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The ground states of square lattice two-dimensional antiferromagnets with anisotropy in an external magnetic field are determined using Monte Carlo simulations and compared to theoretical analysis. We find a new phase in between the…

Mesoscale and Nanoscale Physics · Physics 2016-08-10 Rick Keesman , Mark Raaijmakers , A. E. Baerends , G. T. Barkema , R. A. Duine

In this paper, we use a new hybrid method to compute the thermodynamic behavior of the spin-1/2 Kagome antiferromagnet under the influence of a large external magnetic field. We find a T^2 low-temperature behavior and a very low sensitivity…

Experimental evidence for ferromagnetic ordering in isotropic atomically thin two-dimensional crystals has been missing until a bilayer Cr2Ge2Te6, and a three-atom thick monolayer CrI3 are shown to retain ferromagnetic ordering at finite…

Changes in the spin configuration of atomically-thin, magnetic van-der-Waals multilayers can cause drastic modifications in their opto-electronic properties. Conversely, the opto-electronic response of these systems provides information…

Mesoscale and Nanoscale Physics · Physics 2020-05-28 Zhe Wang , Marco Gibertini , Dumitru Dumcenco , Takashi Taniguchi , Kenji Watanabe , Enrico Giannini , Alberto F. Morpurgo

Thermal expansion, magnetostriction and magnetization measurements under magnetic field and hydrostatic pressure were performed on a $\mathrm{UAu_{2}Si_{2}}$ single crystal. They revealed a large anisotropy of magnetoelastic properties…

For antiferromagnetically coupled Fe/Cr multilayers the low field contribution to the resistivity, which is caused by the domain walls, is strongly enhanced at low temperatures. The low temperature resistivity varies according to a power…

Materials Science · Physics 2009-11-10 F. G. Aliev , R. Schad , A. Volodin , K. Temst , C. Van Haesendonck , Y. Bruynseraede , I. Vavra , V. K. Dugaev , R. Villar

We report some unusual magnetic properties observed in CoFe2O4 based ferrofluid (with an average particle size of D = 6 nm). More precisely, in addition to the low-field ferromagnetic (FM) phase transition with an intrinsic Curie…

Materials Science · Physics 2017-08-29 S. Sergeenkov , C. Stan , C. P. Cristescu , M. Balasoiu , N. S. Perov , C. Furtado

Two ferromagnetic phases, FM1 and FM2, were first proposed to exist in LaCrGe$_3$ based on a broad maximum in the temperature derivative of resistivity resembling that of the superconducting ferromagnet UGe$_2$ where FM1 and FM2 are…

Strongly Correlated Electrons · Physics 2023-05-24 R. R. Ullah , P. Klavins , X. D. Zhu , and V. Taufour

Resistive, magnetoresistive and magnetic properties of four kinds of pressed CrO2 powders, synthesized by hydrothermal method of chromic anhydride have been investigated. The particles in powders constituted of rounded particles (diameter…

Strongly Correlated Electrons · Physics 2015-06-05 N. V. Dalakova , B. I. Belevtsev , E. Yu. Beliayev , O. M. Bludov , V. A. Pashchenko , M. G. Osmolovsky , O. M. Osmolovskaya

Recent studies have shown that certain antiferromagnetic (AFM) materials with the same symmetry breaking as ferromagnets can generate sufficiently large ferromagnetic (FM) responses. Here, we report that the new AFM material NbMnAs exhibits…

Strongly Correlated Electrons · Physics 2026-02-05 Yuki Arai , Junichi Hayashi , Keiki Takeda , Hideki Tou , Eiichi Matsuoka , Hitoshi Sugawara , Hisashi Kotegawa

In this study we examine the phase transitions in single crystals of [(CH3)2NH2]Co(HCOO)3], using magnetization and specific heat measurements as a function of temperature and magnetic field. Magnetisation measurements indicate a transition…

Materials Science · Physics 2015-01-28 K. Vinod , C. S. Deepak , Shilpam Sharma , D. Sornadurai , C. S. Sundar , A. Bharathi

CrxSe (x\le1) is a class of quasi-layered binary compounds with potential applications in spintronics due to its intriguing antiferromagnetic properties. In this work, CrxSe single crystals with high Cr content (x=0.87, 0.91 and 0.95) were…

Materials Science · Physics 2023-12-01 Yuqing Bai , Shuang Pan , Ziqian Lu , Yuanyuan Gong , Guizhou Xu , Feng Xu

Within the family of altermagnets, CrSb is a metallic, collinearly ordered material that exhibits particularly strong symmetry-induced spin splitting in its band structure. In this study, we combine electrical magnetotransport measurements…

A number of rare-earth monopnictides have topologically non-trivial band structures together with magnetism and strong electronic correlations. In order to examine whether the antiferromagnetic (AFM) semimetal YbAs ($T\rm_N$ = 0.5 K)…

Strongly Correlated Electrons · Physics 2020-02-21 W. Xie , Y. Wu , F. Du , A. Wang , H. Su , Y. Chen , Z. Y. Nie , S. -K. Mo , M. Smidman , C. Cao , Y. Liu , T. Takabatake , H. Q. Yuan

The structural phase transition in hexagonal BaMnO$_3$ occurring at $T_c$=130 K was studied in ceramic samples using electron and X-ray diffraction, second harmonic generation as well as by dielectric and lattice dynamic spectroscopies. The…

We report on the strain-induced switch between ferromagnetic (FM) and antiferromagnetic (AFM) orderings in 1T-CrX2 (X = Se, Te) monolayers based on the first-principles calculations. The CrSe2 and CrTe2 monolayers without strains are found…

Mesoscale and Nanoscale Physics · Physics 2016-01-22 H. Y. Lv , W. J. Lu , D. F. Shao , Y. Liu , Y. P. Sun

The prediction of ferromagnetism at room temperature in Co-ZnO thin films has generated a large interest in the community due to the possible applications. However, the results are controversial, going from ferromagnetism to…

Materials Science · Physics 2009-11-11 A. Fouchet , W. Prellier , B. Mercey

Using the recently developed transfer-matrix renormalization group method, we have studied the thermodynamic properties of two-leg antiferromagnetic ladders in the magnetic field. Based on different behavior of magnetization, we found…

Strongly Correlated Electrons · Physics 2009-10-31 Xiaoqun Wang , Lu Yu

Specific heat of the layered NaxCoO2 (x=0.65, 0.70 and 0.75) oxides has been measured in the temperature range of 3-360 K and magnetic field of 0 and 9 T. The analysis of data, assuming the combined effect of inter-layer superexchange and…

Strongly Correlated Electrons · Physics 2009-11-11 A. Zorkovska , M. Orendac , J. Sebek , E. Santava , P. Svoboda , I. Bradaric , I. Savic , A. Feher

The magneto-optical technique has been employed to observe spontaneous ferromagnetic domain structures in La0.78Ca0.22MnO3 single crystals. The magnetic domain topology was found to be correlated with the intrinsic twin structure of the…

Strongly Correlated Electrons · Physics 2009-11-11 Grzegorz Jung , Vladimir Markovich , Kees van der Beek , Dmitrii Mogilyansky , Yakov M. Mukovskii