### Abstract

An estimate of the gap Δ_{p} that opens at the Fermi level in a 3/4-filled Hubbard model with alternating hopping integrals is obtained on the basis of weak and strong coupling results. Assuming that this gap will induce a minimum of resistivity at a temperature T_{p}≈Δ_{P}π, we show that the hopping integrals provided by quantum chemistry calculations based on structural data are in reasonable agreement with the experimental resistivity curves if U is the same for all compounds (≈850meV). In particular, very small values can be obtained for the TMTSF series without assuming that the dimerization is itself very small. The discrepancies between this model and the magnetic data are briefly discussed.

Original language | English |
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Title of host publication | Journal De Physique. IV : JP |

Publisher | Publ by Editions de Physique |

Pages | 155-158 |

Number of pages | 4 |

Volume | 3 |

Edition | 2 |

Publication status | Published - Jul 1993 |

Event | Proceedings of the International Workshop on Electronic Crystals (ECRYS 93) - Carry-le-Rouet, Fr Duration: Jun 2 1993 → Jun 4 1993 |

### Other

Other | Proceedings of the International Workshop on Electronic Crystals (ECRYS 93) |
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City | Carry-le-Rouet, Fr |

Period | 6/2/93 → 6/4/93 |

### Fingerprint

### ASJC Scopus subject areas

- Physics and Astronomy(all)

### Cite this

*Journal De Physique. IV : JP*(2 ed., Vol. 3, pp. 155-158). Publ by Editions de Physique.

**One-dimensional electronic properties of the Bechgaard salts.** / Penc, K.; Mila, F.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

*Journal De Physique. IV : JP.*2 edn, vol. 3, Publ by Editions de Physique, pp. 155-158, Proceedings of the International Workshop on Electronic Crystals (ECRYS 93), Carry-le-Rouet, Fr, 6/2/93.

}

TY - CHAP

T1 - One-dimensional electronic properties of the Bechgaard salts

AU - Penc, K.

AU - Mila, F.

PY - 1993/7

Y1 - 1993/7

N2 - An estimate of the gap Δp that opens at the Fermi level in a 3/4-filled Hubbard model with alternating hopping integrals is obtained on the basis of weak and strong coupling results. Assuming that this gap will induce a minimum of resistivity at a temperature Tp≈ΔPπ, we show that the hopping integrals provided by quantum chemistry calculations based on structural data are in reasonable agreement with the experimental resistivity curves if U is the same for all compounds (≈850meV). In particular, very small values can be obtained for the TMTSF series without assuming that the dimerization is itself very small. The discrepancies between this model and the magnetic data are briefly discussed.

AB - An estimate of the gap Δp that opens at the Fermi level in a 3/4-filled Hubbard model with alternating hopping integrals is obtained on the basis of weak and strong coupling results. Assuming that this gap will induce a minimum of resistivity at a temperature Tp≈ΔPπ, we show that the hopping integrals provided by quantum chemistry calculations based on structural data are in reasonable agreement with the experimental resistivity curves if U is the same for all compounds (≈850meV). In particular, very small values can be obtained for the TMTSF series without assuming that the dimerization is itself very small. The discrepancies between this model and the magnetic data are briefly discussed.

UR - http://www.scopus.com/inward/record.url?scp=0343306149&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0343306149&partnerID=8YFLogxK

M3 - Chapter

AN - SCOPUS:0343306149

VL - 3

SP - 155

EP - 158

BT - Journal De Physique. IV : JP

PB - Publ by Editions de Physique

ER -