The effect of uniaxial pressure on the magnetic anisotropy of the Mn 12-Ac single-molecule magnet

James H. Atkinson, K. Park, C. C. Beedle, D. N. Hendrickson, Y. Myasoedov, E. Zeldov, Jonathan R. Friedman

Research output: Contribution to journalArticlepeer-review

Abstract

We study the effect of uniaxial pressure on the magnetic hysteresis loops of the single-molecule magnet Mn12-Ac. We find that the application of pressure along the easy axis increases the fields at which quantum tunneling of magnetization occurs. The observations are attributed to an increase in the molecule's magnetic anisotropy constant D of 0.142(1)%/kbar. The increase in D produces a small, but measurable increase in the effective energy barrier for magnetization reversal. Density-functional theory calculations also predict an increase in the barrier with applied pressure.

Original languageEnglish
Article number47008
JournalEPL
Volume102
Issue number4
DOIs
StatePublished - May 2013

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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