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Thin epitaxial films of Tb metal were grown on a clean W(110) substrate in ultra-high vacuum and studied in-situ by low-energy electron microscopy. Annealed films present magnetic contrast in spin-polarized low-energy electron microscopy.…

Materials Science · Physics 2016-12-01 J. E. Prieto , Gong Chen , A. K. Schmid , J. de la Figuera

Layered antiferromagnetic materials have emerged as a novel subset of the two-dimensional family providing a highly accessible regime with prospects for layer-number-dependent magnetism. Furthermore, transition metal phosphorous…

Materials Science · Physics 2024-01-09 Daniel J. Gillard , Daniel Wolverson , Oscar M. Hutchings , Alexander I. Tartakovskii

We analyze the temperature dependence of the entropy of the spin-1/2 Heisenberg model on the three-dimensional simple-cubic lattice, for both the case of antiferromagnetic and ferromagnetic nearest neighbor exchange interactions. Using…

Strongly Correlated Electrons · Physics 2015-05-14 Stefan Wessel

Nb3Sn films were fabricated by multilayer sequential sputtering on Nb at substrate temperatures ranging from room temperature to 250 {\deg}C. The multilayers were then annealed inside a separate vacuum furnace at 950 {\deg}C for 3h. The…

The magnetization processes of the spin-3/2 antiferromagnet LiInCr4O8 comprising a "breathing" pyrochlore lattice, which is an alternating array of small and large tetrahedra, are studied under ultrahigh magnetic fields of up to 130 T using…

We have investigated the coupling of lattice with spin via strain interactions in the CoFe2O4/PMN-PT composite system. X-ray diffraction and Raman spectroscopic studies illustrate a remarkable modification in CoFe2O4lattice across Curie…

We utilize ultrafast photoexcitation to drive coherent lattice oscillations in the layered ferrimagnetic crystal Mn3Si2Te6, which significantly stiffen below the magnetic ordering temperature. We suggest that this is due to an…

Low-temperature magnetization curves and thermodynamics of a spin-1/2 Heisenberg octahedral chain with the intraplaquette and monomer-plaquette interactions are examined within a two-component lattice-gas model of hard-core monomers, which…

Statistical Mechanics · Physics 2018-11-19 Jozef Strecka , Johannes Richter , Oleg Derzhko , Taras Verkholyak , Katarina Karlova

Ag2CrO2 is an S=3/2 frustrated triangular lattice antiferromagnet without orbital degree of freedom. With decreasing temperature, a 4-sublatice spin state develops. However, a long-range partially disordered state with 5 sublattices…

Strongly Correlated Electrons · Physics 2012-04-13 M. Matsuda , H. Yoshida , M. Isobe , C. de la Cruz , R. S. Fishman

In this study, we determined the different physical characteristics of nanoscale layered mixed Fe-Co layers of orthoferrite SmFe0.5Co0.5O3 based on magnetic and dielectric measurements.Magnetization analyzes showed that the system was…

Materials Science · Physics 2018-12-27 Ashish Shukla , Akash Singh , Md. Motin Seikh , Asish K Kundu

We used a local susceptibility approach in extensive polarized neutron diffraction studies of the spin liquid \tbti. For a magnetic field applied along the [110] and [111] directions, we found that, at high temperature, all Tb moments are…

Strongly Correlated Electrons · Physics 2015-05-13 Arsen Gukasov , Huibo Cao , Isabelle Mirebeau , Pierre Bonville

We apply the finite-temperature variational cluster approach to a strongly correlated and spin-orbit coupled model for four electrons (i.e. two holes) in the $t_{2g}$ subshell. We focus on parameters suitable for antiferromagnetic Mott…

Strongly Correlated Electrons · Physics 2021-07-21 Jan Lotze , Maria Daghofer

Zinc ferrite (ZnFe$_{\text{2}}$O$_{\text{4}}$) epitaxial thin films were grown by reactive magnetron sputtering on MgAl$_{\text{2}}$O$_{\text{4}}$ and Al$_{\text{2}}$O$_{\text{3}}$ substrates varying a range of preparation parameters. The…

Other Condensed Matter · Physics 2023-01-27 Julia Lumetzberger , Verena Ney , Anna Zhakarova , Nieli Daffe , Daniel Primetzhofer , Andreas Ney

The interplay between half-metallic ferromagnetism and spin-orbit coupling within the inversion symmetry-broken structure of half Heuslers provides an ideal platform for various spintronics functionalities. Taking advantage of good lattice…

Nuclear spin-lattice relaxation times are measured on copper using magnetic resonance force microscopy performed at temperatures down to 42 mK. The low temperature is verified by comparison with the Korringa relation. Measuring spin-lattice…

Zero field cooled (ZFC)/Field Cooled (FC) magnetization curves of a bulk MnO single crystal show a peculiar peak at low temperatures (~40K) similar to the low temperature peak observed in MnO nanoparticles. In order to investigate the…

Materials Science · Physics 2017-08-02 X. Sun , E. Feng , Y. Su , K. Nemkovski , O. Petracic , T. Brückel

$\alpha$-MnTe is an antiferromagnetic semiconductor with above room temperature $T_N$ = 310 K, which is promising for spintronic applications. Recently, it was reported to be an altermagnet, containing bands with momentum-dependent spin…

Materials Science · Physics 2024-10-28 Isaiah Gray , Qinwen Deng , Qi Tian , Michael Chilcote , J. Steven Dodge , Matthew Brahlek , Liang Wu

Lattice dynamics and magnetic excitations are investigated to elucidate the origin of magneto-dielectric effects in the S=1/2 two-dimensional quantum spin compound K$_2$V$_3$O$_8$. We find evidence for lattice instabilities at 110 K and 60…

Strongly Correlated Electrons · Physics 2015-06-04 K. -Y. Choi , P. Lemmens , V. P. Gnezdilov , B. C. Sales , M. D. Lumsden

The polycrystalline co-doped samples of Sm0.5Y0.5Fe0.58Mn0.42O3 were prepared by solid-state reaction route and its various physical properties with their correlations have been investigated. The dc magnetization measurements on the sample…

Two-dimensional (2D) Van der Waals compounds exhibit interesting electronic and magnetic properties due to complex intra-layer and inter-layer interactions, which are of immense importance in realizing exotic physics as well as advanced…

Strongly Correlated Electrons · Physics 2025-01-22 Smita Gohil , Saswata Halder , Karthik K Iyer , Shankar Ghosh , A. Thamizhavel , Kalobaran Maiti
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