Determination of the magnetic structure of CePt${}_2$In${}_7$ by means of neutron diffraction

Abstract

The magnetic structure of the heavy fermion antiferromagnet CePt${}_2$In${}_7$ is determined using neutron diffraction. We find a magnetic wave vector ${\mathbf{q}}_M=(1/2,1/2,1/2)$, which is temperature independent up to $T_N=$ 5.5 K. A staggered moment of 0.45(1)${\mu }_B$ at 2 K resides on the Ce ion. The nearest-neighbor moments in the tetragonal basal plane are aligned antiferromagnetically. The moments rotate by 90${}^{\circ }$ from one CeIn${}_3$ plane to another along the $c$ axis. A much weaker satellite peak with an incommensurate magnetic wave vector ${\mathbf{q}}_M=(1/2,1/2,0.47)$ seems to develop at low temperature. However, the experimental data available so far are not sufficient to draw a definitive conclusion about the possible co-existence of commensurate and incommensurate magnetic structures in this material.

arXiv commentaccepted for publication in Phys. Rev. B Rapid. Comm

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Cited by in corpus (5)

• Investigation of the commensurate magnetic structure in heavy fermion CePt2In7 using magnetic resonant X-ray diffraction
• Successive magnetic transitions in heavy fermion superconductor Ce3PtIn11 studied by 115In nuclear quadrupole resonance
• Magnetic structure of Cd-doped CeIrIn${}_5$
• Determination of the magnetic q vectors in the heavy fermion superconductor Ce3PtIn11
• Quasi-two-dimensional Fermi surfaces with localized $f$ electrons in the layered heavy-fermion compound CePt${}_2$In${}_7$