Abstract
The magnetic ground state in the hole-doped two-leg ladder system Sr2.5Ca11.5Cu24O41 both at ambient pressure and under high pressure up to 3 GPa was investigated by a neutron scattering experiment. The spin gap value for this system at ambient pressure is found to be 32.1 ± 0.3 meV, being almost the same as that of the parent material Sr14Cu24O41. With increasing pressure, the spin gap energy is almost unchanged, however, the inelastic neutron scattering intensity at the zone center of the ladder is decreased progressively. We also observed antiferromagnetic long range ordering below TN(approx. 2.1 K), which was increased with increasing pressure. A possible magnetic structure of this system is also discussed. These results show the coexistence of the spin liquid state and antiferromagnetic ordering in the hole-doped two-leg ladder system.
| Original language | English |
|---|---|
| Pages (from-to) | 1039-1043 |
| Number of pages | 5 |
| Journal | Journal of Physics and Chemistry of Solids |
| Volume | 60 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Sep 1999 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Coexistence of the spin liquid state and the magnetic ordering in the spin ladder compound; Sr14-xCaxCu24O41 . / Nagata, T.; Fujino, H.; Ohishi, K.; Akimitsu, Jun; Katano, S.; Nishi, M.; Kakurai, K.
In: Journal of Physics and Chemistry of Solids, Vol. 60, No. 8, 09.1999, p. 1039-1043.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Coexistence of the spin liquid state and the magnetic ordering in the spin ladder compound; Sr14-xCaxCu24O41
AU - Nagata, T.
AU - Fujino, H.
AU - Ohishi, K.
AU - Akimitsu, Jun
AU - Katano, S.
AU - Nishi, M.
AU - Kakurai, K.
PY - 1999/9
Y1 - 1999/9
N2 - The magnetic ground state in the hole-doped two-leg ladder system Sr2.5Ca11.5Cu24O41 both at ambient pressure and under high pressure up to 3 GPa was investigated by a neutron scattering experiment. The spin gap value for this system at ambient pressure is found to be 32.1 ± 0.3 meV, being almost the same as that of the parent material Sr14Cu24O41. With increasing pressure, the spin gap energy is almost unchanged, however, the inelastic neutron scattering intensity at the zone center of the ladder is decreased progressively. We also observed antiferromagnetic long range ordering below TN(approx. 2.1 K), which was increased with increasing pressure. A possible magnetic structure of this system is also discussed. These results show the coexistence of the spin liquid state and antiferromagnetic ordering in the hole-doped two-leg ladder system.
AB - The magnetic ground state in the hole-doped two-leg ladder system Sr2.5Ca11.5Cu24O41 both at ambient pressure and under high pressure up to 3 GPa was investigated by a neutron scattering experiment. The spin gap value for this system at ambient pressure is found to be 32.1 ± 0.3 meV, being almost the same as that of the parent material Sr14Cu24O41. With increasing pressure, the spin gap energy is almost unchanged, however, the inelastic neutron scattering intensity at the zone center of the ladder is decreased progressively. We also observed antiferromagnetic long range ordering below TN(approx. 2.1 K), which was increased with increasing pressure. A possible magnetic structure of this system is also discussed. These results show the coexistence of the spin liquid state and antiferromagnetic ordering in the hole-doped two-leg ladder system.
UR - http://www.scopus.com/inward/record.url?scp=0032590626&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032590626&partnerID=8YFLogxK
U2 - 10.1016/S0022-3697(99)00044-X
DO - 10.1016/S0022-3697(99)00044-X
M3 - Article
VL - 60
SP - 1039
EP - 1043
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
SN - 0022-3697
IS - 8
ER -