Abstract
In order to investigate the Fermi surface of the quasi-two dimensional (Q2D) organic superconductor {kappa}-(BETS){sub 2}FeBr{sub 4}, the Shubnikov-de Haas (SdH) oscillation and the angular-dependent magnetoresistance oscillation (AMRO) have been measured. In the antiferromagnetic (AF) state, we observed the SdH oscillation with the low frequency of about 62 T that has not been ever reported. This new frequency can be ascribed to a small pocket formed by the reconstruction of the Fermi surface (FS) due to the long range AF order. In the AMRO, clear periodic oscillation as a function of tan{theta} was found. The oscillation shows the presence of a 2D FS as predicted by band calculations. The analyses of the periodicity indicate that the cross-section of the FS has an elliptic shape. In the magnetic field almost parallel to the layers, a peak in the resistance is observed, suggesting the coherent transport in the interlayer direction.
Citation Formats
Konoike, T, Fujiwara, H, Zhang, B, Kobayashi, H, Nishimura, M, Yasuzuka, S, Enomoto, K, and Uji, S.
Fermi surface in magnetic-field-induced superconductor {kappa}-(BETS){sub 2}FeBr{sub 4}.
Netherlands: N. p.,
2004.
Web.
doi:10.1016/j.physc.2003.11.068.
Konoike, T, Fujiwara, H, Zhang, B, Kobayashi, H, Nishimura, M, Yasuzuka, S, Enomoto, K, & Uji, S.
Fermi surface in magnetic-field-induced superconductor {kappa}-(BETS){sub 2}FeBr{sub 4}.
Netherlands.
https://doi.org/10.1016/j.physc.2003.11.068
Konoike, T, Fujiwara, H, Zhang, B, Kobayashi, H, Nishimura, M, Yasuzuka, S, Enomoto, K, and Uji, S.
2004.
"Fermi surface in magnetic-field-induced superconductor {kappa}-(BETS){sub 2}FeBr{sub 4}."
Netherlands.
https://doi.org/10.1016/j.physc.2003.11.068.
@misc{etde_20618632,
title = {Fermi surface in magnetic-field-induced superconductor {kappa}-(BETS){sub 2}FeBr{sub 4}}
author = {Konoike, T, Fujiwara, H, Zhang, B, Kobayashi, H, Nishimura, M, Yasuzuka, S, Enomoto, K, and Uji, S}
abstractNote = {In order to investigate the Fermi surface of the quasi-two dimensional (Q2D) organic superconductor {kappa}-(BETS){sub 2}FeBr{sub 4}, the Shubnikov-de Haas (SdH) oscillation and the angular-dependent magnetoresistance oscillation (AMRO) have been measured. In the antiferromagnetic (AF) state, we observed the SdH oscillation with the low frequency of about 62 T that has not been ever reported. This new frequency can be ascribed to a small pocket formed by the reconstruction of the Fermi surface (FS) due to the long range AF order. In the AMRO, clear periodic oscillation as a function of tan{theta} was found. The oscillation shows the presence of a 2D FS as predicted by band calculations. The analyses of the periodicity indicate that the cross-section of the FS has an elliptic shape. In the magnetic field almost parallel to the layers, a peak in the resistance is observed, suggesting the coherent transport in the interlayer direction.}
doi = {10.1016/j.physc.2003.11.068}
journal = []
issue = {1-2}
volume = {412-414}
journal type = {AC}
place = {Netherlands}
year = {2004}
month = {Oct}
}
title = {Fermi surface in magnetic-field-induced superconductor {kappa}-(BETS){sub 2}FeBr{sub 4}}
author = {Konoike, T, Fujiwara, H, Zhang, B, Kobayashi, H, Nishimura, M, Yasuzuka, S, Enomoto, K, and Uji, S}
abstractNote = {In order to investigate the Fermi surface of the quasi-two dimensional (Q2D) organic superconductor {kappa}-(BETS){sub 2}FeBr{sub 4}, the Shubnikov-de Haas (SdH) oscillation and the angular-dependent magnetoresistance oscillation (AMRO) have been measured. In the antiferromagnetic (AF) state, we observed the SdH oscillation with the low frequency of about 62 T that has not been ever reported. This new frequency can be ascribed to a small pocket formed by the reconstruction of the Fermi surface (FS) due to the long range AF order. In the AMRO, clear periodic oscillation as a function of tan{theta} was found. The oscillation shows the presence of a 2D FS as predicted by band calculations. The analyses of the periodicity indicate that the cross-section of the FS has an elliptic shape. In the magnetic field almost parallel to the layers, a peak in the resistance is observed, suggesting the coherent transport in the interlayer direction.}
doi = {10.1016/j.physc.2003.11.068}
journal = []
issue = {1-2}
volume = {412-414}
journal type = {AC}
place = {Netherlands}
year = {2004}
month = {Oct}
}