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Physical review B >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/2241/100863
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| Title: | Fermi arc in the superconducting state of impurity-doped Bi2Sr2CaCu2O8 |
| Authors: | Sato, T.
Terashima, K.
Nakayama, K.
Souma, S.
Takahashi, T.
Yamamoto, T.
Kadowaki, K.
門脇, 和男 |
| Issue Date: | Sep-2008 |
| Publisher: | The American Physical Society |
| Journal Title: | Physical review B |
| Volume: | 78 |
| Issue: | 10 |
| Start Page: | 100502 |
| DOI: | 10.1103/PhysRevB.78.100502 |
| Abstract: | We have performed ultrahigh energy- and momentum-resolved angle-resolved photoemission spectroscopy of impurity-doped Bi2Sr2CaCu2O8. We found that the point node of the superconducting gap near the (pi/2,pi/2) point in a pristine sample gradually evolves into a small gapless Fermi arc upon Zn or Ni doping. The shape of impurity-induced density of states inside the superconducting gap shows a marked difference between Zn and Ni doping, demonstrating that the low-energy excitation properties are strongly sensitive to the character of impurities. |
| URI: | http://hdl.handle.net/2241/100863 |
| Rights: | ©2008 The American Physical Society |
| Text Version: | publisher |
| Appears in Collections: | Physical review B
門脇 和男 (Kadowaki Kazuo)
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