Sara A. Majetich | |
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Alma mater | Princeton University Columbia University University of Georgia |
Scientific career | |
Institutions | Carnegie Mellon University |
Thesis | Phonon dynamics in alexandrite and ruby (1987) |
Sara A. Majetich is an American physicist and Professor of Physics at Carnegie Mellon University. Her work considers magnetic nanoparticles and nanostructures for application in spintronic devices. She is a Fellow of the American Physical Society and the Institute of Electrical and Electronics Engineers.
Majetich started her scientific career at Princeton University where she majored in chemistry. After graduating she moved to Columbia University, where she worked toward a master's degree in physical chemistry. [1] Majetich was a doctoral student at the University of Georgia, where she studied phonon dynamics in ruby. [2] After earning her doctorate Majetich moved to Cornell University, where she worked as postdoctoral research associate. In 1992 she was awarded an National Science Foundation National Young Investigator Award. [3]
In 1995 Majetich joined the faculty at Carnegie Mellon University. She was promoted to Professor of Physics in 1998. Majetich studies magnetic nanoparticles for magnetic imaging and magnetic data storage. These nanoparticles have very uniform sizes (i.e. they are monodisperse), which means that they can form arrays. [3] She made use of magnetic transmission electron microscopy (Lorentz microscopy) [4] to study the collective behaviour of magnetic nanoparticles, and showed that structural disorder disrupts self-assembly into ordered domains and can result in spin-glass dynamics. [5] As nanoparticles assembly into ordered arrays various phase transitions can be expected, such as superparamagnetic to ferromagnetic and insulator to metal. [3] [6]
To this end, she developed a nano-masking process which allows for the transfer of patterns into multi-layer magnetic films. [7] This process involves argon-ion milling to transfer the pattern of metal oxide nanoparticles into oriented, multi-layer thin films and magnetic tunnel junctions. [8]
Majetich pioneered the use of conductive atomic force microscopy to measure magnetoresistance. [9]
The Dickson Prize in Medicine and the Dickson Prize in Science were both established in 1969 by Joseph Z. Dickson and Agnes Fischer Dickson.
Manuela Maria Veloso is the Head of J.P. Morgan AI Research & Herbert A. Simon University Professor Emeritus in the School of Computer Science at Carnegie Mellon University, where she was previously Head of the Machine Learning Department. She served as president of Association for the Advancement of Artificial Intelligence (AAAI) until 2014, and the co-founder and a Past President of the RoboCup Federation. She is a fellow of AAAI, Institute of Electrical and Electronics Engineers (IEEE), American Association for the Advancement of Science (AAAS), and Association for Computing Machinery (ACM). She is an international expert in artificial intelligence and robotics.
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Geraldine Lee Richmond is an American chemist and physical chemist who is serving as the Under Secretary of Energy for Science in the US Department of Energy. Richmond was confirmed to her DOE role by the United States Senate on November 5, 2021. Richmond is the Presidential Chair in Science and professor of chemistry at the University of Oregon (UO). She conducts fundamental research to understand the chemistry and physics of complex surfaces and interfaces. These understandings are most relevant to energy production, atmospheric chemistry and remediation of the environment. Throughout her career she has worked to increase the number and success of women scientists in the U.S. and in many developing countries in Africa, Asia and South America. Richmond has served as president of the American Association for the Advancement of Science, and she received the 2013 National Medal of Science.
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The Ray and Stephanie Lane Computational Biology Department (CBD) is one of the seven departments within the School of Computer Science at Carnegie Mellon University in Pittsburgh, Pennsylvania, United States. Now situated in the Gates-Hillman Center, CBD was established in 2007 as the Lane Center for Computational Biology by founding department head Robert F. Murphy. The establishment was supported by funding from Raymond J. Lane and Stephanie Lane, CBD officially became a department within the School of Computer Science in 2009. In November 2023, Carnegie Mellon named the department as the Ray and Stephanie Lane Computational Biology Department, in recognition of the Lanes' significant investment in computational biology at CMU.
Rachel Mandelbaum is a professor of astrophysics at Carnegie Mellon University, studying cosmology and galactic evolution with a focus on dark matter and dark energy. Much of her work has used the phenomenon of gravitational lensing of galaxies and she has made significant improvements in the calibration of lensing parameters.
Jessica K. Hodgins is an American roboticist and researcher who is a professor at Carnegie Mellon's Robotics Institute and School of Computer Science. Hodgins is currently also Research Director at the Facebook AI Research lab in Pittsburgh next to Carnegie Mellon. She was elected the president of ACM SIGGRAPH in 2017. Until 2016, she was Vice President of Research at Disney Research and was the Director of the Disney Research labs in Pittsburgh and Los Angeles.
Frederick Joseph Gilman is an American physicist and the Buhl Professor of Theoretical Physics Emeritus at Carnegie Mellon University.
Jill Millstone is a professor of chemistry at the University of Pittsburgh. She works on metal-ligand chemistry in nanoparticle synthesis. She is the American Chemical Society Kavli Foundation Emerging Leader in Chemistry Lecturer for 2018.
Nguyễn Thị Kim Thanh is a professor of Nanomaterials at University College London. She was awarded the 2019 Royal Society Rosalind Franklin Award for her research and efforts toward gender equality.
Lisa Marie Spellman Porter is an American materials scientist who is a Professor of Materials Science at Carnegie Mellon University. She works on new ways to process and characterise electronic materials. She has previously served as president of the American Vacuum Society.
Tina Kahniashvili is a Georgian physicist and researcher. She studies theoretical cosmology, gravitational waves, theoretical astrophysics, and dark energy. She is a professor of physics and astronomy at Ilia State University, an associate research professor at Carnegie Mellon University, and is the main scientist at Abastumani Astrophysical Observatory.
Maria-Florina (Nina) Balcan is a Romanian-American computer scientist whose research investigates machine learning, algorithmic game theory, theoretical computer science, including active learning, kernel methods, random-sampling mechanisms and envy-free pricing. She is an associate professor of computer science at Carnegie Mellon University.
Stephanie Lee Brock is an American chemist who is professor of inorganic chemistry at Wayne State University. Her research considers transition metal pnictides and chalcogenide nanomaterials. She is a Fellow of the American Association for the Advancement of Science and the American Chemical Society.
Paulina Jaramillo is a Colombian-American engineer who is Professor of Engineering and Public Policy at Carnegie Mellon University (CMU). She serves as Director of the Green Design Institute. Her research focuses on energy system sustainability and climate change. She was selected as an Andrew Carnegie Fellow in 2020.
Scott Dodelson is an American physicist. He is a professor of physics at Carnegie Mellon University and chair of its physics department.
Kathryn Ann Whitehead is an American chemical engineer who is a professor at Carnegie Mellon University. Her research considers the development of nanomaterial-based drug delivery systems for gene therapy, oral macromolecular delivery systems, and maternal and infant therapeutics. She is an elected Fellow of the American Institute for Medical and Biological Engineering in 2021 and Fellow of the Controlled Release Society.
Elizabeth Carol Dickey is an American materials scientist, Head of department and the Teddy and Wilton Hawkins Distinguished Professor at Carnegie Mellon University. Her research considers structure-property relationships for materials with grain boundaries and interfaces. She is a Fellow of the American Association for the Advancement of Science, the American Ceramic Society and the Microscopy Society of America.