Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Paramagnetic Spin Correlations in Colossal Magnetoresistive La0.7Ca0.3MnO3



Joel Helton, Matthew B. Stone, Dmitry A. Shulyatev, Yakov M. Mukovskii, Jeffrey W. Lynn


Neutron spectroscopy measurements reveal dynamic spin correlations throughout the Brillouin zone in the colossal magnetoresistive system La0.7Ca0.3MnO3 at 265 K ({approx}1.03Tc). The long-wavelength behavior is consistent with spin diffusion, yet an additional and unexpected component of the scattering is also observed in low-energy constant-E measurements which takes the form of ridges of strong scattering running along (H 0 0) and equivalent directions. Well defined Q-space correlations are observed in constant-E scans at energies up to at least 28 meV, suggesting robust short-range correlations in the paramagnetic phase.
Physical Review B


colossal magnetoresistance, paramagnetic scattering, isotropic ferromagnets, metallic ferromagnets


, J. , , M. , , D. , , Y. and Lynn, J. (2012), Paramagnetic Spin Correlations in Colossal Magnetoresistive La<sub>0.7</sub>Ca<sub>0.3</sub>MnO<sub>3</sub>, Physical Review B, [online], (Accessed June 25, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created April 2, 2012, Updated February 19, 2017