TY - JOUR
T1 - Transport properties of organic conductor (BEDT-TTF)2KHg(SCN)4
T2 - I. Resistance and magnetoresistance anomaly
AU - Sasaki, T.
AU - Toyota, Naoki
AU - Tokumoto, M.
AU - Kinoshita, N.
AU - Anzai, H.
PY - 1990/7
Y1 - 1990/7
N2 - The electrical resistance of the single crystalline organic salt (BEDT-TTF)2KHg(SCN)4 has been measured at temperatures down to 0.5 K and under magnetic fields up to 13 T. The zero-field resistance decreases almost monotonously with decreasing temperature down to 9-10 K and then exhibits a step-like anomaly accompanying the 30-40% resistance drop around below Ta=8 K. Under fields perpendicular to the conducting a-c plane, the resistance below Ta is so enhanced that an upturn in the temperature-dependent resistance appears and the resistance, for example, at 13 T and 0.5 K, becomes higher by a factor of 12 than the resistance at Ta and H=13 T. This anomalous magnetoresistance is never observed under fields precisely aligned parallel to the a-c plane. The dc magnetic susceptibility shows a broad maximum at Ta, which seems to be an evidence that weak anti-ferromagnetic correlations like spin-density-wave ordering takes place among p(p{cyrillic}) electrons itinerating in the metallic states.
AB - The electrical resistance of the single crystalline organic salt (BEDT-TTF)2KHg(SCN)4 has been measured at temperatures down to 0.5 K and under magnetic fields up to 13 T. The zero-field resistance decreases almost monotonously with decreasing temperature down to 9-10 K and then exhibits a step-like anomaly accompanying the 30-40% resistance drop around below Ta=8 K. Under fields perpendicular to the conducting a-c plane, the resistance below Ta is so enhanced that an upturn in the temperature-dependent resistance appears and the resistance, for example, at 13 T and 0.5 K, becomes higher by a factor of 12 than the resistance at Ta and H=13 T. This anomalous magnetoresistance is never observed under fields precisely aligned parallel to the a-c plane. The dc magnetic susceptibility shows a broad maximum at Ta, which seems to be an evidence that weak anti-ferromagnetic correlations like spin-density-wave ordering takes place among p(p{cyrillic}) electrons itinerating in the metallic states.
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U2 - 10.1016/0038-1098(90)90348-F
DO - 10.1016/0038-1098(90)90348-F
M3 - Article
AN - SCOPUS:0025464260
SN - 0038-1098
VL - 75
SP - 93
EP - 96
JO - Solid State Communications
JF - Solid State Communications
IS - 2
ER -