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8 papers · 2 filters
Critical spin dynamics of the 2D quantum Heisenberg antiferromagnets: Sr_2CuO_2Cl_2 and Sr_2Cu_3O_4Cl_2
Y. J. Kim, R. J. Birgeneau, F. C. Chou +2
We report a neutron scattering study of the long-wavelength dynamic spin correlations in the model two-dimensional square lattice Heisenberg antiferromagnets SrCuOC…
Incommensurate magnetic structure of CeRhIn5
Wei Bao, P. G. Pagliuso, J. L. Sarrao +4
The magnetic structure of the heavy fermion antiferromagnet CeRhIn5 is determined using neutron diffraction. We find a magnetic wave vector q_M=(1/2,1/2,0.297), which is temperatur…
Neutron Scattering study of Sr_2Cu_3O_4Cl_2
Y. J. Kim, R. J. Birgeneau, F. C. Chou +10
We report a neutron scattering study on the tetragonal compound Sr_2Cu_3O_4Cl_2, which has two-dimensional (2D) interpenetrating Cu_I and Cu_{II} subsystems, each forming a S=1/2 s…
Field-induced 3- and 2-dimensional freezing in a quantum spin liquid
Y. Chen, Z. Honda, A. Zheludev +3
Field-induced commensurate transverse magnetic ordering is observed in the Haldane-gap compound \nd by means of neutron diffraction. Depending on the direction of applied field, th…
Charge Ordering and Polaron Formation in the Magnetoresistive Oxide La0.7Ca0.3MnO3
C. P. Adams, J. W. Lynn, Y. M. Mukovskii +2
Neutron scattering has been used to study the nature of the ferromagnetic transition in a single crystal of the perovskite La0.7Ca0.3MnO3. Diffuse scattering from lattice polarons…
Haldane-gap excitations in the low-H_c 1-dimensional quantum antiferromagnet NDMAP
A. Zheludev, Y. Chen, C. L. Broholm +2
Inelastic neutron scattering on deuterated single-crystal samples is used to study Haldane-gap excitations in the new S=1 one-dimensional quantum antiferromagnet NDMAP, that was re…