News
TANMS Graduate Student, Zhi (Jackie) Yao, advised by Professor Ethan Wang, Placed First in Best Student Paper Competition at 2017 IEEE International Microwave Symposium
 TANMS graduate student, Jackie Yao's research is focused on the development of 3D multiferroic antenna modeling capability that incorporates full interactions between elastodunamics, micromagnetics and electromagnetics. The TANMS 3D antenna modeling is a rigorous yet computationally efficient, and capable of modeling the complex magnetoelastic anisotropies, dispersive, and/or nonlinear behavior accurately. The numerical modeling tool provides guidelines and theoretical support to the multiferroic antenna design which is progressing along well within the center. [The following is the title/abstract of the paper that was presented at the 2017 IEEE conference] TITLE: "3D Unconditionally Stable FDTD Modeling of Micromagnetics and Electrodynamics" ABSTRACT: A rigorous yet computationally efficient three-dimensional numerical
method has been proposed based on modified
alternating-direction-implicit (ADI) finite difference time domain
methods (FDTD) and it has the capability of modeling the eccentric
property of magnetic material being anisotropic, dispersive or
nonlinear. The proposed algorithm solves Maxwell’s equations and LLG
equations simultaneously, requiring only tridiagonal matrix inversion as
in ADI FDTD. The accuracy of the modeling has been validated by the
simulated dispersive permeability of a continuous ferrite film with a
1.5 mm-thickness, using a time-step size 104times
larger than the Courant limit. The permeability agrees with the
theoretical prediction and magneto-static spin wave modes are observed.
Moreover, electric current sheet radiators close to perfect electrical
conductors loaded with 2 mm-thick ferrite films are simulated, which
exhibit a radiation efficiency boost-up due to elimination of platform
effect. |
TANMS Successfully Pilots New High School Outreach Program and Welcomes Lawndale High School as a New Precollege Partner
 Ms. Genota came to TANMS as a participant of our 2016 Research Experience for Teachers (RET) program with high recommendations from Lawndale High School principal, Paula Rodas, and UCLA MESA/CEED Director, Rick Ainsworth. Widely recognized for her outstanding and dedicated teaching, Ms. Genota is a recipient of numerous awards including Teacher of the Year from Inglewood Unified School District in 2016, MESA Advisor of the Year for the State of California in 2007, and the Certificated Employee of the Year from Lawndale High School in 2017. As TANMS Deputy Director, Professor Jane Chang, so well indicated, “TANMS is truly fortunate to have Ms. Genota whose dedicated effort makes it possible to broaden the impact of our ERC.”
The four-day pilot implementation at Lawndale High School
culminated with a closing ceremony where all of the students who participated
gathered to be recognized for their contribution to the new TANMS effort. Members of the TANMS leadership team also
provided inspirational talks that invited the students to explore their
potentials as future engineers. We are extremely excited to witness the success of the Lawndale High School pilot. In just a few weeks on June 22-24, TANMS will be hosting the first TANMS Summer Teacher Institute at UCLA. In partnership with UCLA Center forExcellence in Engineering Diversity, UCLA MESA, and UCLA Science Project, TANMS will introduce the new TANMS Electromagnetism and Nanoscale Motor Module along with NGSS and Common Core strategies to a group of MESA teachers from the Los Angeles region. Together, we aim to broaden our impact in encouraging the pursuit of STEM from high school and beyond.
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The TANMS Electromagnetism and Nanoscale Motor Modules were
developed to align with the Next Generation Science Standards (NGSS) while
incorporating fundamental concepts from core TANMS research involving
multiferroics and nanoscale motors. Over two class periods, students engage in interactive lectures and hands-on activities as they investigate
the world electromagnetism and explore multiferroic science and nanomotors. 
TANMS Researcher Appointed as Associate Professor at Northwestern University
 Dr. Khalili has been a valued member of TANMS since the center's inception in 2012, working closely with Professor Kang Wang to lead the 1D Thrust and Memory Testbed development. He has been with the UCLA Department of Electrical Engineering since 2009 where he advanced from a postdoctoral scholar (2009-2010), to a research associate (2010-2013), and to the current position as Adjunct Assistant Professor (since 2013). He
previously served as project manager at UCLA for two DARPA
multi-institution programs (2009-2014), focusing on spin-transfer-torque
magnetic random access memory (STT-RAM) and non-volatile logic (NVL),
working with several university and industry partners. Since 2012, he has also served as co-founder and chief technology officer of Inston Inc.,
a startup company pioneering voltage-controlled MRAM. In this role, he
led the development of Inston's IP portfolio of 20+ patents, and
established and led joint projects with major industry players. Dr. Khalili received the B.Sc. degree from Sharif University of Technology in 2004, and the Ph.D. degree (with distinction) from Delft University of Technology (TU Delft), The Netherlands, in 2008, both in electrical engineering. His professional activities have included serving as a guest editor for Spin, and serving on the technical program committee of the Joint MMM/Intermag Conference. Dr. Khalili's presence in TANMS will be sorely missed. We wish him the best success in his new position at Northwestern and look forward to opportunities to collaborate with him in the future. |
TANMS to Welcome Two TANMS Doctoral Fellowship Recipients
 Of the four TANMS Doctoral Fellowship awards that were offered this year, TANMS is excited and proud to
announce that two incoming doctoral students, Adrian Acosta and
Michael Guevara de
Jesus, have accepted the awards and will be joining the TANMS research team in
fall 2017. The
TANMS Doctoral Fellowship was established to encourage students
from
underrepresented groups to pursue a doctoral degree in
Engineering with a focus
on TANMS research to advance diversity
and innovation
in the field. Graduating from the Interamerican University of
Puerto Rico with
a degree in Mechanical Engineering, Michael Guevara de Jesus is not new to the
TANMS family. Michael first joined the TANMS family in summer 2014 as a participant of the Research Experience for Undergraduates (REU) program under the late Professor Ephraphim Garcia at Cornell University. He returned to TANMS for a second summer of REU in 2016 under Professor Abdon Sepulveda at UCLA. Michael will conduct his doctoral research under the supervision of Professor Christopher Lynch in UCLA Department of Mechanical and Aerospace Engineering. Adrian Acosta comes to TANMS with the highest recommendations from the University of Arizona with a degree in Chemical Engineering. He will be joining the TANMS team under Professor Jane Chang in UCLA Chemical and Biomolecular Engineering. We are fortunate to have them both on board and offer our most hearty Congratulations and Welcome! |
TANMS Doctoral Student Receives Tenure-Track Faculty Appointment
 TANMS is very proud to announce
that one of our doctor students, John Domann, was offered a tenure-track
faculty position at Virginia Tech. John
will serve as an Assistant Professor in the Biomedical Engineering and
Mechanics (BEAM) Department at Virginia Tech starting in the next academic year.
John is currently finishing his Ph.D. in the Active Materials Laboratory under
Professor Greg Carman with UCLA Mechanical and Aerospace Engineering. John
received his bachelor’s and master’s degress from the University of Kansas,
where he was named a Fellow with the Institute for Advancing Medical Innovation
and co-invented a piezoelectric spinal fusion implant that recently finished a
successful animal trial and has been licensed by a startup company.John’s doctoral work at UCLA broadly focused on the dynamics of magnetoelastic materials across numerous size and time scales. He worked with AFRL researchers from Eglin Air Force Base to conduct experimental studies on the impact and shock response of Galfenol, a magnetoelastic material. This work included analysis of Galfenol’s use in pulsed power generation devices, as well as the first analytic model of a strain-powered antenna. John’s recent work with TANMS focused on the strain mediated control of nanoscale magnetism. The goal of this work is to create novel devices with multiple orders of magnitude energy efficiency improvements of current state of the art electronics. He collaborated with numerous TANMS researchers to explore the magnetoelastic control of the quantum mechanical exchange bias effect, energy efficient magnetic logic devices, novel antenna designs, and micron scale magnetic motors. In addition to his research, John made significant contributions to the TANMS Education programs by serving as a graduate mentor and by participating in the development of teaching modules that introduced high school and undergraduate students to multiferroic materials and devices. John looks forward to continuing his research on multiferroic devices and exploring their applications in the biomedical field at Virginia Tech. |
2017 Annual Review Site Visit
TANMS Annual Review
NSF Site Visit
May 2-3, 2017 - UCLA Luskin Conference Center
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Spring 2017 IAB Meeting
 TANMS Industrial Advisory Board Meeting
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TANMS Industry Member Inston Inc. Receives NSF Small Business/ERC Collaboration Opportunity Award
 We are happy to announce that one of our Industrial Affiliates members, Inston Inc., was recently (February 2017) awarded a NSF SECO grant. TANMS collaborated with INSTON to submit a SECO (Small-Business/ ERC Collaborative Opportunity) Supplemental Funding Opportunity available to current NSF SBIR Phase 2 awardees that collaborate with current NSF ERCs. Award details and abstract is available at https://www.nsf.gov/awardsearch/showAward?AWD_ID=1430815&HistoricalAwards=false . Working with TANMS under this SECO supplement, Inston plans to achieve ambitious memory device metrics that go beyond those originally outlined in its Phase II program, to support its technical roadmap for the 20 nm CMOS technology node and beyond. Inston plans to achieve this by leveraging the joint expertise at Inston and TANMS. In particular, the expertise and facilities available within TANMS with respect to strain engineering of nanomagnetic devices – both modeling and experimental – will significantly accelerate Inston’s progress to achieve this technology milestone. This partnership will make MeRAM devices compatible with CMOS 20 nm and below nodes without the need for high-voltage transistors or charge pumping, hence achieving higher-density memory arrays. Based on Inston’s interactions with customers and semiconductor foundries, it sees a large opportunity at these technology nodes for MeRAM to replace high-performance embedded SRAM. In particular, while recent public announcements from foundries (Samsung and Global Foundries) have confirmed that magnetic memory will be available within two years at the 28 nm node, there is a pressing need to develop solutions for the 20 nm node and below, as well as to achieve higher speed to replace SRAM (currently not possible with spin torque MRAM, which is too slow compared to SRAM Cache memories). This is driven by the scaling challenges of current-controlled spin-torque MRAM to achieve competitive performance at 20 nm and below nodes, where our voltage-controlled MeRAM offers a clear performance-density advantage. We are looking forward to collaborating with Inston Inc on this exciting NSF SECO! |
2017 IEEE Magnetics Society Distinguished Lecture
 "Ultrafast and Very Small: Discover Nanoscale Magnetism With Picosecond Time Resolution Using X-Rays" by Hendrik Ohldag, 2017 Distinguished Lecturer/SLAC February 24, 2017 | 10:00am-11:00am PST TANMS Conference Room | WebEx http://tanms.webex.com (Meeting Password: TANMS) ABSTRACT: Today’s magnetic device technology is based on complex magnetic alloys or multilayers that are patterned at the nanoscale and operate at gigahertz frequencies. To better understand the behavior of such devices one needs an experimental approach that is capable of detecting magnetization with nanometer and picosecond sensitivity. In addition, since devices contain different magnetic elements, a technique is needed that provides element-specific information about not only ferromagnetic but antiferromagnetic materials as well. Synchrotron based X-ray microscopy provides exactly these capabilities because a synchrotron produces tunable and fully polarized X-rays with energies between several tens of electron volts up to tens of kiloelectron volts. The interaction of tunable X-rays with matter is element-specific, allowing us to separately address different elements in a device. The polarization dependence or dichroism of the X-ray interaction provides a path to measure a ferromagnetic moment and its orientation or determine the orientation of the spin axis in an antiferromagnet. The wavelength of X-rays is on the order of nanometers, which enables microscopy with nanometer spatial resolution. And finally, a synchrotron is a pulsed X-ray source, with a pulse length of tens of picoseconds, which enables us to study magnetization dynamics with a time resolution given by the X-ray pulse length in a pump-probe fashion. The goal of this talk is to present an introduction to the field and explain the capabilities of synchrotron based X-ray microscopy, which is becoming a tool available at every synchrotron, to a diverse audience. The general introduction will be followed by a set of examples, depending on the audience, that may include properties of magnetic materials in rocks and meteorites, magnetic inclusions in magnetic oxides, interfacial magnetism in magnetic multilayers, and dynamics of nanostructured devices due to field and current pulses and microwave excitations. BIOGRAPHY: Hendrik Ohldag received the Ph.D. in experimental physics from the Universität Düsseldorf, Germany, in 2002. He joined the Stanford Synchrotron Radiation Light Source (SSRL) in 1999 as a research assistant as part of his Ph.D. research. After a postdoctoral fellowship at SSRL he became a permanent member of the research staff in 2005. Between 1999 and 2002 he was a visiting researcher at the Advanced Light Source (ALS) at Berkeley National Laboratory. Since 2014 he is a visiting researcher at New York University. Dr. Ohldag was awarded the David. A Shirley Award at the ALS in 2006 for “outstanding contribution in using photoemission electron microscopy for the study of magnetic materials.” He is a member of the IEEE Magnetics Society and the chair of the Magnetic Interfaces and Nanoscale Device Division of the American Vacuum Society. He has authored or co-authored over 50 peer-reviewed papers and book chapters which have been cited over 2500 times. He has participated in the organization of 25 international conferences and workshops. His research focuses on the use of X-ray microscopy to study the dynamic and static properties of complex magnetic materials. |
TANMS Postgraduate Career Development Seminar Series
David Blancha, STEM Manager of Graduate Student Services at UCLA Career Center provides a three part seminar series to help TANMS graduate students prepare for their career search.
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