Field Induced Multiple Reentrant Quantum Phase Transitions in Randomly Dimerized Antiferromagnetic S=1/2 Heisenberg Chains [PDF]
, 2006 The multiple reentrant quantum phase transitions in the $S=1/2$ antiferromagnetic Heisenberg chains with random bond alternation in the magnetic field are investigated by the density matrix renormalization group method combined with the interchain mean ...
Cabra D. C. +16 more
core +4 more sources
Magnetism Localization in Spin-Polarized One-Dimensional Anderson-Hubbard Model [PDF]
, 2008 In order to study an interplay of disorder, correlation, and spin imbalance on antiferromagnetism, we systematically explore the ground state of one-dimensional spin-imbalanced Anderson-Hubbard model by using the density-matrix renormalization group ...
M. MACHIDA +4 more
core +3 more sources
Coexistence of Antiferromagnetism and Superconductivity in Electron-doped High-Tc Superconductors
, 2007 We present magnetotransport evidence for antiferromagnetism in films of the electron-doped cuprates Pr$_{2-x}$Ce$_x$CuO$_4$. Our results show clear signature of static antiferromagnetism up to optimal doping x=0.15, with a quantum phase transition close ...
J. S. Higgins +4 more
core +1 more source
Interplay between different states in heavy fermion physics
, 2006 Calorimetry experiments under high pressure were used to clarify the interplay between different states such as superconductivity and antiferromagnetism in CeRhIn5, spin density wave and large moment antiferromagnetism in URu2Si2.
Allodi +13 more
core +2 more sources
Effect of hydrostatic pressure on the ambient pressure superconductor CePt_3Si
, 2004 We studied the evolution of superconductivity (sc) and antiferromagnetism (afm) in the heavy fermion compound CePt_3Si with hydrostatic pressure. We present a pressure-temperature phase diagram established by electrical transport measurements.
Bauer +10 more
core +1 more source
Classical Antiferromagnetism in Kinetically Frustrated Electronic Models [PDF]
, 2014 We study the infinite U Hubbard model with one hole doped away half-filling, in triangular and square lattices with frustrated hoppings that invalidate Nagaoka's theorem, by means of the density matrix renormalization group.
Bravo, B. +4 more
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Interplay between Superconductivity and Antiferromagnetism in a Multi-layered System
, 2011 Based on a microscopic model, we study the interplay between superconductivity and antiferromagnetism in a multi-layered system, where two superconductors are separated by an antiferromagnetic region.
H. T. Quan +5 more
core +1 more source
Antiferromagnetism in metals: from the cuprate superconductors to the heavy fermion materials [PDF]
, 2012 The critical theory of the onset of antiferromagnetism in metals, with concomitant Fermi surface reconstruction, has recently been shown to be strongly coupled in two spatial dimensions.
Abanov Ar +11 more
core +2 more sources
, 2006 We analyze the competition between antiferromagnetism and superconductivity in the two-dimensional Hubbard model by combining a functional renormalization group flow with a mean-field theory for spontaneous symmetry breaking.
Metzner, W., Reiss, J., Rohe, D.
core +1 more source
Superconductivity and antiferromagnetism in a hard-core boson spin-1 model in two dimensions
, 2002 A model of hard-core bosons and spin-1 sites with single-ion anisotropy is proposed to approximately describe hole pairs moving in a background of singlets and triplets with the aim of exploring the relationship between superconductivity and ...
A. Dorneich +18 more
core +1 more source