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Time-reversal symmetry-breaking superconductivity in Sr2RuO4
Although the properties of most superconducting materials are well described by the theory of Bardeen, Cooper and Schrieffer (BCS), considerable effort has been devoted to the search for exoticExpand
Condensation, excitation, pairing, and superfluid density in high-Tc superconductors: the magnetic resonance mode as a roton analogue and a possible spin-mediated pairing
To find a primary factor determining T c and a pairing mechanism in high-T c cuprates, we combine the muon spin relaxation results on n s /m* (superconducting carrier density/effective mass),Expand
Muon spin relaxation studies of incommensurate magnetism and superconductivity in stage-4 La2CuO4.11 and La1.88Sr0.12CuO4
We report muon spin relaxation (μSR) measurements using single crystals of oxygen-intercalated stage-4 La 2 CuO 4 . 1 1 (LCO:4.11) and La 1 . 8 8 Sr 0 . 1 2 CuO 4 (LSCO:0.12), in which neutronExpand
Superconductivity in a unique type of copper oxide
  • W. M. Li, J. F. Zhao, +20 authors C. Jin
  • Physics, Medicine
  • Proceedings of the National Academy of Sciences
  • 20 May 2019
High-Tc superconductivity in a cuprate Ba2CuO4-y is reported with two unique features: an exceptionally compressed local octahedron and heavily overdoped hole carriers, in sharp contrast to the favorable criteria for all previously known cuprate superconductors. Expand
Unconventional superconductivity in Sr2RuO4
Abstract We have performed ZF-μSR measurements of Sr2RuO4 and have observed a spontaneous magnetic field below Tc. This observation, combined with other symmetry considerations demonstrates thatExpand
Dynamic properties of a diluted pyrochlore cooperative paramagnet (Tb(p)Y(1-p))2Ti2O7.
The major finding is that paramagnetic fluctuations prevail as T-->0 for all values of p, and that they are sensitive to dilution, indicating a cooperative spin motion. Expand
Muon Spin Rotation/Relaxation Measurements of the Noncentrosymmetric Superconductor Mg10Ir19B16
We have searched for time-reversal symmetry breaking fields in the non-centrosymmetric superconductor Mg$_{10}$Ir$_{19}$B$_{16}$ via muon spin relaxation in zero applied field, and we measured theExpand
Bose-Einstein to BCS crossover picture for high-Tc cuprates
Abstract Combining (1) the universal correlations between Tc and n s /m ∗ (superconducting carrier density/effective mass) and (2) the pseudo-gap behavior in the underdoped region, we obtain aExpand
New diluted ferromagnetic semiconductor with Curie temperature up to 180 K and isostructural to the '122' iron-based superconductors.
The synthesis of a new diluted magnetic semiconductor is reported, which is isostructural to the 122 iron-based superconductors with the tetragonal ThCr( 2)Si(2) (122) structure, which makes them promising for the development of multilayer functional devices. Expand
Magnetic-field penetration depth in K3C60 measured by muon spin relaxation
THE discovery1–3 of superconductivity in C60 doped with the alkali metals potassium and rubidium has introduced a new family of three-dimensional molecular superconductors4. The potassium-dopedExpand