Spin and charge pseudogaps following Kondo effect in the normal state of the underdoped cuprates

Journal Article · Sat Oct 30 04:00:00 EDT 1999 · International Journal of Modern Physics B

DOI:https://doi.org/10.1142/S0217979299002964· OSTI ID:20005674

Mojumder, M A

A study of experimental results on various parameters of underdoped cuprates in the normal state combined with analytic calculation of Hall parameters assuming a two-channel Kondo model for the system leads to the conclusion that the spin and charge pseudogaps are, respectively, a Kondo hybridization gap and an incipient d-wave superconducting gap. The former occurs due to resonant scattering of doped holes by the magnetic Cu{sup 2+} ions while the latter occurs due to incoherent Cooper pairing of Kondo-compensated quasi-itinerant Cu d-orbitals via exchange of spin excitations. The author comments on the essential similarity of the high-T{sub c} and heavy fermion superconductors and a certain crossover at lower temperatures from the two-channel to the one-channel Kondo model. An expression has been derived for the Kondo contribution to the spectral function of the charge pseudogap. The author believes this work unravels the long-standing conundrum of the high-T{sub c} cuprates.

• Research Organization: Univ. of Chittagong (BD)
• OSTI ID: 20005674
• Journal Information: International Journal of Modern Physics B, Journal Name: International Journal of Modern Physics B Journal Issue: 27 Vol. 13; ISSN IJPBEV; ISSN 0217-9792
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COOPER PAIRS
COPPER OXIDES
D WAVES
ENERGY GAP
HALL EFFECT
HIGH-TC SUPERCONDUCTORS
KONDO EFFECT