Above Room Temperature Ferromagnetism in Gd2B2Monolayer with High Magnetic Anisotropy

Taylan Gorkan, Erol Vatansever, Ümit Aklncl, Gökhan Gökoglu, Ethem Aktürk, Salim Ciraci

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

The realization of 2D ultrathin crystals with a ferromagnetic ground state that is sustainable at room temperature has been a real challenge now. By combining ab initio density functional theory with Monte Carlo simulations, we predicted a new 2D structure, Gd2B2 monolayer, which maintains its mechanical stability at elevated temperatures. More remarkably, it has a ferromagnetic ground state with high permanent magnetic moment, which persists far above room temperature. It exhibits high magnetocrystalline anisotropy along particular directions. We find also that both its magnetic anisotropy and Curie temperature can largely be altered by applied strain providing an excellent magnetoelastic tunability. This novel 2D crystal with high magnetic moment and Curie temperature combined with high structural and thermal stability can offer critical applications in magnetoelectronics.

Original languageEnglish
Pages (from-to)12816-12823
Number of pages8
JournalJournal of Physical Chemistry C
Volume124
Issue number23
DOIs
StatePublished - 11 Jun 2020
Externally publishedYes

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