Articles Conferences  Patents

  

 Articles in peer-reviewed journals

1.

Title: Frequency-division multiplexing in magnonic logic networks based on caustic-like spin-wave beams
Authors: F. Heussner, M. Nabinger, T. Fischer, T. Brächer, A. A. Serga, B. Hillebrands, and P. Pirro
Journal reference: Physica Status Solidi – Rapid Research Letters, 1800409 (2018)

   

 

Preprints

1.

Title: A passive GHz frequency-division multiplexer/demultiplexer based on anisotropic magnon transport in magnetic nanosheets
Authors: F. Heussner, G. Talmelli, M. Geilen, B. Heinz, T. Brächer, T. Meyer, F. Ciubotaru, C. Adelmann, K. Yamamoto, A. A. Serga, B. Hillebrands, and P. Pirro
arXiv:1812.01379

 2.

Title: Realization of a nanoscale magnonic directional coupler for all-magnon circuits
Authors: Q. Wang, M. Kewenig, M. Schneider, R. Verba, B. Heinz, M. Geilen, M. Mohseni, B. Lägel, F. Ciubotaru, C. Adelmann, C. Dubs, P. Pirro, T. Brächer, and A. V. Chumak
arXiv:1905.12353

   

 

 

Conferences

1.

Title: First experimental demonstration of a scalable linear majority gate based on spin waves
Authors: F. Ciubotaru, G. Talmelli, T. Devolder, O. Zografos, M. Heyns, C. Adelmann and I. P. Radu
Conference: 2018 IEEE International Electron Devices Meeting (IEDM) – 2018. San Francisco, USA

2.

Title: Computing with spin waves: from magnetoelectric transducers to majority gates
Authors: F. Ciubotaru, D. Tierno, G. Talmelli, H. Ahmad, D. Costa, R. Duflou, K. Garello, I. P. Radu, T. Devolder and C. Adelmann
Conference: 2018 International Conference on Magnetism (ICM) – 2018, San Francisco, USA (invited presentation)

3.

Title: Spin waves for unconventional computing and data processing
Authors: P. Pirro
Conference: Nanomaterials for sensors – 2018, Nancy, France

4. 

Title: Micrometer-scale spin wave majority gates with frequency multiplexing capability
Authors: G. Talmelli, U.K. Bhaskar, M. Heyns, I. P. Radu, C. Adelmann, F. Ciubotaru, T. Devolder, and C. Chappert
Conference: Metallic Multilayers – 2019, Madrid, Spain

5. 

Title: Backward volume vs. Damon-Eschbach: a travelling spin wave spectroscopy comparison
Authors: U.K. Bhaskar, G. Talmelli, F. Ciubotaru, C. Adelmann, and T. Devolder
Conference: Colloque Louis Neel – 2019, Toulouse, France

6. 

Title: BPZT HBARs as large-amplitude stress transducers at GHz frequencies
Authors: U.K. Bhaskar, D. Tierno, G. Talmelli, F. Ciubotaru, C. Adelmann, S. Matzen, and T. Devolder
Conference: IEEE ISAF conference – 2019, Lausanne, Switzerland

7. 

Title: Frequency-division multiplexing in magnonic logic networks based on caustic-like spin-wave beams
Authors: F. Heussner, G. Talmelli, M. Nabinger, T. Fischer, M. Geilen, B. Heinz, T. Brächer, A. A. Serga, C. Adelmann, F. Ciubotaru, B. Hillebrands, P. Pirro
Conference: Joint MMM-Intermag conference – 2019, Washington DC, USA

8. 

Title: Magnetoelastic spin wave excitation in non-uniform magnetized waveguides
Authors: F. Vanderveken, F. Ciubotaru, M. Heyns, B. Sorée, I. P. Radu, and C. Adelmann
Conference: Joint MMM-Intermag conference – 2019, Washington DC, USA

9. 

Title: Caustic-beam-based two-dimensional microscale magnonic devices
Authors: A. A. Serga, F. Heussner, G. Talmelli, M. Geilen, B. Heinz, K. Yamamoto, T. Brächer, C. Adelmann, F. Ciubotaru, B. Hillebrands, and P. Pirro
Conference: accepted at Magnonics 2019 – 2019, Carovigno, Italy

10. 

Title: Determining magneto-elastic coupling coefficients by anisotropic magnetoresistance
Authors: H. Ahmad, M. Kouwenhoven, F. Vanderveken, D. Tierno, I. P. Radu, F. Ciubotaru, and C. Adelmann
Conference: accepted at Magnonics 2019 – 2019, Carovigno, Italy

11. 

Title: Magnetoelastic excitation in non-uniformly magnetized waveguides
Authors: F. Vanderveken, F. Ciubotaru, M. Heyns, B. Sorée, I. P. Radu, and C. Adelmann
Conference: accepted at Magnonics 2019 – 2019, Carovigno, Italy

12. 

Title: Backward volume vs Damon-Eschbach: A travelling Spin wave spectroscopy comparison
Authors: U.K. Bhaskar, G. Talmelli, F. Ciubotaru, C. Adelmann, and T. Devolder
Conference: accepted at Magnonics 2019 – 2019, Carovigno, Italy

13. 

Title: Determination of large voltage response of sub-micron Ni-PZT magneto-electric composite by anisotropic magnetoresistance
Authors: H. Ahmad, M. Kouwenhoven, F. Vanderveken, D. Tierno, I. P. Radu, F. Ciubotaru, and C. Adelmann
Conference:
 accepted at Joint European Magnetic Symposia (JEMS) – 2019, Uppsala, Sweden

14. 

Title: Logic gates based on spin waves
Authors: F. Ciubotaru, G. Talmelli, T. Devolder, N. Träger, J. Gräfe, I. P. Radu, and C. Adelmann
Conference: Invited presentation at 42nd International Semiconductor Conference (CAS) – 2019, Sinaia, Romania

15. 

Title: Magnetoelectric devices for spintronic applications
Authors: C. Adelmann, D. Tierno, H. Ahmad, M. Kouwenhoven, T. Jost, M. Geilen, F. Vanderveken, G. Talmelli, A. V. Chumak, P. Pirro, F. Ciubotaru, and I. P. Radu
Conference: invited presentation at 42nd International Semiconductor Conference (CAS) – 2019, Sinaia, Romania

16. 

Title: The effect of magnetostrictive metallizations on the behaviour of GaN/Si SAW resonators in magnetic field
Authors: A. Nicoloiu, F. Ciubotaru, C. Nastase, A. Dinescu, S. Iordanescu, D. Vasilache, H. Ahmad, P. Pirro, C. Adelmann and A. Müller
Conference: accepted at 42nd International Semiconductor Conference (CAS) – 2019, Sinaia, Romania

 

 

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The vision of CHIRON is to complement and, in the long term, replace CMOS by spin wave computing circuits.


The CHIRON objectives:

 
  • Development of magnetoelectric and multiferroic nanoresonators as spin wave transducers. 

  • Development of spin wave waveguides with sub-micrometre wavelengths. 

  • Demonstration of logic inverters as well as three-input majority gates based on the magnetoelectric and multiferroic transducers and waveguides.

  • Demonstration of frequency multiplexing in these devices.

  • Design of hybrid spin wave–CMOS circuits and benchmarking against standard CMOS using calibrated compact models of transducers and logic gates as well as interconnects.

 

    

   

 

The CHIRON consortium consists of nine partners from six European countries. It comprises three research universities, three public research centres, one independent non-profit research centre, and two companies (both with a strong research focus), including one high-tech SME.

Expertise: The objectives of CHIRON can only be achieved when several scientific and technological disciplines are brought together, namely materials science, semiconductor manufacturing, physics, electrical engineering, as well as circuit design. CHIRON aims to create a novel multidisciplinary research community from partners in spin wave physics (UPSud, UNIKL, Thales), magnetoelectric and mutliferroic materials (UPSud, CNRS), RF-NEMS (IMT, FORTH), device manufacturing (IMEC, Solmates), and circuit design (TUD). The project also brings together partners with the required diverse experimental facilities, including thin film deposition/characterisation, nanofabrication, RF electrical characterisation, as well as magnetic and spin wave characterisation.

 

 

Partner contacts

 

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The future miniaturisation of electronic circuits following Moore’s law will require the introduction of increasingly disruptive technologies to limit power consumption and optimise performance per circuit area. CHIRON envisions spin wave computing to complement and eventually replace CMOS in future microelectronics. Spin wave computing is a paradigm-shifting technology that uses the interference of spin waves for computation. Spin wave computing has the potential for significant power and area reduction per computing throughput while reducing cost by alleviating lithography requirements. As a first step towards the vision of a full spin wave computer, CHIRON envisions hybrid spin wave–CMOS circuits that can be readily integrated alongside CMOS.


CHIRON targets a proof of principle of the essential elements for spin wave computing by an interdisciplinary approach joining partners with expertise in material science, physics, nano-manufacturing, electrical engineering, device simulation, and circuit design. CHIRON will fabricate basic logic gates, such as inverters and majority gates, demonstrate their operation, and assess their performance. As transducers between the CMOS and spin wave domains in hybrid circuits, CHIRON will develop magnetoelectric and multiferroic nanoresonators, based on nanoscale bulk acoustic resonators, which bear promise for high energy efficiency and large output signal. The targeted lateral scale (100 nm) and resonance frequency (>10 GHz) bring such resonators to the frontier of nano-electromechanical systems (NEMS).
This technological proof of principle is complemented by the design of digital hybrid spin wave–CMOS circuits that show the advantages of spin wave computing and can be integrated into a CMOS environment. Based on calibrated compact device models, the performance of these circuits in terms of power, area, and throughput will be benchmarked against CMOS to demonstrate their viability.

         

 

 

 

 

The CHIRON project,
a project funded by the EU under the H2020 programme
(contract number: 692519)