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Physical Basis for Advanced Micro- and Nano-electronics Including Superconducting Electronics and Spintronics

Valery V. Ryazanov, Professor, Dr. Phys.-Math.Sci.

Project target

The aim of the project is to create physical basis for conceptually new elements and superconducting electronics and spintronics devices based on hybrid nano- and micro structures, breakthrough research in NUST MISiS technological and instrumental base. 


1. Finalizing superconductor/ferromagnetic/superconductor junctions to be used for implementing Josephson magnetic memory and superconducting phase inverters. Development of such devices aims to substantially miniaturize the size of superconducting digital logics tile and to increase the coherence time of cubit-based quantum superconducting logics.

2. Using super thin-film unordered superconductors to develop compact hf and micro wave frequencies for application in astrophysics space research and telecommunication.  

3. Implementing matrix of superconducting bolometer with frequency-division multiplexing.


The project targets to develop conceptually new elements of superconducting electronics with unprecedented high-speed performance and energy efficiency.


The relevance of the project is determined by creating a direction developing physical basis of advanced micro and nano electronics, which is vital for NUST MISiS as a modern technological University. NUST MISiS for many years has been developing physics and chemistry of semiconductors. Meanwhile basing on Moore dependence (stating impossibility to increase integration of electronic semiconducting elements at the existing pace) the forecast predicts electronics concept change based on new hybrid structures of metals, superconductors, ferromagnetic and other new materials(such as graphene, topologic isolators); creating new logic environment based on using electron spins (spintronics). 


In spite of such purely psychological problem as cryo phobia and real challenges of superconducting electronics development, the market of such advanced electronics is constantly expanding. Such known producers of superconducting electronics as HYPRESS, Inc. (www.hypres.com) have reliable customers. Their products include reference volt, Josephson device for radio astronomy, SQUID-amplifiers, analogous-digital converters and digital synthesizer in L-band. The time has come when applied research of superconducting (and hybrid) structures for ultrafast electronics is becoming top important. For example, new 5-year American C3: IARPA Cryogenic Computing Complexity (C3) Program). Superconducting one-quant or RSFQ (Rapid Single Flux Quantum) digital electronics provide for unique characteristics: ultrafast performance (over 100 GHz), low energy consumption (below 1 microwatt per managing channel at 100 GHz), it can transfer along superconducting lines picosecond SFQ pulses with negligible losses, dispersion and line noises at sm distance at the speed close to light speed.

One of the challenges of ultrafast electronics is lack of compact, fast, energy-efficient memory compatible with RSFQ circuits. The announcement of C3 Program is connected with the hope that latest fundamental achievements in the development of thin film strictures superconductor/ferromagnetic (SF structures) may solve the problem. Recent patents of two competing American groups (headed by former Russian scientists) are based on using magnetic Josephson elements (SFS transition). The participants of the project pioneered the research in this field. The key participants of the program will be Northrop Grumman (Electronics Systems, Maryland) and MIT Lincoln Laboratory. Superconducting devices already can digitize and amplify signals above 20HGz directly on the receiving antenna.

One more drawback which prevents fast development of superconducting electronics is big size of base tile (determined by the necessity to keep quanta of magnetic stream) and lack of compact fast Josephson memory

Project objectives

The aim of the project is to create physical basis for conceptually new elements and superconducting electronics and spintronics devices based on hybrid nano- and micro structures, breakthrough research in NUST MISiS technological and instrumental base. 

Equipment

Superconducting materials laboratory possesses a substantial technological and experimental base. First of all it is technological zone, cryostats and micro wave equipment

Patents

Enhancing superconducting material. S.V.Shitov, S.V. Eimont, A.V.Ustinov Patent Application (registration number 2014153833)

Events research team

members with habilitation qualification

members with doctoral qualification
3 post graduate students
4 graduate students
1 engineer

Partnership and cooperation

·       Karlsruhe Institute of Technology (KIT), Germany

·       Russian Quantum Center, Skolkovo, Russia

·       Leibniz Institute of Photonic Technology (IPHT), Jena, Germany

·       Institute for Physics of Microstructures RAS, Nizhny Novgorod, Russia.

·       Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Russia.

·       Nippon Electric Corporation (NEC), Japan

·       Ruhr-Universität Bochum (RUB), Germany

·       Loughborough University, UK

·       University of Twente, the Netherland

·       Institute of Solid State Physics, RAS, Chernogolovka, Russia

·       Kotel'nikov Institute of Radio-engineering and Electronics (IRE) of RAS, Russia


1. I.ISolovievN.VKlenovS.VBakurskiyV.VBol'ginovV.VRyazanovM.YuKupriyanovA.A.GolubovJosephson magnetic rotary valve, Appl.Phys.Lett. 105, 242601 (2014)

2. A.VShcherbakovaK.GFedorovK.VShulgaV.VRyazanovV.VBolginovV.AOboznovS.V.EgorovV.OShkolnikovM.JWolfDBeckmann and A.VUstinov,

Fabrication and measurements of hybrid Nb/Al Josephson junctions and flux qubits with π-shifters,Supercond. Sci. Technol. 28, 025009 (2015)

3. S.V. Shitov, A.A. Kuzmin, M.Merker, M.Arndt, S.Wuensch,  K.Ilin,  N.Abramov, E.Erhan, A.V. Ustinov, M.Siegel, Wide-Range Bolometer with RF Readout TES, IEEE Trans. Appl. Supercond. 25, 3 (2014

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