Spin dynamics in Sr3Ru2O7 near the metamagnetic transition by inelastic neutron scattering

Silvia Ramos; Edward Forgan; C Bowell; SM Hayden; Andrew Schofield; A Wildes; EA Yelland; SP Brown; M Laver; RS Perry; Y Maeno

doi:10.1016/j.physb.2007.10.123

Spin dynamics in Sr3Ru2O7 near the metamagnetic transition by inelastic neutron scattering

Silvia Ramos, Edward Forgan, C Bowell, SM Hayden, Andrew Schofield, A Wildes, EA Yelland, SP Brown, M Laver, RS Perry, Y Maeno

Physics and Astronomy

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11 Citations (Scopus)

Abstract

The bilayered ruthenate Sr3Ru2O7 has a metamagnetic quantum critical point. This is the first example of a material with a quantum-critical end-point. This work addresses the problem of the metamagnetic criticality in this system through the measurement of spin fluctuations by inelastic neutron scattering. Our results show that incommensurate antiferromagnetic fluctuations are present in a wide range of applied fields. We have also observed how ferromagnetic fluctuations develop at the metamagnetic field. Finally, the intensity of the two types of fluctuations is followed as a function of the energy transfer between the neutron and the spins. (C) 2007 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	1270-1272
Number of pages	3
Journal	Physica B - Physics of Condensed Matter
Volume	403
Issue number	5-9
DOIs	https://doi.org/10.1016/j.physb.2007.10.123
Publication status	Published - 1 Jan 2008

Keywords

inelastic neutron scattering
quantum criticality
metamagnetism
ruthenate

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10.1016/j.physb.2007.10.123

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title = "Spin dynamics in Sr3Ru2O7 near the metamagnetic transition by inelastic neutron scattering",

abstract = "The bilayered ruthenate Sr3Ru2O7 has a metamagnetic quantum critical point. This is the first example of a material with a quantum-critical end-point. This work addresses the problem of the metamagnetic criticality in this system through the measurement of spin fluctuations by inelastic neutron scattering. Our results show that incommensurate antiferromagnetic fluctuations are present in a wide range of applied fields. We have also observed how ferromagnetic fluctuations develop at the metamagnetic field. Finally, the intensity of the two types of fluctuations is followed as a function of the energy transfer between the neutron and the spins. (C) 2007 Elsevier B.V. All rights reserved.",

keywords = "inelastic neutron scattering, quantum criticality, metamagnetism, ruthenate",

author = "Silvia Ramos and Edward Forgan and C Bowell and SM Hayden and Andrew Schofield and A Wildes and EA Yelland and SP Brown and M Laver and RS Perry and Y Maeno",

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doi = "10.1016/j.physb.2007.10.123",

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TY - JOUR

T1 - Spin dynamics in Sr3Ru2O7 near the metamagnetic transition by inelastic neutron scattering

AU - Ramos, Silvia

AU - Forgan, Edward

AU - Bowell, C

AU - Hayden, SM

AU - Schofield, Andrew

AU - Wildes, A

AU - Yelland, EA

AU - Brown, SP

AU - Laver, M

AU - Perry, RS

AU - Maeno, Y

PY - 2008/1/1

Y1 - 2008/1/1

N2 - The bilayered ruthenate Sr3Ru2O7 has a metamagnetic quantum critical point. This is the first example of a material with a quantum-critical end-point. This work addresses the problem of the metamagnetic criticality in this system through the measurement of spin fluctuations by inelastic neutron scattering. Our results show that incommensurate antiferromagnetic fluctuations are present in a wide range of applied fields. We have also observed how ferromagnetic fluctuations develop at the metamagnetic field. Finally, the intensity of the two types of fluctuations is followed as a function of the energy transfer between the neutron and the spins. (C) 2007 Elsevier B.V. All rights reserved.

AB - The bilayered ruthenate Sr3Ru2O7 has a metamagnetic quantum critical point. This is the first example of a material with a quantum-critical end-point. This work addresses the problem of the metamagnetic criticality in this system through the measurement of spin fluctuations by inelastic neutron scattering. Our results show that incommensurate antiferromagnetic fluctuations are present in a wide range of applied fields. We have also observed how ferromagnetic fluctuations develop at the metamagnetic field. Finally, the intensity of the two types of fluctuations is followed as a function of the energy transfer between the neutron and the spins. (C) 2007 Elsevier B.V. All rights reserved.

KW - inelastic neutron scattering

KW - quantum criticality

KW - metamagnetism

KW - ruthenate

U2 - 10.1016/j.physb.2007.10.123

DO - 10.1016/j.physb.2007.10.123

M3 - Article

VL - 403

SP - 1270

EP - 1272

JO - Physica B - Physics of Condensed Matter

JF - Physica B - Physics of Condensed Matter

IS - 5-9

ER -

Spin dynamics in Sr3Ru2O7 near the metamagnetic transition by inelastic neutron scattering

Abstract

Keywords

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