A Full Adder Design Using Serially Connected Single-Layer Magnetic Tunnel Junction Elements

• Published in: IEEE transactions on electron devices Vol. 55; no. 3; pp. 890 - 895
• Main Authors: LEE, Seungyeon, SEO, Sunae, LEE, Seungjun, SHIN, Hyungsoon
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.03.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Adders; Applied sciences; Boolean functions; Circuit properties; CMOS; Design. Technologies. Operation analysis. Testing; Devices; Digital circuits; Driver circuits; Drivers; Electric, optical and optoelectronic circuits; Electronic circuits; Electronics; Exact sciences and technology; Flexibility; High speed; Integrated circuits; Integrated circuits by function (including memories and processors); Magnetic circuits; Magnetic separation; Magnetic tunnel junction; Magnetic tunneling; Magnetoelectric, magnetostrictive, magnetoacoustic, magnetooptic and magnetothermal devices. Spintronics; magnetoresistive devices; nonvolatile logic device; Resistance; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Stores; Tunnel junctions; nonvolatile logic device; Magnetic tunnel junction; magnetoresistive devices; Magnetoresistive device; Complex function; Series connection; Arithmetic circuit; High density; Driver; Boolean function; Adder; Algorithm; Flexibility; Magnetic tunneling junction; CMOS logic circuits; Power consumption; Integrated circuit; Low-power electronics; Logic devices
• ISSN: 0018-9383; 1557-9646
• DOI: 10.1109/TED.2007.914470

Magnetic tunnel junction (MTJ) elements based magnetologic promises many advantages over conventional CMOS logic devices. MTJ elements can be configured by simple circuitry to compute various Boolean functions and store the results. Advantages of magnetologic include low power consumption, the possibility of high-speed operation, and high density. We have proposed a novel magnetologic structure comprising a single-layer MTJ and a current driver, which requires fewer processing steps and provides enhanced functional flexibility and uniformity. Here, we expand the computational capabilities of single-layer MTJs, using series connections. An algorithm that realizes complex Boolean functions with fewer magnetologic elements than previous papers is presented.