The magnetic field dependence of the director state in the quantum spin hyperkagome compound Yb3Ga5O12
The 2D antiferromagnetic Heisenberg model on the kagome lattice is the archetypal frustrated system and remains highly studied. However, in recent years, 3D pyrochlore or garnet lattices with significant anisotropy have shown emergent states of matter such as monopole excitations in spin ice materials and long range multipolar director states in Gd3Ga5O12 (GGG). These phenomena reveal that the combination of a 3 dimensional crystal structure and magnetic frustration are powerful indicators of exotic states of matter. The aim of this proposal is to study the magnetic field behaviour of the low lying spin waves in single crystal Yb3Ga5O12 (YbGG), isostructural to GGG, in the short ranged ordered director state. In YbGG the director state is subtly different to the GGG counterpart and is particularly interesting since Yb3+ ions is an effective S = 1/2 moment thus enabling quantum effects to manifest. We intend to employ IN5 to access the Q dependence of the low lying excitations in YbGG at 100 mK and for 0 < B < 3.5 T. Perturbing the director state of YbGG will greatly increase our understanding of the director state and determine the effect of quantum spins on this state.
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The recommended format for citing this dataset in a research publication is in the following format:
DEEN Pascale Petronella; FJELLVAG Ingrid Marie; LEFMANN Kim; LHOTEL Elsa; OLLIVIER Jacques; RAYMOND Stephane; RIORDAN Edward; Lise Ørduk Sandberg and YNILL LENANDER Emma. (2021). The magnetic field dependence of the director state in the quantum spin hyperkagome compound Yb3Ga5O12. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-05-804
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