An Analysis to Improve Spatial Resolution of Scanning Superconducting Quantum Interference Device Microscope

被引：1

作者：

Hayashi, Masahiko ^{[1
,2
]}

Kaiwa, Toru ^{[2
,3
]}

Ebisawa, Hiromichi ^{[2
,3
]}

Matsushima, Yoshiaki ^{[2
,4
]}

Shimizu, Makoto ^{[2
,4
]}

Ishida, Takekazu ^{[2
,4
]}

Satoh, Kazuo ^{[2
,5
]}

Yotsuya, Tsutomu ^{[2
,5
]}

机构：

[1] Akita Univ, Fac Educ & Human Studies, Akita 0108502, Japan

[2] JST CREST, Kawaguchi, Saitama 3320012, Japan

[3] Tohoku Univ, Grad Sch Informat Sci, Sendai, Miyagi 9808579, Japan

[4] Osaka Prefecture Univ, Dept Phys & Elect, Osaka 5998531, Japan

[5] Technol Res Inst Osaka Prefecture, Izumi Ku, Osaka 5941157, Japan

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2009年 / 54卷 / 01期

关键词：

Superconducting Quantum Interference Device; Magnetic field; Image processing; Vortex patterns; Superconducting network; T-C; NETWORK; LATTICE; NOISE; FILMS;

D O I：

10.3938/jkps.54.303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is shown that the spatial resolution of scanning superconducting quantum interference device (SQUID) microscope, which is considered naively to be limited by the size of the pickup coil (typically grater than of the order of pm) I can be improved by applying a mathematical transformation to the obtained data. The resolution of the image is improved at best to the scanning step size (can be less than of the order of mu m) even in the presense of the noise. Problems to be solved in applying the method to visualize the. fluxons in superconducting network structures are discussed by use of numerical simulations and of real experimental data.

引用

页码：303 / 307

页数：5

共 24 条

[1] Monolithic low-transition-temperature superconducting magnetometers for high resolution imaging magnetic fields of room temperature samples [J].

Baudenbacher, F ;

Fong, LE ;

Holzer, JR ;

Radparvar, M .

APPLIED PHYSICS LETTERS, 2003, 82 (20) :3487-3489

[2] MAGNETIC MICROSCOPY USING A LIQUID-NITROGEN COOLED YBA2CU3O7 SUPERCONDUCTING QUANTUM INTERFERENCE DEVICE [J].

BLACK, RC ;

MATHAI, A ;

WELLSTOOD, FC ;

DANTSKER, E ;

MIKLICH, AH ;

NEMETH, DT ;

KINGSTON, JJ ;

CLARKE, J .

APPLIED PHYSICS LETTERS, 1993, 62 (17) :2128-2130

[3] Relationship between spatial resolution and noise in scanning superconducting quantum interference device microscopy [J].

Chatraphorn, S ;

Fleet, EF ;

Wellstood, FC .

JOURNAL OF APPLIED PHYSICS, 2002, 92 (08) :4731-4740

[4] Vortex imaging of magnetic superconductor HoNi2B2C by scanning SQUID microscopy [J].

Hata, Y ;

Suzuki, J ;

Kakeya, I ;

Kadowaki, K ;

Nakayama, S ;

Nagata, A ;

Odawara, A ;

Chinone, K .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 378 :420-423

[5] Ordering and manipulation of the magnetic moments in large-scale superconducting π-loop arrays [J].

Hilgenkamp, H ;

Ariando ;

Smilde, HJH ;

Blank, DHA ;

Rijnders, G ;

Rogalla, H ;

Kirtley, JR ;

Tsuei, CC .

NATURE, 2003, 422 (6927) :50-53

[6] Diamagnetic activity above Tc as a precursor to superconductivity in La2-xSrxCuO4 thin films [J].

Iguchi, I ;

Yamaguchi, T ;

Sugimoto, A .

NATURE, 2001, 412 (6845) :420-423

[7] Vortex observations in the triangular microhole lattice on Pb film by SQUID microscope [J].

Ishida, T ;

Yoshida, M ;

Okayasu, S ;

Hojou, K .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2001, 14 (12) :1128-1130

[8] Direct observation of vortex images on lead micro-hole lattice by SQUID microscope [J].

Ishida, T ;

Yoshida, M ;

Okuda, K ;

Okayasu, S ;

Sasase, M ;

Hojou, K ;

Odawara, A ;

Nagata, A ;

Morooka, T ;

Nakayama, S ;

Chinone, K .

PHYSICA C, 2001, 357 (SUPPL. 2) :604-607

[9] Variable sample temperature scanning superconducting quantum interference device microscope [J].

Kirtley, JR ;

Tsuei, CC ;

Moler, KA ;

Kogan, VG ;

Clem, JR ;

Turberfield, AJ .

APPLIED PHYSICS LETTERS, 1999, 74 (26) :4011-4013

[10] HIGH-RESOLUTION SCANNING SQUID MICROSCOPE [J].

KIRTLEY, JR ;

KETCHEN, MB ;

STAWIASZ, KG ;

SUN, JZ ;

GALLAGHER, WJ ;

BLANTON, SH ;

WIND, SJ .

APPLIED PHYSICS LETTERS, 1995, 66 (09) :1138-1140

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