A magnetic force microscope using CoFe-coated carbon nanotube probes

被引：57

作者：

Kuramochi, H

Uzumaki, T

Yasutake, M

Tanaka, A

Akinaga, H

Yokoyama, H

机构：

[1] Natl Inst Adv Insd Sci & Technol, AIST, Res Consortium Synth Nanofunct Mat Project, SYNAF, Tsukuba, Ibaraki 3058568, Japan

[2] SII Nano Technol Inc, Shizuoka 4101393, Japan

[3] Fujitsu Labs Ltd, Kanagawa 2430197, Japan

[4] AIST, NRI, Tsukuba, Ibaraki 3058568, Japan

来源：

NANOTECHNOLOGY | 2005年 / 16卷 / 01期

关键词：

D O I：

10.1088/0957-4484/16/1/006

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ferromagnetic-film-coated carbon nanotube (CNT) probes were employed in a magnetic force microscope (MFM) observation. We succeeded in making a uniform ferromagnetic film on the CNT probes by improving the coating process and selecting materials. The performance of the CoFe-coated CNT probe was evaluated in ultra-high-density perpendicular magnetic storage media with densities from 600 to 1100 k flux changes per inch (FCI). The magnetic domain structure of the magnetic storage media was clearly observed up to 1100 kFCI. The ultimate lateral resolution of the newly developed MFM probes is down to about 10 nm, which exceeds the bit length of a magnetic recording with a density of Tbit inch(-2).

引用

页码：24 / 27

页数：4

共 16 条

[1] Nanotubes as nanoprobes in scanning probe microscopy [J].

Dai, HJ ;

Hafner, JH ;

Rinzler, AG ;

Colbert, DT ;

Smalley, RE .

NATURE, 1996, 384 (6605) :147-150

[2] Magnetic imaging with soft X-ray microscopies [J].

Fischer, P ;

Denbeaux, G ;

Stoll, H ;

Puzic, A ;

Raabe, J ;

Nolting, F ;

Eimüller, T ;

Schütz, G .

JOURNAL DE PHYSIQUE IV, 2003, 104 :471-476

[3] Magnetic nanoparticle array with perpendicular crystal magnetic anisotropy [J].

Haginoya, C ;

Heike, S ;

Ishibashi, M ;

Nakamura, K ;

Koike, K ;

Yoshimura, T ;

Yamamoto, J ;

Hirayama, Y .

JOURNAL OF APPLIED PHYSICS, 1999, 85 (12) :8327-8331

[4] Complex magnetism in ultra-thin films:: atomic-scale spin structures and resolution by the spin-polarized scanning tunneling microscope [J].

Heinze, S ;

Kurz, P ;

Wortmann, D ;

Bihlmayer, G ;

Blügel, S .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2002, 75 (01) :25-36

[5] Resolving magnetic nanostructures in the 10-nm range using MFM at ambient conditions [J].

Koblischka, MR ;

Hartmann, U ;

Sulzbach, T .

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2003, 23 (6-8) :747-751

[6] A spin-polarized scanning electron microscope with 5-nm resolution [J].

Kohashi, T ;

Koike, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2001, 40 (11B) :L1264-L1266

[7] Imaging of sub-100-nm magnetic domains in atomically stacked Fe(001)/Au(001) multilayers [J].

Kohler, M. ;

Schweinbock, T. ;

Schmidt, T. ;

Zweck, J. ;

Bayreuther, G. ;

Fischer, P. ;

Schutz, G. ;

Eimuller, T. ;

Guttmann, P. ;

Schmahl, G. .

Journal of Applied Physics, 2000, 87 (9 pt 3) :6481-6483

[8] MAGNETIC IMAGING BY FORCE MICROSCOPY WITH 1000-A RESOLUTION [J].

MARTIN, Y ;

WICKRAMASINGHE, HK .

APPLIED PHYSICS LETTERS, 1987, 50 (20) :1455-1457

[9] Magnetic domain structure in a ferromagnetic shape memory alloy Ni51Fe22Ga27 studied by electron holography and Lorentz microscopy [J].

Murakami, Y ;

Shindo, D ;

Oikawa, K ;

Kainuma, R ;

Ishida, K .

APPLIED PHYSICS LETTERS, 2003, 82 (21) :3695-3697

[10] Carbon-nanotube tips for scanning probe microscopy: Preparation by a controlled process and observation of deoxyribonucleic acid [J].

Nishijima, H ;

Kamo, S ;

Akita, S ;

Nakayama, Y ;

Hohmura, KI ;

Yoshimura, SH ;

Takeyasu, K .

APPLIED PHYSICS LETTERS, 1999, 74 (26) :4061-4063

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