Charge ordering and pressure-induced superconductivity in β″ - (DODHT)2 P F6

H. Nishikawa; Y. Sato; K. Kikuchi; T. Kodama; I. Ikemoto; J. Yamada; H. Oshio; R. Kondo; S. Kagoshima

doi:10.1103/PhysRevB.72.052510

Charge ordering and pressure-induced superconductivity in β″ - (DODHT)2 P F6

H. Nishikawa, Y. Sato, K. Kikuchi, T. Kodama, I. Ikemoto, J. Yamada, H. Oshio, R. Kondo, S. Kagoshima

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

Transport measurements of a pressure-induced organic superconductor, β″ - (DODHT)2 P F6 [DODHT= (1,4-dioxane-2,3-diyldithio) dihydrotetrathiafulvalene], were performed under various pressures to obtain a pressure-temperature phase diagram. The pressure application of 13.2 kbar induced superconductivity at 2.3 K. Due to a fractional existence of superconductivity, a resistive state was observed with decreasing temperature in a narrow pressure range above 13.2 kbar. X-ray and magnetic measurements at ambient pressure revealed that the insulating state has a charge disproportionation, or a charge ordering (CO) state, with stripes along the molecular side-by-side direction. These results suggest that the charge fluctuation may play a crucial role in the superconductivity in β″ - (DODHT)2 P F6.

Original language	English
Article number	052510
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	72
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.72.052510
Publication status	Published - Aug 1 2005
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.72.052510

Cite this

@article{f09c7ee66b28418cb9876ad5258c30f9,

title = "Charge ordering and pressure-induced superconductivity in β″ - (DODHT)2 P F6",

abstract = "Transport measurements of a pressure-induced organic superconductor, β″ - (DODHT)2 P F6 [DODHT= (1,4-dioxane-2,3-diyldithio) dihydrotetrathiafulvalene], were performed under various pressures to obtain a pressure-temperature phase diagram. The pressure application of 13.2 kbar induced superconductivity at 2.3 K. Due to a fractional existence of superconductivity, a resistive state was observed with decreasing temperature in a narrow pressure range above 13.2 kbar. X-ray and magnetic measurements at ambient pressure revealed that the insulating state has a charge disproportionation, or a charge ordering (CO) state, with stripes along the molecular side-by-side direction. These results suggest that the charge fluctuation may play a crucial role in the superconductivity in β″ - (DODHT)2 P F6.",

author = "H. Nishikawa and Y. Sato and K. Kikuchi and T. Kodama and I. Ikemoto and J. Yamada and H. Oshio and R. Kondo and S. Kagoshima",

year = "2005",

month = aug,

day = "1",

doi = "10.1103/PhysRevB.72.052510",

language = "English",

volume = "72",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "5",

}

TY - JOUR

T1 - Charge ordering and pressure-induced superconductivity in β″ - (DODHT)2 P F6

AU - Nishikawa, H.

AU - Sato, Y.

AU - Kikuchi, K.

AU - Kodama, T.

AU - Ikemoto, I.

AU - Yamada, J.

AU - Oshio, H.

AU - Kondo, R.

AU - Kagoshima, S.

PY - 2005/8/1

Y1 - 2005/8/1

N2 - Transport measurements of a pressure-induced organic superconductor, β″ - (DODHT)2 P F6 [DODHT= (1,4-dioxane-2,3-diyldithio) dihydrotetrathiafulvalene], were performed under various pressures to obtain a pressure-temperature phase diagram. The pressure application of 13.2 kbar induced superconductivity at 2.3 K. Due to a fractional existence of superconductivity, a resistive state was observed with decreasing temperature in a narrow pressure range above 13.2 kbar. X-ray and magnetic measurements at ambient pressure revealed that the insulating state has a charge disproportionation, or a charge ordering (CO) state, with stripes along the molecular side-by-side direction. These results suggest that the charge fluctuation may play a crucial role in the superconductivity in β″ - (DODHT)2 P F6.

AB - Transport measurements of a pressure-induced organic superconductor, β″ - (DODHT)2 P F6 [DODHT= (1,4-dioxane-2,3-diyldithio) dihydrotetrathiafulvalene], were performed under various pressures to obtain a pressure-temperature phase diagram. The pressure application of 13.2 kbar induced superconductivity at 2.3 K. Due to a fractional existence of superconductivity, a resistive state was observed with decreasing temperature in a narrow pressure range above 13.2 kbar. X-ray and magnetic measurements at ambient pressure revealed that the insulating state has a charge disproportionation, or a charge ordering (CO) state, with stripes along the molecular side-by-side direction. These results suggest that the charge fluctuation may play a crucial role in the superconductivity in β″ - (DODHT)2 P F6.

UR - http://www.scopus.com/inward/record.url?scp=33644945383&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33644945383&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.72.052510

DO - 10.1103/PhysRevB.72.052510

M3 - Article

AN - SCOPUS:33644945383

SN - 1098-0121

VL - 72

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 5

M1 - 052510

ER -

Charge ordering and pressure-induced superconductivity in β″ - (DODHT)2 P F6

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this