TY - GEN
T1 - Electrical transport properties in phase-separated manganite nanowires investigated using terahertz time domain spectroscopy
AU - Nguyen, T. V.A.
AU - Hattori, A. N.
AU - Nagai, M.
AU - Nakamura, T.
AU - Fujiwara, K.
AU - Ashida, M.
AU - Tanaka, H.
N1 - Publisher Copyright:
© 2015 Japan Society of Applied Physics, Optical Society of America.
PY - 2015
Y1 - 2015
N2 - The typical perovskite manganite (La,Pr,Ca)MnO3 shows exotic colossal magnetoresistivity which is associated to the insulator-metal transition (IMT) [1] from an insulator behavior at a high temperature to a metallic behavior at a low temperature through a critical transition temperature TIM. Around TIM, the phase-separated metal and insulator domains coexist in a nanometer scale. Since the conductive property in a phase-separated material is determined by the conductivity behaviors of metal/insulator nanodomains, understanding the electrical transport properties, i.e., quantitative evaluation of the change of metal fraction (X(T)) and the dc conductivity (σdc(T)) are required. Interestingly, owing to the confinement of nanodomains, the peculiar property was observed in a nanostructure [1], therefore the investigation of their electrical transport properties becomes extremely important. However this is still a challenging issue by using the electrical measurement with attached electrodes.
AB - The typical perovskite manganite (La,Pr,Ca)MnO3 shows exotic colossal magnetoresistivity which is associated to the insulator-metal transition (IMT) [1] from an insulator behavior at a high temperature to a metallic behavior at a low temperature through a critical transition temperature TIM. Around TIM, the phase-separated metal and insulator domains coexist in a nanometer scale. Since the conductive property in a phase-separated material is determined by the conductivity behaviors of metal/insulator nanodomains, understanding the electrical transport properties, i.e., quantitative evaluation of the change of metal fraction (X(T)) and the dc conductivity (σdc(T)) are required. Interestingly, owing to the confinement of nanodomains, the peculiar property was observed in a nanostructure [1], therefore the investigation of their electrical transport properties becomes extremely important. However this is still a challenging issue by using the electrical measurement with attached electrodes.
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M3 - Conference contribution
AN - SCOPUS:85077190295
SN - 9784863485419
T3 - Optics InfoBase Conference Papers
BT - JSAP-OSA Joint Symposia, JSAP 2015
PB - Optica Publishing Group (formerly OSA)
T2 - JSAP-OSA Joint Symposia 2015
Y2 - 13 September 2015 through 16 September 2015
ER -