Turn‐On of Current‐Induced Spin Torque Upon Non‐collinear Antiferromagnetic Ordering in Delafossite PdCrO <sub>2</sub>
Abstract
Abstract Measurements of the current‐induced spin torque produced by the delafossite antiferromagnet PdCrO 2 and acting on an adjacent ferromagnetic permalloy layer are reported. The spin torque increases strongly as the temperature is reduced through the Néel temperature, when the PdCrO 2 transitions from a paramagnetic phase to a non‐collinear antiferromagnetic state. This result is qualitatively consistent with density functional theory calculations regarding how spin‐current generation changes upon antiferromagnetic ordering in PdCrO 2 .
Article Details
Authors (13)
Xiaoxi Huang
Qi Song
Department of Physics, Harvard University, Cambridge, MA, USA.
Gautam Gurung
Trinity College University of Oxford Oxford OX1 3BH UK
Daniel A. Pharis
Department of Physics Cornell University Ithaca NY 14853 USA
Thow Min Jerald Cham
Department of Physics Cornell University Ithaca NY 14853 USA
YuLan Chen
Rakshit Jain
Maciej Olszewski
Yufan Feng
Amal El‐Ghazaly
Electrical and Computer Engineering Cornell University Ithaca NY 14853 USA
Evgeny Y. Tsymbal
Darrell G. Schlom
Department of Materials Science and Engineering
Daniel C. Ralph