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Kjetil Magne Dørheim Hals
Professor
Kjetil M. D. Hals received his Ph.D. in physics from the Norwegian University of Science and Technology in 2011. He has been a postdoctoral fellow at the Niels Bohr International Academy in Copenhagen, Denmark, and Johannes Gutenberg Universität Mainz in Germany. Since 2018, he has been a professor at the University of Agder. He works within the theoretical fields of spintronics and spinmechatronics.
Education:
- 2011: NTNU, Ph.D. in theoretical physics. Supervisor: Prof. Dr. Arne Brataas.
- 2007: NTNU, Master of Science in physics (Siv.ing Teknisk Fysikk).
Awards & Fellowships:
- 2019-2023: Young Research Talent Grant, The Research Council of Norway.
- 2014-2016: Niels Bohr Postdoctoral Prize Fellowship, Niels Bohr International Academy, Denmark.
- 2013-2014: Postdoctoral Fellowship in Material Science, Department of Physics, Norwegian University of Science and Technology (NTNU), Norway.
- 2012: ExxonMobil Researcher Prize for the best Ph. D. at NTNU within basic research.
- 2012: Prize for Best Ph.D. degree at the Faculty of Natural Science and Technology, NTNU.
Forskning
Prof. Dr. Hals works within the fields of spintronics and spinmechatronics, where the spin of the electron (and not just the charge) is used to develop novel spin-based devices. Important examples of such devices include magnetic random-access memories, which have revolutionized modern memory technology, as well as quantum computing architectures, high frequency oscillators, spin & charge pumps, nanoscale engines, and reprogrammable magnetic logics that are electrically manipulated by currents. The anticipated application potential of this research is in replacing charge-based electronics with ultra-fast, spin-based, low-power, low-noise devices, which have novel forms of signal transmission.
Undervisning
FYS 121-G Physics – Renewable Energy
FYS 118-G Physics – Civil Engineering
FYS 008-G Preliminary Physics Course for Engineers
Arbeidserfaring
- 2018 – present: Professor at University of Agder, Norway.
- 2017 – 2018: Associate Professor at Western Norway University of Applied Sciences, Norway.
- 2017: Postdoctoral researcher at Johannes Gutenberg Universität Mainz, Germany.
- 2014 – 2016: Niels Bohr Postdoctoral Fellow at the Niels Bohr International Academy, Denmark.
- 2013 – 2013: Postdoctoral Fellow at NTNU, Trondheim, Norway.
- 2011 – 2012: Researcher at Christian Michelsen Research, Bergen, Norway.
Faglige interesser
- Spintronics
- Spinmechatronics
- Superconductor-ferromagnet heterostructures
- Spin transport and dynamics in antiferromagnets
- Topological phenomena in spin systems
Utvalgte publikasjoner
- Chiara Ciccarelli, Kjetil M. D. Hals, Andrew Irvine, Vit Novak, Yaroslav Tserkovnyak,Hidekazu Kurebayashi, Arne Brataas, and Andrew Ferguson, ”Magnonic charge pumping via spin-orbit coupling”, Nature Nanotechnology 10, 50 (2015).
- Arne Brataas and Kjetil M. D. Hals, “Spin-orbit torques in action”, Nature Nanotechnology 9, 86 (2014).
- Kjetil M. D. Hals, Yaroslav Tserkovnyak and Arne Brataas, ”Phenomenology of current-induced dynamics in antiferromagnets”, Physical Review Letters 106, 107206 (2011).
- Kjetil M. D. Hals, Michael Schecter and Mark S. Rudner, “Composite topological excitations in ferromagnet-superconductor heterostructures”, Physical Review Letters 117, 017001 (2016).
- Kjetil M. D. Hals and Karin Everschor-Sitte, ”New Boundary-Driven Twist States in Systems with Broken Spatial Inversion Symmetry ”, Physical Review Letters 119, 127203 (2017).
For a complete overview of the research, please visit the Google Scholar page:
https://scholar.google.com/citations?user=-IK94JYAAAAJ&hl=en
Vitenskapelige publikasjoner
- Hals, Kjetil Magne Dørheim; Everschor-Sitte, Karin (2019). Twists in ferromagnetic monolayers with trigonal prismatic symmetry. Physical Review B. ISSN: 2469-9950. 99 (10). doi:10.1103/PhysRevB.99.104422.
- Mulkers, Jeroen; Hals, Kjetil Magne Dørheim; Leliaert, Jonathan; Milosevic, Milorad V; Van Waeyenberge, Bartel; Everschor-Sitte, Karin (2018). Effect of boundary-induced chirality on magnetic textures in thin films. Physical Review B. ISSN: 2469-9950. 98 (6). doi:10.1103/PhysRevB.98.064429.
- Hals, Kjetil Magne Dørheim; Everschor-Sitte, Karin (2017). New Boundary-Driven Twist States in Systems with Broken Spatial Inversion Symmetry. Physical Review Letters. ISSN: 0031-9007. 119 (127203). doi:10.1103/PhysRevLett.119.127203.
- Ciccarelli, Chiara; Hals, Kjetil Magne Dørheim; Irvine, Andrew; Novak, Vit; Tserkovnyak, Y; Kurebayashi, Hidekazu; Brataas, Arne; Ferguson, Andrew (2015). Magnonic charge pumping via spin-orbit coupling. Nature Nanotechnology. ISSN: 1748-3387. 10s 50 - 54. doi:10.1038/nnano.2014.252.
- Hals, Kjetil Magne Dørheim; Brataas, Arne (2015). Spin-motive forces and current-induced torques in ferromagnets. Physical Review B. Condensed Matter and Materials Physics. ISSN: 1098-0121. 91 (21). doi:10.1103/PhysRevB.91.214401.
- Shulz, Thomek; Alejos, Oscar; Martinez, Eduardo; Hals, Kjetil Magne Dørheim; Garcia, Karin; Vila, Laurent; Lee, Kyujoon; Lo Conte, Roberto; Karnad, Gurucharan V.; Moretti, Simone; Ocker, Berthold; Ravelosona, Dafiné; Brataas, Arne; Kläui, Mathias (2015). Spin-orbit torques for current parallel and perpendicular to a domain wall. Applied Physics Letters. ISSN: 0003-6951. 107 (12). doi:10.1063/1.4931429.
- Yuan, Zhe; Hals, Kjetil Magne Dørheim; Liu, Yi; Starikov, Anton A.; Brataas, Arne; Kelly, Paul K. (2014). Gilbert Damping in Noncollinear Ferromagnets. Physical Review Letters. ISSN: 0031-9007. 113 (26). doi:10.1103/PhysRevLett.113.266603.
- Hals, Kjetil Magne Dørheim; Brataas, Arne (2014). Spin-orbit torques and anisotropic magnetization damping in skyrmion crystals. Physical Review B. Condensed Matter and Materials Physics. ISSN: 1098-0121. 89 (6). doi:10.1103/PhysRevB.89.064426.
- Hals, Kjetil Magne Dørheim; Brataas, Arne (2013). Phenomenology of current-induced spin-orbit torques. Physical Review B. Condensed Matter and Materials Physics. ISSN: 1098-0121. 88 (8). doi:10.1103/PhysRevB.88.085423.
- Hals, Kjetil Magne Dørheim; Brataas, Arne (2013). Spin-transfer torques in helimagnets. Physical Review B. Condensed Matter and Materials Physics. ISSN: 1098-0121. 87 (17:174409). doi:10.1103/PhysRevB.87.174409.
- Hals, Kjetil Magne Dørheim; Berre, Inga (2013). Thermal fracturing of geothermal wells and effects of borehole orientation. Proceedings of the 38th Workshop on Geothermal Reservoir Engineering 2013. ISBN: 9781627485708. Curran Associates, Inc.. Enhanced Geothermal Systems.
- Hals, Kjetil Magne Dørheim; Berre, Inga (2012). Interaction between injection points during hydraulic fracturing. Water Resources Research. ISSN: 0043-1397. 48doi:10.1029/2012WR012265.
- Hals, Kjetil Magne Dørheim; Brataas, Arne (2011). Magnetization dissipation in the ferromagnetic semiconductor (Ga,Mn)As. Physical Review B. Condensed Matter and Materials Physics. ISSN: 1098-0121. 84 (10). doi:10.1103/PhysRevB.84.104404.
- Hals, Kjetil Magne Dørheim; Tserkovnyak, Yaroslav; Brataas, Arne (2011). Phenomenology of Current-Induced Dynamics in Antiferromagnets. Physical Review Letters. ISSN: 0031-9007. 106 (10). doi:10.1103/PhysRevLett.106.107206.
- Hals, Kjetil Magne Dørheim; Nguyen, Kiet Anh; Waintal, Xavier; Brataas, Arne (2010). Effective Magnetic Monopoles and Universal Conductance Fluctuations. Physical Review Letters. ISSN: 0031-9007. 105 (20). doi:10.1103/PhysRevLett.105.207204.
- Hals, Kjetil Magne Dørheim; Brataas, Arne; Tserkovnyak, Y (2010). Scattering theory of charge-current-induced magnetization dynamics. Europhysics letters. ISSN: 0295-5075. 90 (4). doi:10.1209/0295-5075/90/47002.
- Hals, Kjetil Magne Dørheim; Brataas, Arne; Bauer, Gerrit E. W. (2010). Thermopower and thermally induced domain wall motion in (Ga, Mn)As. Solid State Communications. ISSN: 0038-1098. 150 (11-12). s 461 - 465. doi:10.1016/j.ssc.2010.01.023.
- Hals, Kjetil Magne Dørheim; Nguyen, Kiet Anh; Brataas, Arne (2009). Intrinsic Coupling between Current and Domain Wall Motion in (Ga,Mn)As. Physical Review Letters. ISSN: 0031-9007. 102 (25). doi:10.1103/PhysRevLett.102.256601.
- Hals, Kjetil Magne Dørheim (2018). s Composite topological excitations in superconductor-ferromagnet heterostructures.
- Hals, Kjetil Magne Dørheim (2018). Composite Topological Excitations in Ferromagnet-Superconductor Heterostructures.
Ekspertområder
Sist endret: 25.07.2019 13:07