Dynamics of single vortices in grain boundaries: I-V characteristics on the femtovolt scale

B. Kalisky, J.R. Kirtley, E.A. Nowadnick, R.B. Dinner, E. Zeldov, A. Ariando, Sander Wenderich, S. Wenderich, Johannes W.M. Hilgenkamp, D.M. Feldmann, K.A. Moler

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

We employed a scanning Hall probe microscope to detect the hopping of individual vortices between pinning sites along grain boundaries in YBa2Cu3O6+δ thin films in the presence of an applied current. Detecting the motion of individual vortices allowed us to probe the current-voltage (I-V) characteristics of the grain boundary with voltage sensitivity below a femtovolt. We find a very sharp onset of dissipation with V∝In with an unprecedented high exponent of n ≈ 290 that shows essentially no dependence on temperature or grain boundary angle. Our data have no straightforward explanation within the existing grain boundary transport models.
Original languageUndefined
Pages (from-to)202504-
JournalApplied physics letters
Volume94
Issue number20
DOIs
Publication statusPublished - 2009

Keywords

  • IR-73725
  • METIS-261979

Cite this

Kalisky, B., Kirtley, J. R., Nowadnick, E. A., Dinner, R. B., Zeldov, E., Ariando, A., ... Moler, K. A. (2009). Dynamics of single vortices in grain boundaries: I-V characteristics on the femtovolt scale. Applied physics letters, 94(20), 202504-. https://doi.org/10.1063/1.3137164
Kalisky, B. ; Kirtley, J.R. ; Nowadnick, E.A. ; Dinner, R.B. ; Zeldov, E. ; Ariando, A. ; Wenderich, Sander ; Wenderich, S. ; Hilgenkamp, Johannes W.M. ; Feldmann, D.M. ; Moler, K.A. / Dynamics of single vortices in grain boundaries: I-V characteristics on the femtovolt scale. In: Applied physics letters. 2009 ; Vol. 94, No. 20. pp. 202504-.
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abstract = "We employed a scanning Hall probe microscope to detect the hopping of individual vortices between pinning sites along grain boundaries in YBa2Cu3O6+δ thin films in the presence of an applied current. Detecting the motion of individual vortices allowed us to probe the current-voltage (I-V) characteristics of the grain boundary with voltage sensitivity below a femtovolt. We find a very sharp onset of dissipation with V∝In with an unprecedented high exponent of n ≈ 290 that shows essentially no dependence on temperature or grain boundary angle. Our data have no straightforward explanation within the existing grain boundary transport models.",
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author = "B. Kalisky and J.R. Kirtley and E.A. Nowadnick and R.B. Dinner and E. Zeldov and A. Ariando and Sander Wenderich and S. Wenderich and Hilgenkamp, {Johannes W.M.} and D.M. Feldmann and K.A. Moler",
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Kalisky, B, Kirtley, JR, Nowadnick, EA, Dinner, RB, Zeldov, E, Ariando, A, Wenderich, S, Wenderich, S, Hilgenkamp, JWM, Feldmann, DM & Moler, KA 2009, 'Dynamics of single vortices in grain boundaries: I-V characteristics on the femtovolt scale', Applied physics letters, vol. 94, no. 20, pp. 202504-. https://doi.org/10.1063/1.3137164

Dynamics of single vortices in grain boundaries: I-V characteristics on the femtovolt scale. / Kalisky, B.; Kirtley, J.R.; Nowadnick, E.A.; Dinner, R.B.; Zeldov, E.; Ariando, A.; Wenderich, Sander; Wenderich, S.; Hilgenkamp, Johannes W.M.; Feldmann, D.M.; Moler, K.A.

In: Applied physics letters, Vol. 94, No. 20, 2009, p. 202504-.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Dynamics of single vortices in grain boundaries: I-V characteristics on the femtovolt scale

AU - Kalisky, B.

AU - Kirtley, J.R.

AU - Nowadnick, E.A.

AU - Dinner, R.B.

AU - Zeldov, E.

AU - Ariando, A.

AU - Wenderich, Sander

AU - Wenderich, S.

AU - Hilgenkamp, Johannes W.M.

AU - Feldmann, D.M.

AU - Moler, K.A.

PY - 2009

Y1 - 2009

N2 - We employed a scanning Hall probe microscope to detect the hopping of individual vortices between pinning sites along grain boundaries in YBa2Cu3O6+δ thin films in the presence of an applied current. Detecting the motion of individual vortices allowed us to probe the current-voltage (I-V) characteristics of the grain boundary with voltage sensitivity below a femtovolt. We find a very sharp onset of dissipation with V∝In with an unprecedented high exponent of n ≈ 290 that shows essentially no dependence on temperature or grain boundary angle. Our data have no straightforward explanation within the existing grain boundary transport models.

AB - We employed a scanning Hall probe microscope to detect the hopping of individual vortices between pinning sites along grain boundaries in YBa2Cu3O6+δ thin films in the presence of an applied current. Detecting the motion of individual vortices allowed us to probe the current-voltage (I-V) characteristics of the grain boundary with voltage sensitivity below a femtovolt. We find a very sharp onset of dissipation with V∝In with an unprecedented high exponent of n ≈ 290 that shows essentially no dependence on temperature or grain boundary angle. Our data have no straightforward explanation within the existing grain boundary transport models.

KW - IR-73725

KW - METIS-261979

U2 - 10.1063/1.3137164

DO - 10.1063/1.3137164

M3 - Article

VL - 94

SP - 202504-

JO - Applied physics letters

JF - Applied physics letters

SN - 0003-6951

IS - 20

ER -

Kalisky B, Kirtley JR, Nowadnick EA, Dinner RB, Zeldov E, Ariando A et al. Dynamics of single vortices in grain boundaries: I-V characteristics on the femtovolt scale. Applied physics letters. 2009;94(20):202504-. https://doi.org/10.1063/1.3137164