Details

Autor(en) / Beteiligte

• Zhang, Xiaohang
• Saha, Shanta R.
• Butch, Nicholas P.
• Kirshenbaum, Kevin
• Paglione, Johnpierre
• Greene, Richard L.
• Liu, Yong
• Yan, Liqin
• Oh, Yoon Seok
• Kim, Kee Hoon
• Takeuchi, Ichiro

Titel

Josephson effect between electron-doped and hole-doped iron pnictide single crystals

Ist Teil von

• Applied physics letters, 2009-08, Vol.95 (6), p.062510-062510-3

Ort / Verlag

American Institute of Physics

Erscheinungsjahr

2009

Quelle

AIP Journals Complete

Beschreibungen/Notizen

• We have observed the Josephson effect in junctions formed between single crystals of SrFe 1.74 Co 0.26 As 2 and Ba 0.23 K 0.77 Fe 2 As 2 . The ac Josephson effect was observed under microwave irradiation in the I - V characteristics. By applying an in-plane magnetic field, the critical current is completely modulated and shows a relatively symmetric diffraction pattern consistent with the intermediate junction limit. The observation of the Josephson effect in the p - n bicrystal structure not only has significant implications for designing phase-sensitive junctions to probe the pairing symmetry of iron pnictide superconductors, but also represents an important step in developing all iron pnictide devices for applications.