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Incommensurate magnetic ground state revealed by resonant x-ray scattering in the frustrated spin system Ca3Co2O6
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Agrestini, S., Mazzoli, C., Bombardi, A. and Lees, Martin R. (2008) Incommensurate magnetic ground state revealed by resonant x-ray scattering in the frustrated spin system Ca3Co2O6. Physical Review B (Condensed Matter and Materials Physics), Vol.77 (No.14). Article no. 140403. doi:10.1103/PhysRevB.77.140403 ISSN 1098-0121.
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Official URL: http://dx.doi.org/10.1103/PhysRevB.77.140403
Abstract
We have performed a resonant x-ray scattering study at the Co pre-K edge on a single crystal of Ca3Co2O6. The measurements reveal an abrupt transition to a magnetically ordered state immediately below T-N=25 K, with a magnetic correlation length in excess of 5500 A along the c axis chains. There is no evidence for modifications to the Co3+ spin state. A temperature dependent modulation in the magnetic order along the c axis and an unusual decrease in the magnetic correlation lengths on cooling are observed. The results are compatible with the onset of a partially disordered antiferromagnetic structure in Ca3Co2O6.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Cobalt compounds, X-rays -- Scattering, Magnetism, Nuclear spin | ||||
| Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 1098-0121 | ||||
| Official Date: | April 2008 | ||||
| Dates: |
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| Volume: | Vol.77 | ||||
| Number: | No.14 | ||||
| Number of Pages: | 4 | ||||
| Page Range: | Article no. 140403 | ||||
| DOI: | 10.1103/PhysRevB.77.140403 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||
| Grant number: | EP/C000757/1 (EPSRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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