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Spins in molecular magnets can experience both anisotropic exchange interactions and on-site magnetic anisotropy. In this paper we study the effect of exchange anisotropy on the molecular magnetic anisotropy both with and without on-site…

Materials Science · Physics 2018-12-12 Sumit Haldar , Rajamani Raghunathan , Jean-Pascal Sutter , S. Ramasesha

The kagome lattice antiferromagnets Mn$_3$X(= Sn, Ge) have a noncollinear 120$^\circ$ ordered ground state, which engenders a strong anomalous Hall response. It has been shown that this response is linked to the magnetic order and can be…

Mesoscale and Nanoscale Physics · Physics 2022-11-16 Sayak Dasgupta , Oleg A. Tretiakov

The altermagnet candidate Mn5Si3 has attracted wide attention in the context of non-relativistic spin physics, due to its composition of light elements. However, the presumed structure of the altermagnetic phase had yet to be demonstrated.…

We consider the exchange couplings present in an effective Hamiltonian of $\alpha$-RuCl$_3$, known as the K-$\Gamma$ model. This material has a honeycomb lattice, and is expected to be a representative of the Kitaev materials (which can…

Strongly Correlated Electrons · Physics 2022-04-19 Ipsita Mandal

We report magnetic and inter-plane transport properties of Ca3Ru2O7 at high magnetic fields and low temperatures. Ca3Ru2O7 with a bilayered orthorhombic structure is a Mott-like system with a narrow charge gap of 0.1eV. Of a host of unusual…

Strongly Correlated Electrons · Physics 2009-11-10 G. Cao , L. Balicas , Y. Xin , J. E. Crow , C. S. Nelson

Owing to the unusual geometry of kagome lattices-lattices made of corner-sharing triangles-their electrons are useful for studying the physics of frustrated, correlated and topological quantum electronic states. In the presence of strong…

The kagome-lattice compounds RMn6Sn6 (R is a rare earth element), where the Mn atoms form a kagome net in the basal plane, are currently attracting a great deal of attention as they have been shown to host complex magnetic textures and…

We study the rare-earth magnets on a honeycomb lattice, and are particularly interested in the experimental consequences of the highly anisotropic spin interaction due to the spin-orbit entanglement. We perform a high-temperature series…

Strongly Correlated Electrons · Physics 2020-10-06 Zhu-Xi Luo , Gang Chen

Polarized neutron scattering experiments reveal the anisotropy of magnetic correlations in the candidate Kitaev material $\alpha$-RuCl$_3$. The anisotropy of the inelastic response at the magnetic Bragg positions is just opposite to the…

Strongly Correlated Electrons · Physics 2025-09-10 Markus Braden , Xiao Wang , Alexandre Bertin , Paul Steffens , Yixi Su

The anisotropy splitting in the ground state of the single-molecule magnet [Mn4O3Br(OAc)3(dbm)3] is studied by inelastic neutron scattering as a function of hydrostatic pressure. This allows a tuning of the anisotropy and thus the energy…

Strongly Correlated Electrons · Physics 2009-11-10 Andreas Sieber , Gregory Chaboussant , Roland Bircher , Colette Boskovic , Hans U. Guedel , George Christou , Hannu Mutka

Triangular-lattice systems host a variety of ground states, ranging from quantum spin liquids to magnetically ordered phases, the latter of which can exhibit a sequence of magnetic phase transitions under applied magnetic fields. Here, we…

The spin wave excitations of the ideal S=5/2 Kagome lattice antiferromagnet KFe3(OH)6(SO4)2 have been measured using high-resolution inelastic neutron scattering. We directly observe a flat mode which corresponds to a lifted "zero energy…

Strongly Correlated Electrons · Physics 2008-10-31 K. Matan , D. Grohol , D. G. Nocera , T. Yildirim , A. B. Harris , S. H. Lee , S. E. Nagler , Y. S. Lee

Motivated by recent experiments on Cs$_2$Cu$_3$SnF$_{12}$ and YCu$_{3}$(OH)$_{6}$Cl$_{3}$, we consider the ${S=1/2}$ Heisenberg model on the kagome lattice with nearest-neighbor super-exchange $J$ and (out-of-plane) Dzyaloshinskii-Moriya…

Strongly Correlated Electrons · Physics 2023-06-13 Francesco Ferrari , Sen Niu , Juraj Hasik , Yasir Iqbal , Didier Poilblanc , Federico Becca

We present a theoretical survey of magnetocrystalline anisotropies in (Ga,Mn)As epilayers and compare the calculations to available experimental data. Our model is based on an envelope function description of the valence band holes and a…

Materials Science · Physics 2015-05-13 J. Zemen , J. Kucera , K. Olejnik , T. Jungwirth

We report magnetic and electrical properties for single crystals of NdMn$_6$Sn$_6$ and SmMn$_6$Sn$_6$. They crystallize into a structure which has distorted, Mn-based kagome lattices, compared to the pristine kagome lattices in…

Strongly Correlated Electrons · Physics 2021-06-09 Wenlong Ma , Xitong Xu , Zihe Wang , Huibin Zhou , Madalynn Marshall , Zhe Qu , Weiwei Xie , Shuang Jia

Experimental studies of high-purity kagome-lattice antiferromagnets (KAFM) are of great importance in attempting to better understand the predicted enigmatic quantum spin-liquid ground state of the KAFM model. However, realizations of this…

Strongly Correlated Electrons · Physics 2021-06-02 W. Sun , T. Arh , M. Gomilšek , P. Koželj , S. Vrtnik , M. Herak , J. -X. Mi , A. Zorko

Layered transition metal trichalcogenides with the chemical formula $ABX_3$ have attracted recent interest as potential candidates for two-dimensional magnets. Using first-principles calculations within density functional theory, we…

Materials Science · Physics 2015-08-11 Nikhil Sivadas , Matthew W. Daniels , Robert H. Swendsen , Satoshi Okamoto , Di Xiao

Heat capacity and magnetic torque measurements are used to probe the anisotropic temperature-field phase diagram of the frustrated spin dimer compound Ba3Mn2O8 in the field range from 0T to 18T. For fields oriented along the c axis a single…

Strongly Correlated Electrons · Physics 2010-04-15 E. C. Samulon , K. A. Al-Hassanieh , Y. -J. Jo , M. C. Shapiro , L. Balicas , C. D. Batista , I. R. Fisher

The magnetic phase diagram and low-energy magnon excitations of structurally and magnetically chiral MnSb2O6 are reported. The specific heat and the static magnetization are investigated in magnetic fields up to 9 and 30 T, respectively,…

Strongly Correlated Electrons · Physics 2016-09-21 J. Werner , C. Koo , R. Klingeler , A. N. Vasiliev , Y. A. Ovchenkov , A. S. Polovkova , G. V. Raganyan , E. A. Zvereva

The transition-metal intercalated dichalcogenide CoNb$_3$S$_6$ is a triangular antiferromagnet that has recently been shown to exhibit a large anomalous Hall effect (AHE) below the N\'eel temperature, even though the response to an external…

Materials Science · Physics 2022-01-27 O. Heinonen , R. A. Heinonen , H. Park