101Ru Knight-shift measurement of Sr2 RuO4 in low fields applied parallel to the RuO2 plane

Hiroshi Murakawa, Kenji Ishida, Kentaro Kitagawa, Z. Q. Mao, Yoshiteru Maeno

Research output: Contribution to journalArticle

Abstract

We have measured 101Ru Knight shift (101K) in the spin triplet superconductor Sr2 RuO4 in various magnetic fields applied parallel and perpendicular to the RuO2 plane to determine the spin direction of the Cooper pair. We measured temperature dependence of 101K in 0.15 and 0.055 T parallel to the RuO2 plane using nuclear-quadrupole-resonance (NQR) technique. We found that 101K is invariant with temperature in both fields on passing through the superconducting (SC) transition temperature. These results indicate that the spin susceptibility parallel to the RuO2 plane does not change in the field greater than 0.055 T, suggesting that the SC d-vector is along the c-axis when the magnetic field greater than 0.055 T is applied along to the RuO2 plane. The possible spin state in magnetic fields is discussed on the basis of the Knight-shift measurements so far.

Original languageEnglish (US)
Pages (from-to)548-550
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 1
DOIs
StatePublished - Mar 1 2007

Fingerprint

Magnetic fields
nuclear magnetic resonance
Nuclear quadrupole resonance
magnetic fields
Superconducting materials
Superconducting transition temperature
nuclear quadrupole resonance
Temperature
transition temperature
magnetic permeability
temperature dependence
temperature
Direction compound

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Murakawa, Hiroshi ; Ishida, Kenji ; Kitagawa, Kentaro ; Mao, Z. Q. ; Maeno, Yoshiteru. / 101Ru Knight-shift measurement of Sr2 RuO4 in low fields applied parallel to the RuO2 plane. In: Journal of Magnetism and Magnetic Materials. 2007 ; Vol. 310, No. 2 SUPPL. PART 1. pp. 548-550.
@article{d0fff8e5005f40a99e8bc7af02d7a413,
title = "101Ru Knight-shift measurement of Sr2 RuO4 in low fields applied parallel to the RuO2 plane",
abstract = "We have measured 101Ru Knight shift (101K) in the spin triplet superconductor Sr2 RuO4 in various magnetic fields applied parallel and perpendicular to the RuO2 plane to determine the spin direction of the Cooper pair. We measured temperature dependence of 101K in 0.15 and 0.055 T parallel to the RuO2 plane using nuclear-quadrupole-resonance (NQR) technique. We found that 101K is invariant with temperature in both fields on passing through the superconducting (SC) transition temperature. These results indicate that the spin susceptibility parallel to the RuO2 plane does not change in the field greater than 0.055 T, suggesting that the SC d-vector is along the c-axis when the magnetic field greater than 0.055 T is applied along to the RuO2 plane. The possible spin state in magnetic fields is discussed on the basis of the Knight-shift measurements so far.",
author = "Hiroshi Murakawa and Kenji Ishida and Kentaro Kitagawa and Mao, {Z. Q.} and Yoshiteru Maeno",
year = "2007",
month = "3",
day = "1",
doi = "10.1016/j.jmmm.2006.10.143",
language = "English (US)",
volume = "310",
pages = "548--550",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",
number = "2 SUPPL. PART 1",

}

101Ru Knight-shift measurement of Sr2 RuO4 in low fields applied parallel to the RuO2 plane. / Murakawa, Hiroshi; Ishida, Kenji; Kitagawa, Kentaro; Mao, Z. Q.; Maeno, Yoshiteru.

In: Journal of Magnetism and Magnetic Materials, Vol. 310, No. 2 SUPPL. PART 1, 01.03.2007, p. 548-550.

Research output: Contribution to journalArticle

TY - JOUR

T1 - 101Ru Knight-shift measurement of Sr2 RuO4 in low fields applied parallel to the RuO2 plane

AU - Murakawa, Hiroshi

AU - Ishida, Kenji

AU - Kitagawa, Kentaro

AU - Mao, Z. Q.

AU - Maeno, Yoshiteru

PY - 2007/3/1

Y1 - 2007/3/1

N2 - We have measured 101Ru Knight shift (101K) in the spin triplet superconductor Sr2 RuO4 in various magnetic fields applied parallel and perpendicular to the RuO2 plane to determine the spin direction of the Cooper pair. We measured temperature dependence of 101K in 0.15 and 0.055 T parallel to the RuO2 plane using nuclear-quadrupole-resonance (NQR) technique. We found that 101K is invariant with temperature in both fields on passing through the superconducting (SC) transition temperature. These results indicate that the spin susceptibility parallel to the RuO2 plane does not change in the field greater than 0.055 T, suggesting that the SC d-vector is along the c-axis when the magnetic field greater than 0.055 T is applied along to the RuO2 plane. The possible spin state in magnetic fields is discussed on the basis of the Knight-shift measurements so far.

AB - We have measured 101Ru Knight shift (101K) in the spin triplet superconductor Sr2 RuO4 in various magnetic fields applied parallel and perpendicular to the RuO2 plane to determine the spin direction of the Cooper pair. We measured temperature dependence of 101K in 0.15 and 0.055 T parallel to the RuO2 plane using nuclear-quadrupole-resonance (NQR) technique. We found that 101K is invariant with temperature in both fields on passing through the superconducting (SC) transition temperature. These results indicate that the spin susceptibility parallel to the RuO2 plane does not change in the field greater than 0.055 T, suggesting that the SC d-vector is along the c-axis when the magnetic field greater than 0.055 T is applied along to the RuO2 plane. The possible spin state in magnetic fields is discussed on the basis of the Knight-shift measurements so far.

UR - http://www.scopus.com/inward/record.url?scp=33847310367&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33847310367&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2006.10.143

DO - 10.1016/j.jmmm.2006.10.143

M3 - Article

AN - SCOPUS:33847310367

VL - 310

SP - 548

EP - 550

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 2 SUPPL. PART 1

ER -