Vibronic pairwise charge transfer in copper-oxide sheets: A possible approach to high temperature superconductivity theory

Chiu, Ying‐Nan; Brown, Samuel H.; Sondergaard, Neal A.; Wang, Frederick E.

doi:10.1007/bf01113469

Cited by 6 publications

(1 citation statement)

References 34 publications

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“…Eq. [3]), we next examine the running-wave model of excitons (17,18), which we have previously considered as Covalons (19)(20)(21). Again, instead of the nearest-neighbor movement of the excitons (denoted by an asterisk), such as C"C*" C-C" C to C" C-C" C*" C, we look at the motion of the distant neighbors, basing our model on the doping distance.…”

Section: Vibronic Effects In Doped Structures With the Covalon Modelmentioning

confidence: 99%

Chemical Geminal Charge Transfer, Vibronic Degeneracy Effects, and Doping Excitons in Superconductivity

Chiu

Palting

Lai

et al. 1997

Journal of Solid State Chemistry

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Section: Vibronic Effects In Doped Structures With the Covalon Modelmentioning

confidence: 99%

Chemical Geminal Charge Transfer, Vibronic Degeneracy Effects, and Doping Excitons in Superconductivity

Chiu

Palting

Lai

et al. 1997

Journal of Solid State Chemistry

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Off‐diagonal long‐range order of the wave function in terms of the alternate molecular bonding geminals

Sun

2000

Chin. J. Chem.

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Vd. 18No. 4 (=MNEsE JOURNAL OF CHiMbTRY Off-diagonal long-range order of the wave function in terms of the alternate molecular bonding geminals Recently, Chiu proposed a quantum structural apwhere In&. (2), 1 and2ontheleftsidestandforthespinand x2 for their orbital CoordinatCB , arxlaandpforspin up and spin down, respectively. The vibmtional pseude anghmwnentumAcantakethevaluesd0, * I , -. -. Obital of h t and md @c1ee9 ' 1 * (z N -N (for even N). In of in Q. ( l ) , thevibdcgeminalisgivmby where xo and x1 represent respectively zero and one vimovement), similar to the linear combination of bonding brationalquantumnumberoftheeigenfunctions, andthe ge?ninalsinQ. (1). Bymaasofthevibronicgeminal vibrational mode Qh is taken to be the linear combinathe campletely antisymmetrized wave function of M election of qn,,,+1 = !,,+It,, (5. is the locaI atom n ' s tmn/hole paim is written as Rojcci (No. 29892168) suppod by the National Natural Science F d m d China.alternate MBGS #&4 and &4 (with A = N/4 for N = 4 " unib, N' is integer), which, generalized from ~ a n d A , c a n b e w r i t t e n a s Vol. 18 No. 4 2OOOChinese Jaumal of Chemistry

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Geminal approach to vibronic models of superconductivity in crystals. I. The Jahn–Teller effect

Palting

Letelier

Chiu

2003

Int J of Quantum Chemistry

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Electronic geminals constructed as linear combinations of binary products of site functions are used to formulate a vibronic model of superconductivity in crystals that is based upon the approximation of independent correlated electron pairs obtained variationally from an electron-pair Hamiltonian and the Jahn-Teller effect. The cyclic symmetry of the system is taken into account and the geminals are sorted into doubly degenerate pairs. The Herzberg-Teller expansion of the pair Hamiltonian in terms of vibrational modes leads directly to the Jahn-Teller effect. A contact transformation of the vibronic Hamiltonian containing only linear terms lowers the energy of the system by a second-order term associated with the Jahn-Teller stabilization energy. A possible model for superconductivity in solids is proposed on the basis of the Jahn-Teller effect.

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Vibronic pairwise charge transfer in copper-oxide sheets: A possible approach to high temperature superconductivity theory

Cited by 6 publications

References 34 publications

Chemical Geminal Charge Transfer, Vibronic Degeneracy Effects, and Doping Excitons in Superconductivity

Chemical Geminal Charge Transfer, Vibronic Degeneracy Effects, and Doping Excitons in Superconductivity

Off‐diagonal long‐range order of the wave function in terms of the alternate molecular bonding geminals

Geminal approach to vibronic models of superconductivity in crystals. I. The Jahn–Teller effect

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