Download Non-Universal Superconducting Gap Structure in by Kenichiro Hashimoto PDF

By Kenichiro Hashimoto

In this ebook the writer offers vital findings published by means of high-precision magnetic penetration intensity measurements in iron-based superconductors which convey high-transition temperature superconductivity as much as fifty five ok: one is the truth that the superconducting hole constitution in iron-based superconductors is determined by an in depth digital constitution of person fabrics, and the opposite is the 1st powerful proof for the presence of a quantum severe element (QCP) underneath the superconducting dome of iron-based superconductors.

The magnetic penetration intensity is a strong probe to explain the superconducting hole constitution that's in detail concerning the pairing mechanism of superconductivity. the writer discusses the potential hole constitution of person iron-based superconductors by means of evaluating the space constitution acquired from the penetration intensity measurements with theoretical predictions, indicating that the non-universal superconducting hole constitution in iron-pnictides should be interpreted within the framework of A1g symmetry. This outcome imposes a powerful constraint at the pairing mechanism of iron-based superconductors.

The writer additionally indicates transparent facts for the quantum criticality contained in the superconducting dome from absolutely the zero-temperature penetration intensity measurements as a functionality of chemical composition. a pointy height of the penetration intensity at a undeniable composition demonstrates reported quantum fluctuations linked to the QCP, which separates specific superconducting levels. this offers the 1st convincing signature of a second-order quantum section transition deep contained in the superconducting dome, that may tackle a key query at the normal section diagram of unconventional superconductivity within the neighborhood of a QCP.

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Extra resources for Non-Universal Superconducting Gap Structure in Iron-Pnictides Revealed by Magnetic Penetration Depth Measurements

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Prozorov, Phys. Rev. B 79, 100506(R) (2009) 51. B. G. V. Chubukov, Phys. Rev. B 79, 140507(R) (2009) 52. Y. Bang, Europhys. Lett. 86, 47001 (2009) 53. W. M. E. G. -H. S. R. A. Moler, Phys. Rev. Lett. 103, 127003 (2009) 54. D. Fletcher, A. Serafin, L. G. -H. S. R. Fisher, A. Carrington, Phys. Rev. Lett. 102, 147001 (2009) 55. G. A. -Ph. Reid, H. Shakeripour, N. Doiron-Leyraud, N. L. C. Canfield, H. Luo, Z. -H. Wen, R. Prozorov, L. Taillefer, Phys. Rev. B 80, 140503(R) (2009) 56. A. P. Reid, H. G.

Both structural and antiferromagnetic transitions in the FeAs planes are suppressed by doping or applying pressure. In Fig. 8a we show the phase diagram of the LaFeAsO1−x Fx system, obtained from μSR experiments [30]. It can be seen that the temperatures of the structural and magnetic transitions are clearly separated, while the superconducting phase does not overlap with the SDW phase. Similar phase diagram has been obtained for PrFeAsO1−x Fx and CeFeAsO1−x Fx from neutron scattering experiments, where the superconducting state also does not coexist with the SDW state.

H. Kontani, S. Onari, Phys. Rev. Lett. 104, 157001 (2010) 35. K. Kuroki, H. Usui, S. Onari, R. Arita, H. Aoki, Phys. Rev. B 79, 224511 (2009) 36. H. Ikeda, R. Arita, J. Kunes, Phys. Rev. B 82, 024508 (2010) 37. X. Dai, Z. Fang, Y. C. Zhang, Phys. Rev. Lett. 101, 057008 (2008) 38. A. G. Wen, Phys. Rev. B 78, 144517 (2008) 39. S. Nakajima, Prog. Theor. Phys. 50, 1101 (1973) 40. J. Scalapino, Phys. Rep. 250, 329 (1995) 41. A. C. Lee, T. Moyoshi, Y. Kobayashi, M. Sato, J. Phys. Soc. Jpn. 77, 103704 (2008) 42.

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