Magnetic properties of the S=1/2 quasi-one-dimensional antiferromagnet: Sr{sub 14-x}Y{sub x}Cu{sub 24}O{sub 41}
Conference
·
OSTI ID:253273
- Institute of Physical and Chemical Research, Wako, Saitama (Japan)
- Brookhaven National Lab., Upton, NY (United States)
Magnetic susceptibility and inelastic neutron scattering measurements have been performed on the S=1/2 quasi-one-dimensional system Sr{sub 14-x}Y{sub x}Cu{sub 24}O{sub 41}, which has both simple chains and two-leg ladder chains of copper ions. The experimental results show that the simple chain in Sr{sub 14}Cu{sub 24}O{sub 41} has a spin gap in the excitation spectrum, which originates from a dimerized state. We have also studied the effect of Y{sup 3+} substitution for Sr{sup 2+} site on the dimerized state. It was found that the yttrium substitution suppresses the gap energy drastically.
- Research Organization:
- Brookhaven National Lab., Upton, NY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); Ministry of Education, Science and Culture (Japan)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 253273
- Report Number(s):
- BNL--63041; CONF-960849--3; ON: DE96010686
- Country of Publication:
- United States
- Language:
- English
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