Université Paris-Sud

output

19922026

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2003 · cond-mat.str-elShow all

19 papers · 2 filters

cond-mat.str-el2003★ 55 cited

Quantum Spins and Quasiperiodicity: a real space renormalization group approach

A. Jagannathan

We study the antiferromagnetic spin-1/2 Heisenberg model on a two-dimensional bipartite quasiperiodic structure, the octagonal tiling -- the aperiodic equivalent of the square latt…

cond-mat.str-el2003★ 35 cited

Identifying the Background Signal in ARPES of High Temperature Superconductors

A. Kaminski, S. Rosenkranz, H. M. Fretwell +9

One of the interesting features of the photoemission spectra of the high temperature cuprate superconductors is the presence of a large signal (referred to as the "background'') in…

cond-mat.str-el2003★ 38 cited

Oscillatory non-linear conductance of an interacting quantum wire with an impurity

Fabrizio Dolcini, Hermann Grabert, Ines Safi +1

The nonlinear conductance of a one-dimensional quantum wire adiabatically coupled to Fermi Liquid electron reservoirs is determined in presence of an impurity. We show that electro…

cond-mat.str-el2003★ 25 cited

Berezinskii-Kosterlitz-Thouless transition and BCS-Bose crossover in the two-dimensional attractive Hubbard model

N. Dupuis

We study the two-dimensional attractive Hubbard model using the mapping onto the half-filled repulsive Hubbard model in a uniform magnetic field coupled to the fermion spins. The l…

cond-mat.str-el2003★ 44 cited

Comparison of S=0 and S=1/2 Impurities in Haldane Chain Compound, $Y_{2} B a N i O_{5}$

J. Das, A. V. Mahajan, J. Bobroff +3

We present the effect of Zn (S=0) and Cu (S=1/2) substitution at the Ni site of S=1 Haldane chain compound $Y_{2} B a N i O_{5}$ . $^{89}$ Y NMR allows us to measure the local magnetic su…

cond-mat.str-el2003★ 24 cited

Precessional switching of thin nanomagnets: analytical study

T. Devolder, C. Chappert

We study analytically the precessional switching of the magnetization of a thin macrospin. We analyze its response when subjected to an external field along its in-plane hard axis.…

cond-mat.str-el2003★ 12 cited

Spectral analysis of the precessional switching of the magnetization in an isotropic thin film

T. Devolder, C. Chappert

We study how a magnetic field step triggers the precessional switching of the magnetization in an isotropic thin film . Using a variational approach, we estimate analytically the s…

cond-mat.str-el2003★ 28 cited

Dzyaloshinsky-Moriya Spin Canting in the LTT Phase of La2-x-yEuySrxCuO4

M. Huecker, V. Kataev, J. Pommer +4

The Cu spin magnetism in La2-x-yEuySrxCuO4 (x<=0.17; y<=0.2) has been studied by means of magnetization measurements up to 14 T. Our results clearly show that in the antiferromagne…

cond-mat.str-el2003★ 3 cited

The enhancement of phase separation aspect in electron doped manganite Ca0.8Sm0.16Nd0.04MnO3

D. A. Filippov, K. V. Klimov, R. Z. Levitin +3

The complex lanthanide doping of electron manganites results in enhancement of various phase separation effects in physical properties of these compounds. Selecting Ca0.8Sm0.16Nd0.…

cond-mat.str-el2003★ 57 cited

Magnon-Hole Scattering and Charge Order in $S r_{14 - x} C a_{x} C u_{24} O_{41}$

C. Hess, H. ElHaes, B. Büchner +3

The magnon thermal conductivity $κ_{mag}$ of the hole doped spin ladders in $S r_{14 - x} C a_{x} C u_{24} O_{41}$ has been investigated at low doping levels $x$ . The analysis o…

cond-mat.str-el2003★ 17 cited

Spin Glass and antiferromagnetism in Kondo lattice disordered systems

S. G. Magalhaes, A. A. Schmidt, F. M. Zimmer +2

The competition between spin glass (SG), antiferromagnetism (AF) and Kondo effect is studied here in a model which consists of two Kondo sublattices with a gaussian random interact…

cond-mat.str-el2003★ 78 cited

Antiferromagnetism and single-particle properties in the two-dimensional half-filled Hubbard model: a non-linear sigma model approach

K. Borejsza, N. Dupuis

We describe a low-temperature approach to the two-dimensional half-filled Hubbard model which allows us to study both antiferromagnetism and single-particle properties. This approa…

cond-mat.str-el2003★ 4 cited

Theory of the ferroelectric phase in organic conductors: optics and physics of solitons

S. Brazovskii

Recently the ferroelectric anomaly (Nad, Monceau, et al) followed by the charge disproportionation (Brown, et al) have been discovered in (TMTTF)2X compounds. The corresponding the…

cond-mat.str-el2003★ 10 cited

Interface resistances and AC transport in a Luttinger liquid

K. -V. Pham

We consider a Luttinger liquid (LL) connected to two reservoirs when the two sample-reservoir interface resistances $R_{S}$ and $R_{D}$ are arbitrary (not necessarily quantized at…

cond-mat.str-el2003★ 28 cited

Anisotropic phonon conduction and lattice distortions in CMR-type bilayer manganite (La $_{1 - z}$ Pr $_{z}$ ) $_{1.2}$ Sr $_{1.8}$ Mn $_{2}$ O $_{7}$ (z=0,0.2,0.4 and 0.6) single crystals

M. Matsukawa, M. Narita

We have undertaken a systematic study of thermal conductivity as a function of temperature and magnetic field of single crystals of the compound (La $_{1 - z}$ Pr $_{z}$ ) $_{1.2}$ Sr$_{1.…

cond-mat.str-el2003★ 37 cited

Universal behavior of spin-mediated energy transport in S=1/2 chain cuprates: BaCu2Si2O7 as an example

A. V. Sologubenko, H. R. Ott, G. Dhalenne +1

The thermal conductivity of the spin-1/2 chain cuprate BaCu2Si2O7 was measured along different crystallographic directions in the temperature region between 0.5 and 300 K. The ther…

cond-mat.str-el2003★ 3 cited

Field-induced spin-density-wave phases in TMTSF organic conductors: quantization versus non-quantization

K. Sengupta, N. Dupuis

We study the magnetic-field-induced spin-density-wave (FISDW) phases in TMTSF organic conductors in the framework of the quantized nesting model. In agreement with recent suggestio…

cond-mat.str-el2003★ 258 cited

Mott transition and transport crossovers in the organic compound $κ - (B E D T - T T F)_{2} C u [N (C N)_{2}] C l$

P. Limelette, P. Wzietek, S. Florens +6

We have performed in-plane transport measurements on the two-dimensional organic salt $κ$ -(BEDT-TTF) $_{2}$ Cu[N(CN) $_{2}$ ]Cl. A variable (gas) pressure technique allows for a detail…

cond-mat.str-el2003★ 100 cited

Magnon Heat Transport in doped $L a_{2} Cu O_{4}$

C. Hess, B. Büchner, U. Ammerahl +4

We present results of the thermal conductivity of $L a_{2} Cu O_{4}$ and $L a_{1.8} E u_{0.2} Cu O_{4}$ single-crystals which represent model systems for the two-dimensional spin-1/2 Hei…