Details

Autor(en) / Beteiligte

• Debnath, Anup
• Saha, Shyamal Kumar
• Joseph, Joshy
• Damodaran, Sudheesh Vilasini
• Sadasivuni, Kishor Kumar
• Kurian, Joji
• Thomas, Deepu
• Joseph, Deepu
• Tom, Emmanuel

Titel

Realization of a ferromagnetic ordering in an ultrathin layer of antiferromagnetic β-Co(OH)2 grown on a reduced graphene oxide sheet

Ist Teil von

• AIP Conference Proceedings, 2019, Vol.2162 (1)

Ort / Verlag

Melville: American Institute of Physics

Erscheinungsjahr

2019

Beschreibungen/Notizen

• Study of the interface interaction between an antiferromagnetic and a nonmagnetic or a diamagnetic material has a great interest in the area of research of the condensed matter physics. The β-Co(OH)2 is an antiferromagnetic layer type material having a Neel temperature of ∼11 K. The parallel Co spins are arranged in a single layer, and the antiparallel Co spins are arranged in alternate layers. Here, a thin layer of β-Co(OH)2 has been grown on a reduced graphene oxide (rGO) surface and ferromagnetism has been achieved. Ferromagnetism in the rGO/β-Co(OH)2 heterostructure arises because of charge transfer, and hence the reduction of Co spin moments of the adjacent layer of rGO surface. A huge coercivity of amount 2000 Oe at the temperature of 2 K, with a very low magnetic field for saturation of magnetization, has been observed for this heterostructure.