Abstract
Pressure effects on the stability of magnetic phases in La1.4Sr1.6Mn2O7 have been studied using magnetization measurements and neutron diffraction. At ambient conditions this material is a quasi-two-dimensional ferromagnet. On cooling it becomes ordered three dimensionally: at 90 K La1.4Sr1.6Mn2O7 it becomes an antiferromagnet, and at 65 K it undergoes a transition into a ferromagnetic phase. Using neutron diffraction techniques on a single crystal of La1.4Sr1.6Mn2O7 it has been shown that these two magnetic phases belong to a single structural phase and do not coexist at low temperatures. The application of pressure enhances the antiferromagnetic correlations between the Mn2O9 bilayers.
Original language | English |
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Pages (from-to) | art. no.-167203 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 87 |
Issue number | 16 |
DOIs | |
Publication status | Published - 15 Oct 2001 |
Keywords / Materials (for Non-textual outputs)
- LAYERED PEROVSKITE STRUCTURE
- MANGANITE LA2-2XSR1+2XMN2O7
- MAGNETIC-STRUCTURE
- MAGNETORESISTANCE