Abstract
We report direct observations of anomalous magnetic-field and temperature dependences of the Shubnikov–de Haas oscillations in the organic superconductor γ″-(BEDT-TTF)2SF5CH2CF2SO3. Unlike other BEDT-TTF based organic superconductors, a nonmetallic temperature dependence of the background magnetoresistance is clearly observed. It is speculated that the nonmetallic behavior may arise from a partial nesting of the open orbits, similar to the field-induced density wave in the quasi-one-dimensional systems or a charge localization. The analysis of the magnetoresistance oscillations are found to deviate from the conventional Lifshitz-Kosevich description at high field and low temperatures.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 6296-6299 |
| Number of pages | 4 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 60 |
| Issue number | 9 |
| DOIs | |
| State | Published - Jan 1 1999 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Anomalous low-temperature and high-field magnetoresistance in the organic superconductor γ″-(BEDT-TTF)2SF5CH2CF2SO3 . / Zuo, Fulin; Su, X.; Zhang, P.; Brooks, J. S.; Wosnitza, J.; Schlueter, J. A.; Williams, Jack M.; Nixon, P. G.; Winter, R. W.; Gard, G. L.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 60, No. 9, 01.01.1999, p. 6296-6299.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Anomalous low-temperature and high-field magnetoresistance in the organic superconductor γ″-(BEDT-TTF)2SF5CH2CF2SO3
AU - Zuo, Fulin
AU - Su, X.
AU - Zhang, P.
AU - Brooks, J. S.
AU - Wosnitza, J.
AU - Schlueter, J. A.
AU - Williams, Jack M.
AU - Nixon, P. G.
AU - Winter, R. W.
AU - Gard, G. L.
PY - 1999/1/1
Y1 - 1999/1/1
N2 - We report direct observations of anomalous magnetic-field and temperature dependences of the Shubnikov–de Haas oscillations in the organic superconductor γ″-(BEDT-TTF)2SF5CH2CF2SO3. Unlike other BEDT-TTF based organic superconductors, a nonmetallic temperature dependence of the background magnetoresistance is clearly observed. It is speculated that the nonmetallic behavior may arise from a partial nesting of the open orbits, similar to the field-induced density wave in the quasi-one-dimensional systems or a charge localization. The analysis of the magnetoresistance oscillations are found to deviate from the conventional Lifshitz-Kosevich description at high field and low temperatures.
AB - We report direct observations of anomalous magnetic-field and temperature dependences of the Shubnikov–de Haas oscillations in the organic superconductor γ″-(BEDT-TTF)2SF5CH2CF2SO3. Unlike other BEDT-TTF based organic superconductors, a nonmetallic temperature dependence of the background magnetoresistance is clearly observed. It is speculated that the nonmetallic behavior may arise from a partial nesting of the open orbits, similar to the field-induced density wave in the quasi-one-dimensional systems or a charge localization. The analysis of the magnetoresistance oscillations are found to deviate from the conventional Lifshitz-Kosevich description at high field and low temperatures.
UR - http://www.scopus.com/inward/record.url?scp=0000008621&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000008621&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.60.6296
DO - 10.1103/PhysRevB.60.6296
M3 - Article
VL - 60
SP - 6296
EP - 6299
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 9
ER -