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Quantum criticality in CePt~1− x ~Ni~ x ~ due to hydrostatic and chemical pressure by Nadezda Bagrets; Veronika Fritsch; Kai Grube; Hilbert v. Löhneysen is a Physics and Astronomy article available to read on EtoBox.

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## Abstract We have investigated the possibility of tuning ferromagnetic CePt~1−__x__~Ni~__x__~ for $x = 0.85$ and 0.9 to a quantum critical point (QCP) by measuring the magnetization between 2 and 300 K on polycrystals under pressures up to 13 kbar. Thus we constructed a __T__~C~–__p__ phase diagram for CePt~1−__x__~Ni~__x__~ with $x = 0.85$. For the alloy with $x = 0.9$ we show that the ferromagnetic hysteresis loop at 2.5 K is completely suppressed by a hydrostatic pressure of 10.2 kbar. Our findings suggest that Ce(Pt:Ni) can be tuned to the QCP with the application of hydrostatic pressure at considerably lower pressures than pure CePt.

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Author

Nadezda Bagrets; Veronika Fritsch; Kai Grube; Hilbert v. Löhneysen

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 0370-1972)

Published

2010

Language

EN

Field

Physics and Astronomy (Physical Sciences)