978 citations
- Universidade de São PauloBR26 papers
- University of California, Los AngelesUS16 papers
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- Argonne National LaboratoryUS12 papers
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- Indiana University BloomingtonUS12 papers
- Institute for High Energy PhysicsES12 papers
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20 papers · 1 filter
Crystal structures and magnetic order of La{0.5+delta}A{0.5-delta}Mn{0.5+epsilon}Ru{0.5-epsilon}O{3} (A= Ca, Sr, Ba): Possible orbital glass ferromagnetic state
Eduardo Granado, Qingzhen Huang, Jeff W. Lynn +2
The crystallographic and magnetic properties of La{0.5+delta}A{0.5-delta}Mn{0.5+epsilon}Ru{0.5-epsilon}O{3} (A= Ca, Sr, Ba) were investigated by means of neutron powder diffraction…
Motion of Coloured Particles in Solitons of the O(3) Non-Linear Model
Rafael M. Fernandes, Patricio S. Letelier
We propose a consistent expression for the relativistic quadri-force referring to the classical interaction between a coloured particle and a scalar field multiplete. General aspec…
Linear and Circularly Polarized Light to Study Anisotropy and Resonant Scattering in Magnetic Thin Films
Helio C. N. Tolentino, Julio C. Cezar, Narcizo M. Souza-Neto +1
The remarkable polarization properties of the synchrotron light have lead to the advent of modern synchrotron-related spectroscopic studies with angular and/or magnetic selectivity…
Spin Liquid Behavior in Electronic Griffiths Phases
D. Tanaskovic, V. Dobrosavljevic, E. Miranda
We examine the interplay of the Kondo effect and the RKKY interactions in electronic Griffiths phases using extended dynamical mean-field theory methods. We find that sub-Ohmic dis…
Dissipative dynamics of topological defects in frustrated Heisenberg spin systems
V. Juricic, L. Benfatto, A. O. Caldeira +1
We study the dynamics of topological defects of a frustrated spin system displaying spiral order. As a starting point we consider the SO(3) nonlinear sigma model to describe long-w…
Tunnelling Through Two Barriers
Stefano De Leo, Pietro Rotelli
Recent studies of the tunnelling through two opaque barriers claim that the transit time is independent of the barrier widths and of the separation distance between the barriers. W…