Magnetic-field effects on the size of vortices below the surface of NbSe2 detected using low energy β-NMR

Z. Salman; D. Wang; K. H. Chow; M. D. Hossain; S. R. Kreitzman; T. A. Keeler; C. D.P. Levy; W. A. MacFarlane; R. I. Miller; G. D. Morris; T. J. Parolin; H. Saadaoui; M. Smadella; R. F. Kiefl

doi:10.1103/PhysRevLett.98.167001

Magnetic-field effects on the size of vortices below the surface of NbSe2 detected using low energy β-NMR

Z. Salman^*, D. Wang, K. H. Chow, M. D. Hossain, S. R. Kreitzman, T. A. Keeler, C. D.P. Levy, W. A. MacFarlane, R. I. Miller, G. D. Morris, T. J. Parolin, H. Saadaoui, M. Smadella, R. F. Kiefl

^*Corresponding author for this work

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

38 Scopus citations

Abstract

A low energy radioactive beam of polarized Li8 has been used to observe the vortex lattice near the surface of superconducting NbSe2. The inhomogeneous magnetic-field distribution associated with the vortex lattice was measured using depth-resolved β-detected NMR. Below Tc, one observes the characteristic line shape for a triangular vortex lattice which depends on the magnetic penetration depth and vortex core radius. The size of the vortex core varies strongly with the magnetic field. In particular, in a low field of 10.8mT, the core radius is much larger than the coherence length. The possible origin of these giant vortices is discussed.

Original language	English
Article number	167001
Journal	Physical Review Letters
Volume	98
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.98.167001
State	Published - 16 Apr 2007
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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Salman, Z., Wang, D., Chow, K. H., Hossain, M. D., Kreitzman, S. R., Keeler, T. A., Levy, C. D. P., MacFarlane, W. A., Miller, R. I., Morris, G. D., Parolin, T. J., Saadaoui, H., Smadella, M., & Kiefl, R. F. (2007). Magnetic-field effects on the size of vortices below the surface of NbSe2 detected using low energy β-NMR. Physical Review Letters, 98(16), Article 167001. https://doi.org/10.1103/PhysRevLett.98.167001

@article{5a8270cc55c64480963cfd47d6c43c8c,

title = "Magnetic-field effects on the size of vortices below the surface of NbSe2 detected using low energy β-NMR",

abstract = "A low energy radioactive beam of polarized Li8 has been used to observe the vortex lattice near the surface of superconducting NbSe2. The inhomogeneous magnetic-field distribution associated with the vortex lattice was measured using depth-resolved β-detected NMR. Below Tc, one observes the characteristic line shape for a triangular vortex lattice which depends on the magnetic penetration depth and vortex core radius. The size of the vortex core varies strongly with the magnetic field. In particular, in a low field of 10.8mT, the core radius is much larger than the coherence length. The possible origin of these giant vortices is discussed.",

author = "Z. Salman and D. Wang and Chow, \{K. H.\} and Hossain, \{M. D.\} and Kreitzman, \{S. R.\} and Keeler, \{T. A.\} and Levy, \{C. D.P.\} and MacFarlane, \{W. A.\} and Miller, \{R. I.\} and Morris, \{G. D.\} and Parolin, \{T. J.\} and H. Saadaoui and M. Smadella and Kiefl, \{R. F.\}",

year = "2007",

month = apr,

day = "16",

doi = "10.1103/PhysRevLett.98.167001",

language = "English",

volume = "98",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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Salman, Z, Wang, D, Chow, KH, Hossain, MD, Kreitzman, SR, Keeler, TA, Levy, CDP, MacFarlane, WA, Miller, RI, Morris, GD, Parolin, TJ, Saadaoui, H, Smadella, M & Kiefl, RF 2007, 'Magnetic-field effects on the size of vortices below the surface of NbSe2 detected using low energy β-NMR', Physical Review Letters, vol. 98, no. 16, 167001. https://doi.org/10.1103/PhysRevLett.98.167001

TY - JOUR

T1 - Magnetic-field effects on the size of vortices below the surface of NbSe2 detected using low energy β-NMR

AU - Salman, Z.

AU - Wang, D.

AU - Chow, K. H.

AU - Hossain, M. D.

AU - Kreitzman, S. R.

AU - Keeler, T. A.

AU - Levy, C. D.P.

AU - MacFarlane, W. A.

AU - Miller, R. I.

AU - Morris, G. D.

AU - Parolin, T. J.

AU - Saadaoui, H.

AU - Smadella, M.

AU - Kiefl, R. F.

PY - 2007/4/16

Y1 - 2007/4/16

N2 - A low energy radioactive beam of polarized Li8 has been used to observe the vortex lattice near the surface of superconducting NbSe2. The inhomogeneous magnetic-field distribution associated with the vortex lattice was measured using depth-resolved β-detected NMR. Below Tc, one observes the characteristic line shape for a triangular vortex lattice which depends on the magnetic penetration depth and vortex core radius. The size of the vortex core varies strongly with the magnetic field. In particular, in a low field of 10.8mT, the core radius is much larger than the coherence length. The possible origin of these giant vortices is discussed.

AB - A low energy radioactive beam of polarized Li8 has been used to observe the vortex lattice near the surface of superconducting NbSe2. The inhomogeneous magnetic-field distribution associated with the vortex lattice was measured using depth-resolved β-detected NMR. Below Tc, one observes the characteristic line shape for a triangular vortex lattice which depends on the magnetic penetration depth and vortex core radius. The size of the vortex core varies strongly with the magnetic field. In particular, in a low field of 10.8mT, the core radius is much larger than the coherence length. The possible origin of these giant vortices is discussed.

UR - https://www.scopus.com/pages/publications/34247112744

U2 - 10.1103/PhysRevLett.98.167001

DO - 10.1103/PhysRevLett.98.167001

M3 - Article

AN - SCOPUS:34247112744

SN - 0031-9007

VL - 98

JO - Physical Review Letters

JF - Physical Review Letters

IS - 16

M1 - 167001

ER -

Magnetic-field effects on the size of vortices below the surface of NbSe2 detected using low energy β-NMR

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