Magnetic Josephson junction technology for digital and memory applications
VV Ryazanov, VV Bol'ginov, DS Sobanin, IV Vernik… - Physics Procedia, 2012 - Elsevier
Physics Procedia, 2012•Elsevier
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 co-exist in form of Magnetic Josephson Junctions (MJJs). The
superconducting-ferromagnetic MJJs are electrically compatible with traditional …
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 co-exist in form of Magnetic Josephson Junctions (MJJs). The
superconducting-ferromagnetic MJJs are electrically compatible with traditional …
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 co-exist 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.
Elsevier
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