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Pregled bibliografske jedinice broj: 1032907

Development of magnetic order in series of anisidine tetrachlorocuprate layered hybrid perovskites


Pajić, Damir; Šenjug, Pavla; Topić, Edi; Rubčić, Mirta
Development of magnetic order in series of anisidine tetrachlorocuprate layered hybrid perovskites // Joint European Magnetic Symposia Book of Abstracts / Svedlindh, Peter (ur.).
Uppsala: Joint European Magnetic Symposia, 2019. str. 918-918 (poster, međunarodna recenzija, sažetak, znanstveni)


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Naslov
Development of magnetic order in series of anisidine tetrachlorocuprate layered hybrid perovskites

Autori
Pajić, Damir ; Šenjug, Pavla ; Topić, Edi ; Rubčić, Mirta

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

Izvornik
Joint European Magnetic Symposia Book of Abstracts / Svedlindh, Peter - Uppsala : Joint European Magnetic Symposia, 2019, 918-918

Skup
Joint European Magnetic Symposia 2019

Mjesto i datum
Uppsala, Švedska, 26.-30.8.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
metal-organic hybrid compounds, layered structure, magnetic order, multiferroics

Sažetak
Metal-organic compounds with perovskite crystal structure provide a fertile playground for design of the multifunctional materials. Due to wide possibilities of combining the building blocks in such crystals, different physical properties can be tuned, such as elastic, conducting, optical, polar, magnetic. Some properties can be mutually dependent, and some orders mutually coupled, paving the way to design of the magnetoelectric multiferroics. One interesting example of the hybrid layered perovskite multiferroic is the ethylammonium tetrachlorocuprate, which consists of the ferromagnetic layers of corner sharing [CuCl4]2− octahedra connected by two layers of polarizable organic ions of C2H5NH3+. Motivated by its ferroelectricity and rich magnetic behaviour below 10.5 K, including magnetic anisotropy and transitions between different magnetic states, as well as recently observed change of magnetization with the structural changes above 300 K, we changed the composition of this metal-organic perovskite and studied the accompanied changes of the crystal structure and magnetic properties. Here we explored the novel series of the solid-state architectures consisting of the tetrachlorocuprate units and different anisidine isomers. Ortho-anisidinium, meta-anisidinium and para-anisidinium tetrachlorocuprates were prepared by crystallization from the mixed organic-aqueous solutions. In the crystal structure considerable change of geometry was observed: from the discrete square planar tetrachlorocuprate anions in the ortho-anisidinium compound to the Ruddlesden-Popper perovskite phase with slightly distorted layers built from CuCl 6 octahedra in the para-anisidinium compound. It seems that in the meta-anisidine compound structure resembles the para-compound, but with more distorted anionic layers. Up to now, we studied the temperature dependence of magnetization of the pure powder samples using SQUID magnetometer in temperature range 2–300 K at different magnetic fields and magnetic hysteresis loops in the ordered state. Large impact of geometric and electronic changes of the organic cation structure on magnetic properties was observed. Magnetic susceptibility in the paramagnetic state as well as the saturation magnetization are in agreement with spin 1/2 per Cu2+ ion. These spins remain in the paramagnetic state down to the lowest temperatures in the ortho-anisidinium tetrachlorocuprate showing that there are no magnetic interactions between the discrete planar [CuCl4]2- units. However, there are transitions to the ferromagnetic state measured at 4.2 K and 9.5 K for the meta-anisidinium and para-anisidinium tetrachlorocuprates, respectively. Their ferromagnetic-like hysteresis loops are very soft, without the observable coercivity, gaining very easily the saturation. Higher transition temperature is observed for larger separation between the cuprate plains, showing that packing of the isomers play an important role in transfering the interaction between the planes. Moreover, in the meta- compound magnetic transition is not so clearly ferromagnetic, that might be influenced with bigger canting of the tetrachlorocuprate octahedra and higher possibility for disorder in interlayer packing. This research showed that a small change in structure of the cation connecting the magnetic layers has drastic influence on the geometry and magnetism of the cuprate units within the structure, thus motivating us for further studies of such compounds with similar composition and structure. Authors acknowledge financial support of Croatian Science Foundation under the installation research project Multiferroic and Magnetoelectric Systems UIP-2014-09-8276.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekti:
HRZZ-UIP-2014-09-8276 - Magnetoelektrični multiferoični sustavi (FerMaEl) (Pajić, Damir, HRZZ - 2014-09) ( POIROT)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Mirta Rubčić (autor)

Avatar Url Pavla Šenjug (autor)

Avatar Url Damir Pajić (autor)

Avatar Url Edi Topić (autor)

Citiraj ovu publikaciju

Pajić, Damir; Šenjug, Pavla; Topić, Edi; Rubčić, Mirta
Development of magnetic order in series of anisidine tetrachlorocuprate layered hybrid perovskites // Joint European Magnetic Symposia Book of Abstracts / Svedlindh, Peter (ur.).
Uppsala: Joint European Magnetic Symposia, 2019. str. 918-918 (poster, međunarodna recenzija, sažetak, znanstveni)
Pajić, D., Šenjug, P., Topić, E. & Rubčić, M. (2019) Development of magnetic order in series of anisidine tetrachlorocuprate layered hybrid perovskites. U: Svedlindh, P. (ur.)Joint European Magnetic Symposia Book of Abstracts.
@article{article, editor = {Svedlindh, P.}, year = {2019}, pages = {918-918}, keywords = {metal-organic hybrid compounds, layered structure, magnetic order, multiferroics}, title = {Development of magnetic order in series of anisidine tetrachlorocuprate layered hybrid perovskites}, keyword = {metal-organic hybrid compounds, layered structure, magnetic order, multiferroics}, publisher = {Joint European Magnetic Symposia}, publisherplace = {Uppsala, \v{S}vedska} }
@article{article, editor = {Svedlindh, P.}, year = {2019}, pages = {918-918}, keywords = {metal-organic hybrid compounds, layered structure, magnetic order, multiferroics}, title = {Development of magnetic order in series of anisidine tetrachlorocuprate layered hybrid perovskites}, keyword = {metal-organic hybrid compounds, layered structure, magnetic order, multiferroics}, publisher = {Joint European Magnetic Symposia}, publisherplace = {Uppsala, \v{S}vedska} }




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