Magnetic Josephson junction technology for digital and memory applications

被引：96
作者：
Ryazanov, Valery V. [2 ,3 ]
Bol'ginov, Vitaly V. [2 ]
Sobanin, Danila S. [2 ]
Vernik, Igor V.
Tolpygo, Sergey K.
Kadin, Alan M.
Mukhanov, Oleg A. [1 ]
机构：
[1] HYPRES Inc, 175 Clearbrook Rd, Elmsford, NY 10523 USA
[2] Russian Acad Sci, Inst Solid State Phys, R-142432 Chernogolovka, Russia
[3] InQubit Inc, Torrance, CA 90503 USA
来源：
SUPERCONDUCTIVITY CENTENNIAL CONFERENCE 2011 | 2012年 / 36卷
关键词：
cryogenic electronics; RAM; superconducting; ferromagnetic; energy efficient; low power; high density; programmable logic; FERROMAGNET;
D O I：
10.1016/j.phpro.2012.06.126
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The lack of dense, fast, energy efficient memory has been the main detractor for multiple superconducting digital projects in the past. Recently, fundamental physics research in superconductor-ferromagnet thin-film tunnel structures created a new opportunity to solve this long-standing problem. Superconductivity and ferromagnetism, two deeply antagonistic electronic properties, can coexist in form of Magnetic Josephson Junctions (MJJs). The superconducting-ferromagnetic MJJs are electrically compatible with traditional superconductor-insulator-superconductor (SIS) Josephson junctions (JJs) used for digital energy-efficient single flux quantum (eSFQ/ERSFQ) circuits. Both MJJ and JJ circuits have similar fabrication process and can be integrated on a single chip. As a result, a combination of MJJs and JJs can be used to form addressable memory cells, energy-efficient memory periphery circuits and programmable logic elements. In this paper, we present the test results of superconductor-insulator-ferromagnet-superconductor (SIFS) MJJs showing their applicability for superconducting spintronic memory and digital circuits. (C) 2012 Published by Elsevier B.V. Selection and/or peer-review under responsibility of the Guest Editors.
引用
收藏
页码：35 / 41
页数：7
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