TY - JOUR
T1 - Neutron spin echo studies of the glass-like pyrochlore y2Mo 2O7
AU - Gardner, J. S.
AU - Ehlers, G.
AU - Heffner, R. H.
AU - Mezei, F.
PY - 2001
Y1 - 2001
N2 - We performed neutron spin echo measurements, on the geometrically frustrated antiferromagnet Y2Mo2O7 to reveal the magnetic nature of this glass-like system close to the freezing temperature, Tf. Diffuse magnetic scattering S(Q), indicative of spatial correlations, were observed to peak at a wave vector, Q = 0.45 Å-1 below 25 K. The normalized intermediate scattering function, S(Q, t)/S(Q, O), was measured as a function of temperature and Q. This provides evidence of the dynamics within the system and reveals at least two relaxation processes above and below Tf ≈ 22.5 K. Crown
AB - We performed neutron spin echo measurements, on the geometrically frustrated antiferromagnet Y2Mo2O7 to reveal the magnetic nature of this glass-like system close to the freezing temperature, Tf. Diffuse magnetic scattering S(Q), indicative of spatial correlations, were observed to peak at a wave vector, Q = 0.45 Å-1 below 25 K. The normalized intermediate scattering function, S(Q, t)/S(Q, O), was measured as a function of temperature and Q. This provides evidence of the dynamics within the system and reveals at least two relaxation processes above and below Tf ≈ 22.5 K. Crown
KW - Magnetic frustration
KW - Neutron scattering
KW - Pyrochlore
UR - http://www.scopus.com/inward/record.url?scp=33748684376&partnerID=8YFLogxK
U2 - 10.1016/S0304-8853(00)00770-8
DO - 10.1016/S0304-8853(00)00770-8
M3 - Article
AN - SCOPUS:33748684376
SN - 0304-8853
VL - 226-230
SP - 460
EP - 462
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - PART I
ER -