Magnetic Determination of Ginzburg-Landau Coherence Length for Organic Superconductor k-(BEDT-TTF)2X (X = Cu(NCS)2, Cu[N(CN)2]Br): Effect of Isotope Substitution

Hiroshi Ito; Masashi Watanabe; Yoshio Nogami; Takehiko Ishiguro; Tokutaro Komatsu; Gunzi Saito; Nobuyoshi Hosoito

doi:10.1143/JPSJ.60.3230

Magnetic Determination of Ginzburg-Landau Coherence Length for Organic Superconductor k-(BEDT-TTF)2X (X = Cu(NCS)2, Cu[N(CN)2]Br): Effect of Isotope Substitution

Hiroshi Ito, Masashi Watanabe, Yoshio Nogami, Takehiko Ishiguro, Tokutaro Komatsu, Gunzi Saito, Nobuyoshi Hosoito

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

68 Citations (Scopus)

Abstract

The Ginzburg-Landau coherence lengths are determined from the temperature dependence of the magnetization by fitting measured results with the renormalization theory of the fluctuation developed for layered superconductors. The derived interlayer coherence lengths are 6±2Å and 3.2±0.5Å for k-(BEDT-TTF)2Cu-[N(CN)2]Br and k-(BEDT-TTF)2Cu(NCS)2, respectively, which are remarkably shorter than the interlayer spacing. It is also found that these coherence lengths are virtually unaffected by isotope substitution in BEDT-TTF molecules.

Original language	English
Pages (from-to)	3230-3233
Number of pages	4
Journal	journal of the physical society of japan
Volume	60
Issue number	10
DOIs	https://doi.org/10.1143/JPSJ.60.3230
Publication status	Published - Oct 1991
Externally published	Yes

Keywords

GL coherence length
diamagnetism
isotope effect
organic superconductor
superconductivity fluctuation
two-dimensionality

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.60.3230

Cite this

Magnetic Determination of Ginzburg-Landau Coherence Length for Organic Superconductor k-(BEDT-TTF)2X (X = Cu(NCS)2, Cu[N(CN)2]Br) : Effect of Isotope Substitution. / Ito, Hiroshi; Watanabe, Masashi; Nogami, Yoshio et al.

In: journal of the physical society of japan, Vol. 60, No. 10, 10.1991, p. 3230-3233.

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

@article{774dea27ba5342f0a4c5cbfe4bd5913c,

title = "Magnetic Determination of Ginzburg-Landau Coherence Length for Organic Superconductor k-(BEDT-TTF)2X (X = Cu(NCS)2, Cu[N(CN)2]Br): Effect of Isotope Substitution",

abstract = "The Ginzburg-Landau coherence lengths are determined from the temperature dependence of the magnetization by fitting measured results with the renormalization theory of the fluctuation developed for layered superconductors. The derived interlayer coherence lengths are 6±2{\AA} and 3.2±0.5{\AA} for k-(BEDT-TTF)2Cu-[N(CN)2]Br and k-(BEDT-TTF)2Cu(NCS)2, respectively, which are remarkably shorter than the interlayer spacing. It is also found that these coherence lengths are virtually unaffected by isotope substitution in BEDT-TTF molecules.",

keywords = "GL coherence length, diamagnetism, isotope effect, organic superconductor, superconductivity fluctuation, two-dimensionality",

author = "Hiroshi Ito and Masashi Watanabe and Yoshio Nogami and Takehiko Ishiguro and Tokutaro Komatsu and Gunzi Saito and Nobuyoshi Hosoito",

year = "1991",

month = oct,

doi = "10.1143/JPSJ.60.3230",

language = "English",

volume = "60",

pages = "3230--3233",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "10",

}

TY - JOUR

T1 - Magnetic Determination of Ginzburg-Landau Coherence Length for Organic Superconductor k-(BEDT-TTF)2X (X = Cu(NCS)2, Cu[N(CN)2]Br)

T2 - Effect of Isotope Substitution

AU - Ito, Hiroshi

AU - Watanabe, Masashi

AU - Nogami, Yoshio

AU - Ishiguro, Takehiko

AU - Komatsu, Tokutaro

AU - Saito, Gunzi

AU - Hosoito, Nobuyoshi

PY - 1991/10

Y1 - 1991/10

N2 - The Ginzburg-Landau coherence lengths are determined from the temperature dependence of the magnetization by fitting measured results with the renormalization theory of the fluctuation developed for layered superconductors. The derived interlayer coherence lengths are 6±2Å and 3.2±0.5Å for k-(BEDT-TTF)2Cu-[N(CN)2]Br and k-(BEDT-TTF)2Cu(NCS)2, respectively, which are remarkably shorter than the interlayer spacing. It is also found that these coherence lengths are virtually unaffected by isotope substitution in BEDT-TTF molecules.

AB - The Ginzburg-Landau coherence lengths are determined from the temperature dependence of the magnetization by fitting measured results with the renormalization theory of the fluctuation developed for layered superconductors. The derived interlayer coherence lengths are 6±2Å and 3.2±0.5Å for k-(BEDT-TTF)2Cu-[N(CN)2]Br and k-(BEDT-TTF)2Cu(NCS)2, respectively, which are remarkably shorter than the interlayer spacing. It is also found that these coherence lengths are virtually unaffected by isotope substitution in BEDT-TTF molecules.

KW - GL coherence length

KW - diamagnetism

KW - isotope effect

KW - organic superconductor

KW - superconductivity fluctuation

KW - two-dimensionality

UR - http://www.scopus.com/inward/record.url?scp=0000563120&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000563120&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.60.3230

DO - 10.1143/JPSJ.60.3230

M3 - Article

AN - SCOPUS:0000563120

VL - 60

SP - 3230

EP - 3233

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 10

ER -

Magnetic Determination of Ginzburg-Landau Coherence Length for Organic Superconductor k-(BEDT-TTF)2X (X = Cu(NCS)2, Cu[N(CN)2]Br): Effect of Isotope Substitution

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this