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Sasikanth Manipatruni

Computing Innovator and Educator

Hello! I'm Sasikanth Manipatruni, a scientist and technologist working to build the next generation of computing, using new breakthrough materials applied to AI. My research is focused on the next generation materials and computer architectures to chart a new Moore's Law, driven by quantum materials. I was research director of Intel-FEINMAN center (Functional Electronics Integration and Manufacturing) and senior advisor to the CTO of Intel AI group. Previously I worked at GE-Healthcare demonstrating the first optically readout 3 Tesla MRI. I completed my Ph.D. from Cornell where I worked with Prof. Michal Lipson in ultra-fast silicon electro-optic switches, optomechanical non-reciprocity and synchronization of optomechanical systems. I coach middle/high school students for USA-PHO physics olympiads. As a principle, I do not espouse publicity for scientific/technology work. As Feynman rightly noted, "reality must take precedence over public relations". However, sometimes this does happen especially when there are inflection points for industry. That said, I am happy to chat about technology with just anyone.

Researchmore »


Magneto-Electric Spin-Orbit Logic

Manipatruni, Sasikanth and Nikonov, Dmitri E and Ramesh, Ramamoorthy and Li, Huichu and Young, Ian A

{arXiv} | (pdf)

As nanoelectronics approaches the nanometer scale, a massive effort is underway to identify the next scalable logic technology beyond Complementary Metal Oxide Semiconductor (CMOS) transistor based computing. Such computing technology needs to improve switching energy and delay at reduced dimensions, allow improved interconnects and provide a complete logic/memory family. However, a viable beyond-CMOS logic technology has remained elusive. Here, we propose a scalable spintronic logic device which operates via spin-orbit transduction combined with magneto-electric switching. The Magneto-Electric Spin-orbit (MESO) logic enables a new paradigm to continue scaling of logic device performance to near thermodynamic limitsfor GHz logic (100 kT switching energy at 100 ps delay). Read more »


Path to Beyond CMOS with Spin and Polarization

Sasikanth Manipatruni, Dmitri E. Nikonov & Ian A. Young

{Nature Physics, 2018}| (pdf)

In this article in Nature Physics, I outlined a path for computing technology that utilizes Spin and Polarization for memory and logic. Abstract : Spintronic and multiferroic systems are leading candidates for achieving attojoule-class logic gates for computing, thereby enabling the continuation of Moore’s law for transistor scaling. However, shifting the materials focus of computing towards oxides and topological materials requires a holistic approach addressing energy, stochasticity and complexity. Read more »

Exchange_bias_in_magneto_electric image

Exchange Bias in Magneto-electric Multi-ferroics

I. A. Young, S. Manipatruni, D. E. Nikonov, C-C Lin, H. Li, R. Ramesh

{sciencemag} | (pdf)

The physical mechanism for Magneto-electrics at the nano and micro-scale continues to provide new insights. One such key mechanism is the emergence of exchange bias from a partially compensated Anti-Ferro-magnetic (AFM) Multiferroic to a Ferro-magnet. The presence of the AFM order and a canted magnetic moment in this system causes exchange interaction with a ferromagnet such as Co0.9Fe0.1 or La0.7Sr0.3MnO3. Previous research has shown that exchange coupling (uniaxial anisotropy) can be controlled with an electric field. However, voltage modulation of unidirectional anisotropy, which is preferred for logic and memory technologies, has not yet been demonstrated. Here, we present evidence for electric field control of exchange bias of laterally scaled spin valves that is exchange coupled to BFO at room temperature. We show that the exchange bias in this bilayer is robust, electrically controlled, and reversible. Read more »

here's my Phd thesis.

Selected Papers and Postersmore »

  1. first page of paper
    Sasikanth Manipatruni, Dmitri E Nikonov, Chia-Ching Lin, Tanay A Gosavi, Huichu Liu, Bhagwati Prasad, Yen-Lin Huang, Everton Bonturim, Ramamoorthy Ramesh, Ian A Young. Scalable energy-efficient magnetoelectric spin–orbit logic. Nature Publishing Group volume 565 Issue 7737, pages 35. January 2019.
    Cited by: 105
    abstract▾ | bib▾
  2. first page of paper
    Sasikanth Manipatruni, Dmitri E. Nikonov, Ian A. Young. Modeling and Design of Spintronic Integrated Circuits. IEEE Transactions on Circuits and Systems I: Regular Papers, volume 59,issue 12, pages 2801-2814. 21 November 2012.
    Cited by: 76
    abstract▾ | bib▾
  3. first page of paper
    Sasikanth Manipatruni, Qianfan Xu, Bradley Schmidt, Jagat Shakya, Michal Lipson. High speed carrier injection 18 Gb/s silicon micro-ring electro-optic modulator. LEOS 2007-IEEE Lasers and Electro-Optics Society Annual Meeting Conference Proceedings, pages 537-538. 21 October 2007.
    Cited by: 1101
    abstract▾ | bib▾
  4. first page of paper
    Sasikanth Manipatruni, Jacob T Robinson, Michal Lipson. Optical non-reciprocity in optomechanical structures. Phys. Rev. Lett volume 102 Issue 21, pages 213903. 31 May 2009.
    Cited by: 150
    abstract▾ | bib▾
  5. first page of paper
    Manipatruni, Sasikanth and Nikonov, Dmitri E and Liu, Huichu and Young, Ian A. Response to Comment on'Spin-Orbit Logic with Magnetoelectric Nodes: A Scalable Charge Mediated Nonvolatile Spintronic Logic. arXiv preprint arXiv:1703.01559. 5 March 2017.

    abstract▾ | bib▾
  6. first page of paper
    Manipatruni, Sasikanth and Nikonov, Dmitri and Young, Ian A. Vector spin modeling for magnetic tunnel junctions with voltage dependent effects. Journal of Applied Physics, volume 115, issue 17, pages 17B754. 7 May 2014.
    Cited by: 11
    abstract▾ | bib▾
  7. first page of paper
    Mian Zhang,Gustavo S. Wiederhecker,Sasikanth Manipatruni,Arthur Barnard,Paul McEuen,and Michal Lipson. Synchronization of Micromechanical Oscillators Using Light. Physics review letters, volume 109, issue 23, pages 233906. 5 December 2012.
    Cited by: 288
    abstract▾ | bib▾

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Selected Patents

Selected Pressmore »