Superconducting gap in tunneling spectra and pseudogap behavior of high-{Tc} cuprates

Journal Article · Mon Dec 20 00:00:00 EST 1999 · International Journal of Modern Physics B

DOI:https://doi.org/10.1142/S0217979299003520· OSTI ID:20015137

Oda, M; Dipasupil, R M; Momono, N; Saigo, S; Nakano, T; Ido, M

Superconducting gap magnitude 2{Delta}{sub o} is re-examined by STM/STS at T {much{underscore}lt} {Tc} in Bi2212. It is confirmed that 2{Delta}{sub o} increases monotonically with lowering the doping level p and almost scales with pseudogap temperature T* over the entire p range examined; 2 {Delta}{sub o}(p){approximately}4.3k{sub B}T*(p). Furthermore, it is shown that {Tc} is almost given by renormalizing 2{Delta}{sub o} or T* with p; k{sub B}{Tc}(p){proportional{underscore}to}p{Delta}{sub o}(p) or {Tc}(p){proportional{underscore}to}pT*(p).

• Research Organization: Hokkaido Univ., Sapporo (JP)
• OSTI ID: 20015137
• Journal Information: International Journal of Modern Physics B, Vol. 13, Issue 29-31; Conference: Second International Conference of New Theories, Discoveries and Applications of Superconductors and Related Materials (New{sup 3}SC-2), Las Vegas, NV (US), 06/01/1999; Other Information: PBD: 20 Dec 1999; ISSN 0217-9792
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HIGH-TC SUPERCONDUCTORS
SUPERCONDUCTIVITY
ENERGY GAP
BISMUTH OXIDES
STRONTIUM OXIDES
CALCIUM OXIDES
COPPER OXIDES
TRANSITION TEMPERATURE
CRYSTAL DOPING