Temperature dependent bilayer ferromagnetism in Sr3Ru2O7
arXiv:cond-mat/0601134 · doi:10.1103/PhysRevB.73.174426
Abstract
The Ruthenium based perovskites exhibit a wide variety of interesting collective phenomena related to magnetism originating from the Ru 4d electrons. Much remains unknown concerning the nature of magnetic fluctuations and excitations in these systems. We present results of detailed inelastic neutron scattering measurements of Sr3Ru2O7 as a function of temperature, probing the ferromagnetic fluctuations of the bilayer structure. A magnetic response is clearly visible for a range of temperatures, T = 3.8 K up to T = 100 K, and for energy transfers between 2 and 14 meV. These measurements indicate that the ferromagnetic fluctuations manifest in the bilayer structure factor persist to surprisingly large temperatures. This behavior may be related to the proximity of the system in zero magnetic field to the metamagnetic/ferromagnetic transition.
29 page double space pdf, 12 figures, submitted to Phys. Rev. B
References in corpus (15)
- Transport Properties, Thermodynamic Properties, and Electronic Structure of SrRuO3
- Quantum criticality and universal scaling of a quantum antiferromagnet
- Metamagnetism and critical fluctuations in high quality single crystals of the bilayer ruthenate Sr3Ru2O7
- Evidence for incommensurate spin fluctuations in Sr_2RuO_4
- The ground state of Sr3Ru2O7 revisited; Fermi liquid close to a ferromagnetic instability
- Metamagnetic Quantum Criticality
- Criticality in correlated quantum matter
- Inelastic neutron scattering study of magnetic excitations in SrRuO
- Angular dependence of the magnetic susceptibility in the itinerant metamagnet Sr3Ru2O7
- Competing Ground States in Triple-layered Sr4Ru3O10: Verging on Itinerant Ferromagnetism with Critical Fluctuations
- Systematic approach to the growth of high-quality single-crystals of Sr3Ru2O7
- Uniaxial-Pressure induced Ferromagnetism of Enhanced Paramagnetic Sr3Ru2O7
- Metamagnetic Quantum Criticality Revealed by 17O-NMR in the Itinerant Metamagnet Sr3Ru2O7
- Electrical Transport Properties of Single Crystal Sr3Ru2O7: The Possible Existence of an Antiferromagnetic Instability at Low Temperatures
- Effects of hydrostatic pressure on the magnetic susceptibility of ruthenium oxide Sr3Ru2O7: Evidence for pressure-enhanced antiferromagnetic instability
Cited by in corpus (7)
- Quantum criticality and the formation of a putative electronic liquid crystal in Sr3Ru2O7
- Evolution of Structural and Physical Properties of Sr3(Ru1-xMnx)2O7 with Mn Concentration
- Magnetic excitations in the metallic single-layer Ruthenates Ca(2-x)Sr(x)RuO(4) studied by inelastic neutron scattering
- Surface and Bulk Structural Properties of Single Crystalline Sr3Ru2O7
- Half-metallic ferromagnetism in SrRuO
- Field-induced paramagnons at the metamagnetic transition in Ca1.8Sr0.2RuO4
- Competing magnetic orders in quantum critical SrRuO