HOLON-PAIR CONDENSATION OF HIGH Tc CUPRATES: SUPERSYMMETRY CONDITIONS

1999 ◽  
Vol 13 (29n31) ◽  
pp. 3455-3459 ◽  
Author(s):  
SUNG-SIK LEE ◽  
SUNG-HO SUCK SALK
Keyword(s):  
Free Energy ◽  
Symmetry Breaking ◽  
Bose Condensation ◽  
High Tc ◽  
Pair Condensation ◽  
High Tc Cuprates

Based on the t–J Hamiltonian of U(1) slave-boson symmetry it is shown from our derived free energy that symmetry breaking can occur to allow holon-pair bose condensation. Supersymmetry conditions are proposed based on our derived quasiparticle Hamiltonian involving both spinons and holons.

DISTINCTIVE FEATURES OF NOVEL SUPERCONDUCTING TRANSITIONS IN UNDERDOPED AND OVERDOPED HIGH-Tc CUPRATES

2005 ◽  
Vol 19 (01n03) ◽  
pp. 43-45
Author(s):  
S. DZHUMANOV ◽  
J. D. FAN
Keyword(s):  
Phase Transitions ◽  
Liquid State ◽  
Cooper Pair ◽  
Pair Formation ◽  
High Tc ◽  
Distinctive Features ◽  
Bose Liquid ◽  
Pair Condensation ◽  
High Tc Cuprates ◽  
Superconducting Transitions

It is argued that the new theory that combines the precursor BCS-like non-superconducting (SC) pairing and the Cooper-pair condensation into a superfluid Bose-liquid state is more plausible than the standard SC fluctuation approach in describing the distinctive features of the underdoped and overdoped high-Tc cuprates. We show that the scenarios for high-Tc superconductivity in these materials are quite different on the character of the Cooper-pair formation and SC phase transitions.

Doping Dependence of Bose Condensation Energy in High Tc Cuprates

2003 ◽  
Vol 17 (18n20) ◽  
pp. 3231-3235
Author(s):  
Sung-Sik Lee ◽  
Sung-Ho Suck Salk
Keyword(s):  
Degrees Of Freedom ◽  
Doping Concentration ◽  
Bose Condensation ◽  
Hole Doping ◽  
Condensation Energy ◽  
Spin Gap ◽  
High Tc ◽  
Doping Dependence ◽  
Boson Theory ◽  
High Tc Cuprates

The doping dependence of the bose condensation energy is investigated by using our SU (2) holon-pair boson theory. It is shown that the bose condensation energy U results from the interplay between the charge and spin degrees of freedom and that the doping dependence of U at T=0K is well fit by the relation, [Formula: see text] with Δ0, the spin gap at 0K; x, the hole doping concentration and α, a constant.

Excitation spectra in doped high-Tc cuprates

2005 ◽  
Vol 66 (8-9) ◽  
pp. 1392-1394
Author(s):  
Takashi Yanagisawa ◽  
Mitake Miyazaki ◽  
Kunihiko Yamaji
Keyword(s):  
Excitation Spectra ◽  
High Tc ◽  
High Tc Cuprates

Sum Rules and Interlayer Conductivity of High-Tc Cuprates

Science ◽  
1999 ◽  
Vol 283 (5398) ◽  
pp. 49-52 ◽  
Author(s):  
D. N. Basov
Keyword(s):  
Sum Rules ◽  
High Tc ◽  
High Tc Cuprates

Unified explanation for the six doping dependences in the high-Tc cuprates

2002 ◽  
Vol 377 (4) ◽  
pp. 531-537 ◽  
Author(s):  
Fu-sui Liu ◽  
Wan-fang Chen
Keyword(s):  
High Tc ◽  
High Tc Cuprates
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