Polarisation of low-energy excitations in a bond-quadrupolar spin liquid
Spin-nematic quantum ground states are intensely studied theoretically. LiCuVO4 is a quasi-one dimensional spin 1/2 ferromagnet with antiferromagnetic next-nearest neighbour interactions, and frustrated interchain interactions. It displays a high-field phase with field-parallel incommensurate short-range dipolar order and a 2d-XY like heat capacity anomaly upon entering this phase. We have evidenced this phase to be of a new bond-nematic type. We wish to test precise theoretical predictions concerning the polarisation of the four low-energy modes. We therefore ask for 8 days on IN12 equipped with 12T magnet and dilution insert, polarised neutrons and polarisation analysis.
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ENDERLE Mechthild; FAK Bjorn; R. K. Kremer and SCHMIDT Wolfgang F. (2015). Polarisation of low-energy excitations in a bond-quadrupolar spin liquid. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-03-1708
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