Conveners
W1-9 Quantum Magnetism (DCMMP) | Magnétisme quantique (DPMCM)
- Takashi Imai (McMaster University)
Traditional NMR data analysis techniques, such as the stretched exponential fit, are used to determine the sample-averaged nuclear spin-lattice relaxation rate $1/T_1$. However, they face difficulty when dealing with heterogeneous materials with NMR signals coming from distinct local environments, especially those with large, overlapping distributions of their Knight shifts and $1/T_1$.
To...
The putative quantum spin liquid (QSL) state exhibited by YbMgGaO$_4$ is largely
ascribed to the quasi-2D triangular lattice which the magnetic Yb$^{3+}$ moments
decorate in concert with anisotropic exchange and disorder in neighbouring
disordered Mg$^{2+}$/Ga$^{3+}$ bilayers [1,2,3]. We present new inelastic neutron
scattering (INS) measurements on YbMgGaO$_4$ as well as its isostructural...
The Ce3+ pseudospin-½ degrees of freedom in the pyrochlore magnet Ce2Zr2O7 are known to possess dipole-octupole character, making it a candidate for novel quantum spin liquid ground states at low temperatures. We’ve measured the heat capacity of Ce2Zr2O7 and fit the result to a quantum numerical linked cluster (NLC) calculation that allows estimates for the terms in the near-neighbour XYZ...
Quantum spin liquids (QSLs) may roughly be defined as states possessing sufficiently high quantum fluctuations that they impede long range magnetic order. Various electron interactions are currently being studied in order to physically realize such states in condensed matter systems since they can host fractionalized excitations. The purpose of our study is to examine two interactions...
A fascinating class of frustrated magnetic systems are the so-called Kitaev materials, typically composed of heavy transition metals, that realize Kitaev’s honeycomb model and its variants — exactly solvable models with quantum spin liquid ground states. Finding ways to control the competition between the spin liquid phase and the nearby magnetic phases is crucial in advancing our...
