Observation of a Central Mode in an Exchange-Coupled Singlet-Ground State System

Jens Aage Als-Nielsen; Jørgen Kjems; W. J. L. Buyers; R. J. Birgenau

doi:10.1088/0022-3719/10/14/019

Observation of a Central Mode in an Exchange-Coupled Singlet-Ground State System

Jens Aage Als-Nielsen
, Jørgen Kjems
, W. J. L. Buyers
, R. J. Birgenau

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

A central mode in the ferromagnetic phase transition of Pr3Tl is observed by inelastic and quasielastic neutron scattering. The integrated intensity has a Lorentzian wavevector dependence with a correlation range that is much larger than in ordinary ferromagnets. The softening of the exciton mode is considerably smaller than predicted by mean field theory.

Original language	English
Journal	Journal of Physics C: Solid State Physics
Volume	10
Issue number	14
Pages (from-to)	2673-2678
ISSN	0022-3719
DOIs	https://doi.org/10.1088/0022-3719/10/14/019
Publication status	Published - 1977

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title = "Observation of a Central Mode in an Exchange-Coupled Singlet-Ground State System",

abstract = "A central mode in the ferromagnetic phase transition of Pr3Tl is observed by inelastic and quasielastic neutron scattering. The integrated intensity has a Lorentzian wavevector dependence with a correlation range that is much larger than in ordinary ferromagnets. The softening of the exciton mode is considerably smaller than predicted by mean field theory.",

author = "Als-Nielsen, \{Jens Aage\} and J{\o}rgen Kjems and Buyers, \{W. J. L.\} and Birgenau, \{R. J.\}",

year = "1977",

doi = "10.1088/0022-3719/10/14/019",

language = "English",

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pages = "2673--2678",

journal = "Journal of Physics C: Solid State Physics",

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T1 - Observation of a Central Mode in an Exchange-Coupled Singlet-Ground State System

AU - Als-Nielsen, Jens Aage

AU - Kjems, Jørgen

AU - Buyers, W. J. L.

AU - Birgenau, R. J.

PY - 1977

Y1 - 1977

N2 - A central mode in the ferromagnetic phase transition of Pr3Tl is observed by inelastic and quasielastic neutron scattering. The integrated intensity has a Lorentzian wavevector dependence with a correlation range that is much larger than in ordinary ferromagnets. The softening of the exciton mode is considerably smaller than predicted by mean field theory.

AB - A central mode in the ferromagnetic phase transition of Pr3Tl is observed by inelastic and quasielastic neutron scattering. The integrated intensity has a Lorentzian wavevector dependence with a correlation range that is much larger than in ordinary ferromagnets. The softening of the exciton mode is considerably smaller than predicted by mean field theory.

U2 - 10.1088/0022-3719/10/14/019

DO - 10.1088/0022-3719/10/14/019

M3 - Journal article

SN - 0022-3719

VL - 10

SP - 2673

EP - 2678

JO - Journal of Physics C: Solid State Physics

JF - Journal of Physics C: Solid State Physics

IS - 14

ER -

Observation of a Central Mode in an Exchange-Coupled Singlet-Ground State System

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