scholarly journals Anisotropic Phase Separation through the Metal-Insulator Transition in Amorphous Alloys

1994 ◽  
Vol 73 (8) ◽  
pp. 1118-1121 ◽  
Author(s):  
Michael J. Regan ◽  
Marybeth Rice ◽  
Marcela B. Fernandez van Raap ◽  
Arthur Bienenstock
Keyword(s):  
Phase Separation ◽  
Amorphous Alloys ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Anisotropic Phase

Magnetoelastic coupling in strained La0.7Ca0.3MnO3//BaTiO3 Thin Films

2013 ◽  
Vol 1587 ◽  
Author(s):  
A. Alberca ◽  
J. Azpeitia-Urkia ◽  
J. Tornos ◽  
C. Munuera ◽  
F. J. Mompean ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Separation ◽  
Curie Temperature ◽  
Insulator Transition ◽  
Strong Tendency ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Interfacial Effects ◽  
Magnetoelastic Coupling ◽  
Highly Strained

ABSTRACTIn this paper, we explore the interfacial effects appearing in highly strained La0.7Ca0.3MnO3 (LCMO) ultra-thin films (10-12nm) grown on BaTiO3 (BTO) ferroelectric substrates. The strong tendency to phase separation of this optimally doped manganite contributes to the exotic phenomena observed in magnetism and transport experiments: the so-called Matteucci magnetic loops, magnetic granularity and a second metal insulator transition are observed between 50K and the LCMO Curie temperature, 180K. All these properties define the multiferroic character of these heterostructures, which in LCMO//BTO system is strongly linked to magnetoelastic coupling.

Infrared probe of metal-insulator transition in Si 1 − x Gd x and Si 1 − x Y x amorphous alloys in magnetic field

2002 ◽  
Vol 57 (2) ◽  
pp. 240-246 ◽  
Author(s):  
D. N Basov ◽  
A. M Bratkovsky ◽  
P. F Henning ◽  
B Zink ◽  
F Hellman ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Amorphous Alloys ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator

Giant 1/f Noise in Low-Tc CMR Manganites: Evidence of the Percolation Threshold

1999 ◽  
Vol 602 ◽  
Author(s):  
V. Podzorov ◽  
M. Uehara ◽  
M. E. Gershenson ◽  
T. Y. Koo ◽  
S-W. Cheong
Keyword(s):  
Phase Separation ◽  
Single Crystal ◽  
Percolation Threshold ◽  
Single Crystals ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Percolation Network

AbstractWe observed a dramatic peak in the 1/f noise at the metal-insulator transition (MIT) in low-Tc, manganites. This many-orders-of-magnitude noise enhancement is observed for both polycrystalline and single-crystal samples of La5/8−y. Pry, Ca3/8MnO3 (y = 0.35 – 0.4) and Pr1−xCaxMnO3 (x = 0.35 – 0.5). This observation strongly suggests that the microscopic phase separation in the low-Tc, manganites causes formation of a percolation network, and that the observed MIT is a percolation threshold. It is shown that the scale of phase separation in polycrystalline samples is much smaller than that in single crystals.

Direct Mapping of Phase Separation across the Metal–Insulator Transition of NdNiO3

Nano Letters ◽  
2018 ◽  
Vol 18 (4) ◽  
pp. 2226-2232 ◽  
Author(s):  
Daniele Preziosi ◽  
Laura Lopez-Mir ◽  
Xiaoyan Li ◽  
Tom Cornelissen ◽  
Jin Hong Lee ◽  
...  
Keyword(s):  
Phase Separation ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Direct Mapping

scholarly journals The metal-insulator transition in Y1−xCaxTiO3caused by structural phase separation

2002 ◽  
Vol 58 (s1) ◽  
pp. c147-c147 ◽  
Author(s):  
K. Kato ◽  
E. Nishibori ◽  
M. Takata ◽  
M. Sakata ◽  
T. Nakano ◽  
...  
Keyword(s):  
Phase Separation ◽  
Structural Phase ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator

scholarly journals Striped nanoscale phase separation at the metal–insulator transition of heteroepitaxial nickelates

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
G. Mattoni ◽  
P. Zubko ◽  
F. Maccherozzi ◽  
A.J.H. van der Torren ◽  
D. B. Boltje ◽  
...  
Keyword(s):  
Phase Separation ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Nanoscale Phase Separation
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