DISPERSION OF THE MAGNETIC EXCITATIONS OF THE PR IONS IN PR2CUO4

被引:12
|
作者
SUMARLIN, IW
LYNN, JW
CHATTOPADHYAY, T
BARILO, SN
ZHIGUNOV, DI
机构
[1] NATL INST STAND & TECHNOL, DIV REACTOR RADIAT, GAITHERSBURG, MD 20899 USA
[2] BELARUS ACAD SCI, INST PHYS SOLIDS & SEMICOND, MINSK 220726, BELARUS
[3] INST MAX VON LAUE PAUL LANGEVIN, F-38042 GRENOBLE, FRANCE
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D O I
10.1016/0921-4534(94)90034-5
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have used inelastic neutron scattering techniques to measure the dispersion of the singlet-doublet magnetic excitons of the Pr3+ ions in the singlet ground state system Pr2CuO4. The excitons exhibit significant dispersion both within the basal plane as well as along the c-axis direction, directly demonstrating the Pr-Pr exchange interactions. These exchange interactions must be mediated through the CuO2 layers involved in the formation of the superconducting state.
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页码:195 / 199
页数:5
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