Abstract
We discuss a novel experimental method to study mass renormalization in quasi-one-dimensional (Q1D) conductors having open sheet-like Fermi surfaces. It is well known that the detailed shape of the sheet-like Fermi surface could be studied by using magetoresistance angular effects, which appear on the interlayer magnetoresistance as a function of magnetic field orientations. We have taken notice of the effect of additional electric fields on the magnetoresistance angular effects. The basic concept is as the followings. In the Q1D system, the interlayer electric field can be replaced with the effective magnetic field, which gives the same Lorentz force to an electron, for each Fermi sheet. So, the angular effects due to different Fermi sheets must show different shifts under electric fields. From this shift, we can directly estimate the Fermi velocity and/or the electron mass in the Q1D conductors. We have numerically checked this electric field effect, and have also experimentally confirmed the electric field effect in organic conductors (TMTSF)2ClO4 and α-(BEDT-TTF)2KHg(SCN)4, which have Q1D electron systems at low temperatures.
| Original language | English |
|---|---|
| Pages (from-to) | 1267-1271 |
| Number of pages | 5 |
| Journal | Journal of Physics and Chemistry of Solids |
| Volume | 63 |
| Issue number | 6-8 |
| DOIs | |
| Publication status | Published - Jun 2002 |
| Externally published | Yes |
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Keywords
- A. Organic compounds
- D. Electronic structure
- D. Fermi surface
- D. Transport properties
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Electric field effect on magnetoresistance angular effects : New tool to study mass renormalization in quasi-one-dimensional organic conductors. / Kobayashi, Kaya; Ohmichi, Eiji; Osada, Toshihito.
In: Journal of Physics and Chemistry of Solids, Vol. 63, No. 6-8, 06.2002, p. 1267-1271.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electric field effect on magnetoresistance angular effects
T2 - New tool to study mass renormalization in quasi-one-dimensional organic conductors
AU - Kobayashi, Kaya
AU - Ohmichi, Eiji
AU - Osada, Toshihito
PY - 2002/6
Y1 - 2002/6
N2 - We discuss a novel experimental method to study mass renormalization in quasi-one-dimensional (Q1D) conductors having open sheet-like Fermi surfaces. It is well known that the detailed shape of the sheet-like Fermi surface could be studied by using magetoresistance angular effects, which appear on the interlayer magnetoresistance as a function of magnetic field orientations. We have taken notice of the effect of additional electric fields on the magnetoresistance angular effects. The basic concept is as the followings. In the Q1D system, the interlayer electric field can be replaced with the effective magnetic field, which gives the same Lorentz force to an electron, for each Fermi sheet. So, the angular effects due to different Fermi sheets must show different shifts under electric fields. From this shift, we can directly estimate the Fermi velocity and/or the electron mass in the Q1D conductors. We have numerically checked this electric field effect, and have also experimentally confirmed the electric field effect in organic conductors (TMTSF)2ClO4 and α-(BEDT-TTF)2KHg(SCN)4, which have Q1D electron systems at low temperatures.
AB - We discuss a novel experimental method to study mass renormalization in quasi-one-dimensional (Q1D) conductors having open sheet-like Fermi surfaces. It is well known that the detailed shape of the sheet-like Fermi surface could be studied by using magetoresistance angular effects, which appear on the interlayer magnetoresistance as a function of magnetic field orientations. We have taken notice of the effect of additional electric fields on the magnetoresistance angular effects. The basic concept is as the followings. In the Q1D system, the interlayer electric field can be replaced with the effective magnetic field, which gives the same Lorentz force to an electron, for each Fermi sheet. So, the angular effects due to different Fermi sheets must show different shifts under electric fields. From this shift, we can directly estimate the Fermi velocity and/or the electron mass in the Q1D conductors. We have numerically checked this electric field effect, and have also experimentally confirmed the electric field effect in organic conductors (TMTSF)2ClO4 and α-(BEDT-TTF)2KHg(SCN)4, which have Q1D electron systems at low temperatures.
KW - A. Organic compounds
KW - D. Electronic structure
KW - D. Fermi surface
KW - D. Transport properties
UR - http://www.scopus.com/inward/record.url?scp=0036602553&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036602553&partnerID=8YFLogxK
U2 - 10.1016/S0022-3697(02)00113-0
DO - 10.1016/S0022-3697(02)00113-0
M3 - Article
AN - SCOPUS:0036602553
VL - 63
SP - 1267
EP - 1271
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
SN - 0022-3697
IS - 6-8
ER -