Ultrasound attenuation of superfluid $^{3}$He in aerogel

Ultrathin MgB2 films fabricated on Al2O3 substrate by hybrid physical-chemical vapor deposition with high Tc and Jc

Umklapp frustration and field-theoretic approach to superconductivity

Umklapp scattering and electron pairing cutoff in BCS superconductors

Umklapp scattering of pairs in BCS superconductivity theory

Unambiguous evidence for nearly isotropic s-wave gap in the bulk of optimally electron-doped Nd_{1.85}Ce_{0.15}CuO$_{4-y}

Unambiguous probe of parity-mixing of Cooper pairs in noncentrosymmetric superconductors

Uncommonly High Upper Critical Field in the Superconducting KOs$_2$O$_6$ Pyrochlore

Unconventional Anisotropic s-Wave Superconducting Gaps of LiFeAs Iron-Pnictide Superconductor

Unconventional Bose-Einstein Condensations Beyond the "No-node" Theorem

Unconventional Bose-Einstein condensations from spin-orbit coupling

Unconventional dynamical covalency driven superconductivity in Nb doped SrTiO3

Unconventional electronic Raman spectra of borocarbide superconductors

Unconventional electronic reconstruction in undoped (Ba,Sr)Fe$_2$As$_2$ across the spin density wave transition

Unconventional Fulde-Ferrel-Larkin-Ovchinnikov states in spin-orbit coupled condensates: exact results

Unconventional high-temperature superconductivity from repulsive interactions: theoretical constraints

Unconventional interaction between vortices in a polarized Fermi gas

Unconventional isotope effects in the high-temperature cuprate superconductors

Unconventional Josephson signatures of Majorana bound states

Unconventional London penetration depth in Ba(Fe0.93Co0.07)2As2 single crystals