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Volume 43 - January 2018

Contents

Page 6 of 17

Technical Feature

  • Voltage-controlled magnetoelectric memory and logic devices

  • Xiang Li, Albert Lee, Seyed Armin Razavi, Hao Wu, Kang L. Wang
  • Published online by Cambridge University Press:
    10 December 2018, pp. 970-977

  • Harnessing the nonvolatility of magnetism and the power of electric control, magnetoelectric devices that control magnetism electrically promise to deliver next-generation electronics systems that can store and compute large amounts of information with minimal power consumption and ultrafast processing speed. We highlight progress in magnetoelectric memory and logic prototypes using the voltage-controlled magnetic anisotropy (VCMA) effect. First, important performance metrics of VCMA-based magnetoelectric random access memory (MeRAM) are benchmarked against embedded complementary metal oxide semiconductor and other emerging embedded nonvolatile memories. We then discuss scaling of MeRAM from the physics and materials perspectives of the VCMA effect, as well as the use of magnetoelectric logic devices and circuits to realize new computing paradigms with VCMA. Finally, challenges to realize the full potential of VCMA-based memory and logic are presented: VCMA coefficient of 1000 fJ/V-m for energy-efficient write with low errors and tunneling magnetoresistance of 1000% for high density and low noise margin readout. New approaches for deterministic switching based on VCMA are needed. We share perspectives to address these challenges using new materials and device operation schemes.

Departments

News & Analysis

Materials News

  • Experiments confirm predicted high thermal conductivity of boron arsenide

  • Melissae Fellet
  • Published online by Cambridge University Press:
    10 October 2018, p. 727
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  • Nano Focus: Nanocones make glass invisible

  • Prachi Patel
  • Published online by Cambridge University Press:
    10 January 2018, pp. 8-9
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Opinion

Letter from the President

  • Advocating on behalf of the materials research community

  • Sean J. Hearne
  • Published online by Cambridge University Press:
    10 July 2018, pp. 469-470
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News & Analysis

Materials News

  • Hydrophobic and hydrophilic surfaces hold tight through chemical silane bonds

  • Hortense Le Ferrand
  • Published online by Cambridge University Press:
    10 May 2018, p. 318
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  • Porous coating protects ceramics from surface thermal fatigue

  • Hortense Le Ferrand
  • Published online by Cambridge University Press:
    09 November 2018, p. 814
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  • Kirigami art and geometric manipulation transform rigid solids to flexible auxetic materials

  • Eva Karatairi
  • Published online by Cambridge University Press:
    09 February 2018, p. 79
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  • Probing the buried interface between graphite layers

  • YuHao Liu
  • Published online by Cambridge University Press:
    11 April 2018, pp. 253-254
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  • Bio Focus: Flexoelectricity found in bone

  • Vineet Venugopal
  • Published online by Cambridge University Press:
    11 April 2018, pp. 254-255
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Energy Quarterly

Regional Initiative

  • Renewable energy in Kazakhstan rises in the shadow of fossil fuels

  • Eva Karatairi, Luis R. Rojas-Solórzano, Aiymgul Kerimray
  • Published online by Cambridge University Press:
    10 September 2018, pp. 656-658
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Editorial

  • Crises and opportunities at the energy-water interface

  • Eva Karatairi, Seth B. Darling
  • Published online by Cambridge University Press:
    11 June 2018, pp. 404-405
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News & Analysis

Materials News

  • Na-K alloy electrode and K-β′′-alumina electrolyte unlock high-voltage flow batteries

  • Tianyu Liu
  • Published online by Cambridge University Press:
    10 October 2018, p. 728
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  • E-skin sensor self-heals and can be recycled

  • Boris Dyatkin
  • Published online by Cambridge University Press:
    10 May 2018, p. 319
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Energy Quarterly

Energy Sector Analysis

Research Article

  • The path of CO2 and CH4 conversion to environmentally friendly materials

  • Eva Karatairi, Ellen D. Williams, Kristen Brown
  • Published online by Cambridge University Press:
    09 March 2018, pp. 172-173
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Opinion

Editorial

  • Calling all postdocs …

  • Gopal R. Rao
  • Published online by Cambridge University Press:
    10 July 2018, p. 471
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News & Analysis

Materials News

  • Energy Focus: Structural water plays key role in hybrid energy-storage device

  • Boris Dyatkin
  • Published online by Cambridge University Press:
    10 August 2018, pp. 567-568
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Energy Quarterly

Interview

  • Using the near-absolute-zero temperature of outer space to cool things on Earth

  • Tim Palucka
  • Published online by Cambridge University Press:
    10 December 2018, pp. 915-917
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News & Analysis

Materials News

  • Catalyst technique “upgrades” methane into methanol, acetic acid

  • Doug Main
  • Published online by Cambridge University Press:
    09 February 2018, pp. 80-81
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  • Energy Focus: Earth-abundant photocorrosion-resistant material used for solar water splitting

  • Rahim Munir
  • Published online by Cambridge University Press:
    10 January 2018, p. 9
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  • Dynamic domain walls enable ferroelectrics with GHz microwave tunability, ultralow loss

  • Xiwen Gong
  • Published online by Cambridge University Press:
    09 November 2018, pp. 814-815
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Page 6 of 17