一种节能的混合自旋-应变可重构位比较器
Energy-efficient hybrid spintronic-straintronic reconfigurable bit comparator
摘要：
我们提出了一种可重构的位比较器实现与纳米线自旋阀，其两个接触是磁致伸缩与磁致伸缩磁化。参考位和输入位被“写入”到具有电产生的应变的两个触点的磁化状态中，并且如果它们匹配，则自旋阀的电阻降低。多个比较器可以与磁隧穿结并行接口，以逐位确定N位输入流是否与N位参考流匹配。该系统在室温下对热噪声具有鲁棒性，16位比较器可以在大约416 MHz下工作，而每个周期的功耗最多为420 aJ。
英文摘要：
We propose a reconfigurable bit comparator implemented with a nanowire spin valve whose two contacts are magnetostrictive with bistable magnetization. Reference and input bits are "written" into the magnetization states of the two contacts with electrically generated strain and the spin-valve's resistance is lowered if they match. Multiple comparators can be interfaced in parallel with a magneto-tunneling junction to determine if an N-bit input stream matches an N-bit reference stream bit by bit. The system is robust against thermal noise at room temperature and a 16-bit comparator can operate at roughly 416 MHz while dissipating at most 420 aJ per cycle.
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