de Haas-van Alphen measurement of the antiferromagnet URhIn${}_5$

Abstract

We report on the results of a de Haas-van Alphen (dHvA) measurement performed on the recently discovered antiferromagnet URhIn${}_5$ ($T_N$ = 98 K), a 5\textit{f}-analogue of the well studied heavy fermion antiferromagnet CeRhIn${}_5$. The Fermi surface is found to consist of four surfaces: a roughly spherical pocket $\beta$, with $F_{\beta }\simeq 0.3$ kT; a pillow-shaped closed surface, $\alpha$, with $F_{\alpha }\simeq 1.1$ kT; and two higher frequencies ${\gamma }_1$ with $F_{{\gamma }_1}\simeq 3.2$ kT and ${\gamma }_2$ with $F_{{\gamma }_2}\simeq 3.5$ kT that are seen only near the \textit{c}-axis, and that may arise on cylindrical Fermi surfaces. The measured cyclotron masses range from 1.9 $m_e$ to 4.3 $m_e$. A simple LDA+SO calculation performed for the paramagnetic ground state shows a very different Fermi surface topology, demonstrating a need for more advanced electronic structure calculations.

References in corpus (2)

• Hidden Order Behaviour in URu2Si2 (A Critical Review of the Status of Hidden Order in 2014)
• The Fermi surface and f-valence electron count of UPt3

Cited by in corpus (1)

• Quasi-two-dimensional Fermi surfaces of the antiferromagnet U${}_2$RhIn${}_8$ revealed by de Haas-van Alphen measurements