Possibilities of molecular magnetic metals and high Tc superconductors in field effect transistor configurations

Takashi Kawakami, Yasutaka Kitagawa, Fumitake Matsuoka, Yoshifumi Yamashita, Hiroshi Isobe, Hidemi Nagao, Kizashi Yamaguchi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Ab initio molecular orbital (MO) and density functional theory (DFT) calculations of neutral and anion radical states of anthracene are performed to elucidate their vibrational frequencies. They are used to calculate the transition temperatures of superconductivity of these species in the field effect transistor (FET) configuration on the basis of the electron-phonon coupling mechanism. Anderson and Kondo lattice models are also examined in relation to possible electronic phases of segregated columns of donors or acceptors with radical groups, and conducting polymers with radical groups in the FET configuration. The effective exchange interactions within conduction electrons and localized spins are calculated by theoretical methods. The electron or hole doping into molecular crystals and/or thin films of these systems in the FET configuration are studied in relation to possible magnetic states, Kondo and dense Kondo states, and superconducting states via spin fluctuations. The cooperative mechanism between the electron-phonon and spin fluctuation is also discussed to search the high Tc superconductor. Finally, the magnetic modifications of helical conducting polymers and DNA chains with chiral spin sources are discussed in relation to possibility of molecular solenoid, which may be generated in the FET configuration.

Original languageEnglish
Pages (from-to)619-635
Number of pages17
JournalInternational Journal of Quantum Chemistry
Volume85
Issue number4-5
DOIs
Publication statusPublished - Nov 15 2001
Externally publishedYes

Fingerprint

magnetic metals
Field effect transistors
Superconducting materials
field effect transistors
Metals
Spin fluctuations
Electrons
Conducting polymers
conducting polymers
configurations
Molecular crystals
electrons
Solenoids
Exchange interactions
Vibrational spectra
Molecular orbitals
solenoids
anthracene
Superconductivity
conduction electrons

Keywords

  • DNA chain
  • FET configuration
  • Organic magnetic metals
  • Organic solenoid
  • Organic superconductors

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Possibilities of molecular magnetic metals and high Tc superconductors in field effect transistor configurations. / Kawakami, Takashi; Kitagawa, Yasutaka; Matsuoka, Fumitake; Yamashita, Yoshifumi; Isobe, Hiroshi; Nagao, Hidemi; Yamaguchi, Kizashi.

In: International Journal of Quantum Chemistry, Vol. 85, No. 4-5, 15.11.2001, p. 619-635.

Research output: Contribution to journalArticle

Kawakami, Takashi ; Kitagawa, Yasutaka ; Matsuoka, Fumitake ; Yamashita, Yoshifumi ; Isobe, Hiroshi ; Nagao, Hidemi ; Yamaguchi, Kizashi. / Possibilities of molecular magnetic metals and high Tc superconductors in field effect transistor configurations. In: International Journal of Quantum Chemistry. 2001 ; Vol. 85, No. 4-5. pp. 619-635.
@article{e2db3c67a2ee4c928a1fb41e8458d25d,
title = "Possibilities of molecular magnetic metals and high Tc superconductors in field effect transistor configurations",
abstract = "Ab initio molecular orbital (MO) and density functional theory (DFT) calculations of neutral and anion radical states of anthracene are performed to elucidate their vibrational frequencies. They are used to calculate the transition temperatures of superconductivity of these species in the field effect transistor (FET) configuration on the basis of the electron-phonon coupling mechanism. Anderson and Kondo lattice models are also examined in relation to possible electronic phases of segregated columns of donors or acceptors with radical groups, and conducting polymers with radical groups in the FET configuration. The effective exchange interactions within conduction electrons and localized spins are calculated by theoretical methods. The electron or hole doping into molecular crystals and/or thin films of these systems in the FET configuration are studied in relation to possible magnetic states, Kondo and dense Kondo states, and superconducting states via spin fluctuations. The cooperative mechanism between the electron-phonon and spin fluctuation is also discussed to search the high Tc superconductor. Finally, the magnetic modifications of helical conducting polymers and DNA chains with chiral spin sources are discussed in relation to possibility of molecular solenoid, which may be generated in the FET configuration.",
keywords = "DNA chain, FET configuration, Organic magnetic metals, Organic solenoid, Organic superconductors",
author = "Takashi Kawakami and Yasutaka Kitagawa and Fumitake Matsuoka and Yoshifumi Yamashita and Hiroshi Isobe and Hidemi Nagao and Kizashi Yamaguchi",
year = "2001",
month = "11",
day = "15",
doi = "10.1002/qua.1506",
language = "English",
volume = "85",
pages = "619--635",
journal = "International Journal of Quantum Chemistry",
issn = "0020-7608",
publisher = "John Wiley and Sons Inc.",
number = "4-5",

}

TY - JOUR

T1 - Possibilities of molecular magnetic metals and high Tc superconductors in field effect transistor configurations

AU - Kawakami, Takashi

AU - Kitagawa, Yasutaka

AU - Matsuoka, Fumitake

AU - Yamashita, Yoshifumi

AU - Isobe, Hiroshi

AU - Nagao, Hidemi

AU - Yamaguchi, Kizashi

PY - 2001/11/15

Y1 - 2001/11/15

N2 - Ab initio molecular orbital (MO) and density functional theory (DFT) calculations of neutral and anion radical states of anthracene are performed to elucidate their vibrational frequencies. They are used to calculate the transition temperatures of superconductivity of these species in the field effect transistor (FET) configuration on the basis of the electron-phonon coupling mechanism. Anderson and Kondo lattice models are also examined in relation to possible electronic phases of segregated columns of donors or acceptors with radical groups, and conducting polymers with radical groups in the FET configuration. The effective exchange interactions within conduction electrons and localized spins are calculated by theoretical methods. The electron or hole doping into molecular crystals and/or thin films of these systems in the FET configuration are studied in relation to possible magnetic states, Kondo and dense Kondo states, and superconducting states via spin fluctuations. The cooperative mechanism between the electron-phonon and spin fluctuation is also discussed to search the high Tc superconductor. Finally, the magnetic modifications of helical conducting polymers and DNA chains with chiral spin sources are discussed in relation to possibility of molecular solenoid, which may be generated in the FET configuration.

AB - Ab initio molecular orbital (MO) and density functional theory (DFT) calculations of neutral and anion radical states of anthracene are performed to elucidate their vibrational frequencies. They are used to calculate the transition temperatures of superconductivity of these species in the field effect transistor (FET) configuration on the basis of the electron-phonon coupling mechanism. Anderson and Kondo lattice models are also examined in relation to possible electronic phases of segregated columns of donors or acceptors with radical groups, and conducting polymers with radical groups in the FET configuration. The effective exchange interactions within conduction electrons and localized spins are calculated by theoretical methods. The electron or hole doping into molecular crystals and/or thin films of these systems in the FET configuration are studied in relation to possible magnetic states, Kondo and dense Kondo states, and superconducting states via spin fluctuations. The cooperative mechanism between the electron-phonon and spin fluctuation is also discussed to search the high Tc superconductor. Finally, the magnetic modifications of helical conducting polymers and DNA chains with chiral spin sources are discussed in relation to possibility of molecular solenoid, which may be generated in the FET configuration.

KW - DNA chain

KW - FET configuration

KW - Organic magnetic metals

KW - Organic solenoid

KW - Organic superconductors

UR - http://www.scopus.com/inward/record.url?scp=0035890526&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035890526&partnerID=8YFLogxK

U2 - 10.1002/qua.1506

DO - 10.1002/qua.1506

M3 - Article

AN - SCOPUS:0035890526

VL - 85

SP - 619

EP - 635

JO - International Journal of Quantum Chemistry

JF - International Journal of Quantum Chemistry

SN - 0020-7608

IS - 4-5

ER -