spin-conserved tunneling barrier or spin-transporting spacer in ferromagnetorganic semiconductor-ferromagnet heterojunctions, which have been extensively investigated recently. A new class of noble set of magnets, organic-based magnets, is presented for their potential integration into magnetic multilayer devices toward all organic spin valves as well as for other opportunities and new phenomena. Finally, we discuss magnetotransport of organic semiconductors based on the spin conversion model.
