We have combined a novel low temperature positioning mechanism with a single‐chip miniature superconducting quantum interference device (SQUID) magnetometer to form an extremely sensitive new magnetic microscope, with a demonstrated spatial resolution of ∼10 μm. The design and operation of this scanning SQUID microscope will be described. The absolute calibration of this instrument with an ideal point source, a single vortex trapped in a superconducting film, will be presented, and a representative application will be discussed.

1.
F. P. Rogers, MIT Master’s Thesis, Boston, 1983.
2.
H.
Minami,
Q.
Geng,
K.
Chihara,
J.
Yuyama
, and
E.
Goto,
Cryogenics
32
,
648
(
1992
).
Google Scholar
 
3.
A.
Mathai,
D.
Song,
Y.
Gim
, and
F. C.
Wellstood,
Appl. Phys. Lett.
61
,
598
(
1993
).
Google Scholar
 
4.
L. N.
Vu
and
D. J.
van Harlingen,
IEEE Trans. Appl. Supercond.
3
,
1918
(
1993
).
Google Scholar
 
5.
Y. P.
Ma,
I. M.
Thomas,
A.
Lauder,
J. P.
Wikswo,
IEEE Trans. Appl. Supercond.
3
,
1941
(
1993
).
Google Scholar
 
6.
R. C.
Black,
A.
Mathai,
F. C.
Wellstood,
E.
Dantsker,
A. H.
Miklich,
D. T.
Nemeth,
J. J.
Kingston
, and
J.
Clarke,
Appl. Phys. Lett.
62
,
2128
(
1993
).
Google Scholar
 
7.
David W.
Abraham,
C. C.
Williams
, and
H. K.
Wickramisinghe,
Appl. Phys. Lett.
53
,
1503
(
1998
).
Google Scholar
 
8.
L. N.
Vu,
M. S.
Wistrom
, and
D. J.
van Harlingen,
Appl. Phys. Lett.
63
,
1693
(
1993
).
Google Scholar
 
9.
M. B.
Ketchen,
D.
Pearson,
A. W.
Kleinasser,
C. K.
Hu,
M.
Smyth,
J.
Logan,
K.
Stawiasz,
E.
Baran,
M.
Jaso,
T.
Ross,
M.
Manny,
S.
Basavaiah,
S.
Brodsky,
S. B.
Kaplan,
W. J.
Gallagher
, and
M.
Bhushan,
Appl. Phys. Lett.
59
,
2609
(
1991
).
Google Scholar
 
10.
M. B.
Ketchen,
D. J.
Pearson,
K.
Stawiasz,
C.-K.
Hu,
A. W.
Kleinsasser,
T.
Brunner,
C.
Cabral,
V.
Chandrashekhar,
M.
Jaso,
M.
Manny,
K.
Stein
, and
M.
Bhushan,
IEEE Trans. Appl. Supercond.
3
,
1795
(
1993
).
Google Scholar
 
11.
J. Z.
Sun,
W. J.
Gallagher,
A. C.
Callegari,
V.
Foglietti
, and
R. H.
Koch,
Appl. Phys. Lett.
63
,
1561
(
1993
).
Google Scholar
 
12.
J. Z. Sun, W. J. Gallagher, and R. H. Koch, Phys. Rev. B (in press).
13.
See for example the discussion, in Experimental Spectroscopy, Ralph A. Sawyer (Dover, New York, 1963), p. 34.
14.
C. C.
Tsuei,
J. R.
Kirtley,
C. C.
Chi,
L. S.
Yu-Jahnes,
A.
Gupta,
T.
Shaw,
J. Z.
Sun
, and
M. B.
Ketchen,
Phys. Rev. Lett.
73
,
593
(
1993
).
Google Scholar
 
This content is only available via PDF.
© 1995 American Institute of Physics.
1995
American Institute of Physics
You do not currently have access to this content.