TY - GEN
T1 - Suppression of spin pumping in the presence of thin titanium interlayer
AU - Nakayama, H.
AU - Tashiro, T.
AU - Takahashi, R.
AU - Kajiwara, Y.
AU - Ohtani, T.
AU - Ando, K.
AU - Iguchi, R.
AU - Uchida, K.
AU - Yoshino, T.
AU - Saitoh, E.
PY - 2012
Y1 - 2012
N2 - The inverse spin-Hall effect (ISHE), conversion of spin currents into charge currents, has recently been observed in paramagnetic metal/ferrimagnetic insulator bilayer films by means of the spin pumping. Here we investigate the ISHE induced by the spin pumping on Pt/Ti/Y3Fe5O 12 and Pt/Ti/BiY2Fe5O12 films, where the Y3Fe5O12 (BiY2Fe 5O12) and Pt layers are separated by thin Ti layer. In these systems, we measured electric voltage due to the ISHE in Pt/Ti/Y 3Fe5O12 (BiY2Fe5O 12) systems at room temperature. The experimental results show that the ISHE signal disappears in the Pt/Ti/Y3Fe5O 12 (BiY2Fe5O12) systems. These results indicate that the spin pumping between Y3Fe5O 12 (BiY2Fe5O12) and Ti layer is suppressed. This method enables us to suppress the spin currents without non-magnetic insulators.
AB - The inverse spin-Hall effect (ISHE), conversion of spin currents into charge currents, has recently been observed in paramagnetic metal/ferrimagnetic insulator bilayer films by means of the spin pumping. Here we investigate the ISHE induced by the spin pumping on Pt/Ti/Y3Fe5O 12 and Pt/Ti/BiY2Fe5O12 films, where the Y3Fe5O12 (BiY2Fe 5O12) and Pt layers are separated by thin Ti layer. In these systems, we measured electric voltage due to the ISHE in Pt/Ti/Y 3Fe5O12 (BiY2Fe5O 12) systems at room temperature. The experimental results show that the ISHE signal disappears in the Pt/Ti/Y3Fe5O 12 (BiY2Fe5O12) systems. These results indicate that the spin pumping between Y3Fe5O 12 (BiY2Fe5O12) and Ti layer is suppressed. This method enables us to suppress the spin currents without non-magnetic insulators.
KW - Ferromagnetic resonance
KW - Spin current
KW - Spin pumping
KW - Spin-Hall effect
UR - http://www.scopus.com/inward/record.url?scp=84859720205&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859720205&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.508.347
DO - 10.4028/www.scientific.net/KEM.508.347
M3 - Conference contribution
AN - SCOPUS:84859720205
SN - 9783037853764
T3 - Key Engineering Materials
SP - 347
EP - 352
BT - Materials Integration
PB - Trans Tech Publications Ltd
T2 - Int. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011
Y2 - 1 December 2011 through 2 December 2011
ER -