Pressure-enhanced 3D antiferromagnetic correlations in La1.4Sr1.6Mn2O7

K V Kamenev, G J McIntyre, Z Arnold, J Kamarad, M R Lees, G Balakrishnan, E M L Chung, D M Paul

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)art. no.-167203
Number of pages4
JournalPhysical Review Letters
Volume87
Issue number16
DOIs
Publication statusPublished - 15 Oct 2001

Keywords / Materials (for Non-textual outputs)

  • LAYERED PEROVSKITE STRUCTURE
  • MANGANITE LA2-2XSR1+2XMN2O7
  • MAGNETIC-STRUCTURE
  • MAGNETORESISTANCE

Fingerprint

Dive into the research topics of 'Pressure-enhanced 3D antiferromagnetic correlations in La1.4Sr1.6Mn2O7'. Together they form a unique fingerprint.

Cite this