期刊
APPLIED PHYSICS LETTERS
卷 84, 期 13, 页码 2307-2309出版社
AMER INST PHYSICS
DOI: 10.1063/1.1689403
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We propose and theoretically analyze a metal-oxide-semiconductor field-effect-transistor (MOSFET) type of spin transistor (spin MOSFET) consisting of a MOS structure and half-metallic-ferromagnet (HMF) contacts for the source and drain. When the magnetization configuration of the HMF source and drain is parallel (antiparallel), highly spin-polarized carriers injected from the HMF source to the channel are transported into (blocked by) the HMF drain, resulting in the magnetization-configuration-dependent output characteristics. Our two-dimensional numerical analysis indicates that the spin MOSFET exhibits high (low) current drive capability in the parallel (antiparallel) magnetization, and that extremely large magnetocurrent ratios can be obtained. Furthermore, the spin MOSFET satisfies other important requirements for spintronic integrated circuits, such, as high amplification capability, low power-delay product, and low off-current. (C) 2004 American Institute of Physics.
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