Abstract
UIrGe crystallizes in the orthorhombic TiNiSi-type structure and orders antiferromagnetically below TN = 14.5 K. We report on resistance and magnetoresistance results on single-crystalline UIrGe with the current along the α-axis and the magnetic field applied along the b-axis under hydrostatic pressure up to 9 kbar. Application of pressure reduces TN and 48 kbar is estimated to suppress the antiferromagnetic ground state. In applied magnetic fields, two metamagnetic transitions occur at low temperatures, and the transition fields decrease slightly with increasing pressure. In comparison with other uranium compounds, the results are discussed in terms of moment instability and variation of the exchange due to increased 5f-ligand hybridization.
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Alsmadi, A. et al. (2001). Resistance and Magnetoresistance of UIrGe under High Pressure. In: Hochheimer, H.D., Kuchta, B., Dorhout, P.K., Yarger, J.L. (eds) Frontiers of High Pressure Research II: Application of High Pressure to Low-Dimensional Novel Electronic Materials. NATO Science Series, vol 48. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0520-3_35
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DOI: https://doi.org/10.1007/978-94-010-0520-3_35
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