Q-MEEN-C 2 Launched in Ceremony of Funding Renewal

The U.S. Department of Energy's EFRC
Q-MEEN-C 2 is officially launched in a ceremony of renewed funding that featured distinguished guests such as California's 52nd Congressional District Representative Scott Peters and UC San Diego Chancellor Pradeep Khosla who honored attendees with their words after a comprehensive introduction by Director Ivan K. Schuller, reminding us of the center's importance in present and future science:

"During the semiconductor revolution, materials science helped developers identify silicon and germanium as ideal materials. It is the same now, where we see quantum materials as the key to increasing computational power while also decreasing local energy consumption."

Posted 9.3.2022

Q-MEEN-C studying materials whose traits resemble those of the human brain

Humanity is far from having artificial computers that can match the capabilities of the human brain, outside a narrow range of well-defined tasks. Will we ever capture the brain’s magic? To help answer that question, MRL’s Axel Hoffmann recently led the writing of an APL Materials “Perspectives” article that summarizes and reflects on efforts to find so-called “quantum materials” that can mimic brain function.

Posted 8.3.2022

Marcelo Rozenberg appointed Editor of Frontiers in Neuroscience

Joined as Associate Editor for the specialty section of Neuromorphic Engineering.

Q-MEEN-C Principal Investigator, Marcelo Rozenberg, has been recently appointed to the Editorial Board of Frontiers in Neuroscience in the Neuromorphic Engineering specialty section as Associate Editor.

Posted 5.25.2022

Q-MEEN-C's Vitaliy Lomakin named an IEEE Fellow

Citation: "for contributions to theoretical and computational electromagnetics"

IEEE Fellow is a distinction conferred by the Board of Directors upon select IEEE members whose extraordinary accomplishments in any of the IEEE fields of interest are deemed fitting of this prestigious grade elevation. The total number selected in any one year does not exceed one-tenth of one percent of the total voting Institute membership.

Posted 12.15.2021

Q-MEEN-C's Mark Stiles named an IEEE Fellow

Citation: "for contributions to spintronics devices and data storage"

IEEE Fellow is a distinction conferred by the Board of Directors upon select IEEE members whose extraordinary accomplishments in any of the IEEE fields of interest are deemed fitting of this prestigious grade elevation. The total number selected in any one year does not exceed one-tenth of one percent of the total voting Institute membership. Listen to Stiles' invited podcast in which he shares his insights on the IEEE Magnetics Society's work as it relates to neuroscience and brain-inspired computing technologies. He also offers his advice to students and young professionals who might be interested in relevant technologies fields.

Posted 12.15.2021

Q-MEEN-C's Andrew Kent named an IEEE Fellow

Citation: "for contributions to the application of spin-transfer torques in nano-scale devices"

IEEE Fellow is a distinction conferred by the Board of Directors upon select IEEE members whose extraordinary accomplishments in any of the IEEE fields of interest are deemed fitting of this prestigious grade elevation. The total number selected in any one year does not exceed one-tenth of one percent of the total voting Institute membership.

Posted 11.23.2021

Q-MEEN-C's Julie Grollier awarded the 2021 Irène Joliot-Curie Prize

The Irène Joliot-Curie Prize is awarded annually by the French Academy of Sciences. The "Female Scientist of the Year" category honors women who have made a contribution in the public or private research field through the significance, and national and international recognition of their work in science.

Posted 11.23.2021

Q-MEEN-C researchers report large interfacial spin-charge conversion in gold multilayers

Authors: Mohammed Salah El Hadri, Jonathan Gibbons, Yuxuan Xiao, Haowen Ren, Hanu Arava, Yuzi Liu, Zhaowei Liu, Amanda Petford-Long, Axel Hoffmann, and Eric E. Fullerton

Interfacial spin-orbit effects in gold convert charge currents into angular momentum-carrying spin currents and vice versa. These spin currents can be used to control spin torque nano-oscillators for neuromorphic computing. Q-MEEN-C scientists have maximized these effects by creating extremely thin gold-silicon multilayers with many interfaces. These structures were shown to produce large spin-charge conversion efficiencies. In the figure above, (a) shows the process of lateral charge-to-spin conversion and (b) shows the efficiency of conversion on a log-log plot as a function of the thickness of the gold.

Posted 11.04.2021

Q-MEEN-C's Axel Hoffmann receives American Physical Society’s 2022 David Adler Lectureship Award in the Field of Materials Physics

Citation: "For pioneering work, engaging lectures, and comprehensive reviews advancing the understanding of spin transport and magnetization dynamics in magnetic multilayers."

Posted 10.28.2021

Q-MEEN-C researchers simulate artificial brain networks with new quantum materials

The figure demonstrates brain-like emergent properties of quantum-materials-based devices

Posted 9.30.2021

Q-MEEN-C researchers demonstrate the first quantum material spintronic resonator for applications in neuromorphic computing

In the hybrid metal‐insulator‐transition oxide (V2O3)/ ferromagnetic metal (Ni, Fe) nanoconstriction spin resonator shown above , (a) is the materials geometry and (b) is a scanning electron microscopy image of the nanoconstriction showing the current flow.

Spin resonators excite spin waves that convert a high frequency signal into a dc voltage; they have been used as synapses in oscillator based neuromorphic circuits. By incorporating a metal‐insulator‐transition oxide, spin resonators were demonstrated to have hysteresis and memory of their prior state, a new characteristic for spin resonators (which previously only incorporated ferromagnetic metals) and an important characteristic for oscillator-based synapses.

Posted 7.23.2021

Q-MEEN-C Researchers Report on Topotactic Transformations in Cobaltite Thin Films with Potential Applications in Neuromorphic Computing

This paper is featured as an Editors' Suggestion, a designation intended to direct readers to interesting, important, and well-written articles in areas of research beyond their usual interests.

Q-MEEN-C research reveals that a series of electronic and magnetic phases can be formed by systematically exposing the parent (La,Sr)CoO3 perovskite oxide to highly reducing annealing conditions. Under these conditions, the movement of both oxygen and cobalt ions in and out of the lattice (i.e., a topotactic transformation) represents a new direction for discovery of functional materials for brain-inspired computing.

Posted 7.02.2021