Polarised neutron scattering from the surface and bulk of magnetic fluid

V. T. Lebedev, G. P. Gordeev, L. A. Axelrod, I. M. Lazebnik, G. Török, L. Cser, L. Rosta

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We have studied the local magnetic properties of a ferrofluid near the surface layer and in the bulk volume, using narrow (∼1.5 mm) polarised neutron beam. The polarisation of the transmitted beam showed some peculiarities (found by three-dimensional analysis) near the surface comparing to the bulk region. These peculiarities are better manifested when a magnetic field is applied and an increased spin rotation was observed near the surface. The small angle scattering intensity near the surface region was higher than in the bulk volume. The q dependence of surface section reveals clusters with a spread of size ≈102-103 Å, which can be connected with a low fractal dimensionality Df ≅ 1. In bulk material the nuclear-magnetic interference cross-section measured corresponds to the theoretical prediction.

Original languageEnglish
Pages (from-to)525-527
Number of pages3
JournalPhysica B: Condensed Matter
Volume234-236
Publication statusPublished - Jun 2 1997

Fingerprint

Magnetic fluids
Neutron scattering
neutron scattering
fluids
ferrofluids
dimensional analysis
neutron beams
Neutron beams
fractals
surface layers
Fractals
magnetic properties
Magnetic properties
interference
Scattering
Polarization
cross sections
Magnetic fields
polarization
predictions

Keywords

  • Ferrofluid
  • Neutron scattering
  • Relaxation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Lebedev, V. T., Gordeev, G. P., Axelrod, L. A., Lazebnik, I. M., Török, G., Cser, L., & Rosta, L. (1997). Polarised neutron scattering from the surface and bulk of magnetic fluid. Physica B: Condensed Matter, 234-236, 525-527.

Polarised neutron scattering from the surface and bulk of magnetic fluid. / Lebedev, V. T.; Gordeev, G. P.; Axelrod, L. A.; Lazebnik, I. M.; Török, G.; Cser, L.; Rosta, L.

In: Physica B: Condensed Matter, Vol. 234-236, 02.06.1997, p. 525-527.

Research output: Contribution to journalArticle

Lebedev, VT, Gordeev, GP, Axelrod, LA, Lazebnik, IM, Török, G, Cser, L & Rosta, L 1997, 'Polarised neutron scattering from the surface and bulk of magnetic fluid', Physica B: Condensed Matter, vol. 234-236, pp. 525-527.
Lebedev VT, Gordeev GP, Axelrod LA, Lazebnik IM, Török G, Cser L et al. Polarised neutron scattering from the surface and bulk of magnetic fluid. Physica B: Condensed Matter. 1997 Jun 2;234-236:525-527.
Lebedev, V. T. ; Gordeev, G. P. ; Axelrod, L. A. ; Lazebnik, I. M. ; Török, G. ; Cser, L. ; Rosta, L. / Polarised neutron scattering from the surface and bulk of magnetic fluid. In: Physica B: Condensed Matter. 1997 ; Vol. 234-236. pp. 525-527.
@article{7e90ad8f2ad943de85208789af0497e1,
title = "Polarised neutron scattering from the surface and bulk of magnetic fluid",
abstract = "We have studied the local magnetic properties of a ferrofluid near the surface layer and in the bulk volume, using narrow (∼1.5 mm) polarised neutron beam. The polarisation of the transmitted beam showed some peculiarities (found by three-dimensional analysis) near the surface comparing to the bulk region. These peculiarities are better manifested when a magnetic field is applied and an increased spin rotation was observed near the surface. The small angle scattering intensity near the surface region was higher than in the bulk volume. The q dependence of surface section reveals clusters with a spread of size ≈102-103 {\AA}, which can be connected with a low fractal dimensionality Df ≅ 1. In bulk material the nuclear-magnetic interference cross-section measured corresponds to the theoretical prediction.",
keywords = "Ferrofluid, Neutron scattering, Relaxation",
author = "Lebedev, {V. T.} and Gordeev, {G. P.} and Axelrod, {L. A.} and Lazebnik, {I. M.} and G. T{\"o}r{\"o}k and L. Cser and L. Rosta",
year = "1997",
month = "6",
day = "2",
language = "English",
volume = "234-236",
pages = "525--527",
journal = "Physica B: Condensed Matter",
issn = "0921-4526",
publisher = "Elsevier",

}

TY - JOUR

T1 - Polarised neutron scattering from the surface and bulk of magnetic fluid

AU - Lebedev, V. T.

AU - Gordeev, G. P.

AU - Axelrod, L. A.

AU - Lazebnik, I. M.

AU - Török, G.

AU - Cser, L.

AU - Rosta, L.

PY - 1997/6/2

Y1 - 1997/6/2

N2 - We have studied the local magnetic properties of a ferrofluid near the surface layer and in the bulk volume, using narrow (∼1.5 mm) polarised neutron beam. The polarisation of the transmitted beam showed some peculiarities (found by three-dimensional analysis) near the surface comparing to the bulk region. These peculiarities are better manifested when a magnetic field is applied and an increased spin rotation was observed near the surface. The small angle scattering intensity near the surface region was higher than in the bulk volume. The q dependence of surface section reveals clusters with a spread of size ≈102-103 Å, which can be connected with a low fractal dimensionality Df ≅ 1. In bulk material the nuclear-magnetic interference cross-section measured corresponds to the theoretical prediction.

AB - We have studied the local magnetic properties of a ferrofluid near the surface layer and in the bulk volume, using narrow (∼1.5 mm) polarised neutron beam. The polarisation of the transmitted beam showed some peculiarities (found by three-dimensional analysis) near the surface comparing to the bulk region. These peculiarities are better manifested when a magnetic field is applied and an increased spin rotation was observed near the surface. The small angle scattering intensity near the surface region was higher than in the bulk volume. The q dependence of surface section reveals clusters with a spread of size ≈102-103 Å, which can be connected with a low fractal dimensionality Df ≅ 1. In bulk material the nuclear-magnetic interference cross-section measured corresponds to the theoretical prediction.

KW - Ferrofluid

KW - Neutron scattering

KW - Relaxation

UR - http://www.scopus.com/inward/record.url?scp=0031548225&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031548225&partnerID=8YFLogxK

M3 - Article

VL - 234-236

SP - 525

EP - 527

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

ER -