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Metastable resistivity states and conductivity fluctuations in low-doped manganite single crystals
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10.1063/1.4768264
/content/aip/journal/jap/112/11/10.1063/1.4768264
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/11/10.1063/1.4768264
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Temperature dependence of the resistivity in the pristine state and in two subsequent metastable states, state 1 and state 2, created by application of voltage pulses at 77 K. Inset shows collapse of temperature dependencies of the resistivity normalized to the resistivity at for all states into a single curve.

Image of FIG. 2.
FIG. 2.

Power spectral density at 1 Hz and spectral exponent of 1/f conductivity noise in different metastable states as a function of temperature and bias current.

Image of FIG. 3.
FIG. 3.

Normalized noise power spectral density at 1 Hz as a function of bias voltage in different metastable states at T = 77 K.

Image of FIG. 4.
FIG. 4.

Voltage derivative of the sample conductance measured at 77 K in different metastable states as a function of bias voltage. Hatched boxes indicate bias range at which the conductance is roughly proportional to .

Image of FIG. 5.
FIG. 5.

Spectral exponent of the noise as a function of bias voltage in different metastable states at 77 K.

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/content/aip/journal/jap/112/11/10.1063/1.4768264
2012-12-05
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Metastable resistivity states and conductivity fluctuations in low-doped La1−xCaxMnO3 manganite single crystals
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/11/10.1063/1.4768264
10.1063/1.4768264
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