Origin of the 60K plateau in YBa_2Cu_3O_6+x

Origin of the anomalous Hall Effect in overdoped n-type cuprates: current vertex corrections due to antiferromagnetic fluctuations

Origin of the anomalous low temperature upturn in resistivity in the electron-doped cuprates

Origin of the Hall conductivity below the vortex-lattice melting in twinned single crystal YBCO

Origin of the high DC transport critical current density for the MgB2 superconductor

Origin of the high-energy kink or the waterfall effect in the photoemission spectrum of the ${\rm Bi_2Sr_2CaCu_2O_8}$ high-temperature superconductor

Origin of the Inverse Spin Switch Effect in Superconducting Spin Valves

Origin of the material dependence of $T_c$ in the single-layered cuprates

Origin of the peak-dip-hump structure in the photoemission spectra of Bi2212

Origin of the photoemission final-state effects in Bi2Sr2CaCu2O8 by very-low-energy electron diffraction

Origin of the Pseudogap in High-Temperature Cuprate Superconductors

Origin of the pseudogap phase: Precursor superconductivity versus a competing energy gap scenario

Origin of the Quasiparticle Peaks of Spectral Functions in High $T_c$ Cuprates

Origin of the Quasiparticle Peaks of Spectral Functions in High $T_c$ Cuprates

Origin of the spin density wave instability in AFe$_2$As$_2$ (A=Ba, Sr) as revealed by optical spectroscopy

Origin of the structural phase transition at 130 K in BaNi$_2$As$_2$: a combined study of optical spectroscopy and band structure calculations

Origin of the Superconductivity in the Y-Sr-Ru-O and Y-Sr-Cu-O Systems

Origin of the T$_c$ enhancement in heterostructure cuprate superconductors

Origin of the ~150 K Anomaly in LaOFeAs; Competing Antiferromagnetic Superexchange Interactions, Frustration, and Structural Phase Transition

Origin of time reversal symmetry breaking in Y(1-y)Ca(y)Ba(2)Cu(3)O(7-x)