Magnetic Excitations in the Shastry-Sutherland Magnet Holmium Tetraboride
We propose to investigate the magnetic excitations of HoB4 using IN5. Large single crystal samples of HoB4 have been prepared and characterised with magnetisation and specific heat measurements. Preliminary measurements of these samples using D10 and D7 at ILL have given some promising results. HoB4 shows a range of novel and unusual results believed to be due to the competition between the magnetic and quadrupolar interactions in this system, where the Ho ions form a lattice which is topologically equivalent to the Shastry-Sutherland lattice. This proposal is for the measurements in zero applied field. If successful we will extend them to investigate the nature of very intriguing field induced phases associated with the magnetisation pleateaux
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PETRENKO Oleg; BALAKRISHNAN Geetha; BRUNT Daniel and MUTKA Hannu. (2015). Magnetic Excitations in the Shastry-Sutherland Magnet Holmium Tetraboride. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1429
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