Theoretical and Experimental Aspects of Valence Fluctuations and Heavy Fermions

Section 1 - Invited Papers.- Where are we in the mixed valence story?.- The resonating valence bond state and high-Tc superconductivity in La2CuO4+.- Actinides and heavy fermions.- Cooperative phenomena in the heavy fermion systems UBe13 and U1-x ThxBe13.- Phase transitions in heavy-electron materials.- Understanding photoemission spectra in uranium based heavy fermion systems.- Experiments on the heavy electron super conductors UBe13 and URu2Si2.- Low temperature properties of CeCu5 and related compounds.- Phenomenological relationships in heavy fermi liquids.- The coherent state in the heavy fermion CeCu6.- Correlations in heavy fermions.- Heavy electron metals and anisotropic superconductors.- Microscopic theory of strongly correlated fermi systems.- Monte carlo simulation of magnetic impurities in metals.- Fermi surfaces of mixed valent and heavy fermion metals.- Effect of f-d coulomb correlations and many-body resonance in intermediate valence systems: f-photoemission.- Pressure dependence of the specific heat of heavy-fermion compounds.- Response of Kondo lattice systems to pressure.- Heavy fermions and coherent and incoherent valence fluctuations in cerium systems.- Coherence in CePd3.- Phase diagram of the Kondo lattice.- Direct 4f band model in CeRh3B2.- The fermi surface of CeSb.- X-ray absorption spectroscopy on mixed-valent materials.- The role of compound electronic structure in Ce-valence instabilities M. Croft, R. Neifeld, B. Qi, G. Liang, ,I. Perez, S. Gunapala, F. Lu,.- Correlation between valence and electronic structure as studied by EXAFS in RM2X2 compounds.- Mixed valence in chemistry.- The interatomic intermediate valence state of insulating correlated Oxides CeO2, PrO2 and TbO2.- High-energy spectroscopy of CeF4: convalency versus mixed valency.- Raman and Brillouin scattering spectroscopy of intermediate valence and heavy fermion compounds.- Far-infrared properties of intermediate valence-and heavy fermion materials.- Spin correlations in heavy fermion systems.- Paramagnetic scattering from some Ce and Yb based valence fluctuation: Kondo-lattice systems.- Nuclear magnetic resonance in heavy fermion systems.- 151Eu Mössbauer studies of some valence fluctuating systems.- Effects of thorium doping in (U,Th)Pt3, (U,Th)Be13.- Low temperature magneto transport in Yb1-xTmxS.- Lattice instabilities in heavy fermion superconductors D. Wohlleben (see page 707).- Section 2 - Contributory Papers.- Nuclear magnetic resonance study of the heavy-fermion system URu2Si2.- Resistivity studies on UM2Si2 (M = Rh, Ir, Ru, Os).- Low-temperature specific heat of UBe13.- Normal state magnetic behavior of (U1-xREx)Be13 pseudobinaries.- Raman scattering from spin fluctuations and phonons in UPt3.- High pressure investigations on the heavy fermion material UPt3 at 300 K.- Microscopic study of magnetism in heavy electron U2Zn17 by ?+SR.- f-band narrowing in uranium intermetallics.- Heavy electron behavior in the system UPd2-xAu Sn (0 ? x ? 2).- Magnetoresistive effects in the upper critical fields of heavy fermion superconductors.- The role of Re in the magnetic properties of U(Fe1-x Re)2.- Manifestation of impurity-like behaviour of 5f in electron spectroscopy of UxY1-x B4.- Soft X-ray absorption spectra of uranium intermetallics.- L3 X-ray absorption in compounds of U, Np and Pu.- Pressure-induced electronic structure changes in USb.- Resistivity and susceptibility studies on ceCu6-xAux alloys.- LIII-edge study of the CeCu2-x Nix Si2 series of compounds.- Magnetization studies of CeCu2Si2-xGex alloys.- Evolution with pressure of a heavy mass ground state in chemically expanded CeRu2Si2.- Competition of magnetism and Kondo effect in (Ce,Y)Pd2Si2 compounds.- Electrical behaviour of heavy electron compounds.- Field Induced magnetic saturation effects in (Ce-La)Ru2Si2 and (Ce-Y)Ru2Si2 Kondo lattices.- Influence of substitutions on the low-temperature behaviour of CePd3.- Pressure dependence of the resistivity of Ce3Al.- A new magnetic transition in Ce(Fe1-xCox)2, x < 0.3.- Magnetic behaviour of isolated Sm ions in Y-Ce and ?-Ce.- Kondo effect in the (Y,Tm)S dilute system.- Crystallographic and magnetic investigations in the pseudoternary alloy system Ce(Ir1-x Rhx)2Si2.- Physical properties of CeM2Si2 (M = Mn, Fe, Co, Ni, Cu).- Spin fluctuation effects in germanium doped YbPd2Si2: LIII-edge, susceptibility and resistivity studies.- Magnetic susceptibility of YbCuGa, YbAgGa and YbAuGa compounds.- Magnetic behaviour of CeRh3-x Irx B2 alloy system.- Structure and magnetic properties of CeIr3B2-x Six system.- Evidence for spin fluctuations in the mixed valent superconductors Ce(Ru1-xOsx)3B9.- Effect of exchange field on the anomalous behaviour of 4f state of Ce in Ce1-xGdxRh3B2.- Coexistence of intermediate valence Ce and Ce3+ in the Ce2Sn5 compound.- XANES of some Ce mixed-valent compounds.- The Anderson lattice and universal properties of heavy fermion systems.- On a mean field theory for superconductivity in highly correlated electron systems.- Superconductivity in heavy electron systems: Axial or polar state?.- Some remarks on the Gutzwiller wave function.- Properties of the Gutzwiller wavefunction.- Quantum Monte Carlo simulation of Anderson lattice in one dimension.- Energetics of mixed valent systems.- Spatial correlations around magnetic impurities in metals.- Spin-spin correlations in the 2-impurity Kondo problem.- Pairing in Anderson Model.- Thermodynamics of the Coqblin-Schrieffer model with crystal fields.- Electronic quasiparticles in the Anderson lattice: atomic limit versus hybridized band picture.- First principles calculation of model Hamiltonian parameters for hybridizing cerium systems.- Crystal fields and the quadrupolar Kondo effect in a model Uranium impurity.- Upper and lower bounds on the single-impurity-Anderson-model.- On Hamiltonian functional integrals with constraints on auxiliary boson states.- Collective modes of the superconducting state in coexistence with other ordered states.- A time dependent pseudopotential, and valence fluctuations.- A simple but rigorous model for valence mixing: energy levels, thermodynamic properties and phase diagrams.- Electronic structure of Ce compounds.- Electron transport in mixed valence and heavy fermion metals.- The breakdown of normal magnetic order in rare earth metals.- High temperature specific heat of mixed-valence compounds.- Tm- A three level mixed valent system.- Ferromagnetic order in 4f-systems with valence instabilities.- Effect of excitonic correlations on magnetic order in mixed valence 4f systems.- Acoustic attenuation in Kondo lattice.- Linewidths in neutron scattering spectra of non-cubic cerium Kondo compounds.- Valence change in praseodymium (Pr) and ytterbium (Vb) under high pressure.- X-ray diffraction study on CeAl3 up to 25 GPa.- High pressure studies on some cerium compounds.- Valence change in amorphous Yb-Pd alloys.- Pressure studies on the valence transition in Sm4Bi3.- Magnetically induced valence transition in Eu1-xSmxS.- On the phase transformation Ce? $$\leftrightarrows$$ Ce?.- Pressure induced valence transition in cerium studied by positron annihilation spectroscopy.- Study of CeNi2 transformation upon hydrogen absorption.- Magnetization and 119 Sn Mossbauer studies in the intermediate valence system EuPd2(Si1-x Snx)2; 0