U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications by:

Search Title, Abstract, Conference, Citation, Keyword or Author
Displaying 26 - 33 of 33

Dysprosium Iron Garnet Thin Films with Perpendicular Magnetic Anisotropy on Silicon

January 1, 2020
Author(s)
Jackson J. Bauer, Ethan R. Rosenberg, Subhajit Kundu, K. Andre Mkhoyan, Patrick Quarterman, Alexander Grutter, Brian Kirby, Julie Borchers, Caroline A. Ross
Magnetic insulators, such as the rare-earth iron garnets, are promising materials for energy-efficient spintronic memory and logic devices, and their anisotropy, magnetization and other properties can be tuned over a wide range through selection of the

NonVolatile Ionic Modification of the Dzyaloshinskii-Moriya Interaction

September 4, 2019
Author(s)
L. Herrera Diez, Y. T. Liu, Dustin A. Gilbert, M. Belmeguenai, J. Vogel, S. Pizzini, E. Martinez, A. Lamperti, J. B. Mohammedi, A. Laborieux, Y. Roussigne, Alexander Grutter, E. Arenholtz, Patrick Quarterman, Brian B. Maranville, S. Ono, M. Salah El Hadri, R. Tolley, E. E. Fullerton, L. Sanchez-Tejerina, A. Stashkevich, S. M. Cherif, A. D. Kent, D. Querlioz, J. Langer, B. Ocker, D. Ravelosona
The possibility to tune the Dzyaloshinskii Moriya interaction (DMI) by electric (E) field gating in ultra-thin magnetic materials has opened new perspectives in terms of controlling the stabilization of chiral spin structures. Most recent efforts have used

Spin Scattering and Noncollinear Spin Structure-Induced Intrinsic Anomalous Hall Effect in Antiferromagnetic Topological Insulator MnBi 2 Te 4

August 19, 2019
Author(s)
Seng Huat Lee, Yanglin Zhu, Yu Wang, Leixin Miao, Timothy Pillsbury, Hemian Yi, Susan Kempinger, Jin Hu, Colin A. Heikes, Patrick Quarterman, William D. Ratcliff, Julie Borchers, Heda Zhang, Xianglin Ke, David Graf, Nasim Alem, Cui-Zu Chang, Nitin Samarth, Zhiqiang Mao
MnBi 2Te 4 has recently been established as an intrinsic antiferromagnetic (AFM) topological insulator - an ideal platform to create quantum anomalous Hall (QAH) insulator and axion insulator states. We performed comprehensive studies on the structure

Effects of Field Annealing on MnN/CoFeB Exchange Bias Systems

June 24, 2019
Author(s)
Patrick A Quarterman, I. Hallsteinsen, M. Dunz, M. Meinert, E. Arenholz, Julie A. Borchers, Alexander J. Grutter
We report the effects of nitrogen diffusion on exchange bias in MnN/CoFeB heterostructures as a function of MnN thickness and field annealing temperature. We find that competing effects occur in which high-temperature annealing enhances exchange bias in