Abstract
A giant Nernst signal was recently observed for fields near crystallographic directions in (TMTSF)2PF6. Such large Nernst signals are most naturally associated with the motion of pancake vortices. We propose a model in which phase coherence is destroyed throughout the sample except in planes closely aligned with the applied field H. A small tilt above or below the plane changes the direction and density of the penetrating vortices and leads to a Nernst signal that varies with the tilt angle of H as observed. The resistance notches at magic angles are understood in terms of flux-flow dissipation from field-induced vortices.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 579-584 |
| Number of pages | 6 |
| Journal | EPL |
| Volume | 66 |
| Issue number | 4 |
| DOIs | |
| State | Published - May 2004 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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Phase coherence and the Nernst effect at magic angles in organic conductors. / Ong, N. P.; Wu, Weida; Chaikin, P. M.; Anderson, P. W.
In: EPL, Vol. 66, No. 4, 05.2004, p. 579-584.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Phase coherence and the Nernst effect at magic angles in organic conductors
AU - Ong, N. P.
AU - Wu, Weida
AU - Chaikin, P. M.
AU - Anderson, P. W.
PY - 2004/5
Y1 - 2004/5
N2 - A giant Nernst signal was recently observed for fields near crystallographic directions in (TMTSF)2PF6. Such large Nernst signals are most naturally associated with the motion of pancake vortices. We propose a model in which phase coherence is destroyed throughout the sample except in planes closely aligned with the applied field H. A small tilt above or below the plane changes the direction and density of the penetrating vortices and leads to a Nernst signal that varies with the tilt angle of H as observed. The resistance notches at magic angles are understood in terms of flux-flow dissipation from field-induced vortices.
AB - A giant Nernst signal was recently observed for fields near crystallographic directions in (TMTSF)2PF6. Such large Nernst signals are most naturally associated with the motion of pancake vortices. We propose a model in which phase coherence is destroyed throughout the sample except in planes closely aligned with the applied field H. A small tilt above or below the plane changes the direction and density of the penetrating vortices and leads to a Nernst signal that varies with the tilt angle of H as observed. The resistance notches at magic angles are understood in terms of flux-flow dissipation from field-induced vortices.
UR - http://www.scopus.com/inward/record.url?scp=2542599205&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=2542599205&partnerID=8YFLogxK
U2 - 10.1209/epl/i2004-10017-9
DO - 10.1209/epl/i2004-10017-9
M3 - Article
VL - 66
SP - 579
EP - 584
JO - Europhysics Letters
JF - Europhysics Letters
SN - 0295-5075
IS - 4
ER -