Transport properties of organic conductor (BEDT-TTF)2KHg(SCN)4: II. Shubnikov-de Haas oscillations and spin-splitting effect

T. Sasaki; N. Toyota; M. Tokumoto; N. Kinoshita; H. Anzai

doi:10.1016/0038-1098(90)90349-G

Transport properties of organic conductor (BEDT-TTF)₂KHg(SCN)₄: II. Shubnikov-de Haas oscillations and spin-splitting effect

T. Sasaki, N. Toyota, M. Tokumoto, N. Kinoshita, H. Anzai

Research output: Contribution to journal › Article › peer-review

56 Citations (Scopus)

Abstract

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 m_c=1.4m₀ and the Dingle temperature T_D=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.

Original language	English
Pages (from-to)	97-100
Number of pages	4
Journal	Solid State Communications
Volume	75
Issue number	2
DOIs	https://doi.org/10.1016/0038-1098(90)90349-G
Publication status	Published - 1990 Jul

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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@article{51e377b7b68645edab11237ef8dd1682,

title = "Transport properties of organic conductor (BEDT-TTF)2KHg(SCN)4: II. Shubnikov-de Haas oscillations and spin-splitting effect",

abstract = "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.",

author = "T. Sasaki and N. Toyota and M. Tokumoto and N. Kinoshita and H. Anzai",

note = "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.",

year = "1990",

month = jul,

doi = "10.1016/0038-1098(90)90349-G",

language = "English",

volume = "75",

pages = "97--100",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Limited",

number = "2",

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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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