Single crystal growth of the pyrochlores $R_2$Ti${}_2$O${}_7$ ($R$ = rare earth) by the optical floating-zone method

Abstract

We report a systematic study on the crystal growth of the rare-earth titanates $R_2$Ti${}_2$O${}_7$ ($R$ = Gd, Tb, Dy, Ho, Y, Er, Yb and Lu) and Y-doped Tb${}_{2-x}$Y${}_x$Ti${}_2$O${}_7$ ($x$ = 0.2 and 1) using an optical floating-zone method. High-quality single crystals were successfully obtained and the growth conditions were carefully optimized. The oxygen pressure was found to be the most important parameter and the appropriate ones are 0.1--0.4 MPa, depending on the radius of rare-earth ions. The growth rate is another parameter and was found to be 2.5--4 mm/h for different rare-earth ions. X-ray diffraction data demonstrated the good crystallinity of these crystals. The basic physical properties of these crystals were characterized by the magnetic susceptibility and specific heat measurements.

18 pages, 7 figures, 1 table, published in Journal Crystal Growth

References in corpus (2)

• Magnetic density of states at low energy in geometrically frustrated systems
• Magnetic order, magnetic correlations and spin dynamics in the pyrochlore antiferromagnet Er2Ti2O7

Cited by in corpus (16)

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• Experimental Insights into Ground State Selection of Quantum XY Pyrochlores
• Machine Learning Assisted Insight to Spin Ice Dy${}_2$Ti${}_2$O${}_7$
• Magnetically originated phonon-glass-like behavior in Tb_2Ti_2O_7 single crystal
• Effect of Chemical Pressure on the Crystal Electric Field States of Erbium Pyrochlore Magnets
• Crystal growth and characterization of the pyrochlore Tb${}_2$Ti${}_2$O${}_7$
• Fragile singlet ground state magnetism in pyrochlore osmates R2Os2O7 (R=Y and Ho)
• The pyrochlore Ho2Ti2O7: Synthesis, crystal growth and stoichiometry
• Low-temperature thermal conductivity of Dy_2Ti_2O_7 and Yb_2Ti_2O_7 single crystals
• Experimental identification of electric dipoles induced by magnetic monopoles in Tb2Ti2O7
• Low-temperature heat transport of the geometrically frustrated antiferromagnets R_2Ti_2O_7 (R = Gd and Er)
• Experimental evidence for field induced emergent clock anisotropies in the XY pyrochlore Er${}_2$Ti${}_2$O${}_7$
• Absence of long-range order in an $XY$ pyrochlore antiferromagnet Er${}_2$AlSbO${}_7$
• Anomalous Proximitized Transport in Metal/Quantum Magnet Heterostructure $\mathrm{B}{\mathrm{i}}_2\mathrm{I}{\mathrm{r}}_2{\mathrm{O}}_7/Y{\mathrm{b}}_2\mathrm{T}{\mathrm{i}}_2{\mathrm{O}}_7$
• Low-temperature specific heat and heat transport of Tb${}_2$Ti${}_{2-x}$Zr${}_x$O${}_7$ single crystals