Design, calibration, and performance of a uniaxial pressure cell for neutron scattering studies of quantum magnetism

L. I. Sandberg; M. L. Haubro; K. M.L. Krighaar; R. Edberg; I. M.B. Fjellvåg; M. Guthrie; A. T. Holmes; L. Mangin-Thro; A. Wildes; P. Henelius; K. Lefmann; P. P. Deen

doi:10.1063/5.0152136

Design, calibration, and performance of a uniaxial pressure cell for neutron scattering studies of quantum magnetism

L. I. Sandberg, M. L. Haubro, K. M.L. Krighaar, R. Edberg, I. M.B. Fjellvåg, M. Guthrie, A. T. Holmes, L. Mangin-Thro, A. Wildes, P. Henelius, K. Lefmann, P. P. Deen

Materials Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We provide an overview of a pressure cell designed to apply uniaxial pressure to single crystals for the study, by neutron scattering techniques, of strongly correlated magnetic systems and, in particular, quantum magnets. A detailed overview of the pressure cell components, their requirements, and links to the scientific and technical specifications are presented. The pressure cell is able to accommodate a 200 mm³ single crystal that can be pressurized up to 2 GPa at cryogenic temperatures. The pressure cell is consistent with the requirements of inelastic neutron scattering and, importantly, neutron polarization analysis. A particular strength of the uniaxial pressure cell is the highly uniform and low background for a wide scattering angle of 360° horizontally and ±20° vertically. We show the performance of the uniaxial pressure cell using a relevant neutron scattering instrument, the polarized diffuse scattering instrument, D7. The experiments confirm that the cell complies with the scientific and technical requirements. This uniaxial pressure cell will provide a useful additional tool in the sample environment suite available for the study of quantum magnetism.

Original language	English
Article number	103901
Journal	Review of Scientific Instruments
Volume	94
Issue number	10
DOIs	https://doi.org/10.1063/5.0152136
State	Published - Oct 1 2023

Funding

L.Ø.S, I.M.B.B., and R.E. were supported by Nordforsk through the Nordforsk project Grant No. 82248, “Magnetic Frustration Under Pressure.” We thank J. Oechsle, K.-E. Nielsen, D. W. Wistisen, and K. Theodor of the Niels Bohr Institute and Lauritz Saxtrup for excellent technical support and insight in developing the pressure cell. We thank C. Payne and J. Maurice for carefully providing the Cd shielding for the pressure cell. We thank the ILL for providing beam time for the neutron scattering measurements on D7, which were also supported by the Danish Agency for Innovation and Research through DANSCATT, Grant No. 7129-00003B.

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Sandberg, L. I., Haubro, M. L., Krighaar, K. M. L., Edberg, R., Fjellvåg, I. M. B., Guthrie, M., Holmes, A. T., Mangin-Thro, L., Wildes, A., Henelius, P., Lefmann, K., & Deen, P. P. (2023). Design, calibration, and performance of a uniaxial pressure cell for neutron scattering studies of quantum magnetism. Review of Scientific Instruments, 94(10), Article 103901. https://doi.org/10.1063/5.0152136

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abstract = "We provide an overview of a pressure cell designed to apply uniaxial pressure to single crystals for the study, by neutron scattering techniques, of strongly correlated magnetic systems and, in particular, quantum magnets. A detailed overview of the pressure cell components, their requirements, and links to the scientific and technical specifications are presented. The pressure cell is able to accommodate a 200 mm3 single crystal that can be pressurized up to 2 GPa at cryogenic temperatures. The pressure cell is consistent with the requirements of inelastic neutron scattering and, importantly, neutron polarization analysis. A particular strength of the uniaxial pressure cell is the highly uniform and low background for a wide scattering angle of 360° horizontally and ±20° vertically. We show the performance of the uniaxial pressure cell using a relevant neutron scattering instrument, the polarized diffuse scattering instrument, D7. The experiments confirm that the cell complies with the scientific and technical requirements. This uniaxial pressure cell will provide a useful additional tool in the sample environment suite available for the study of quantum magnetism.",

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Sandberg, LI, Haubro, ML, Krighaar, KML, Edberg, R, Fjellvåg, IMB, Guthrie, M, Holmes, AT, Mangin-Thro, L, Wildes, A, Henelius, P, Lefmann, K & Deen, PP 2023, 'Design, calibration, and performance of a uniaxial pressure cell for neutron scattering studies of quantum magnetism', Review of Scientific Instruments, vol. 94, no. 10, 103901. https://doi.org/10.1063/5.0152136

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AU - Edberg, R.

AU - Fjellvåg, I. M.B.

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AU - Holmes, A. T.

AU - Mangin-Thro, L.

AU - Wildes, A.

AU - Henelius, P.

AU - Lefmann, K.

AU - Deen, P. P.

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Design, calibration, and performance of a uniaxial pressure cell for neutron scattering studies of quantum magnetism

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