This title appears in the Scientific Report :
2023
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevResearch.5.013058 in citations.
Please use the identifier: http://hdl.handle.net/2128/34465 in citations.
Incommensurate antiferromagnetic order in CePtAl 3
Incommensurate antiferromagnetic order in CePtAl 3
We report on a neutron diffraction study of single-crystal CePtAl3 complemented by measurements of the specific heat under applied magnetic field. Below TN ≈ 3 K, CePtAl3 develops incommensurate antiferromagneticorder with a single modulation vector k = (0.676 0 0). Residual magnetic scattering inte...
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Please use the identifier: http://hdl.handle.net/2128/34465 in citations.
We report on a neutron diffraction study of single-crystal CePtAl3 complemented by measurements of the specific heat under applied magnetic field. Below TN ≈ 3 K, CePtAl3 develops incommensurate antiferromagneticorder with a single modulation vector k = (0.676 0 0). Residual magnetic scattering intensity above TN and a broadening of the specific heat anomaly at TN may be consistently described in terms of a Gaussiandistribution of transition temperatures with a standard deviation σ ≈ 0.5 K. The distribution of TN may be attributed to the observation of occupational and positional disorder between the Pt and Al sites consistent withstructural information inferred from neutron diffraction. Measurements under magnetic field reveal changes of the magnetic domain populations when the field is applied along the [0 1 0] direction consistent with a transitionfrom cycloidal to amplitude-modulated magnetic order ∼2.5 T. |