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We study inter-skyrmion interactions and stable spin configurations in a 2D chiral magnet with in-plane anisotropies of a tilted magnetic field and the magneto-crystalline anisotropy on a (011) thin film. We find that in both cases a small…

Mesoscale and Nanoscale Physics · Physics 2021-12-15 Mai Kameda , Rio Koyama , Takuro Nakajima , Yuki Kawaguchi

I revisit the well-known structural transition between hexagonal and square skyrmion lattices induced by increasing easy-plane anisotropy in quasi-two-dimensional chiral magnets. I show that the hexagonal skyrmion order, by the first-order…

Mesoscale and Nanoscale Physics · Physics 2024-09-04 Andrey O. Leonov

Precision measurements of the magnetization and ac susceptibility of Cu$_2$0SeO$_3$ are reported for magnetic fields along different crystallographic directions, focussing on the border between the conical and the field-polarized state for…

Strongly Correlated Electrons · Physics 2021-04-01 M. Halder , A. Chacon , A. Bauer , W. Simeth , S. Mühlbauer , H. Berger , L. Heinen , M. Garst , A. Rosch , C. Pfleiderer

The magnetic inhomogeneity of the A-phase in MnSi chiral magnet is identified for the first time from the precise measurements of transverse magnetoresistance (MR) anisotropy. The area inside the A-phase (A-phase core) corresponds to…

Strongly Correlated Electrons · Physics 2015-07-13 S. V. Demishev , I. I. Lobanova , N. E. Sluchanko , V. V. Glushkov

The trigonal PtBi$_2$ (t-PtBi$_2$) as a Weyl semimetal possessing triply degenerate points in its electronic bands near the Fermi level endows it with rich electronic properties. Previous studies have already measured the planar Hall effect…

Materials Science · Physics 2025-07-22 Fangqi Cai , Mingxi Chi , Yingjie Hu , Heyao Liu , Yangyang Chen , Chao Jing , Wei Ren , He Wang

We have carried out magnetization, heat capacity, electrical and magnetoresistance measurements (2-300 K) for the polycrystalline form of intermetallic compounds, R2RhSi3 (R= Gd, Tb, and Dy), forming in a AlB2 derived hexagonal structure…

Strongly Correlated Electrons · Physics 2020-05-20 Ram Kumar , Kartik K Iyer , P. L. Paulose , E. V. Sampathkumaran

The entropic signatures of magnetic phase transitions in the skyrmion lattice host compounds MnSi0.962Al0.038 and Fe0.7Co0.3Si were investigated through low field magnetization and ac susceptibility measurements. These data indicate that…

Materials Science · Physics 2020-12-11 C. Dhital , J. F. DiTusa

Motivated by recent experiments in Gd$_3$Ru$_4$Al$_{12}$, we demonstrate the emergence of atomic scale Skyrmions in interacting spins on a breathing kagome lattice with competing nearest neighbor ferromagnetic and next nearest neighbor…

Strongly Correlated Electrons · Physics 2022-03-08 Nyayabanta Swain , Munir Shahzad , Pinaki Sengupta

We study the effects of an in-plane Dzyaloshinskii-Moriya interaction under an external magnetic field in the highly frustrated kagome antiferromagnet. We focus on the low-temperature phase diagram, which we obtain through extensive…

Strongly Correlated Electrons · Physics 2019-12-11 M. E. Villalba , F. A. Gómez Albarracín , H. D. Rosales , D. C. Cabra

By employing magnetization and small angle neutron scattering (SANS) measurements, we have investigated the behavior of the skyrmion lattice (SKL) and the helical order in MnSi0.992Ga0.008. Our results indicate that the order of the SKL is…

Materials Science · Physics 2019-01-30 Chetan Dhital , Lisa DeBeer-Schmitt , David. P. Young , John DiTusa

We theoretically and experimentally study the stability of the unconventional fractional antiferromagnetic skyrmion lattice (AF-SkL) in Mn$_2$S$_4$ spinel under magnetic fields applied along the $[$1-10$]$ crystal direction. By performing…

Strongly Correlated Electrons · Physics 2023-11-22 H. D. Rosales , F. A. Gómez Albarracín , K. Guratinder , V. Tsurkan , L. Prodan , E. Ressouche , O. Zaharko

We elucidate magnetic effects in the skyrmion system to probe into the dense nuclear matter. We find a deformed $\pi^0$ dipole structure of a baryon induced by a magnetic field. We then extend our scope to stacked Skyrme crystal layers to…

High Energy Physics - Phenomenology · Physics 2022-03-07 Shi Chen , Kenji Fukushima , Zebin Qiu

We study a frustrated antiferromagnetic Heisenberg model on a triangular lattice with the Dzyaloshinskii-Moriya interaction (DMI) in the presence of an external magnetic field and a single-ion anisotropy. Phase diagrams in the…

Statistical Mechanics · Physics 2021-12-14 M. Mohylna , M. Žukovič

We present a detailed investigation of single-crystal samples of the magnetic compound Gd$_{2}$AlSi$_{3}$, which crystallizes in the $\alpha$-ThSi$_2$ type tetragonal structure. We report the temperature and magnetic field dependence of the…

Surfaces -- by breaking bulk symmetries, introducing roughness, or hosting defects -- can significantly influence magnetic order in magnetic materials. Determining their effect on the complex nanometer-scale phases present in certain…

Multipolar Kondo systems offer unprecedented opportunities for designing astonishing quantum phases and functionalities beyond spin-only descriptions. A model material platform of this kind is the cubic heavy-fermion system…

Strongly Correlated Electrons · Physics 2023-08-29 Takachika Isomae , Akito Sakai , Mingxuan Fu , Takanori Taniguchi , Masashi Takigawa , Satoru Nakatsuji

Anisotropic magnetoresistance is the change tendency of resistance of a material on the mutual orientation of the electric current and the external magnetic field. Here, we report experimental observations in the Dirac semimetal Cd3As2 of…

Mesoscale and Nanoscale Physics · Physics 2018-05-23 Hui Li , Huanwen Wang , Hongtao He , Jiannong Wang , Shun-Qing Shen

We present a detailed study of the phase diagram surrounding the skyrmion lattice (SkL) phase of Cu2OSe2O3 using high-precision magnetic ac susceptibility measurements. An extensive investigation of transition dynamics around the SkL phase…

Strongly Correlated Electrons · Physics 2015-06-23 I. Levatić , V. Šurija , H. Berger , I. Živković

We report three distinct regions within the A-phase in Fe-doped MnSi, based on the evolution of magnetoresistance and the Hall effect as a function of orientation of applied field. Fe impurities as pinning centers and crystalline anisotropy…

Strongly Correlated Electrons · Physics 2018-01-03 Peter E. Siegfried , Alexander C. Bornstein , Andrew C. Treglia , Thomas Wolf , Minhyea Lee

Rare-earth (RE) compounds have been of enormous interest in condensed matter physics as a platform for the exploration of interesting physical phenomena. Here, we report the successful single crystal growth of HoB$_{2}$, which exhibits a…

Strongly Correlated Electrons · Physics 2025-07-24 Takafumi D. Yamamoto , Hiroyuki Takeya , Kensei Terashima , Akiko T. Saito , Yoshihiko Takano