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

S. Ramos; E. M. Forgan; C. Bowell; S. M. Hayden; A. J. Schofield; A. Wildes; E. A. Yelland; S. P. Brown; M. Laver; R. S. Perry; Y. Maeno

doi:10.1016/j.physb.2007.10.123

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

S. Ramos, E. M. Forgan, C. Bowell, S. M. Hayden, A. J. Schofield, A. Wildes, E. A. Yelland, S. P. Brown, M. Laver, R. S. Perry, Y. Maeno

Research output: Contribution to journal › Article › peer-review

13 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 : Condensed Matter
Volume	403
Issue number	5-9
DOIs	https://doi.org/10.1016/j.physb.2007.10.123
Publication status	Published - 1 Apr 2008

Keywords

metamagnetism
ruthenate
quantum criticality
inelastic neutron scattering
QUANTUM CRITICALITY
RUTHENATE SR3RU2O7

Access to Document

10.1016/j.physb.2007.10.123

Cite this

@article{ce84c3ae7be84871baa62fbcd2ea3a01,

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 = "metamagnetism, ruthenate, quantum criticality, inelastic neutron scattering, QUANTUM CRITICALITY, RUTHENATE SR3RU2O7",

author = "S. Ramos and Forgan, {E. M.} and C. Bowell and Hayden, {S. M.} and Schofield, {A. J.} and A. Wildes and Yelland, {E. A.} and Brown, {S. P.} and M. Laver and Perry, {R. S.} and Y. Maeno",

year = "2008",

month = apr,

day = "1",

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

language = "English",

volume = "403",

pages = "1270--1272",

journal = "Physica B : Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "5-9",

}

TY - JOUR

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

AU - Ramos, S.

AU - Forgan, E. M.

AU - Bowell, C.

AU - Hayden, S. M.

AU - Schofield, A. J.

AU - Wildes, A.

AU - Yelland, E. A.

AU - Brown, S. P.

AU - Laver, M.

AU - Perry, R. S.

AU - Maeno, Y.

PY - 2008/4/1

Y1 - 2008/4/1

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 - metamagnetism

KW - ruthenate

KW - quantum criticality

KW - inelastic neutron scattering

KW - QUANTUM CRITICALITY

KW - RUTHENATE SR3RU2O7

UR - http://www.scopus.com/inward/record.url?scp=39749122661&partnerID=8YFLogxK

U2 - 10.1016/j.physb.2007.10.123

DO - 10.1016/j.physb.2007.10.123

M3 - Article

SN - 0921-4526

VL - 403

SP - 1270

EP - 1272

JO - Physica B : Condensed Matter

JF - Physica B : Condensed Matter

IS - 5-9

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this