188 citations · 476 across the 9 of their papers we have counts for
9 papers
Time-reversal symmetry breaking in Re-based superconductors
T. Shang, M. Smidman, S. K. Ghosh +15
To trace the origin of time-reversal symmetry breaking (TRSB) in Re-based superconductors, we performed comparative muon-spin rotation/relaxation (SR) studies of superconducting…
Low temperature magnetic properties of Nd2Ru2O7
S. T. Ku, Dinesh Kumar, M. R. Lees +9
We present magnetic susceptibility, heat capacity, and neutron diffraction measurements of polycrystalline Nd2Ru2O7 down to 0.4 K. Three anomalies in the magnetic susceptibility me…
Magnetic Excitations in the Ground State of
Viviane Pecanha-Antonio, Erxi Feng, Yixi Su +7
We report an extensive study on the zero field ground state of a powder sample of the pyrochlore . A sharp heat capacity anomaly that labels a low temperature…
Mapping the first order magnetic transition in YbTiO
E. Lhotel, S. R. Giblin, M. R. Lees +3
The very nature of the ground state of the pyrochlore compound YbTiO is much debated, as experimental results demonstrate evidence for both a disordered or a long-range…
Static magnetic moments revealed by muon spin relaxation and thermodynamic measurements in quantum spin ice YbTiO
Lieh-Jeng Chang, Martin R. Lees, Isao Watanabe +3
We present muon spin relaxation (SR) and specific-heat versus temperature measurements on polycrystalline and single-crystal samples of the pyrochlore magnet YbTi…
Low-temperature muon spin rotation studies of the monopole charges and currents in Y doped Ho2Ti2O7
L. J. Chang, M. R. Lees, G. Balakrishnan +2
In the ground state of Ho2Ti2O7 spin ice, the disorder of the magnetic moments follows the same rules as the proton disorder in water ice. Excitations take the form of magnetic mon…
Higgs transition from a magnetic Coulomb liquid to a ferromagnet in Yb_2Ti_2O_7
Lieh-Jeng Chang, Shigeki Onoda, Yixi Su +5
In a class of frustrated magnets known as spin ice, magnetic monopoles emerge as classical defects and interact via the magnetic Coulomb law. With quantum-mechanical interactions,…
Graphene quantum dots for valley-based quantum computing: A feasibility study
G. Y. Wu, N. -Y. Lue, L. Chang
At the center of quantum computing1 realization is the physical implementation of qubits - two-state quantum information units. The rise of graphene2 has opened a new door to the i…
Magnetic correlations in spin ice Ho2-xYxTi2O7 as revealed by neutron polarization analysis
L. J. Chang, Y. Su, Y. -J. Kao +6
We present single-crystal neutron-diffuse-scattering measurements with polarization analysis on the spin ice Ho2-xYxTi2O7 (x = 0, 0.3, and 1). At 2 K, the spin flip scattering patt…