Zobrazeno 1 - 10
of 480
pro vyhledávání: '"HEINONEN, O. P."'
We have studied the temperature and magnetic field dependence of the total magnetic moment of large-area permalloy artificial square spin ice arrays. The temperature dependence and hysteresis behavior are consistent with the coherent magnetization re
Externí odkaz:
http://arxiv.org/abs/2206.14147
The transition-metal intercalated dichalcogenide CoNb$_3$S$_6$ is a triangular antiferromagnet that has recently been shown to exhibit a large anomalous Hall effect (AHE) below the N\'eel temperature, even though the response to an external field is
Externí odkaz:
http://arxiv.org/abs/2109.13837
Autor:
Bac, S. -K., Koller, K., Lux, F., Wang, J., Riney, L., Borisiak, K., Powers, W., Zhukovskyi, M., Orlova, T., Dobrowolska, M., Furdyna, J. K., Dilley, N. R., Rokhinson, L. P., Mokrousov, Y., McQueeney, R. J., Heinonen, O., Liu, X., Assaf, B. A.
Publikováno v:
npj Quantum Materials 7 46 (2022)
Three-dimensional (3D) compensated MnBi2Te4 is antiferromagnetic, but undergoes a spin-flop transition at intermediate fields, resulting in a canted phase before saturation. In this work, we experimentally show that the anomalous Hall effect (AHE) in
Externí odkaz:
http://arxiv.org/abs/2103.15801
Publikováno v:
Phys. Rev. Materials 5, 064201 (2021)
MnBi$_2$Te$_4$ (MBT) is a promising antiferromagnetic topological insulator whose films provide access to novel and technologically important topological phases, including quantum anomalous Hall states and axion insulators. MBT device behavior is exp
Externí odkaz:
http://arxiv.org/abs/2102.11405
Autor:
Park, J., Mangeri, J., Zhang, Q., Yusuf, M. H., Pateras, A., Dawber, M., Holt, M. V., Heinonen, O. G., Nakhmanson, S., Evans, P. G.
Publikováno v:
Nanoscale 10, 3262 (2018)
The ferroelectric domain pattern within lithographically defined PbTiO3/SrTiO3 ferroelectric/dielectric heteroepitaxial superlattice nanostructures is strongly influenced by the edges of the structures. Synchrotron x-ray nanobeam diffraction reveals
Externí odkaz:
http://arxiv.org/abs/2002.11073
Autor:
Tikhonov, Yu., Kondovych, S., Mangeri, J., Pavlenko, M., Baudry, L., Sené, A., Galda, A., Nakhmanson, S., Heinonen, O., Razumnaya, A., Luk'yanchuk, I., Vinokur, V. M.
Chirality, an intrinsic handedness, is one of the most intriguing fundamental phenomena in nature. Materials composed of chiral molecules find broad applications in areas ranging from nonlinear optics and spintronics to biology and pharmaceuticals. H
Externí odkaz:
http://arxiv.org/abs/2001.01790
Publikováno v:
Appl. Phys. Lett. 111, 242405 (2017)
Nanoscale magnetic skyrmions have interesting static and transport properties that make them candidates for future spintronic devices. Control and manipulation of the size and behavior of skyrmions is thus of crucial importance. Using a Ginzburg-Land
Externí odkaz:
http://arxiv.org/abs/1710.00048
Publikováno v:
Computational Materials Science 126 (2017) 139-151
We present the first set of benchmark problems for phase field models that are being developed by the Center for Hierarchical Materials Design (CHiMaD) and the National Institute of Standards and Technology (NIST). While many scientific research area
Externí odkaz:
http://arxiv.org/abs/1610.00622
Reversible resistive switching between high-resistance and low-resistance states in metal-oxide-metal heterostructures makes them very interesting for applications in random access memories. While recent experimental work has shown that inserting a m
Externí odkaz:
http://arxiv.org/abs/1602.06793
Autor:
Jungfleisch, M. B., Zhang, W., Iacocca, E., Sklenar, J., Ding, J., Jiang, W., Zhang, S., Pearson, J. E., Novosad, V., Ketterson, J. B., Heinonen, O., Hoffmann, A.
Publikováno v:
Phys. Rev. B 93, 100401(R) (2016)
Magnetization dynamics in an artificial square spin-ice lattice made of Ni80Fe20 with magnetic field applied in the lattice plane is investigated by broadband ferromagnetic resonance spectroscopy. The experimentally observed dispersion shows a rich s
Externí odkaz:
http://arxiv.org/abs/1601.01219