What question did this study set out to answer?

To synthesize and characterize epitaxial thin films of perovskite-like La 0.67 Ca 0.33 MnO x and evaluate their magnetoresistive behavior.

April 15, 1994Science

Thousandfold Change in Resistivity in Magnetoresistive La-Ca-Mn-O Films

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To synthesize and characterize epitaxial thin films of perovskite-like La 0.67 Ca 0.33 MnO x and evaluate their magnetoresistive behavior.
Deposited epitaxial thin oxide films onto LaAlO 3 substrates using pulsed laser ablation.
Applied specific thermal heat treatments to optimize the crystalline structure and electrical response of the films.
Measured magnetoresistive changes at cryogenic (near 77 K) and ambient room temperatures.
Observed negative isotropic magnetoresistance values as high as 127,000 percent at temperatures near 77 K.
Achieved magnetoresistance of approximately 1300 percent near room temperature, exceeding standard superlattice giant magnetoresistance by more than three orders of magnitude.

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Implication

Experimental study demonstrates thousandfold negative isotropic magnetoresistance in perovskite La-Ca-Mn-O thin films, highlighting potential for advanced magnetic device applications.

Cite This Study

Jin et al. (1994) studied this question.

synapsesocial.com/papers/695d26f3fc1b1b644ea5cf4b https://doi.org/10.1126/science.264.5157.413

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Implication

Experimental study demonstrates thousandfold negative isotropic magnetoresistance in perovskite La-Ca-Mn-O thin films, highlighting potential for advanced magnetic device applications.

Thousandfold Change in Resistivity in Magnetoresistive La-Ca-Mn-O Films

Key Points

Discussion

Implication

Cite This Study

Thousandfold Change in Resistivity in Magnetoresistive La-Ca-Mn-O Films

Key Points

Discussion

Implication

Cite This Study

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