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

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Khasanov R., Amato A., Bonfa P., Guguchia Z., Luetkens H., Morenzoni E., De Renzi R., Zhigadlo N. D.,
Project Interplay between the superconductivity and magnetism in cuprate and Fe-based superconductors
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Original article (peer-reviewed)

Journal PHYSICAL REVIEW B
Volume (Issue) 93(18)
Page(s) 18509
Title of proceedings PHYSICAL REVIEW B
DOI 10.1103/physrevb.93.180509

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.
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