The effect of output-input isolation on the scaling and energy consumption of all-spin logic devices

被引:9
作者
Hu, Jiaxi [1 ]
Haratipour, Nazila [1 ]
Koester, Steven J. [1 ]
机构
[1] Univ Minnesota Twin Cities, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA
关键词
PROPOSAL; DESIGN; GATE;
D O I
10.1063/1.4915907
中图分类号
O59 [应用物理学];
学科分类号
摘要
All-spin logic (ASL) is a novel approach for digital logic applications wherein spin is used as the state variable instead of charge. One of the challenges in realizing a practical ASL system is the need to ensure non-reciprocity, meaning the information flows from input to output, not vice versa. One approach described previously, is to introduce an asymmetric ground contact, and while this approach was shown to be effective, it remains unclear as to the optimal approach for achieving non-reciprocity in ASL. In this study, we quantitatively analyze techniques to achieve non-reciprocity in ASL devices, and we specifically compare the effect of using asymmetric ground position and dipole-coupled output/input isolation. For this analysis, we simulate the switching dynamics of multiple-stage logic devices with FePt and FePd perpendicular magnetic anisotropy materials using a combination of a matrix-based spin circuit model coupled to the Landau-Lifshitz-Gilbert equation. The dipole field is included in this model and can act as both a desirable means of coupling magnets and a source of noise. The dynamic energy consumption has been calculated for these schemes, as a function of input/output magnet separation, and the results show that using a scheme that electrically isolates logic stages produces superior non-reciprocity, thus allowing both improved scaling and reduced energy consumption. (c) 2015 AIP Publishing LLC.
引用
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页数:4
相关论文
共 18 条
[1]   Switching energy-delay of all spin logic devices [J].
Behin-Aein, Behtash ;
Sarkar, Angik ;
Srinivasan, Srikant ;
Datta, Supriyo .
APPLIED PHYSICS LETTERS, 2011, 98 (12)
[2]  
Behin-Aein B, 2010, NAT NANOTECHNOL, V5, P266, DOI [10.1038/nnano.2010.31, 10.1038/NNANO.2010.31]
[3]   Circuit Simulation of Magnetization Dynamics and Spin Transport [J].
Bonhomme, Phillip ;
Manipatruni, Sasikanth ;
Iraei, Rouhollah M. ;
Rakheja, Shaloo ;
Chang, Sou-Chi ;
Nikonov, Dmitri E. ;
Young, Ian A. ;
Naeemi, Azad .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2014, 61 (05) :1553-1560
[4]   THERMAL FLUCTUATIONS OF A SINGLE-DOMAIN PARTICLE [J].
BROWN, WF .
PHYSICAL REVIEW, 1963, 130 (05) :1677-+
[5]   Design and Analysis of Copper and Aluminum Interconnects for All-Spin Logic [J].
Chang, Sou-Chi ;
Iraei, Rouhollah Mousavi ;
Manipatruni, Sasikanth ;
Nikonov, Dmitri E. ;
Young, Ian A. ;
Naeemi, Azad .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2014, 61 (08) :2905-2911
[6]   Midpoint numerical technique for stochastic Landau-Lifshitz-Gilbert dynamics [J].
d'Aquino, M ;
Serpico, C ;
Coppola, G ;
Mayergoyz, ID ;
Bertotti, G .
JOURNAL OF APPLIED PHYSICS, 2006, 99 (08)
[7]   Majority logic gate for magnetic quantum-dot cellular automata [J].
Imre, A ;
Csaba, G ;
Ji, L ;
Orlov, A ;
Bernstein, GH ;
Porod, W .
SCIENCE, 2006, 311 (5758) :205-208
[8]   Electrical spin injection and accumulation at room temperature in an all-metal mesoscopic spin valve [J].
Jedema, FJ ;
Filip, AT ;
van Wees, BJ .
NATURE, 2001, 410 (6826) :345-348
[9]   Integration of spintronic interface for nanomagnetic arrays [J].
Lyle, Andrew ;
Harms, Jonathan ;
Klein, Todd ;
Lentsch, August ;
Klemm, Angeline ;
Martens, Daniel ;
Wang, Jian-Ping .
AIP ADVANCES, 2011, 1 (04)
[10]   Modeling and Design of Spintronic Integrated Circuits [J].
Manipatruni, Sasikanth ;
Nikonov, Dmitri E. ;
Young, Ian A. .
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2012, 59 (12) :2801-2814