東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Tuning the Damping of Spin Wave Mode...

Duan, Zheng.

Linked to FindBook

Google Book

Amazon

博客來

Tuning the Damping of Spin Wave Modes by Spin Hall Current in Permalloy/Platinum Wires.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Tuning the Damping of Spin Wave Modes by Spin Hall Current in Permalloy/Platinum Wires./
Author:	Duan, Zheng.
Description:	141 p.
Notes:	Source: Dissertation Abstracts International, Volume: 74-07(E), Section: B.
Contained By:	Dissertation Abstracts International74-07B(E).
Subject:	Nanoscience. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3557190
ISBN:	9781303000942

Tuning the Damping of Spin Wave Modes by Spin Hall Current in Permalloy/Platinum Wires.
Duan, Zheng.

Tuning the Damping of Spin Wave Modes by Spin Hall Current in Permalloy/Platinum Wires. - 141 p.

Source: Dissertation Abstracts International, Volume: 74-07(E), Section: B.

Thesis (Ph.D.)--University of California, Irvine, 2013.

A spin current in solids is the flow of electron spin angular momentum without electric charge flow in the same direction. Since its theoretical prediction, tremendous efforts were put into realizing it in bulk materials and heterostructures. The spin can apply a spin transfer torque to magnetization of a magnetic material without any charge current flowing through this material and thus can be used for manipulation of magnetization of both magnetic conductors and insulators. The recent discovery of spin Hall effect (SHE) has drawn significant attention because it not only provides simple method for generation of pure spin currents in spin-orbit materials.

ISBN: 9781303000942Subjects--Topical Terms:

587832
Nanoscience.

Tuning the Damping of Spin Wave Modes by Spin Hall Current in Permalloy/Platinum Wires.
LDR:02541nam 2200313 4500 001 1957169
005 20131112081708.5
008 150210s2013 ||||||||||||||||| ||eng d
020 $a 9781303000942
035 $a (UMI)AAI3557190
035 $a AAI3557190
040 $a UMI $c UMI
100 1 $a Duan, Zheng. $3 2092003
245 1 0 $a Tuning the Damping of Spin Wave Modes by Spin Hall Current in Permalloy/Platinum Wires.
300 $a 141 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-07(E), Section: B.
500 $a Adviser: Ilya Krivorotov.
502 $a Thesis (Ph.D.)--University of California, Irvine, 2013.
520 $a A spin current in solids is the flow of electron spin angular momentum without electric charge flow in the same direction. Since its theoretical prediction, tremendous efforts were put into realizing it in bulk materials and heterostructures. The spin can apply a spin transfer torque to magnetization of a magnetic material without any charge current flowing through this material and thus can be used for manipulation of magnetization of both magnetic conductors and insulators. The recent discovery of spin Hall effect (SHE) has drawn significant attention because it not only provides simple method for generation of pure spin currents in spin-orbit materials.
520 $a In this dissertation, measurements of the spectral properties of bulk and edge spin wave modes in Permalloy/ Platinum (Py/Pt) bilayer wires in the presence of high current densities are reported. The charge current in the Pt layer (spin-orbit material) induces a pure spin current via SHE that flows from Pt into Py, applies a spin torque, and tunes its magnetization dynamics. We find that the damping parameters of all spin wave modes in the Py wire can be reduced by the spin torque arising from the spin Hall current in Pt. However, the damping reduction is strongest for the quasi-uniform mode and weakest for the edge mode. Our work demonstrates that the spin Hall torque does not uniformly affect all spin wave modes and reveals the importance of extrinsic contributions to the spin wave damping for manipulation of the magnetization by spin Hall current.
590 $a School code: 0030.
650 4 $a Nanoscience. $3 587832
650 4 $a Physics, General. $3 1018488
690 $a 0565
690 $a 0605
710 2 $a University of California, Irvine. $b Physics - Ph.D. $3 1672409
773 0 $t Dissertation Abstracts International $g 74-07B(E).
790 1 0 $a Krivorotov, Ilya, $e advisor
790 1 0 $a Ho, Wilson $e committee member
790 1 0 $a Collins, Philip $e committee member
790 $a 0030
791 $a Ph.D.
792 $a 2013
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3557190