Experimental percolation studies of two-dimensional honeycomb lattice: Li2Mn1-xTixO3

Sanghyun Lee, Junghwan Park, Jiyeon Kim, Kun Pyo Hong, Youngmi Song, Je Geun Park

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Li2MnO3with a S = 3/2 two-dimensional Mn honeycomb lattice has a Neel-type antiferromagnetic transition at TN= 36 K with a broad maximum in magnetic susceptibility at TM= 48 K. We have investigated site percolation effects by replacing Mn with nonmagnetic Ti, and completed a full phase diagram of Li2Mn1-xTi xO3solid solution systems to find that antiferromagnetic transition is continuously suppressed without a clear sign of changes in the Neel-type antiferromagnetic structure. The magnetic ordering eventually disappears at a critical concentration of xc= 0.7. This experimental observation is consistent with percolation theories for a honeycomb lattice when one considers up to 3rd nearest-neighbor interactions. This study highlights the importance of interaction beyond nearest neighbors even for the Mn element with relative localized 3d electrons in the honeycomb lattice.

Original languageEnglish
Article number306002
JournalJournal of Physics: Condensed Matter
Issue number30
StatePublished - Jul 30 2014
Externally publishedYes


  • honeycomb lattice.
  • percolation


Dive into the research topics of 'Experimental percolation studies of two-dimensional honeycomb lattice: Li2Mn1-xTixO3'. Together they form a unique fingerprint.

Cite this