The noise of two integrated multilayer magnetometers in static magnetic fields up to 110 μT is investigated: An inductively coupled magnetometer with integrated flux transformer and a multiloop magnetometer. In both samples, only a moderate increase of the low frequency flux noise is found in high fields, due to the high epitaxial quality of the involved multilayer films. So for moderately shielded or unshielded applications in the earth’s magnetic field, high-quality integrated magnetometers can be operated with low excess noise.
REFERENCES
1.
D.
Drung
, F.
Ludwig
, W.
Müller
, U.
Steinhoff
, L.
Trahms
, H.
Koch
, Y. Q.
Shen
, M. B.
Jensen
, P.
Vase
, T.
Holst
, T.
Freltov
, and G.
Curio
, Appl. Phys. Lett.
68
, 1421
(1996
).2.
D.
Drung
, E.
Dantsker
, F.
Ludwig
, H.
Koch
, R.
Kleiner
, J.
Clarke
, S.
Krey
, D.
Reimer
, B.
David
, and O.
Dössel
, Appl. Phys. Lett.
68
, 1856
(1996
).3.
M. J.
Ferrari
, M.
Johnson
, F. C.
Wellstood
, J.
Clarke
, D.
Mitzi
, P. A.
Rosenthal
, C. B.
Eom
, T. H.
Geballe
, A.
Kapitulnik
, and M. R.
Beasley
, Phys. Rev. Lett.
64
, 72
(1990
).4.
A. H.
Miklich
, D.
Koelle
, T. J.
Shaw
, F.
Ludwig
, D. T.
Nemeth
, E.
Dantsker
, J.
Clarke
, N. McN.
Alford
, T. W.
Button
, and M. S.
Colclough
, Appl. Phys. Lett.
64
, 3494
(1994
).5.
M. I.
Faley
, U.
Poppe
, K.
Urban
, H.
Hilgenkamp
, H.
Hemmes
, W.
Aarnink
, J.
Flokstra
, and H.
Rogalla
, Appl. Phys. Lett.
67
, 2087
(1995
).6.
J. M. Schmidt, L. P. Lee, A. Matlashov, M. Teepe, V. Vinetskiy, R. Cantor, and M. S. DiIorio, Proceedings of Biomag 96, Santa Fe, NM, 16–21 February, 1996.
7.
E.
Dantsker
, S.
Tanaka
, P.-Å.
Nilsson
, R.
Kleiner
, and J.
Clarke
, Appl. Phys. Lett.
69
, 4099
(1996
).8.
E.
Dantsker
, S.
Tanaka
, and J.
Clarke
, Appl. Phys. Lett.
70
, 2037
(1997
).9.
B.
David
, D.
Grundler
, R.
Eckart
, K.
Fanghänel
, J. P.
Krumme
, V.
Doormann
, and O.
Dössel
, Supercond. Sci. Technol.
7
, 287
(1994
).10.
M. J.
Ferrari
, M.
Johnson
, F. C.
Wellstood
, J.
Clarke
, P. A.
Rosenthal
, R. H.
Hammond
, and M. R.
Beasley
, Appl. Phys. Lett.
53
, 695
(1988
).11.
F.
Ludwig
, D.
Koelle
, E.
Dantsker
, D. T.
Nemeth
, A. H.
Miklich
, J.
Clarke
, and R. E.
Thomson
, Appl. Phys. Lett.
66
, 373
(1995
).12.
R.
Scharnweber
, N.
Dieckmann
, and M.
Schilling
, Appl. Phys. Lett.
70
, 2189
(1997
).13.
B.
David
, D.
Grundler
, J. P.
Krumme
, and O.
Dössel
, IEEE Trans. Appl. Supercond.
5
, 2935
(1995
).14.
15.
R. H.
Koch
, J. Z.
Sun
, V.
Foglietta
, and W.
Gallagher
, Appl. Phys. Lett.
67
, 709
(1995
).16.
M.
Mück
, S.
Schöne
, and C.
Heiden
, IEEE Trans. Appl. Supercond.
7
, 3263
(1997
).
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