Spin wave collapse and incommensurate fluctuations in URu2Si2

W.J.L. Buyers; Z. Tun; T. Petersen; T.E. Mason; J.G. Lussier; B.D. Gaulin; A.A. Menovsky

doi:10.1016/0921-4526(94)91746-9

Spin wave collapse and incommensurate fluctuations in URu₂Si₂

W.J.L. Buyers, Z. Tun, T. Petersen, T.E. Mason, J.G. Lussier, B.D. Gaulin, A.A. Menovsky

Research output: Contribution to journal › Journal article › Research

Abstract

To test if the T(N) = 17.7 K transition in URu2Si2 is driven by a divergence of a magnetic order parameter we performed high-resolution neutron scattering. At the ordering wave vector the spin-wave energy collapsed. and the susceptibility diverged as T(N) was approached. This confirms that the order parameter is the magnetic dipole, as shown by recent symmetry arguments and polarized neutron experiments [1]. We also observe incommensurate fluctuations, suggesting that competing temperature-dependent interactions may influence this weak-moment transition.

Original language	English
Journal	Physica B: Condensed Matter
Volume	199/200
Pages (from-to)	95-97
ISSN	0921-4526
DOIs	https://doi.org/10.1016/0921-4526(94)91746-9
Publication status	Published - 1994

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title = "Spin wave collapse and incommensurate fluctuations in URu2Si2",

abstract = "To test if the T(N) = 17.7 K transition in URu2Si2 is driven by a divergence of a magnetic order parameter we performed high-resolution neutron scattering. At the ordering wave vector the spin-wave energy collapsed. and the susceptibility diverged as T(N) was approached. This confirms that the order parameter is the magnetic dipole, as shown by recent symmetry arguments and polarized neutron experiments [1]. We also observe incommensurate fluctuations, suggesting that competing temperature-dependent interactions may influence this weak-moment transition. ",

keywords = "Materialer med s{\ae}rlige fysiske og kemiske egenskaber",

author = "W.J.L. Buyers and Z. Tun and T. Petersen and T.E. Mason and J.G. Lussier and B.D. Gaulin and A.A. Menovsky",

year = "1994",

doi = "10.1016/0921-4526(94)91746-9",

language = "English",

volume = "199/200",

pages = "95--97",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

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TY - JOUR

T1 - Spin wave collapse and incommensurate fluctuations in URu2Si2

AU - Buyers, W.J.L.

AU - Tun, Z.

AU - Petersen, T.

AU - Mason, T.E.

AU - Lussier, J.G.

AU - Gaulin, B.D.

AU - Menovsky, A.A.

PY - 1994

Y1 - 1994

N2 - To test if the T(N) = 17.7 K transition in URu2Si2 is driven by a divergence of a magnetic order parameter we performed high-resolution neutron scattering. At the ordering wave vector the spin-wave energy collapsed. and the susceptibility diverged as T(N) was approached. This confirms that the order parameter is the magnetic dipole, as shown by recent symmetry arguments and polarized neutron experiments [1]. We also observe incommensurate fluctuations, suggesting that competing temperature-dependent interactions may influence this weak-moment transition.

AB - To test if the T(N) = 17.7 K transition in URu2Si2 is driven by a divergence of a magnetic order parameter we performed high-resolution neutron scattering. At the ordering wave vector the spin-wave energy collapsed. and the susceptibility diverged as T(N) was approached. This confirms that the order parameter is the magnetic dipole, as shown by recent symmetry arguments and polarized neutron experiments [1]. We also observe incommensurate fluctuations, suggesting that competing temperature-dependent interactions may influence this weak-moment transition.

KW - Materialer med særlige fysiske og kemiske egenskaber

U2 - 10.1016/0921-4526(94)91746-9

DO - 10.1016/0921-4526(94)91746-9

M3 - Journal article

SN - 0921-4526

VL - 199/200

SP - 95

EP - 97

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -