Suppression of magnetic order before the superconducting dome in MnP

Shin ichiro Yano; Diane Lançon; Henrik M. Rønnow; Thomas C. Hansen; Eric Ressouche; Navid Qureshi; Bachir Ouladdiaf; Jason S. Gardner

doi:10.7566/JPSJ.87.023703

Suppression of magnetic order before the superconducting dome in MnP

Shin ichiro Yano, Diane Lançon, Henrik M. Rønnow, Thomas C. Hansen, Eric Ressouche, Navid Qureshi, Bachir Ouladdiaf, Jason S. Gardner

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7 Scopus citations

Abstract

We have performed neutron diffraction experiments on the manganese superconductor, MnP, under applied pressure. Higher harmonics of the previously reported double helix (2δ and 3δ) at ambient pressure were observed and a new magnetic phases was discovered as hydrostatic pressure was applied to a polycrystalline sample below the pressure required to induce superconductivity. The double helix magnetic structure is suppressed by 0.7 GPa. A new incommensurate magnetic structure with propagation vector ~(0:25; 0:25; 0:125) was found at 1.5 GPa. The application of higher pressures results in the quenching of the incommensurate phase and broad, diffuse magnetic scattering develops before the superconducting phase. Single crystal studies complement the polycrystalline data confirming the magnetic propagation vector in the low pressure phase.

Original language	English
Article number	023703
Journal	Journal of the Physical Society of Japan
Volume	87
Issue number	2
DOIs	https://doi.org/10.7566/JPSJ.87.023703
State	Published - 2018
Externally published	Yes

Funding

These experiments at ILL, France were supported in part by the Ministry of Science and Technology, Taiwan under Grant MOST103-2739-M-213-001-MY3. Acknowledgment These experiments at ILL, France were supported in part by the Ministry of Science and Technology, Taiwan under Grant MOST103-2739-M-213-001-MY3.

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title = "Suppression of magnetic order before the superconducting dome in MnP",

abstract = "We have performed neutron diffraction experiments on the manganese superconductor, MnP, under applied pressure. Higher harmonics of the previously reported double helix (2δ and 3δ) at ambient pressure were observed and a new magnetic phases was discovered as hydrostatic pressure was applied to a polycrystalline sample below the pressure required to induce superconductivity. The double helix magnetic structure is suppressed by 0.7 GPa. A new incommensurate magnetic structure with propagation vector ~(0:25; 0:25; 0:125) was found at 1.5 GPa. The application of higher pressures results in the quenching of the incommensurate phase and broad, diffuse magnetic scattering develops before the superconducting phase. Single crystal studies complement the polycrystalline data confirming the magnetic propagation vector in the low pressure phase.",

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AU - Yano, Shin ichiro

AU - Lançon, Diane

AU - Rønnow, Henrik M.

AU - Hansen, Thomas C.

AU - Ressouche, Eric

AU - Qureshi, Navid

AU - Ouladdiaf, Bachir

AU - Gardner, Jason S.

PY - 2018

Y1 - 2018

N2 - We have performed neutron diffraction experiments on the manganese superconductor, MnP, under applied pressure. Higher harmonics of the previously reported double helix (2δ and 3δ) at ambient pressure were observed and a new magnetic phases was discovered as hydrostatic pressure was applied to a polycrystalline sample below the pressure required to induce superconductivity. The double helix magnetic structure is suppressed by 0.7 GPa. A new incommensurate magnetic structure with propagation vector ~(0:25; 0:25; 0:125) was found at 1.5 GPa. The application of higher pressures results in the quenching of the incommensurate phase and broad, diffuse magnetic scattering develops before the superconducting phase. Single crystal studies complement the polycrystalline data confirming the magnetic propagation vector in the low pressure phase.

AB - We have performed neutron diffraction experiments on the manganese superconductor, MnP, under applied pressure. Higher harmonics of the previously reported double helix (2δ and 3δ) at ambient pressure were observed and a new magnetic phases was discovered as hydrostatic pressure was applied to a polycrystalline sample below the pressure required to induce superconductivity. The double helix magnetic structure is suppressed by 0.7 GPa. A new incommensurate magnetic structure with propagation vector ~(0:25; 0:25; 0:125) was found at 1.5 GPa. The application of higher pressures results in the quenching of the incommensurate phase and broad, diffuse magnetic scattering develops before the superconducting phase. Single crystal studies complement the polycrystalline data confirming the magnetic propagation vector in the low pressure phase.

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Suppression of magnetic order before the superconducting dome in MnP

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