TY - JOUR
T1 - Transport properties of organic conductor (BEDT-TTF)2KHg(SCN)4
T2 - II. Shubnikov-de Haas oscillations and spin-splitting effect
AU - Sasaki, T.
AU - Toyota, N.
AU - Tokumoto, M.
AU - Kinoshita, N.
AU - Anzai, H.
N1 - Funding Information:
Acknowledgements-The authors appreciate Dr. T. Osada (Univ. of Tokyo) for sending us a preprint and he1 ful discussions and Prof. J. R. Anderson (Univ. E aryland) for helpful discussions. The resent studies have been carried out at Hi h Field E aboratory, IMR and partly supported by d rant-in -Aid for Special Research from the Ministry of Education, Science and Culture of Japan. Profs. Y. Muto and T. Fukase are appreciated for their encouragements.
PY - 1990/7
Y1 - 1990/7
N2 - The magnetoresistance, the Shubnikov-de Haas (SdH) effect and their orientation dependence of an organic conductor (BEDT-TTF)2KHg(SCN)4 have been measured at temperatures down to 0.5 K and under magnetic fields up to 13 T. The SdH frequency F=670T, the cyclotron mass mc=1.4m0 and the Dingle temperature TD=1.6K are obtained when the fields are applied perpendicular to the conducting a-c plane. The dependence of F on the angle θ between the field and the b*-axis (⊥ a-c plane), which deviates slightly from cosθ, indicates the presence of the weakly warped cylindrical Fermi surface with an interlayer transfer integral estimated to be about 1 meV. Below 1 K and above 10 T, the spin-splitting effect is clearly observed and the direct analysis of the splitting oscillations results in the series of the g-factor; g=1.4n±0.6 (n is an odd number). The rigorous g-factor of 2.0 (n=1, + sign), being consistent with ESR measurements, is obtained.
AB - The magnetoresistance, the Shubnikov-de Haas (SdH) effect and their orientation dependence of an organic conductor (BEDT-TTF)2KHg(SCN)4 have been measured at temperatures down to 0.5 K and under magnetic fields up to 13 T. The SdH frequency F=670T, the cyclotron mass mc=1.4m0 and the Dingle temperature TD=1.6K are obtained when the fields are applied perpendicular to the conducting a-c plane. The dependence of F on the angle θ between the field and the b*-axis (⊥ a-c plane), which deviates slightly from cosθ, indicates the presence of the weakly warped cylindrical Fermi surface with an interlayer transfer integral estimated to be about 1 meV. Below 1 K and above 10 T, the spin-splitting effect is clearly observed and the direct analysis of the splitting oscillations results in the series of the g-factor; g=1.4n±0.6 (n is an odd number). The rigorous g-factor of 2.0 (n=1, + sign), being consistent with ESR measurements, is obtained.
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U2 - 10.1016/0038-1098(90)90349-G
DO - 10.1016/0038-1098(90)90349-G
M3 - Article
AN - SCOPUS:0025461656
VL - 75
SP - 97
EP - 100
JO - Solid State Communications
JF - Solid State Communications
SN - 0038-1098
IS - 2
ER -