Prof. Geoff Beach Prof. Geoffrey Beach, MIT

Geoffrey Beach: Drawn to explore magnetism

(04/24/2017) - Geoffrey Beach has been tinkering and building things most of his life, including some 50 model rockets that he built and launched while in high school in Oklahoma. But it wasn’t until his undergraduate studies in physics that he zeroed in on the topic that has dominated his research ever since: the study of magnetism and how to control it. In his work, Beach combines the deep, theoretical understanding of a physicist with an engineer’s passion for building and refining the devices needed to carry out his investigations. Read More.


Flipping a Magnetic Memory Cell with a Light Pulse

(03/01/2017) - Scientists at the University of Minnesota have created a magnetic tunnel junction (MTJ) that can be switched by a pulse of light lasting one trillionth of a second, setting a speed record. The magnetic tunnel junction is a device critical to information technology with the termination of Moore’s law, a principle that has ruled the microelectronics industry for five decades. Read More.


MgO-barrier Magnetic Tunnel Junction Goes Flexible

(02/02/2017) - A new article, which appeared online in Scientific Reports, from C-SPIN’s PIs Jian-Ping Wang (UMN) and Mo Li (UMN), has reported a method to fabricate high-performance MgO-barrier magnetic tunnel junctions directly onto ultrathin flexible silicon membrane. The magnetic tunnel junction (MTJ) using MgO barrier is one of most important building blocks for spintronic devices for memory and computing applications and has been widely utilized as miniaturized magnetic sensors too. Read More.

image Magnetic force microscope image of 30 nm
Tm3Fe5O12, TmIG. Light color = up-spin,
dark color = down-spin.

A Breakthrough in Current-Induced Switching

(12/12/2016) - A new paper from C-SPIN’s Geoffrey Beach (MIT) and Caroline Ross (MIT) reports the first instance of current-induced switching in a magnetic insulator. The paper, which appears online in Nature Materials, describes current driven through a Pt overlayer switching a perpendicularly magnetized thulium iron garnet film through spin-orbit torque. Read More.

Prof. Sachin Sapatnekar Prof. Sachin Sapatnekar
Univ. of Minnesota

UMN C-SPIN PI, Prof. Sachin Sapatnekar Named ACM Fellow

(12/08/2016) - The Association for Computing Machinery has named Prof. Sachin Sapatnekar as one of its 2016 ACM Fellows for “contributions to the enhancement of performance and reliability in integrated circuits.” Prof. Sapatnekar’s research focuses on computer-aided design (CAD) of VLSI systems. Some of the  specific problems that his research team have worked on recently include spintronics-based design, thermal analysis, reliability, timing analysis and optimization, power grid analysis, and 3D integration. Read More.

Prof. Sara Majetich Prof. Sara Majetich
Carnegie Mellon Univ.

CMU C-SPIN PI, Prof. Sara Majetich Named IEEE Fellow

(12/01/2016) - Sara Majetich, professor of physics at Carnegie Mellon University’s Mellon College of Science, has been named an IEEE Fellow. Fellowship is the highest grade of membership in IEEE, and is considered to be a prestigious honor among the technical community. Majetich is being recognized for her contributions to the understanding of magnetic nanoparticles. She studies the fundamental physics of magnetic nanoparticles that have very uniform sizes and applies her work to the design of functional materials that have applications in data storage media, high-speed electronics and biomedicine. Read More.

Prof. Steve Koester Prof. Steve Koester
Univ. of Minnesota

C-SPIN Associate Director, Prof. Steven Koester Named IEEE Fellow

(11/28/2016) - University of Minnesota Prof. Steven Koester has been named an IEEE Fellow effective January 2017. He is cited by the IEEE for “contributions to group-IV electronic and photonic devices.” Prof. Koester’s research focuses on novel electronic, photonic and sensing device concepts with an emphasis on graphene and other 2D materials. He has authored or co-authored over 200 technical publications, conference presentations, and book chapters, and holds 65 United States patents. Read More.

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