Naslov
Magnetoelectric multiferroic guanidinium copper(II) formate

Autori
Šenjug, Pavla ; Dragović, Jure ; Torić, Filip ; Rubčić, Mirta ; Smokrović, Kristina ; Đilović, Ivica, Pajić, Damir

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Solid state science and research 2019 : book of abstracts / Biliškov, Nikola - Zagreb : Institut Ruđer Bošković, 2019, 90-90

ISBN
978-953-7941-32-1

Skup
Solid State Science and Research Meeting

Mjesto i datum
Zagreb, Hrvatska, 27.06.2019. - 29.06.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Metal-organic hybrid compounds, magnetic order, multiferroics

Sažetak
In this work we have studied magnetic and magnetoelectric properties of guanidinium copper(II) formate, [C(NH 2 ) 3 ][Cu(HCOO) 3 ], previously known but unexplored material. Measurements were performed using MPMS5 SQUID magnetometer. Temperature dependence of magnetization showed a broad peak centered at 45 K and a sharp rise of magnetization below 5 K. Such behaviour of magnetization could be explained with peculiar structure of this compound, where the framework consists of Cu-formate chains. The broad peak at 45 K can be ascribed to antiferromagnetic order within the Cu- formate chains and the sharp rise of magnetization below 5 K to the formation of complex 3D spin long range order. In some directions hysteresis loops at the temperatures below 5 K showed a sharp increase of magnetization for the fields lower than 50 Oe. The existence of anisotropy could be seen in both M(H) and M(T) measurements. The effect of electric field on the magnetization was observed at temperatures below 5 K as a difference in magnetization curves measured with and without the applied electric field, pointing to the existence of substantial magnetoelectric coupling. Besides ferromagnetic order, some signs of ferroelectric order were also observed, confirming the [C(NH 2 ) 3 ][Cu(HCOO) 3 ] as a magnetoelectric multiferroic. Search for the explanations of observed magnetic behaviour is in progress considering the interesting crystal structure of this compound.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

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