Location of gap nodes in the organic superconductors κ-(ET) 2Cu(NCS)2 and κ-(ET)2Cu[N (CN) 2]Br determined by magnetocalorimetry

L. Malone; O. J. Taylor; J. A. Schlueter; A. Carrington

doi:10.1103/PhysRevB.82.014522

Location of gap nodes in the organic superconductors κ-(ET) 2Cu(NCS)2 and κ-(ET)2Cu[N (CN) 2]Br determined by magnetocalorimetry

L. Malone^*, O. J. Taylor, J. A. Schlueter, A. Carrington

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

34 Citations (Scopus)

Abstract

We report specific-heat measurements of the organic superconductors κ- (ET) 2 Cu (NCS) 2 and κ- (ET) 2 Cu [N (CN) 2] Br. When the magnetic field is rotated in the highly conducting planes at low temperature (T0.4K), we observe clear oscillations of specific heat which have a strong fourfold component. The observed strong field and temperature dependence of this fourfold component identifies it as originating from nodes in the superconducting energy gap which point along the in-plane crystal axes (dxy symmetry).

Original language	English
Article number	014522
Journal	Physical Review B: Condensed Matter and Materials Physics
Volume	82
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.82.014522
Publication status	Published - 16 Jul 2010

Access to Document

10.1103/PhysRevB.82.014522

Handle.net

Persistent link

Cite this

@article{eb0a3360cca347d38348e11ddacc8c9a,

title = "Location of gap nodes in the organic superconductors κ-(ET) 2Cu(NCS)2 and κ-(ET)2Cu[N (CN) 2]Br determined by magnetocalorimetry",

abstract = "We report specific-heat measurements of the organic superconductors κ- (ET) 2 Cu (NCS) 2 and κ- (ET) 2 Cu [N (CN) 2] Br. When the magnetic field is rotated in the highly conducting planes at low temperature (T0.4K), we observe clear oscillations of specific heat which have a strong fourfold component. The observed strong field and temperature dependence of this fourfold component identifies it as originating from nodes in the superconducting energy gap which point along the in-plane crystal axes (dxy symmetry).",

author = "L. Malone and Taylor, {O. J.} and Schlueter, {J. A.} and A. Carrington",

year = "2010",

month = jul,

day = "16",

doi = "10.1103/PhysRevB.82.014522",

language = "English",

volume = "82",

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

issn = "1098-0121",

publisher = "American Physical Society (APS)",

number = "1",

}

Location of gap nodes in the organic superconductors κ-(ET) 2Cu(NCS)2 and κ-(ET)2Cu[N (CN) 2]Br determined by magnetocalorimetry. / Malone, L.; Taylor, O. J.; Schlueter, J. A. et al.
In: Physical Review B: Condensed Matter and Materials Physics, Vol. 82, No. 1, 014522, 16.07.2010.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

TY - JOUR

T1 - Location of gap nodes in the organic superconductors κ-(ET) 2Cu(NCS)2 and κ-(ET)2Cu[N (CN) 2]Br determined by magnetocalorimetry

AU - Malone, L.

AU - Taylor, O. J.

AU - Schlueter, J. A.

AU - Carrington, A.

PY - 2010/7/16

Y1 - 2010/7/16

N2 - We report specific-heat measurements of the organic superconductors κ- (ET) 2 Cu (NCS) 2 and κ- (ET) 2 Cu [N (CN) 2] Br. When the magnetic field is rotated in the highly conducting planes at low temperature (T0.4K), we observe clear oscillations of specific heat which have a strong fourfold component. The observed strong field and temperature dependence of this fourfold component identifies it as originating from nodes in the superconducting energy gap which point along the in-plane crystal axes (dxy symmetry).

AB - We report specific-heat measurements of the organic superconductors κ- (ET) 2 Cu (NCS) 2 and κ- (ET) 2 Cu [N (CN) 2] Br. When the magnetic field is rotated in the highly conducting planes at low temperature (T0.4K), we observe clear oscillations of specific heat which have a strong fourfold component. The observed strong field and temperature dependence of this fourfold component identifies it as originating from nodes in the superconducting energy gap which point along the in-plane crystal axes (dxy symmetry).

UR - http://www.scopus.com/inward/record.url?scp=77956528843&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.82.014522

DO - 10.1103/PhysRevB.82.014522

M3 - Article (Academic Journal)

AN - SCOPUS:77956528843

SN - 1098-0121

VL - 82

JO - Physical Review B: Condensed Matter and Materials Physics

JF - Physical Review B: Condensed Matter and Materials Physics

IS - 1

M1 - 014522

ER -

Location of gap nodes in the organic superconductors κ-(ET) 2Cu(NCS)2 and κ-(ET)2Cu[N (CN) 2]Br determined by magnetocalorimetry

Abstract

Access to Document

Handle.net

Other files and links

Fingerprint

PARTNERSHIP FUNDING: NOVEL QUANTUM ORDER IN INTERACTING ELECTRON METALS

Cite this

Location of gap nodes in the organic superconductors κ-(ET) 2Cu(NCS)2 and κ-(ET)2Cu[N (CN) 2]Br determined by magnetocalorimetry

Abstract

Access to Document

Handle.net

Other files and links

Fingerprint

Projects

PARTNERSHIP FUNDING: NOVEL QUANTUM ORDER IN INTERACTING ELECTRON METALS

Cite this