Phys. Rev. B 73, 132501 (2006) [4 pages]Effect of a magnetic field on the electron-boson spectral function of cuprate superconductorsReceived 24 May 2005; revised 28 November 2005; published 3 April 2006 We have performed magneto-optical measurements on a series of high-Tc superconductors with magnetic field up to 18 T. Similar to previous reports in smaller fields, the results reveal that the optical constants, both in the normal and superconducting state, of several families of high-Tc cuprates are completely insensitive to the application of external magnetic field. These magneto-optical results seem to indicate that either the bosonic mode responsible for pairing is not magnetic in origin, or the charge carriers are not very strongly coupled to it. We discuss the results within the existing theoretical models. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.73.132501
DOI:
10.1103/PhysRevB.73.132501
PACS:
74.25.Gz, 74.72.−h, 78.30.−j, 78.40.−q
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.