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of 78
pro vyhledávání: '"Montfrooij, Wouter"'
Metallic Kondo Lattice systems that have been prepared to exhibit a competition between ordering of magnetic moments and shielding of those moments by the conduction electrons down to absolute zero display unusual low-temperature responses. Here we s
Externí odkaz:
http://arxiv.org/abs/2305.09012
Autor:
Guarini, Eleonora, Bafile, Ubaldo, Colognesi, Daniele, Cunsolo, Alessandro, De Francesco, Alessio, Formisano, Ferdinando, Montfrooij, Wouter, Neumann, Martin, Barocchi, Fabrizio
A very recent simulation study of the transverse current autocorrelation of the Lennard-Jones fluid revealed, as expected, that this function can be perfectly described within the exponential expansion theory. However, above a certain wavevector $Q$,
Externí odkaz:
http://arxiv.org/abs/2302.05701
Autor:
Guarini, Eleonora, Neumann, Martin, De Francesco, Alessio, Formisano, Ferdinando, Cunsolo, Alessandro, Montfrooij, Wouter, Colognesi, Daniele, Bafile, Ubaldo
A thorough analysis of the transverse current autocorrelation function obtained by molecular dynamics simulations of a dense Lennard-Jones fluid reveals that even such a simple system is characterized by a varied dynamical behavior with changing leng
Externí odkaz:
http://arxiv.org/abs/2206.10922
We review exact formalisms for describing the dynamics of liquids in terms of static parameters. We discuss how these formalisms are prone to suffer from imposing restrictions that appear to adhere to common sense but which are overly restrictive, re
Externí odkaz:
http://arxiv.org/abs/2104.08354
Publikováno v:
Phys. Rev. B 104, 085135 (2021)
Systems that have been prepared to undergo a second-order phase transition at zero Kelvin, the so-called quantum critical systems, appear to fall into two categories: (chemically) heavily-doped systems where the unusual properties can be related to a
Externí odkaz:
http://arxiv.org/abs/2104.03941
Publikováno v:
Phys. Rev. E 104, 034110 (2021)
We present the results of computer simulations on a class of percolative systems, called protected percolation, that violates the Harris criterion. The Harris criterion states whether the critical behavior at a phase transition from a disordered stat
Externí odkaz:
http://arxiv.org/abs/2104.03445
Protected percolation: a new universality class pertaining to heavily-doped quantum critical systems
We present the results of computer simulations on a class of percolative systems that forms a new universality class. We show the results for the critical exponents for this new class, inferred from simulations of two- and three-dimensional lattices
Externí odkaz:
http://arxiv.org/abs/2008.08258
Autor:
Montfrooij, Wouter, Heitmann, Tom, Qiu, Yiming, Watson, Shannon, Erwin, Ross, Chen, Wangchun, Zhao, Yang, Aronson, Meigan, Huang, Yinkai, de Visser, Anne
Publikováno v:
Phys. Rev. B 99, 195113 (2019)
Systems with embedded magnetic ions that exhibit a competition between magnetic order and disorder down to absolute zero can display unusual low temperature behaviors of the resistivity, susceptibility, and specific heat. Moreover, the dynamic respon
Externí odkaz:
http://arxiv.org/abs/1805.01913
Autor:
Heitmann, Tom, Lamsal, Jagat, Watson, Shannon, Erwin, Ross, Chen, Wangchun, Zhao, Yang, Montfrooij, Wouter
We have identified low-energy magnetic excitations in a doped quantum critical system by means of polarized neutron scattering experiments. The presence of these excitations could explain why Ce(Fe$_{0.76}$Ru$_{0.24}$)$_2$Ge$_2$ displays dynamical sc
Externí odkaz:
http://arxiv.org/abs/1610.01224
Autor:
Montfrooij, Wouter
We show that the position of the de Gennes minimum in scattering spectra, where the dynamics of liquids shows down, is given by a hard-sphere expression for a range of mono-atomic liquids that crystallize in a close packed structure. This expression
Externí odkaz:
http://arxiv.org/abs/1603.08799