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8 papers · 2 filters
Magnetic order in the pseudogap phase of high- superconductors
B. Fauque, Y. Sidis, V. Hinkov +4
One of the leading issues in high- superconductors is the origin of the pseudogap phase in underdoped cuprates. Using polarized elastic neutron diffraction, we identify a nove…
Field-induced non-Fermi-liquid resistivity of stoichiometric YbAgGe single crystals
P. G. Niklowitz, G. Knebel, J. Flouquet +2
We have investigated hexagonal YbAgGe down to 70 mK by measuring the magnetic-field and temperature dependence of the resistivity rho of single crystals in fields up to 14 T. Our r…
Magnetic density of states at low energy in geometrically frustrated systems
A. Yaouanc, P. Dalmas de Reotier, V. Glazkov +6
Using muon-spin-relaxation measurements we show that the pyrochlore compound Gd2Ti2O7, in its magnetically orderered phase below ~ 1 K, displays persistent spin dynamics down to te…
Quantum Critical Point of Itinerant Antiferromagnet in Heavy Fermion
Hiroaki Kadowaki, Yoshikazu Tabata, Masugu Sato +3
A quantum critical point (QCP) of the heavy fermion Ce(Ru_{1-x}Rh_x)_2Si_2 (x = 0, 0.03) has been studied by single-crystalline neutron scattering. By accurately measuring the dyna…
Artificial scaling laws of the dynamical magnetic susceptibility in heavy-fermion systems
W. Knafo, S. Raymond
We report here how artificial, thus erroneous, scaling laws of the dynamical magnetic susceptibility can be obtained when data are not treated carefully. We consider the example of…
Direct Observation of Quadrupolar Excitons in the Heavy-Fermion Superconductor PrOsSb
K. Kuwahara, K. Iwasa, M. Kohgi +8
We report inelastic neutron scattering experiments performed to investigate the low energy magnetic excitations on single crystals of the heavy-fermion superconductor PrOsSb$…