TY - JOUR
T1 - Interplay between magnetism and conductivity in the one-dimensional organic conductor TPP [Fe (Pc) (CN) 2] 2
AU - Kimata, M.
AU - Takahide, Y.
AU - Harada, A.
AU - Satsukawa, H.
AU - Hazama, K.
AU - Terashima, T.
AU - Uji, S.
AU - Naito, T.
AU - Inabe, T.
PY - 2009/8/18
Y1 - 2009/8/18
N2 - The strongly nonlinear current-voltage (I-V) characteristics and the large negative magnetoresistance (MR) are observed at low temperatures in the one-dimensional organic conductor TPP [Fe (Pc) (CN) 2] 2. The nonlinear I-V curves are interpreted as the transport of the electrons and holes excited from the charge ordered state on the Fe (Pc) (CN) 2 chains, whose energy gap strongly depends on electric fields. The negative MR is enhanced as temperature decreases, and the resistance steeply changes over four orders of magnitude around 15 T at 1.5 K. This decrease is associated with a magnetic torque anomaly, and the energy gap is rapidly reduced around 15 T. The detailed analyses of the I-V curves show that the electric flux distribution, i.e., the dimensionality of the Coulomb interaction between the carriers, also changes around 15 T.
AB - The strongly nonlinear current-voltage (I-V) characteristics and the large negative magnetoresistance (MR) are observed at low temperatures in the one-dimensional organic conductor TPP [Fe (Pc) (CN) 2] 2. The nonlinear I-V curves are interpreted as the transport of the electrons and holes excited from the charge ordered state on the Fe (Pc) (CN) 2 chains, whose energy gap strongly depends on electric fields. The negative MR is enhanced as temperature decreases, and the resistance steeply changes over four orders of magnitude around 15 T at 1.5 K. This decrease is associated with a magnetic torque anomaly, and the energy gap is rapidly reduced around 15 T. The detailed analyses of the I-V curves show that the electric flux distribution, i.e., the dimensionality of the Coulomb interaction between the carriers, also changes around 15 T.
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U2 - 10.1103/PhysRevB.80.085110
DO - 10.1103/PhysRevB.80.085110
M3 - Article
AN - SCOPUS:70349438745
VL - 80
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 8
M1 - 085110
ER -