We report a detailed muon-spin rotation study of the pressure evolution of the magnetic order in the manganese-based pnictide MnP, which has been recently found to undergo a superconducting transition under pressure once the magnetic ground state is suppressed. Using the muon as a volume sensitive local magnetic probe, we identify a ferromagnetic state as well as two incommensurate helical states (with propagation vectors Q aligned along the crystallographic c and b directions, respectively) which transform into each other through first-order phase transitions as a function of pressure and temperature. Our data suggest that the magnetic state from which superconductivity develops at higher pressures is an incommensurate helical phase.

High-pressure magnetic state of MnP probed by means of muon-spin rotation / Khasanov, R.; Amato, A.; Bonfa', Pietro; Guguchia, Z.; Luetkens, H.; Morenzoni, E.; De Renzi, Roberto; Zhigadlo, N. D.. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 93:18(2016), pp. 180509-1-180509-5. [10.1103/PhysRevB.93.180509]

High-pressure magnetic state of MnP probed by means of muon-spin rotation

BONFA', Pietro;DE RENZI, Roberto;
2016

Abstract

We report a detailed muon-spin rotation study of the pressure evolution of the magnetic order in the manganese-based pnictide MnP, which has been recently found to undergo a superconducting transition under pressure once the magnetic ground state is suppressed. Using the muon as a volume sensitive local magnetic probe, we identify a ferromagnetic state as well as two incommensurate helical states (with propagation vectors Q aligned along the crystallographic c and b directions, respectively) which transform into each other through first-order phase transitions as a function of pressure and temperature. Our data suggest that the magnetic state from which superconductivity develops at higher pressures is an incommensurate helical phase.
High-pressure magnetic state of MnP probed by means of muon-spin rotation / Khasanov, R.; Amato, A.; Bonfa', Pietro; Guguchia, Z.; Luetkens, H.; Morenzoni, E.; De Renzi, Roberto; Zhigadlo, N. D.. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 93:18(2016), pp. 180509-1-180509-5. [10.1103/PhysRevB.93.180509]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2822105
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