Inelastic Neutron Scattering from Mn<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">F</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> in the Critical Region

M. P. Schulhof; P. Heller; R. Nathans; A. Linz

doi:10.1103/PhysRevLett.24.1184

Inelastic Neutron Scattering from Mn $F_{2}$ in the Critical Region

M. P. Schulhof, P. Heller, R. Nathans, and A. Linz

Phys. Rev. Lett. 24, 1184 – Published 25 May 1970

Abstract

Detailed neutron-scattering measurements have yielded the behavior of the scattering function $S (q, ω)$ for both the transverse and longitudinal fluctuations in the critical region of the uniaxial antiferromagnet Mn $F_{2}$ . The static wavelength-dependent susceptibilities are measured both above and below $T_{N}$ . The relaxation rates for the longitudinal fluctuations are found to be correctly described by dynamical scaling both above and below $T_{N}$ . The scaling functions $Ω_{\pm} (\frac{q}{κ})$ applying respectively above and below $T_{N}$ are determined explicitly.

Received 10 April 1970

DOI:https://doi.org/10.1103/PhysRevLett.24.1184

Authors & Affiliations

M. P. Schulhof^*,† and P. Heller^*,†

Brandeis University, Waltham, Massachusetts 02154

R. Nathans^*

State University of New York at Stony Brook, New York 11790, and Brookhaven National Laboratory, Upton, New York 11973

A. Linz

Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

^*Work performed under the auspices of the U. S. Atomic Energy Commission.
^†Work supported by the Air Force Office of Scientific Research, Grant No. AF68-1480.