Abstract
Extracting dispersive magnetic excitations from inelastic neutron scattering data usually requires large single crystals. We present a simple yet powerful method for extracting such information from polycrystalline or powder data for one-dimensional systems. We demonstrate the effectiveness of this data treatment by extracting dispersion curves from powder inelastic neutron scattering data on the one-dimensional spin-half systems: CuGeO3 and Rb2Cu2Mo3O12. For many such materials, it is not possible to grow sufficiently large crystals and this method offers a quick and efficient way to study their magnetic excitations.
| Original language | English |
|---|---|
| Article number | 092502 |
| Journal | Applied Physics Letters |
| Volume | 94 |
| Issue number | 9 |
| DOIs | |
| State | Published - 2009 |
| Externally published | Yes |
Funding
We thank Professors K. Yamada and K. Ohoyama for fruitful discussion, Dr. C. D. Frost for providing us the single-crystal data, Drs. R. Stevens, A. Llobet, and F. Trouw for preliminary neutron experiments on Pharos at LANSCE, and Mrs. L. Jirik for the supports of neutron experiments at IPNS. This work was supported mainly by Grants in Aid from the Ministry of Education, Culture, Sports, Science and Technology of Japan for Specially Promoted Research (Grant No. 17001001) and partially by those for Young Scientists (A) (Grant No. 17684016) and Scientific Research (B) (Grant No. 19340090), the Japan-UK Collaboration Program on Neutron Scattering, World Premier International (WPI) Research Initiative, and the collaboration on neutron science between High Energy Accelerator Research Organization (KEK) and Argonne National Laboratory (ANL). The experiments at ANL were supported by the Office of Basic Energy Sciences, Division of Materials Sciences, U.S. Department of Energy, under Contract No. DE-AC02-06CH11357, and work at ORNL/SNS was managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725.