Diamagnetic vortex barrier stripes in underdopedBaFe2(As1−xPx)2
| Autor: | A. Almoalem, Shigeru Kasahara, Yuichi Matsuda, A. Yagil, Ophir M. Auslaender, Y. Lamhot, T. Shibauchi, Tatsuya Watashige |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Superconductivity
Physics Condensed matter physics 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Vortex Magnetic field Drag Condensed Matter::Superconductivity 0103 physical sciences Superconducting transition temperature Diamagnetism Condensed Matter::Strongly Correlated Electrons Magnetic force microscope 010306 general physics 0210 nano-technology |
| Zdroj: | Physical Review B. 94 |
| ISSN: | 2469-9969 2469-9950 |
| DOI: | 10.1103/physrevb.94.064510 |
| Popis: | We report magnetic force microscopy (MFM) measurements on underdoped $BaFe_2(As_{1-x}P_x)_2$ ($x=0.26$) that show enhanced superconductivity along stripes parallel to twin boundaries. These stripes of enhanced diamagnetic response repel vortices when we cool in a finite magnetic field and act as barriers when we drag vortices with the magnetic MFM tip. The stripes disappear when we warm the sample towards the superconducting transition temperature. We show that stripes can move when we warm the sample and comment on the relationship between the stripes and similar stripes observed previously in $Ba(Fe_{1-x}Co_x)_2As_2$. |
| Databáze: | OpenAIRE |
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