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Surface magnetic properties of ferro...

Xu, Tianhong.

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Surface magnetic properties of ferromagnetic nickel thin films and multilayer structures.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Surface magnetic properties of ferromagnetic nickel thin films and multilayer structures./
作者:	Xu, Tianhong.
面頁冊數:	245 p.
附註:	Source: Dissertation Abstracts International, Volume: 71-04, Section: B, page: 2400.
Contained By:	Dissertation Abstracts International71-04B.
標題:	Chemistry, Inorganic. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NR58755
ISBN:	9780494587553

Surface magnetic properties of ferromagnetic nickel thin films and multilayer structures.
Xu, Tianhong.

Surface magnetic properties of ferromagnetic nickel thin films and multilayer structures. - 245 p.

Source: Dissertation Abstracts International, Volume: 71-04, Section: B, page: 2400.

Thesis (Ph.D.)--Simon Fraser University (Canada), 2008.

This item must not be sold to any third party vendors.

Devices based on magnetic multilayer structures are widely used in the magnetic storage industry. The interfacial magnetic behaviour in these and related structures determines their spin-dependent electron transport properties. This thesis addresses the effects of the surface quality and magnetic properties of Ni thin films and multilayer structures to understand the relationship between the microscopic physical and magnetic structure and macroscopic transport properties.

ISBN: 9780494587553Subjects--Topical Terms:

517253
Chemistry, Inorganic.

Surface magnetic properties of ferromagnetic nickel thin films and multilayer structures.
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100 1 $a Xu, Tianhong. $3 3171666
245 1 0 $a Surface magnetic properties of ferromagnetic nickel thin films and multilayer structures.
300 $a 245 p.
500 $a Source: Dissertation Abstracts International, Volume: 71-04, Section: B, page: 2400.
502 $a Thesis (Ph.D.)--Simon Fraser University (Canada), 2008.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a Devices based on magnetic multilayer structures are widely used in the magnetic storage industry. The interfacial magnetic behaviour in these and related structures determines their spin-dependent electron transport properties. This thesis addresses the effects of the surface quality and magnetic properties of Ni thin films and multilayer structures to understand the relationship between the microscopic physical and magnetic structure and macroscopic transport properties.
520 $a The effects of surface roughness on the magnetic properties of Ni-based thin films, nanowires and multilayer structures have been investigated using linear and nonlinear optical Kerr effect methods, magnetometry and scanning probe microscopy. The magnetic properties of Ni films possessing different surface roughness have been investigated through magnetic second harmonic generation (MSHG) studies. MSHG studies show significant differences between the films' magnetic properties, indicating that surface roughness plays an important role in determining the surface magnetic properties. MSHG studies of Ni nanowire arrays show large magnetic contrast associated with large effective surface areas and additional contributions to the susceptibility, not present in thin films. Electrodeposition of Ni/Cu multilayer structures yield films which display giant magneto-resistance (GMR) behaviour. The effects of layer thickness, roughness and deposition method on their macroscopic magnetoresistance are described.
520 $a In situ scanning tunnelling microscopy (STM) was employed to study the growth kinetics of Ni films on single crystal Au(111) surfaces through electrodeposition. It has been shown that 2-D or 3-D growth of Ni thin films can be controlled by changing the deposition potentials. The nonlinear optical response from the electrodeposited films indicates that Ni films deposited at a low overpotential possess greater magnetic contrasts and coercive fields. This study reveals the important connection between the film growth mechanisms and the magnetic properties in the ferromagnetic materials.
520 $a Ultrafast magnetization dynamics of electrodeposited nickel surfaces have been studied using time-resolved MSHG with laser pulses of various pump beam f1uence. A fast drop of the second-harmonic intensity within 700 fs after optical excitation is observed which is followed by a partial recovery, within a few picoseconds, indicating the surface magnetic property dependence on the magnetization after the perturbation of the pump laser.
590 $a School code: 0791.
650 4 $a Chemistry, Inorganic. $3 517253
690 $a 0488
710 2 $a Simon Fraser University (Canada). $3 1020621
773 0 $t Dissertation Abstracts International $g 71-04B.
790 $a 0791
791 $a Ph.D.
792 $a 2008
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NR58755