Charge and thermal transport in lateral non-local spin devices
Abstract
Long-distance spin transmission is essential for spintronic devices. The spin transmission properties are often examined using lateral non-local spin devices. In this work, with the hope of a long-distance spin superfluid transmission, we devise a non-local spin device platform employing single-crystalline NiO films and the spin–orbit precession effect. We scrutinize the non-local voltage signals with possible contributions of spin transport, thermal transport, charge current leakage, and the Joule heating in mind. It is found that the non-local voltage signals in our device are dominated by non-spin contributions raised by a combination of the Joule heating and the charge current leakage, making extraction of spin signal challenging. Our findings are broadly relevant as the Joule heating is usually inevitable when a sufficient amount of spin current should be generated in such spin devices.
Article Details
Journal Info
Journal of Applied Physics
American Institute of Physics
Authors (11)
I. Sugiura
Institute for Chemical Research, Kyoto University 1 , Uji, Kyoto 611-0011,
X. Fan
Y. Kobayashi
Institute for Chemical Research, Kyoto University 1 , Uji, Kyoto 611-0011,
Y. Shiota
Institute for Chemical Research, Kyoto University 1 , Uji, Kyoto 611-0011,
R. Hisatomi
Institute for Chemical Research, Kyoto University 1 , Uji, Kyoto 611-0011,
S. Karube
Institute for Chemical Research, Kyoto University 1 , Uji, Kyoto 611-0011,
T. Ono
Institute for Chemical Research, Kyoto University 1 , Uji, Kyoto 611-0011,
Y. Tserkovnyak
Department of Physics and Astronomy, University of California 4 , Los Angeles, California 90095,
M. Khonkhodzhaev
Department of Physics, Queens College of the City University of New York 5 , Queens, New York 11367,
S. Takei
Department of Physics, Queens College of the City University of New York 5 , Queens, New York 11367,
T. Moriyama
Institute for Chemical Research, Kyoto University 1 , Uji, Kyoto 611-0011,