Nair, Sunil ; Nigam, A. K. ; Narlikar, A. V. ; Prabhakaran, D. ; Boothroyd, A. (2006) Phase separation, memory effects, and magnetization steps in single crystalline La1.1Sr1.9Mn2O7 Physical Review B: Condensed Matter and Materials Physics, 74 (13). p. 4. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v74/i13/e132407
Related URL: http://dx.doi.org/10.1103/PhysRevB.74.132407
Abstract
The magnetic ground state of a single crystalline bilayered manganite La1.1Sr1.9Mn2O7 is investigated using bulk magnetic measurements. Besides large relaxation times, memory effects reminiscent of that seen in spin glasses are also observed both in the field cooled and zero field cooled measurement protocols. These indicate that this system is not a canted antiferromagnet as was reported earlier, but on the contrary has an inhomogenous magnetic ground state arising as a consequence of phase separation. We also report the observation of sharp metamagnetic steps in this bilayered manganite, similar to that seen in phase separated three-dimensional perovskites.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 32615 |
| Deposited On: | 19 Mar 2011 06:44 |
| Last Modified: | 09 Jun 2011 11:17 |
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