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Ivica Zivkovic

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Related publications (78)

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Persistent antiferromagnetic order in heavily overdoped Ca1-xLaxFeAs2

László Forró, Henrik Moodysson Rønnow, Ivica Zivkovic, Philip Johannes Walter Moll, Ana Akrap, Edoardo Martino, Sergiy Katrych, Lidia Rocoffort de Vinnière

In the Ca1-xLaxFeAs2 (1 1 2) family of pnictide superconductors, we have investigated a highly overdoped composition (x = 0.56), prepared by a high-pressure, high-temperature synthesis. Magnetic measurements show an antiferromagnetic transition at T-N = 12 ...

2019

Magnetic and structural properties of Ni-substituted magnetoelectric Co4Nb2O9

Henrik Moodysson Rønnow, Ivica Zivkovic, Virgile Yves Favre

The magnetic and structural properties of polycrystalline Co4-xNixNb2O9 (x = 1, 2) have been investigated by neutron powder diffraction, magnetization and heat capacity measurements, and density functional theory (DFT) calculations. For x = 1, the compound ...

2019

Electric-Field-Induced Skyrmion Distortion and Giant Lattice Rotation in the Magnetoelectric Insulator Cu2OSeO3

Helmuth Berger, Henrik Moodysson Rønnow, Arnaud Magrez, Ivica Zivkovic, Jonathan White, Krunoslav Prsa, Ping Huang, Arash Alahgholipour Omrani

Uniquely in Cu2OSeO3, the Skyrmions, which are topologically protected magnetic spin vortexlike objects, display a magnetoelectric coupling and can be manipulated by externally applied electric (E) fields. Here, we explore the E-field coupling to the magne ...

American Physical Society2014

Nonlinear magnetic response in ruthenocuprates

Ivica Zivkovic, Helmuth Berger

We have performed an investigation of the nonlinear magnetic response in ruthenocuprates. A negative, diverging-like peak at the main magnetic transition T-N in RuSr2 RECu2O8 (RE = Gd, Y) indicates a possible canted antiferromagnetic order. Another well de ...

EDP Sciences, Springer2008

Homo- and Heterodinuclear Iron Clathrochelate Complexes with Functional Groups in the Ligand Periphery

Rosario Scopelliti, Kay Severin, Henrik Moodysson Rønnow, Andrzej Sienkiewicz, Ivica Zivkovic, Konstantin Zhurov, Cornel Fink, Mathieu Jérémie Marmier, José Luis Bila

2018

Magnetic structure of the topological semimetal YbMnSb2

Ivica Zivkovic, Jian Rui Soh

The antiferromagnetic (AFM) semimetal YbMnSb2 has recently been identified as a candidate topological material, driven by time-reversal symmetry breaking. Depending on the ordered arrangement of Mn spins below the Neel temperature, T-N = 345K, the electron ...

AMER PHYSICAL SOC2021

Pressure dependence of superconducting properties of layered BaNi2P2

Henrik Moodysson Rønnow, Ivica Zivkovic, Richard Gaal, Youngro Lee

The discovery of unconventional superconductivity in a broad class of iron-based materials invoked extensive research on the corresponding compounds of other transition metals. For instance, BaNi2P2 exhibits a superconducting transition with a critical tem ...

Elsevier2023

EuCd2As2: A Magnetic Semiconductor

Ivica Zivkovic, Jan Hugo Dil, Michele Puppin, Jian Rui Soh, Fei Guo

EuCd2As2 is now widely accepted as a topological semimetal in which a Weyl phase is induced by an external magnetic field. We challenge this view through firm experimental evidence using a combination of electronic transport, optical spectroscopy, and exci ...

2023

Direct electric field control of the skyrmion phase in a magnetoelectric insulator

Henrik Moodysson Rønnow, Ivica Zivkovic, Jonathan White

Magnetic skyrmions are topologically protected spin-whirls currently considered as promising for use in ultra-dense memory devices. Towards achieving this goal, exploration of the skyrmion phase response and under external stimuli is urgently required. Her ...

Nature Research2018

Electrical and Magnetic Properties of FeGa3 with Antisite Disorder

Henrik Moodysson Rønnow, Ivica Zivkovic, Ellen Fogh

We investigated the electronic and magnetic ground states of the cage compound FeGa3 under the presence of Fe antisite disorder (namely as Fe0.258Ga0.742) by x-ray diffraction (XRD), Mössbauer spectroscopy (MS), magnetization and electrical resistivity. Ou ...

2023

The role of bridging ligands in dinitrogen reduction and functionalization by uranium multimetallic complexes

Kay Severin, Marinella Mazzanti, Farzaneh Fadaei Tirani, Ivica Zivkovic, Alberto Fabrizio, Marta Falcone, Julie Renée Michelle Andrez, Luciano Barluzzi

2019

Exploration of the helimagnetic and skyrmion lattice phase diagram in Cu2OSeO3 using magnetoelectric susceptibility

Helmuth Berger, Henrik Moodysson Rønnow, Arnaud Magrez, Ivica Zivkovic, Jonathan White, Krunoslav Prsa, Arash Alahgholipour Omrani

Using superconducting quantum interference device magnetometry techniques, we have studied the change in magnetization versus applied ac electric field, i.e. the magnetoelectric (ME) susceptibility dM/dE, in the chiral-lattice ME insulator Cu2OSeO3. Measur ...

Amer Physical Soc2014

Weyl metallic state induced by helical magnetic order

Henrik Moodysson Rønnow, Jan Hugo Dil, Ivica Zivkovic, Jian Rui Soh, Xupeng Yang

In the rapidly expanding field of topological materials there is growing interest in systems whose topological electronic band features can be induced or controlled by magnetism. Magnetic Weyl semimetals, which contain linear band crossings near the Fermi ...

Nature Portfolio2024

Experimental and theoretical thermodynamic studies in Ba2MgReO6-the ground state in the context of Jahn-Teller effect

Henrik Moodysson Rønnow, Ivica Zivkovic, Jana Pásztorová

We address the degeneracy of the ground state multiplet on the 5d(1) Re6+ ion in double perovskite Ba2MgReO6 using a combination of specific heat measurements and density functional calculations. For Ba2MgReO6, two different ground state multiplets have pr ...

IOP Publishing Ltd2023

Multimetallic Uranium Nitride Cubane Clusters from Dinitrogen Cleavage

Rosario Scopelliti, Marinella Mazzanti, Farzaneh Fadaei Tirani, Ivica Zivkovic, Mikhail Batov

Dinitrogen cleavage provides an attractive but poorly studied route to the assembly of multimetallic nitride clusters. Here, we show that the monoelectron reduction of the dinitrogen complex [{U(OC6H2-Bu-3(t)-2,4,6)(3)}(2)(mu-eta(2):eta(2)-N-2)], 1, allows ...

2023

Dynamic Jahn-Teller effect in the strong spin-orbit coupling regime

Federico Pisani, Henrik Moodysson Rønnow, Oleg Yazyev, Ivica Zivkovic, Jian Rui Soh, Davor Tolj, Jana Pásztorová, Ravi Yadav, Oleg Malanyuk

Exotic quantum phases, arising from a complex interplay of charge, spin, lattice and orbital degrees of freedom, are of immense interest to a wide research community. A well-known example of such an entangled behavior is the Jahn-Teller effect, where the l ...

Nature Research2024

Ferrimagnetic 120 degrees magnetic structure in Cu2OSO4

Helmuth Berger, Henrik Moodysson Rønnow, Arnaud Magrez, Ivica Zivkovic, Lin Yang, Gregory Scott Tucker, Nicola Casati, Virgile Yves Favre

We report magnetic properties of a 3d(9) (Cu2+) magnetic insulator Cu2OSO4 measured on both powder and single crystal. The magnetic atoms of this compound form layers whose geometry can be described either as a system of chains coupled through dimers or as ...

AMER PHYSICAL SOC2020

Dinuclear clathrochelate complexes with pendent cyano groups as metalloligands

Rosario Scopelliti, Kay Severin, Henrik Moodysson Rønnow, Philip Pattison, Ivica Zivkovic, Bálint Náfrádi, Euro Solari, Giacomo Cecot, Mathieu Jérémie Marmier, José Luis Bila

Dinuclear clathrochelate complexes with two, three, four, or five cyano groups in the ligand periphery were prepared following two distinct synthetic strategies: (a) zinc(II)- or cobalt(II)-templated polycondensation reactions of CN-functionalized arylboro ...

2016

Tuning Topological Spin Textures in Size-Tailored Chiral Magnet Insulator Particles

Henrik Moodysson Rønnow, Arnaud Magrez, Ivica Zivkovic, Thomas La Grange, Priya Ranjan Baral

Topological spin textures such as skyrmions hold high potential for use as magnetically active elements in diverse near-future applications. While skyrmions in metallic multilayers attract great attention in this context, unleashing the myriad potential of ...

2022

C-H Bond Activation by an Isolated Dinuclear U(III)/U(IV) Nitride

Rosario Scopelliti, Marinella Mazzanti, Ivica Zivkovic, Chad Thomas Palumbo

Synthetic studies of bimetallic uranium nitride complexes with the N(SiMe3)(2) ligand have generated a new nitride complex of U(III), which is highly reactive toward C-H bonds and H-2. Treatment of the previously reported U(IV)/U(IV) nitride complex [Na(DM ...

2020