Static magnetic properties of metallic systems explored by μSR-Spectroscopy

Schenck, A.

doi:10.1201/9780203746196-3

Cited by 2 publications

(3 citation statements)

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“…In the paramagnetic phase, a shift of the muon frequency is usually observed, because the local magnetic field is different from the applied one. This is defined as the experimental Knight shift K exp , expressed as [38]…”

Section: B Transverse Field Measurements Above T Nmentioning

confidence: 99%

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Understanding the magnetic dynamics and magnetostructural coupling in the paramagnetic phase ofTbMnO3by muon-spin spectroscopy

Vilarinho,

Vilão,

Alberto

et al. 2023

Phys. Rev. B

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In this work we present a comprehensive study of the spin dynamics and fluctuations in the ordered magnetic phases of the prototype multiferroic material TbMnO 3 . From the temperature dependence of the dynamical and static components of the time-dependent asymmetry, we demonstrate the existence of strong local magnetic-field disorder arising from the modulated Mn 3+ spin arrangement and the effect of the Tb 3+ ordering at low temperatures. We provide evidence for an unusual magnetostructural coupling in the paramagnetic phase of TbMnO 3 by means of muon spin spectroscopy. No short-range magnetic ordering definitively occurs in the paramagnetic phase and the unusual properties found in the temperature dependence of the magnetic susceptibility are due to a magnetostructural coupling, likely involving oxygen displacements.

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Section: B Transverse Field Measurements Above T Nmentioning

confidence: 99%

“…In the paramagnetic phase of an insulating oxide, the muon Knight shift should scale with the magnetic susceptibility, as follows [38]:…”

Section: B Transverse Field Measurements Above T Nmentioning

confidence: 99%

Understanding the magnetic dynamics and magnetostructural coupling in the paramagnetic phase ofTbMnO3by muon-spin spectroscopy

Vilarinho,

Vilão,

Alberto

et al. 2023

Phys. Rev. B

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“…In copper, the muon stopping site was experimentally determined to be at the center of a copper octahedron in the copper fcc crystalline lattice. Level-crossing measurements were performed at the TRIUMF muon source (Canada) for samples at temperatures of 40 K and 156 K and longitudinal magnetic fields ranging from 0 T to 0.012 T. 20,21 The UEP method predicted two stopping sites in fcc copper: one in a tetrahedral site and the other in an octahedral site (Fig. 1).…”

Section: Example Systemsmentioning

confidence: 99%