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Stripe order related in-plane fourfold symmetric superconductivity in La1.45Nd0.4Sr0.15CuO4 single crystal
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10.1063/1.4790319
/content/aip/journal/jap/113/5/10.1063/1.4790319
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/5/10.1063/1.4790319

Figures

Image of FIG. 1.
FIG. 1.

Temperature dependence of out-of-plane resistivity ρc of La1.45Nd0.4Sr0.15CuO4 single crystal (a) at zero field; (b)–(e) under different magnetic fields for θ = 0°, 15°, 30°, 45°; (f) for fields along [1,0,0] (solid dots) and [1,1,0] (blank dots) directions. The insert in (a) displays the experimental setup of the resistivity measurements.

Image of FIG. 2.
FIG. 2.

Angular dependence of the out-of-plane resistivity for LNSCO at different temperatures (a) and magnetic fields (b). The data for 30 K have been multiplied by a factor of 1.05. The solid lines are the fitting results according to Eq. (4) .

Image of FIG. 3.
FIG. 3.

Angular dependence of (a) out-of-plane resistivity ρc at 20 K and 7 T. The blue and red lines are the fitting results according to Eqs. (1) and (4) , respectively.

Image of FIG. 4.
FIG. 4.

(a) Temperature dependence of Hc 2 at different magnetic field directions and the solid lines are the fitting results using Eq. (2) ; (b) Angular dependence of the upper critical field Hc 2 obtained from the fitting curves in (a) at different temperatures. The red lines are the fitting result using Eq. (3) .

Image of FIG. 5.
FIG. 5.

(a) Temperature dependence of Hirr at different magnetic field directions; (b) angular dependence of the irreversibility field Hirr obtained from the fitting curves in (a) at different temperatures. The solid line in (a) is fit to (1-T/T c) n law.

Image of FIG. 6.
FIG. 6.

Arrhenius plot of ρc at different in-plane field directions. The solid lines are the fitting results using Eq. (5) .

Image of FIG. 7.
FIG. 7.

Angular dependence of activation energy U for flux motion at different magnetic fields.

Tables

Generic image for table
Table I.

The fitting parameters and at different temperature.

Generic image for table
Table II.

The fitting parameters a and b at 9 T with different temperature.

Generic image for table
Table III.

The fitting parameters a and b at 20 K with different field.

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/content/aip/journal/jap/113/5/10.1063/1.4790319
2013-02-07
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Stripe order related in-plane fourfold symmetric superconductivity in La1.45Nd0.4Sr0.15CuO4 single crystal
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/5/10.1063/1.4790319
10.1063/1.4790319
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