Magnetization reversal study of CoCrPt alloy thin films on a nanogranular-length scale using magnetic transmission soft x-ray microscopy

被引：15

作者：

Im, MY ^{[1
]}

Fischer, P

Eimüller, T

Denbeaux, G

Shin, SC

机构：

[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea

[2] Korea Adv Inst Sci & Technol, Ctr Nanospin Spintron Mat, Taejon 305701, South Korea

[3] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

[4] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 22期

关键词：

D O I：

10.1063/1.1631752

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated element-specific magnetization reversal behavior of (Co83Cr17)(87)Pt-13 alloy thin films with a lateral resolution of 35-nm using magnetic transmission soft x-ray microscopy. We report that the magnetization switching is carried out by a random nucleation process that can be attributed to individual grains. We found evidence of a large distribution of the switching fields at the nanogranular-length scale, which has to be considered seriously for applications of CoCrPt systems as high-density magnetic storage materials. (C) 2003 American Institute of Physics.

引用

页码：4589 / 4591

页数：3

共 15 条

[1]

Attwood D, 2002, AIP CONF PROC, V641, P461, DOI 10.1063/1.1521061

[2] Magnetization reversal in nanostructured Co/Pd multilayers [J].

Choe, SB ;

Shin, SC .

PHYSICAL REVIEW B, 1998, 57 (02) :1085-1089

[3] Imaging of magnetic domains with the X-ray microscope at BESSY using X-ray magnetic circular dichroism [J].

Fischer, P ;

Schutz, G ;

Schmahl, G ;

Guttmann, P ;

Raasch, D .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1996, 101 (03) :313-316

[4] Magnetic imaging with soft X-ray microscopy [J].

Fischer, P ;

Denbeaux, G ;

Eimüller, T ;

Goll, D ;

Schütz, G .

IEEE TRANSACTIONS ON MAGNETICS, 2002, 38 (05) :2427-2431

[5] Element-specific imaging of magnetic domains at 25 nm spatial resolution using soft x-ray microscopy [J].

Fischer, P ;

Eimüller, T ;

Schütz, G ;

Denbeaux, G ;

Pearson, A ;

Johnson, L ;

Attwood, D ;

Tsunashima, S ;

Kumazawa, M ;

Takagi, N ;

Köhler, M ;

Bayreuther, G .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (05) :2322-2324

[6] Thermal stability of magnetic recording in perpendicular thin film media [J].

Futamoto, H ;

Hirayama, Y ;

Inaba, N ;

Honda, Y ;

Ito, K ;

Kikugawa, A ;

Takeuchi, T .

IEEE TRANSACTIONS ON MAGNETICS, 1999, 35 (05) :2802-2807

[7] Microstructural segregation in CoCrTa and CoCrPt longitudinal magnetic recording media [J].

Inaba, N ;

Yamamoto, T ;

Hosoe, Y ;

Futamoto, M .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1997, 168 (1-2) :222-231

[8] Effects of Pt and Ta on the magnetic anisotropy of Co and Co-Cr thin films [J].

Kitakami, O ;

Kikuchi, N ;

Okamoto, S ;

Shimada, Y ;

Oikawa, K ;

Otani, Y ;

Fukamichi, K .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 202 (2-3) :305-310

[9] Reduction of Co-Cr-Pt media noise by addition of Ti to Cr underlayer [J].

Matsuda, Y ;

Yahisa, Y ;

Inagaki, J ;

Fujita, E ;

Ishikawa, A ;

Hosoe, Y .

JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) :5351-5353

[10] MAGNETIZATION REVERSAL IN ULTRATHIN FERROMAGNETIC-FILMS WITH PERPENDICULAR ANISOTROPY - DOMAIN OBSERVATIONS [J].

POMMIER, J ;

MEYER, P ;

PENISSARD, G ;

FERRE, J ;

BRUNO, P ;

RENARD, D .

PHYSICAL REVIEW LETTERS, 1990, 65 (16) :2054-2057

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