The cover of Applied Physics Letters' first issue of 2022 features the work of IMG members Dr. Jaesung Lee and Prof. Philip Feng and their collaborator. In the article, “Design of strongly nonlinear graphene nanoelectromechanical systems in quantum regime,” the authors show that atomically thin nonlinear nanoelectromechanical systems (NEMS) can offer sufficient anharmonicity for quantum NEMS to behave like artificial atoms, thus feasible to enable qubit devices with much smaller footprints than today’s qubit hardware.
The recent article titled, "Resolving Mechanical Properties and Morphology Evolution of Free-Standing Ferroelectric Hf0.5Zr0.5O2" targets the accurate extraction of Young's modulus, built-in stress, and crystal morphology change upon release of hafnia-zirconia thin films. Hafnia-zirconia is uniquely positioned to revolutionize nanoscale transducers, allowing for nanomechanical sensors and actuators to be monolithically integrated within CMOS.
Congratulations to IMG member Richard Rode, advised by Dr. Saeed Moghaddam, for their latest paper on using graphene oxide as an active membrane in dialysis applications that was featured on the cover of Advanced Materials Interfaces!
Check it out here: https://onlinelibrary.wiley.com/doi/10.1002/admi.202001985
Soon to graduate PhD member of IMG and Dr. Tabrizian’s research group, Mayur Ghatge, recently published a great paper in Nature Electronics titled, “An Ultrathin Integrated Nanoelectromechanical Transducer Based on Hafnium Zirconium Oxide.” Awesome work Mayur!
Check out his paper here: https://www.nature.com/articles/s41928-019-0305-3
Research article by Aneesh Koka and Dr. Henry A. Sodano entitled “High-sensitivity accelerometer composed of ultra-long vertically aligned barium titanate nanowire arrays” has been published recently in Nature Communications. A brief summary of the article is presented as follows
"Aligned piezoelectric nanowires show great promise for sensing applications, however it is yet to be demonstrated that they can be used as an accurate dynamic sensor. Here, Koka and Sodano demonstrate the first synthesis of vertically aligned arrays of ultra-long (~45 µm) barium titanate nanowires and their application as a nano electromechanical system accelerometer that offers high sensitivity"
Haixiong Tang’s PhD research with Dr. Henry Sodano titled “Ultra High Energy Density Nanocomposite Capacitors with Fast Discharge Using Ba0. 2Sr0. 8TiO3 Nanowires” has been published in Nano Letters (2012 impact factor: 13.198).
Dr. David Arnold and Dr. YK Yoon co-authored a chapter on metal deposition processes in the recently published MEMS Materials and Processes Handbook. With contributions from 35 industrial and academic MEMS researchers worldwide, the handbook provides a comprehensive reference for new materials, known materials, and specific processes for MEMS fabrication.