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LaAlO3 and SrTiO3 are insulating, nonmagnetic oxides, yet the interface between them exhibits a two-dimensional electron system with high electron mobility,1 superconductivity at low temperatures,2-6 and electric-field-tuned metal-insulator…

Superconductivity · Physics 2015-05-30 J. A. Bert , B. Kalisky , C. Bell , M. Kim , Y. Hikita , H. Y. Hwang , K. A. Moler

Using first-principles calculations, we demonstrate that the magnetic exchange interaction and the magnetocrystalline anisotropy of biatomic Fe chains grown in the trenches of the 5x1 reconstructed Ir(001) surface depend sensitively on the…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 Yuriy Mokrousov , Alexander Thiess , Stefan Heinze

We provide a complete and systematic first-principles study of the thermodynamic stability, structural parameters, and magnetic properties of the T1 non-collinear antiferromagnetic L1$_2$-IrMn$_3$ surface and L1$_2$-IrMn$_3$/Fe…

Materials Science · Physics 2020-10-16 Daniel Maldonado-Lopez , Noboru Takeuchi , Jonathan Guerrero-Sanchez

We use first-principles calculations based on density functional theory to investigate the magnetic exchange interaction of Fe clusters on Rh(111) and Ru(0001). We consider dimers, trimers, tetramers, and pentamers of different shape in fcc…

Mesoscale and Nanoscale Physics · Physics 2013-12-13 F. Otte , P. Ferriani , S. Heinze

The Eu-based compound, EuCu2As2, crystallizing in the ThCr2Si2-type tetragonal structure, has been synthesized and its magnetic behavior has been investigated by magnetization (M), heat-capacity (C) and electrical resistivity (rho)…

Strongly Correlated Electrons · Physics 2009-11-11 Kausik Sengupta , P. L. Paulose , E. V. Sampathkumaran , Th. Doert , J. P. F. Jemetio

Interfacial magnetism stimulates the discovery of giant magnetoresistance and spin-orbital coupling across the heterointerfaces, facilitating the intimate correlation between spin transport and complex magnetic structures. Over decades,…

Based on a multi-scale calculations, combining ab-initio methods with spin dynamics simulations, we perform a detailed study of the magnetic behavior of Ni2MnAl/Fe bilayers. Our simulations show that such a bilayer exhibits a small exchange…

Mesoscale and Nanoscale Physics · Physics 2017-09-06 Rocio Yanes , Eszter Simon , Sebastian Keller , Balazs Nagyfalusi , Sergii Khmelevsky , Laszlo Szunyogh , Ulrich Nowak

Within the framework of the $s$-$d(f)$ exchange model in the mean-field approximation for square, simple cubic, body-centered and face-centered cubic lattices, the formation of a ferromagnetic, spiral, and commensurate antiferromagnetic…

Strongly Correlated Electrons · Physics 2021-07-14 A. K. Pankratova , P. A. Igoshev , V. Yu. Irkhin

Our high-throughput computational screening of the Materials Project database has identified 140 candidate materials exhibiting antiferromagnetic behavior in the $Pnma$ space group. Through systematic density functional theory calculations…

Materials Science · Physics 2025-09-10 Sining Zhang , Zhengxuan Wang , Minping Zhang , Xilin Zhang , Guangtao Wang

Effects of the Co substitution have been observed on the structural, magnetic and magneto-transport properties of Fe2-xCoxMnSi alloy. Curie temperature (TC) and saturation magnetization (MS) of these alloys increased linearly with the Co…

Strongly Correlated Electrons · Physics 2015-12-01 Lakhan Bainsla , K. G. Suresh , M. Manivel Raja , A. K. Nigam

Hidden-order phases that occur in a number of correlated f-electron systems are among the most elusive states of electronic matter. Their investigations are hindered by the insensitivity of standard physical probes, such as neutron…

Strongly Correlated Electrons · Physics 2019-06-25 P. Y. Portnichenko , S. E. Nikitin , A. Prokofiev , S. Paschen , J. -M. Mignot , J. Ollivier , A. Podlesnyak , Siqin Meng , Zhilun Lu , D. S. Inosov

This work explores the static and dynamic magnetic properties of weakly antiferromagnetically coupled Fe/Ti superlattices, emphasizing the link between magnetic behavior and structural characteristics. HRTEM and XRD analyses confirm…

Here, we report experimental evidence suggesting the emergence of robust, possibly chiral, edge states in artificially engineered multilayers composed of alternating nanometer-thick layers of nonmagnetic aluminum (Al) and ferromagnetic…

Superconductivity · Physics 2025-07-29 M. Belogolovskii , I. P. Nevirkovets

The electronic origin of the huge magnetostructural effect in layered Fe-As compounds is elucidated using LiFeAs as a prototype. The crucial feature of these materials is the strong covalent bonding between Fe and As, which tends to…

Materials Science · Physics 2008-12-19 K. D. Belashchenko , V. P. Antropov

Non-collinear two-dimensional triangular lattice antiferromagnets (2D TLAF) are currently an area of very active research due to their unique magnetic properties, which lead to non-trivial quantum effects that experimentally manifest…

Strongly Correlated Electrons · Physics 2018-10-12 J. C. Leiner , Taehun Kim , Kisoo Park , Joosung Oh , T. G. Perring , H. C. Walker , X. Xu , Y. Wang , S. -W. Cheong , Je-Geun Park

Interlayer magnetic interactions play a pivotal role in determining the magnetic arrangement within van der Waals (vdW) magnets, and the remarkable tunability of these interactions through applied pressure further enhances their…

Materials Science · Physics 2024-04-16 Qiye Liu , Wenjie Su , Yue Gu , Xi Zhang , Xiuquan Xia , Le Wang , Ke Xiao , Xiaodong Cui , Xiaolong Zou , Bin Xi , Jia-Wei Mei , Jun-Feng Dai

Complex magneto structural behaviour of rare rich intermetallic Tb$_3$Co is reported in this study. Below the 84K (T$_N$), it undergoes a first order magnetic transition 72K confirmed from specific heat and magnetization measurements.…

Materials Science · Physics 2019-08-23 Srikanta Goswami , P. D. Babu , R. Rawat

Motivated by the recently discovered high-$T_c$ superconductor La$_3$Ni$_2$O$_7$, we comprehensively study this system using density functional theory and random phase approximation calculations. At low pressures, the Amam phase is stable,…

Superconductivity · Physics 2024-03-27 Yang Zhang , Ling-Fang Lin , Adriana Moreo , Thomas A. Maier , Elbio Dagotto

We report studies on the vibrational and elastic behavior of lithium oxide, Li2O around its superionic transition temperature. Phonon frequencies calculated using the ab-initio and empirical potential model are in excellent agreement with…

Materials Science · Physics 2012-06-04 M. K. Gupta , Prabhatasree Goel , R. Mittal , N. Choudhury , S. L. Chaplot

Inducing magnetic orders in a topological insulator (TI) to break its time reversal symmetry has been predicted to reveal many exotic topological quantum phenomena. The manipulation of magnetic orders in a TI layer can play a key role in…