Enhancement of the critical temperature of HgBa2CuO4+δ by applying uniaxial and hydrostatic pressure: Implications for a universal trend in cuprate superconductors - F. Hardy; N.J. Hillier; C. Meingast; D. Colson; Y. Li; N. Barišić; G. Yu; X. Zhao; M. Greven; J.S. Schilling (Physical Review Letters, 2010)