TY - JOUR
T1 - Field- and pressure-induced phases in Sr4Ru3O10
T2 - A spectroscopic investigation
AU - Gupta, Rajeev
AU - Kim, M.
AU - Barath, H.
AU - Cooper, S. L.
AU - Cao, G.
PY - 2006
Y1 - 2006
N2 - We have investigated the magnetic-field- and pressure-induced structural and magnetic phases of the triple-layer ruthenate Sr4Ru3O10. Magnetic-field-induced changes in the phonon spectra reveal dramatic spin-reorientation transitions and strong magnetoelastic coupling in this material. Further, we are able to deduce key magnetoelastic coupling parameters, and evidence that the magnetic moments are localized on the Ru sites. Additionally, pressure-dependent Raman measurements at different temperatures reveal an anomalous negative Gruneisen parameter associated with the B1g mode (∼380cm-1) at low temperatures (T<75K), which can be explained consistently with the field-dependent Raman data.
AB - We have investigated the magnetic-field- and pressure-induced structural and magnetic phases of the triple-layer ruthenate Sr4Ru3O10. Magnetic-field-induced changes in the phonon spectra reveal dramatic spin-reorientation transitions and strong magnetoelastic coupling in this material. Further, we are able to deduce key magnetoelastic coupling parameters, and evidence that the magnetic moments are localized on the Ru sites. Additionally, pressure-dependent Raman measurements at different temperatures reveal an anomalous negative Gruneisen parameter associated with the B1g mode (∼380cm-1) at low temperatures (T<75K), which can be explained consistently with the field-dependent Raman data.
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U2 - 10.1103/PhysRevLett.96.067004
DO - 10.1103/PhysRevLett.96.067004
M3 - Article
AN - SCOPUS:33144489607
SN - 0031-9007
VL - 96
JO - Physical review letters
JF - Physical review letters
IS - 6
M1 - 067004
ER -