A large electric-pulse-induced reversible resistance change active at room temperature and under zero magnetic field has been discovered in colossal magnetoresistive (CMR) Pr0.7Ca0.3MnO3 thin films. Electric field-direction-dependent resistance changes of more than 1700% were observed under applied pulses of ∼100 ns duration and as low as ±5 V magnitude. The resistance changes were cumulative with pulse number, were reversible and nonvolatile. This electrically induced effect, observed in CMR materials at room temperature has both the benefit of a discovery in materials properties and the promise of applications for thin film manganites in the electronics arena including high-density nonvolatile memory.

1.
S.
Jin
,
T. H.
Tiefel
,
M.
McCormack
,
R. A.
Fastnacht
,
R.
Ramesh
, and
L. H.
Chen
,
Science
264
,
413
(
1994
).
Google Scholar
 
2.
N.
Mathur
,
Nature (London)
390
,
229
(
1997
).
Google Scholar
 
3.
S. P.
Isaac
,
N. D.
Mathur
,
J. E.
Evetts
, and
M. G.
Blamire
,
Appl. Phys. Lett.
72
,
2038
(
1998
).
Google Scholar
 
4.
H. Y.
Hwang
,
S.-W.
Cheong
, and
B.
Batlogg
,
Appl. Phys. Lett.
68
,
3494
(
1996
).
Google Scholar
 
5.
Y.
Tomioka
,
A.
Asamitsu
,
H.
Kuwahara
,
Y.
Moritomo
, and
Y.
Tokura
,
Phys. Rev. B
53
,
R1689
(
1995
).
Google Scholar
 
6.
H.
Yoshizawa
,
H.
Kawano
,
Y.
Tomioka
, and
Y.
Tokura
,
Phys. Rev. B
52
,
R13145
(
1995
).
Google Scholar
 
7.
S. K.
Singh
,
S. B.
Palmer
,
D. M.
Paul
, and
M. R.
Lees
,
Appl. Phys. Lett.
69
,
263
(
1996
).
Google Scholar
 
8.
A.
Asamitsu
,
Y.
Tomioka
,
H.
Kuwahara
, and
Y.
Tokura
,
Nature (London)
388
,
50
(
1997
).
Google Scholar
 
9.
R.
Ramesh
,
A.
Inam
,
W. k.
Chan
,
B.
Wilkens
,
K.
Myers
,
K.
Remschnig
,
D. L.
Hart
, and
J. M.
Tarascon
,
Science
252
,
944
(
1991
).
Google Scholar
 
10.
N. J.
Wu
,
Y. S.
Chen
,
J. Y.
Fan
, and
A.
Ignatiev
,
J. Appl. Phys.
83
,
4980
(
1998
).
Google Scholar
 
11.
M.
Fiebig
,
K.
Miyaho
,
Y.
Tomioka
, and
Y.
Tokura
,
Science
280
,
1925
(
1998
).
Google Scholar
 
12.
J. M.
De Teresa
,
M. R.
Ibarra
,
P. A.
Algarabel
,
C.
Ritter
,
C.
Marquina
,
J.
Blasco
,
J.
Garcia
,
A.
del Moral
, and
Z.
Arnold
,
Nature (London)
386
,
256
(
1997
).
Google Scholar
 
13.
A. J.
Millis
,
Nature (London)
392
,
147
(
1998
).
Google Scholar
 
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