Crystal structure and valence behavior of YbPdxGa11-x

Grin, Yu. N.; Hiebl, K.; Rogl, P.; Godart, C.; Alleno, E.

doi:10.1016/S0925-8388(96)02448-6

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Crystal structure and valence behavior of YbPd_xGa_11-x

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Grin, Y. N., Hiebl, K., Rogl, P., Godart, C., & Alleno, E. (1997). Crystal structure and valence behavior of YbPd_xGa_11-x. Journal of Alloys and Compounds, 252(1-2), 88-92. doi:10.1016/S0925-8388(96)02448-6.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-9181-3

Abstract

The ternary phase YbPdxGa11-x has been synthesized from the elements by high frequency argon melting. An extended homogeneous region at 600 degrees C has been established from X-ray powder data for 2.3 less than or equal to x less than or equal to 3.4. The crystal structure of YbPd3Ga8 has been derived from X-ray single crystal counter data: partially ordered BaHg11-type, space group Pm3m(O-h(1), No. 221), a= 8.4346(5)Angstrom:R-p = 0.054 for 176 independent reflections with I>2 sigma. YbPdxGa11-x samples are temperature independent Pauli-type paramagnets for x less than or equal to 3. Increasing the palladium content to x>3 leads to an enhanced f-d electron interaction, and a variation of the magnetic moment due to valence instabilities (4f(14)-->4f(13)) is established using X-ray absorption spectroscopy.