TY - JOUR
T1 - Fermi surface study of organic conductors using a magneto-optical measurement under high magnetic fields
AU - Kimata, M.
AU - Ohta, H.
AU - Koyama, K.
AU - Motokawa, M.
AU - Kondo, R.
AU - Kagoshima, S.
AU - Tanaka, H.
AU - Tokumoto, M.
AU - Kobayashi, H.
AU - Kobayashi, A.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - Magneto-optical measurements have been performed in organic conductors β′′-(BEDT-TTF)2CsCd(SCN)4 and λ-(BETS)2FeCl4. Although the zero magnetic field ground state of β′′-(BEDT-TTF)2CsCd(SCN) 4is considered as the density wave state, periodic orbit resonances (POR's) attributed to quasi-one-dimensional (Q1D) and quasi-two-dimensional (Q2D) Fermi surfaces (FS's) have been observed above 6 T. The existence of these FS's are predicted by the band calculation based on room temperature lattice parameters. This result may suggest the destruction of the density wave state at 6 T, and the primal metallic state revives in the high field phase above 6 T. In the case of λ-(BETS)2FeCl4, large changes of the transmission intensity of electromagnetic waves around 10 T, which correspond to the insulator-metal transition, have been observed. However, no POR-like resonance has been observed. This may be due to the restriction of the observed frequency-field region.
AB - Magneto-optical measurements have been performed in organic conductors β′′-(BEDT-TTF)2CsCd(SCN)4 and λ-(BETS)2FeCl4. Although the zero magnetic field ground state of β′′-(BEDT-TTF)2CsCd(SCN) 4is considered as the density wave state, periodic orbit resonances (POR's) attributed to quasi-one-dimensional (Q1D) and quasi-two-dimensional (Q2D) Fermi surfaces (FS's) have been observed above 6 T. The existence of these FS's are predicted by the band calculation based on room temperature lattice parameters. This result may suggest the destruction of the density wave state at 6 T, and the primal metallic state revives in the high field phase above 6 T. In the case of λ-(BETS)2FeCl4, large changes of the transmission intensity of electromagnetic waves around 10 T, which correspond to the insulator-metal transition, have been observed. However, no POR-like resonance has been observed. This may be due to the restriction of the observed frequency-field region.
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U2 - 10.1088/1742-6596/51/1/084
DO - 10.1088/1742-6596/51/1/084
M3 - Article
AN - SCOPUS:33947678662
SN - 1742-6588
VL - 51
SP - 359
EP - 362
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 084
ER -