activity
19942026
most citedSingular quasiparticle scattering in the proximity of charge instabilities

448 citations · 3.8k across the 112 of their papers we have counts for

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Showing 1998Show all

7 papers · 1 filter

cond-mat.str-el1998

On localization effects in underdoped cuprates

C. Castellani, P. Schwab, M. Grilli

We comment on transport experiments in underdoped LaSrCuO in the non-superconducting phase. The temperature dependence of the resistance strongly resembles what is expected from st…

cond-mat.supr-con1998★ 1 cited

The Stripe-Phase Quantum-Critical-Point Scenario for High-Tc Superconductors

S. Caprara, C. Castellani, C. Di Castro +3

A summary is given of the main outcomes of the quantum-critical-point scenario for high- superconductors, developed in the last few years by the Rome group. Phase separation,…

cond-mat.supr-con1998★ 8 cited

Fermi Surface and gap parameter in high-Tc superconductors: the Stripe Quantum Critical Point scenario

S. Caprara, C. Di Castro, M. Grilli +2

We study the single-particle spectral properties of electrons coupled to quasicritical charge and spin fluctuations close to a stripe-phase, which is governed by a Quantum Critical…

cond-mat.str-el1998★ 39 cited

Single-particle properties of a model for coexisting charge and spin quasi-critical fluctuations coupled to electrons

S. Caprara, M. Sulpizi, A. Bianconi +2

We study the single-particle spectral properties of a model for coexisting AFM and ICDW critical fluctuations coupled to electrons, which naturally arises in the context of the str…

cond-mat.stat-mech1998★ 13 cited

Renormalization group analysis of the quantum non-linear sigma model with a damping term

Andrea Gamba, Marco Grilli, Claudio Castellani

We investigate the behavior of the zero-temperature quantum non-linear sigma model in d dimensions in the presence of a damping term of the form f(w)~ |w|^alpha, with 1 \le alpha <…

cond-mat.str-el1998★ 67 cited

Stripe formation: A quantum critical point for cuprate superconductors

C. Castellani, C. Di Castro, M. Grilli

We discuss the effects of a quantum critical point located nearby optimum doping and related to local charge segregation (stripe phase). The fluctuations in the critical region pro…

cond-mat.str-el1998★ 51 cited

Striped phases in the two-dimensional Hubbard model with long-range Coulomb interaction

G. Seibold, C. Castellani, C. Di Castro +2

We investigate the formation of partially filled domain walls in the two-dimensional Hubbard model in the presence of long-range interaction. Using an unrestricted Gutzwiller varia…