Critical Magnetic Scattering of Neutrons in Iron

L. Passell; K. Blinowski; T. Brun; P. Nielsen

doi:10.1063/1.1713544

Critical Magnetic Scattering of Neutrons in Iron

L. Passell, K. Blinowski, T. Brun, P. Nielsen

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Abstract

The intense small‐angle scattering of low‐energy neutrons by magnetic materials near the Curie temperature has been shown by Van Hove to be directly related to the appearance of large scale fluctuations in the spin density. We have measured the angular and energy distributions of 4.27‐Å neutrons scattered at small angles in iron and determined the spin correlation range 1∕κ1 and a parameter Λ associated with the lifetime of the fluctuations. Our results confirm the recent observation of Jacrot, Konstantinovic, Parette, and Cribier that the scattering is not elastic even at the Curie temperature. We have found that κ12 varies as (T−Tcmath for 0°

Original language	English
Journal	Journal of Applied Physics
Volume	35
Issue number	3P2
Pages (from-to)	933-934
ISSN	0021-8979
DOIs	https://doi.org/10.1063/1.1713544
Publication status	Published - 1964

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title = "Critical Magnetic Scattering of Neutrons in Iron",

abstract = "The intense small‐angle scattering of low‐energy neutrons by magnetic materials near the Curie temperature has been shown by Van Hove to be directly related to the appearance of large scale fluctuations in the spin density. We have measured the angular and energy distributions of 4.27‐{\AA} neutrons scattered at small angles in iron and determined the spin correlation range 1∕κ1 and a parameter Λ associated with the lifetime of the fluctuations. Our results confirm the recent observation of Jacrot, Konstantinovic, Parette, and Cribier that the scattering is not elastic even at the Curie temperature. We have found that κ12 varies as (T−Tcmath for 0°",

author = "L. Passell and K. Blinowski and T. Brun and P. Nielsen",

year = "1964",

doi = "10.1063/1.1713544",

language = "English",

volume = "35",

pages = "933--934",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "3P2",

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T1 - Critical Magnetic Scattering of Neutrons in Iron

AU - Passell, L.

AU - Blinowski, K.

AU - Brun, T.

AU - Nielsen, P.

PY - 1964

Y1 - 1964

N2 - The intense small‐angle scattering of low‐energy neutrons by magnetic materials near the Curie temperature has been shown by Van Hove to be directly related to the appearance of large scale fluctuations in the spin density. We have measured the angular and energy distributions of 4.27‐Å neutrons scattered at small angles in iron and determined the spin correlation range 1∕κ1 and a parameter Λ associated with the lifetime of the fluctuations. Our results confirm the recent observation of Jacrot, Konstantinovic, Parette, and Cribier that the scattering is not elastic even at the Curie temperature. We have found that κ12 varies as (T−Tcmath for 0°

AB - The intense small‐angle scattering of low‐energy neutrons by magnetic materials near the Curie temperature has been shown by Van Hove to be directly related to the appearance of large scale fluctuations in the spin density. We have measured the angular and energy distributions of 4.27‐Å neutrons scattered at small angles in iron and determined the spin correlation range 1∕κ1 and a parameter Λ associated with the lifetime of the fluctuations. Our results confirm the recent observation of Jacrot, Konstantinovic, Parette, and Cribier that the scattering is not elastic even at the Curie temperature. We have found that κ12 varies as (T−Tcmath for 0°

U2 - 10.1063/1.1713544

DO - 10.1063/1.1713544

M3 - Conference abstract in journal

VL - 35

SP - 933

EP - 934

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 3P2

ER -

Critical Magnetic Scattering of Neutrons in Iron

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