TY - JOUR
T1 - Nonlinear behavior in the electrical resistance of strongly correlated insulators
AU - Katsufuji, Takuro
AU - Ikeda, Hiroaki
AU - Ashizawa, Misa
AU - Oike, Michiyo
AU - Kajita, Tomomasa
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Nos. 16H04020 and 19H01853 and JST CREST Grant No. JPMJCR15Q2.
Funding Information:
Acknowledgment This work was supported by JSPS KAKENHI Grant Nos. 16H04020 and 19H01853 and JST CREST Grant No. JPMJCR15Q2.
Publisher Copyright:
© 2020 The Author(s).
PY - 2020
Y1 - 2020
N2 - We studied the nonlinear behavior in the electrical resistance of various correlated insulators. We found that, irrespective of the origin of the insulating state, the resistivity starts decreasing above a critical field Ec, which hardly depends on the temperature and the compound, at a time scale of less than microseconds. This universal behavior in the nonlinear resistivity is discussed on the basis of percolation conduction in a disordered system. We also discuss a substantial decrease in the resistance at the longer time scale of milliseconds.
AB - We studied the nonlinear behavior in the electrical resistance of various correlated insulators. We found that, irrespective of the origin of the insulating state, the resistivity starts decreasing above a critical field Ec, which hardly depends on the temperature and the compound, at a time scale of less than microseconds. This universal behavior in the nonlinear resistivity is discussed on the basis of percolation conduction in a disordered system. We also discuss a substantial decrease in the resistance at the longer time scale of milliseconds.
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U2 - 10.7566/JPSJ.89.044702
DO - 10.7566/JPSJ.89.044702
M3 - Article
AN - SCOPUS:85090638041
SN - 0031-9015
VL - 89
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 4
M1 - 044702
ER -