SELF-CONSISTENT CALCULATION OF THE ELECTRONIC-SPECTRUM AND THE DYNAMIC SPIN SUSCEPTIBILITY FOR THE 2-DIMENSIONAL HUBBARD-MODEL

被引：19

作者：

WERMBTER, S ^{[1
]}

TEWORDT, L ^{[1
]}

机构：

[1] UNIV HAMBURG,THEORET FESTKORPERPHYS ABT,D-20355 HAMBURG,GERMANY

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.48.10514

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate self-consistently the momentum and energy dependence of the quasiparticle self-energy and the dynamic spin susceptibility chi(s) for the two-dimensional Hubbard model. Near the magnetic instability we find incommensurate peaks in Imchi(s)(q,omega) similar to those observed by neutron scattering in La2-xSrxCuO4. The magnetic instability itself is strongly renormalized by the self-energy corrections. The density of states exhibits a pseudogap, and the resistivity is nearly linear in T. However, we do not find spin-fluctuation-induced superconductivity.

引用

页码：10514 / 10519

页数：6

共 25 条

[11] CHARGE-FLUCTUATION-INDUCED AND SPIN-FLUCTUATION-INDUCED PAIRING INTERACTION IN AN EXTENDED HUBBARD-MODEL FOR COPPER-OXIDE SUPERCONDUCTORS [J].

DAHM, T ;

TEWORDT, L .

PHYSICA C, 1993, 211 (3-4) :440-454

[12] PSEUDOGAPS AND THE SPIN-BAG APPROACH TO HIGH-TC SUPERCONDUCTIVITY [J].

KAMPF, A ;

SCHRIEFFER, JR .

PHYSICAL REVIEW B, 1990, 41 (10) :6399-6408

[13] SPECTRAL-FUNCTION AND PHOTOEMISSION SPECTRA IN ANTIFERROMAGNETICALLY CORRELATED METALS [J].

KAMPF, AP ;

SCHRIEFFER, JR .

PHYSICAL REVIEW B, 1990, 42 (13) :7967-7974

[14] EFFECTS OF PHONONS AND ANTIFERROMAGNETIC SPIN FLUCTUATIONS ON THE PAIRING AND DENSITY OF STATES IN HIGH-TC SUPERCONDUCTORS [J].

LENCK, S ;

WERMBTER, S ;

TEWORDT, L .

JOURNAL OF LOW TEMPERATURE PHYSICS, 1990, 80 (5-6) :269-283

[15]

LITTLEWOOD PB, 1992, HOUCHES LECTURE NOTE

[16] MAGNETIC DYNAMICS OF SUPERCONDUCTING LA1.86SR0.14CUO4 [J].

MASON, TE ;

AEPPLI, G ;

MOOK, HA .

PHYSICAL REVIEW LETTERS, 1992, 68 (09) :1414-1417

[17] YBA2CU3O7 - A NEARLY ANTIFERROMAGNETIC FERMI-LIQUID [J].

MONTHOUX, P ;

PINES, D .

PHYSICAL REVIEW B, 1993, 47 (10) :6069-6081

[18] SPIN-FLUCTUATION-INDUCED SUPERCONDUCTIVITY IN THE COPPER OXIDES - A STRONG COUPLING CALCULATION [J].

MONTHOUX, P ;

PINES, D .

PHYSICAL REVIEW LETTERS, 1992, 69 (06) :961-964

[19] ANTIFERROMAGNETIC SPIN FLUCTUATIONS AND SUPERCONDUCTIVITY IN 2-DIMENSIONAL METALS - A POSSIBLE MODEL FOR HIGH-TC OXIDES [J].

MORIYA, T ;

TAKAHASHI, Y ;

UEDA, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1990, 59 (08) :2905-2915

[20] QUASI-PARTICLE PROPERTIES OF THE 2-DIMENSIONAL HUBBARD-MODEL IN A PROPAGATOR-RENORMALIZED FLUCTUATION-EXCHANGE APPROXIMATION [J].

SERENE, JW ;

HESS, DW .

PHYSICAL REVIEW B, 1991, 44 (07) :3391-3394

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