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The magnetic properties of the two isostructural molecule-based magnets, Ni(NCS)$_{2}$(thiourea)$_{2}$, $S$ = 1, [thiourea = SC(NH$_2$)$_2$] and Co(NCS)$_{2}$(thiourea)$_{2}$, $S$ = 3/2, are characterised using several techniques in order…

The magnetoelectric (ME) effects are investigated in a cubic compound SrCuTe2O6, in which uniform Cu2+ (S=1/2) spin chains with considerable spin frustration exhibit a concomitant antiferromagnetic transition and dielectric constant peak at…

Materials Science · Physics 2016-03-16 B. Koteswararao , Kyongjun Yoo , F. C. Chou , Kee Hoon Kim

All-electrical and programmable manipulations of ferromagnetic bits are highly pursued for the aim of high integration and low energy consumption in modern information technology. Methods based on the spin-orbit torque switching in heavy…

The performance of permanent magnets is intricately tied to their magnetic hysteresis loop. In this study, we investigate the heavy-fermion ferromagnet CeAgSb$_2$ through magnetization measurements under uniaxial stress. We observe a 2400 %…

Strongly Correlated Electrons · Physics 2024-10-30 Bin Shen , Franziska Breitner , Philipp Gegenwart , Anton Jesche

Current-induced magnetization dynamics in Co/Cu/Co trilayer nanopillars (~100nm in diameter) has been studied experimentally for large applied fields perpendicular to the layers. An abrupt and hysteretic increase in dynamic resistance is…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 B. Oezyilmaz , A. D. Kent , D. Monsma , J. Z. Sun , M. J. Rooks , R. H. Koch

The observation of giant coercivity exceeding 20 kOe at low temperatures in several transition-metal-based compounds has attracted significant attention from a fundamental perspective. This research is also relevant to developing…

Materials Science · Physics 2023-09-27 Jiro Kitagawa , Himawari Nomura , Terukazu Nishizaki

The magnetic behavior of the Ca3Co2O6 spin chain compound is characterized by a large Ising-like character of its ferromagnetic chains, set on triangular lattice, that are antiferromagnetically coupled. At low temperature, T < 7K, the 3D…

Strongly Correlated Electrons · Physics 2007-05-23 A. Maignan , V. Hardy , S. Hebert , M. Drillon , M. R. Lees , O. Petrenko , D. Mc K. Paul , D. Khomskii

Magnetization reversal in ferro- and ferrimagnets is a well-known archetype of non-equilibrium processes, where the volume fractions of the oppositely magnetized domains vary and perfectly compensate each other at the coercive magnetic…

The pursuit of high-performance, rare-earth-free magnetostrictive materials is crucial for advancing technologies in sensing, actuation, and microelectromechanical systems. Heusler alloys represent a promising, yet underexplored, class of…

Materials Science · Physics 2026-03-31 Pengju Wu , Jie Du , Liang Yao , Hang Li , Xiaodong Zhou , Tao Zhu , Wenhong Wang

Our results describe an unprecedented example of change in the mechanism of magnetically-induced electric polarization from spin current to spin-dependent p-d hybridization model. We have followed the evolution of the magnetic structures of…

Magnetism in semiconductor two-dimensional (2D) materials is gaining popularity due to its potential application in memory devices, sensors, spintronic and biomedical applications. Here, 2D Cobalt Telluride (CoTe) has been synthesized from…

Nano/micro-scale mechanical properties of multiferroic materials can be controlled by the external magnetic or electric field due to the coupling interaction. For the first time, a modularized multi-field nanoindentation apparatus for…

Instrumentation and Detectors · Physics 2013-06-25 Hao Zhou , Yongmao Pei , Hu Huang , Hongwei Zhao , Faxin Li , Daining Fang

We present the fabrication of metallic magnetic nanowires using a low temperature chemical process. We show that pressed powders and magnetically oriented samples exhibit a very high coercivity (6.5 kOe at 140 K and 4.8 kOe at 300 K). We…

Materials Science · Physics 2007-11-14 T. Maurer , F. Ott , G. Chaboussant , Y. Soumare , J. -Y. Piquemal , G. Viau

The molecule-based magnet [Ru$_2$(O$_2$CMe)$_4$]$_3$[Cr(CN)$_6$] contains two weakly-coupled, interpenetrating sublattices in a body-centered cubic structure. Although the field-dependent magnetization indicates a metamagnetic transition…

Materials Science · Physics 2015-05-13 Randy S. Fishman , Satoshi Okamoto , William W. Shum , Joel S. Miller

We use nuclear magnetic resonance to map the complete low-temperature phase diagram of the antiferromagnetic Ising-like spin-chain system BaCo2V2O8 as a function of the magnetic field applied along the chains. In contrast to the predicted…

Strongly Correlated Electrons · Physics 2018-04-16 M. Klanjsek , M. Horvatic , S. Kramer , S. Mukhopadhyay , H. Mayaffre , C. Berthier , E. Canevet , B. Grenier , P. Lejay , E. Orignac

We investigate the existence of linear magnetism in the metal organic framework materials MOF-74-Fe, MOF-74-Co, and MOF-74-Ni, using first-principles density functional theory. MOF-74 displays regular quasi-linear chains of open-shell…

Materials Science · Physics 2013-03-08 Pieremanuele Canepa , Yves J. Chabal , T. Thonhauser

Phenomena that are highly sensitive to magnetic fields can be exploited in sensors and non-volatile memories. The scaling of such phenomena down to the single molecule level may enable novel spintronic devices. Here we report…

Mesoscale and Nanoscale Physics · Physics 2015-10-09 Ben Warner , Fadi El Hallak , Henning Prüser , John Sharp , Mats Persson , Andrew J. Fisher , Cyrus F. Hirjibehedin

The structures and magnetic properties of the Co-Zr-B alloys near the Co5Zr composition were studied using adaptive genetic algorithm and first-principles calculations to guide further experimental effort on optimizing their magnetic…

Materials Science · Physics 2015-06-25 Xin Zhao , Liqin Ke , Manh Cuong Nguyen , Cai-Zhuang Wang , Kai-Ming Ho

Features of thermally-activated magnetization switching have been studied in a FeCoB nanomagnet using the N\'eel model. A method of a high-precision measurement of the coercive field, retention time, {\Delta} and the size of the switching…

Mesoscale and Nanoscale Physics · Physics 2020-02-05 Vadym Zayets

Cobalt carbide nanoparticles were processed using polyol reduction chemistry that offers high product yields in a cost effective single-step process. Particles are shown to be acicular in morphology and typically assembled as clusters with…