Field induced long range magnetic order and percolation transition in Y2Cr1-xGaxSbO7
Magnetism in pyrochlore oxides A2B2O7 has been studied intensively over the past decades. The complicated geometry gives rise to frustrated ground states, and this has led to discoveries such as spin ice. In Y2Cr1-xGaxSbO7 the Cr3+ is the magnetic ion, and is diluted by the presence of both the Sb5+ and the Ga3+. A magnetic field induced transition is detected in Y2Cr1-xGaxSbO7 and this transition is affected by increasing x. This is presumed to be due to a percolation transition happening when x is between 0.2 and 0.4, fitting the theoretically predicted value x_c = 0.24. We wish to establish the magnetic order of Y2Cr1-xGaxSbO7 neutron powder diffraction under different field and track its evolution under different doping value.
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SHEN Lingjia; BLACKBURN Elizabeth; Thomas C. Hansen and RIYAT Randeep. (2014). Field induced long range magnetic order and percolation transition in Y2Cr1-xGaxSbO7. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-31-2332
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