| Issue |
EPL
Volume 84, Number 6, December 2008
|
|
|---|---|---|
| Article Number | 60003 | |
| Number of page(s) | 4 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/84/60003 | |
| Published online | 12 January 2009 | |
Experimental investigation of the entanglement in the magnetization of the layered CaMn2Sb2 compound
1
Magnetic Material Laboratory, RIKEN - 2-1 Hirosawa, Wako-shi, Saitama, Japan
2
Department of Physics, Tuskegee University - Tuskegee, AL, 36088 USA
3
Instituto de Fisica, Universidade Federal do Rio de Janeiro - C.P. 68528, RJ 21941-972, Brazil
Corresponding author: lima.sharma@gmail.com
Received:
17
July
2008
Accepted:
18
November
2008
In this letter, we present an experimental observation of entanglement in a spin chain formed in the layered compound CaMn2Sb2. The presence of entanglement was investigated through a measurable quantity, the magnetic susceptibility. The entanglement witness obtained from the measurement is presented as a function of applied field for fixed temperatures. The presence of entanglement is observed even for reasonably high temperatures and applied fields. Since entanglement seems to occur naturally in this material, we suggest it to be used as an entanglement reservoir.
PACS: 03.67.Mn – Entanglement measures, witnesses, and other characterizations / 75.30.Gw – Magnetic anisotropy / 75.50.Ee – Antiferromagnetic
© EPLA, 2008
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