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Babić E, Drobac Đ, Figueroa IA, Laurent-Brocq M, Marohnić Ž, Mikšić Trontl V, Pajić D, Perrière L, Pervan P, Remenyi G, Ristić R, Salčinović Fetić A, Starešinić D, Zadro K. Transition from High-Entropy to Conventional Alloys: Which Are Better? Materials (Basel) 2021; 14:5824. [PMID: 34640219 PMCID: PMC8510487 DOI: 10.3390/ma14195824] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/25/2021] [Accepted: 09/29/2021] [Indexed: 12/04/2022]
Abstract
The study of the transition from high-entropy alloys (HEAs) to conventional alloys (CAs) composed of the same alloying components is apparently important, both for understanding the formation of HEAs and for proper evaluation of their potential with respect to that of the corresponding CAs. However, this transition has thus far been studied in only two types of alloy systems: crystalline alloys of iron group metals (such as the Cantor alloy and its derivatives) and both amorphous (a-) and crystalline alloys, TE-TL, of early (TE = Ti, Zr, Nb, Hf) and late (TL = Co, Ni, Cu) transition metals. Here, we briefly overview the main results for the transition from HEAs to CAs in these alloy systems and then present new results for the electronic structure (ES), studied with photoemission spectroscopy and specific heat, atomic structure, thermal, magnetic and mechanical properties of a-TE-TL and Cantor-type alloys. A change in the properties of the alloys studied on crossing from the HEA to the CA concentration range mirrors that in the ES. The compositions of the alloys having the best properties depend on the alloy system and the property selected. This emphasizes the importance of knowing the ES for the design of new compositional complex alloys with the desired properties.
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Affiliation(s)
- Emil Babić
- Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia; (D.P.); (K.Z.)
| | - Đuro Drobac
- Institute of Physics, 10000 Zagreb, Croatia; (Đ.D.); (Ž.M.); (V.M.T.); (P.P.); (D.S.)
| | | | | | - Željko Marohnić
- Institute of Physics, 10000 Zagreb, Croatia; (Đ.D.); (Ž.M.); (V.M.T.); (P.P.); (D.S.)
| | - Vesna Mikšić Trontl
- Institute of Physics, 10000 Zagreb, Croatia; (Đ.D.); (Ž.M.); (V.M.T.); (P.P.); (D.S.)
| | - Damir Pajić
- Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia; (D.P.); (K.Z.)
| | - Loїc Perrière
- ICMPE, Universite Paris Est, 94320 Thiais, France; (M.L.-B.); (L.P.)
| | - Petar Pervan
- Institute of Physics, 10000 Zagreb, Croatia; (Đ.D.); (Ž.M.); (V.M.T.); (P.P.); (D.S.)
| | | | - Ramir Ristić
- Physics Department, Josip Juraj Strossmayer University, 31000 Osijek, Croatia;
| | - Amra Salčinović Fetić
- Department of Physics, Faculty of Science, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina;
| | - Damir Starešinić
- Institute of Physics, 10000 Zagreb, Croatia; (Đ.D.); (Ž.M.); (V.M.T.); (P.P.); (D.S.)
| | - Krešo Zadro
- Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia; (D.P.); (K.Z.)
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Torić F, Pavlović G, Pajić D, Hrenar T, Zadro K, Cindrić M. Tetranuclear dicubane Ni(II) complexes with antiferromagnetically interacting Ni(II) ions: Solvothermal synthesis and magnetostructural study. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.09.068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
Seven tetranuclear Ni(ii) cubane complexes with unexpectedly high χT maxima coming from the ZFS contribution and with an interesting magneto-structural correlation.
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Affiliation(s)
- Filip Torić
- Department of Physics
- Faculty of Science
- University of Zagreb
- Croatia
| | | | - Damir Pajić
- Department of Physics
- Faculty of Science
- University of Zagreb
- Croatia
| | - Marina Cindrić
- Department of Chemistry
- Faculty of Science
- University of Zagreb
- Croatia
| | - Krešo Zadro
- Department of Physics
- Faculty of Science
- University of Zagreb
- Croatia
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Cindrić M, Pavlović G, Pajić D, Zadro K, Cinčić D, Hrenar T, Lekšić E, Belen Pinar Prieto A, Lazić P, Šišak Jung D. Correlation between structural, physical and chemical properties of three new tetranuclear NiII clusters. NEW J CHEM 2016. [DOI: 10.1039/c6nj00287k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The structural alteration in investigated tetranuclear NiII clusters induced only by solvent exchange resulted in significant changes in their physical and chemical properties.
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Affiliation(s)
- Marina Cindrić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- HR-10000 Zagreb
- Croatia
| | - Gordana Pavlović
- University of Zagreb
- Faculty of Textile Technology
- Department of Applied Chemistry
- HR-10000 Zagreb
- Croatia
| | - Damir Pajić
- University of Zagreb
- Faculty of Science
- Department of Physics
- HR-10000 Zagreb
- Croatia
| | - Krešo Zadro
- University of Zagreb
- Faculty of Science
- Department of Physics
- HR-10000 Zagreb
- Croatia
| | - Dominik Cinčić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- HR-10000 Zagreb
- Croatia
| | - Tomica Hrenar
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- HR-10000 Zagreb
- Croatia
| | | | | | - Predrag Lazić
- Institute Ruđer Bosković
- Department for Theoretical Physics
- 10000 Zagreb
- Croatia
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Androš L, Jurić M, Popović J, Pajić D, Zadro K, Molčanov K, Žilić D, Planinić P. 1D Heterometallic Oxalate Compounds as Precursors for Mixed Ca–Cr Oxides – Synthesis, Structures, and Magnetic Studies. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402644] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lidija Androš
- Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia, http://www.irb.hr/eng/People/Marijana‐Juric
| | - Marijana Jurić
- Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia, http://www.irb.hr/eng/People/Marijana‐Juric
| | - Jasminka Popović
- Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia, http://www.irb.hr/eng/People/Marijana‐Juric
| | - Damir Pajić
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička cesta 32, 10000 Zagreb, Croatia
| | - Krešo Zadro
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička cesta 32, 10000 Zagreb, Croatia
| | - Krešimir Molčanov
- Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia, http://www.irb.hr/eng/People/Marijana‐Juric
| | - Dijana Žilić
- Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia, http://www.irb.hr/eng/People/Marijana‐Juric
| | - Pavica Planinić
- Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia, http://www.irb.hr/eng/People/Marijana‐Juric
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Lackner P, Pajic D, Reissner M, Novosel N, Zadro K, Stöger-Pollach M, Babic E. Size distribution of FeNiB nanoparticles. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20147505008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lončarek I, M. Tonejc A, Skoko Ž, Novosel N, Mustapić M, Zadro K. Composition and Morphology Investigation of NiCoB Nanoparticles, as-Prepared and Coated by SiO2. CROAT CHEM ACTA 2013. [DOI: 10.5562/cca2234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Molčanov K, Kojić-Prodić B, Babić D, Pajić D, Novosel N, Zadro K. Temperature induced reversible structural and magnetic changes in a crystal of tetrachlorosemiquinone anion radical. CrystEngComm 2012. [DOI: 10.1039/c2ce25893e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kojić-Prodić B, Molčanov K, Babić D, Pajić D, Novosel N, Zadro K. Magnetic bistability in the salt of organic radical anion-tetrachlorosemiquinone. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311090581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Zilić D, Pajić D, Jurić M, Molčanov K, Rakvin B, Planinić P, Zadro K. Single crystals of DPPH grown from diethyl ether and carbon disulfide solutions - crystal structures, IR, EPR and magnetization studies. J Magn Reson 2010; 207:34-41. [PMID: 20833090 DOI: 10.1016/j.jmr.2010.08.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 07/15/2010] [Accepted: 08/06/2010] [Indexed: 05/29/2023]
Abstract
Single crystals of the free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) obtained from diethyl ether (ether) and carbon disulfide (CS₂) were characterized by the X-ray diffraction, IR, EPR and SQUID magnetization techniques. The X-ray structural analysis and IR spectra showed that the DPPH form crystallized from ether (DPPH1) is solvent free, whereas that one obtained from CS₂ (DPPH2) is a solvate of the composition 4DPPH·CS₂. Principal values of the g-tensor were estimated by the X-band EPR spectroscopy at room and low (10 K) temperatures. Magnetization studies revealed the presence of antiferromagnetically coupled dimers in both types of crystals. However, the way of dimerization as well as the strength of exchange couplings are different in the two DPPH samples, which is in accord with their crystal structures. The obtained results improved parameters accuracy and enabled better understanding of properties of DPPH as a standard sample in the EPR spectrometry.
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Affiliation(s)
- Dijana Zilić
- Ruder Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia.
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Jurić M, Perić B, Brničević N, Planinić P, Pajić D, Zadro K, Giester G, Kaitner B. Supramolecular motifs and solvatomorphism within the compounds [M(bpy)3]2[NbO(C2O4)3]Cl·nH2O (M = Fe2+, Co2+, Ni2+, Cu2+and Zn2+; n = 11, 12). Syntheses, structures and magnetic properties. Dalton Trans 2008:742-54. [DOI: 10.1039/b707937k] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pajić D, Zadro K, Ristić R, Zivković I, Skoko Z, Babić E. Thermal relaxation of magnetic clusters in amorphous Hf(57)Fe(43) alloy. J Phys Condens Matter 2007; 19:296207. [PMID: 21483078 DOI: 10.1088/0953-8984/19/29/296207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The magnetization processes in binary magnetic/non-magnetic amorphous alloy Hf(57)Fe(43) are investigated by the detailed measurement of magnetic hysteresis loops, temperature dependence of magnetization, relaxation of magnetization and magnetic ac susceptibility, including a nonlinear term. Blocking of magnetic moments at lower temperatures is accompanied by the slow relaxation of magnetization and magnetic hysteresis loops. All of the observed properties are explained by the superparamagnetic behaviour of the single domain magnetic clusters inside the non-magnetic host, their blocking by the anisotropy barriers and thermal fluctuation over the barriers accompanied by relaxation of magnetization. From magnetic viscosity analysis based on thermal relaxation over the anisotropy barriers it is found that magnetic clusters occupy the characteristic volume from 25 up to 200 nm(3). The validity of the superparamagnetic model of Hf(57)Fe(43) is based on the concentration of iron in the Hf(100-x)Fe(x) system that is just below the threshold for long range magnetic ordering. This work also throws more light on the magnetic behaviour of other amorphous alloys.
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Affiliation(s)
- Damir Pajić
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička cesta 32, HR-10000 Zagreb, Croatia
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Jurić M, Perić B, Brničević N, Planinić P, Pajić D, Zadro K, Giester G. Structure, stacking interactions and magnetism of compounds with oxalate-bridged dinuclear CuIICuII and CuIINbV units. Polyhedron 2007. [DOI: 10.1016/j.poly.2006.08.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Jurić M, Planinić P, Brničević N, Milić D, Matković-Čalogović D, Pajić D, Zadro K. New Heterometallic (CuII and CrIII) Complexes – First Crystal Structure of an Oxalate-Bridged Ferromagnetically Coupled [CuIICrIIICuII] System. Eur J Inorg Chem 2006. [DOI: 10.1002/ejic.200501092] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Rakvin B, Zilić D, Dalal NS, North JM, Cevc P, Arcon D, Zadro K. An EPR method for probing surface magnetic fields, dipolar distances, and magnetization fluctuations in single molecule magnets. Spectrochim Acta A Mol Biomol Spectrosc 2004; 60:1241-1245. [PMID: 15134721 DOI: 10.1016/j.saa.2003.10.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2003] [Accepted: 10/11/2003] [Indexed: 05/24/2023]
Abstract
We outline a spectroscopic method for probing the effective magnetic field B on the surface of crystals of the single molecule magnet (SMM) [(C6H15N3)6Fe8(mu3-O)2(mu2-OH)12]Br7(H2O)Br.H2O, (Fe8Br8). This technique utilizes the line shape changes in the EPR spectra of the organic radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) (g = 2.0036, single peak) adsorbed onto the sample. The temperature dependence of the EPR line shifts scale with the sample's magnetization as measured by a SQUID magnetometer. Analysis of the line shape in terms of dipolar coupling between the DPPH and the SMM molecules on the surface, yields their average dipolar distance. The method's potential for measuring the magnetization fluctuation dynamics is briefly pointed out using the SMM [Mn12O12(CH3COO)16(H2O)4].2CH3COOH.4H2O (Mn12-acetate).
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Affiliation(s)
- B Rakvin
- Department of Physical Chemistry, Ruder Bosković Institute, Bijenicka 54, P.O. Box 180, Zagreb 10002, Croatia.
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