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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…

介观与纳米尺度物理 · 物理学 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…

介观与纳米尺度物理 · 物理学 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…

强关联电子 · 物理学 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…

强关联电子 · 物理学 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…

材料科学 · 物理学 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…

强关联电子 · 物理学 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…

材料科学 · 物理学 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…

强关联电子 · 物理学 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…

强关联电子 · 物理学 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…

材料科学 · 物理学 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…

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…

高能物理 - 唯象学 · 物理学 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…

统计力学 · 物理学 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…

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…

介观与纳米尺度物理 · 物理学 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…

强关联电子 · 物理学 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…

强关联电子 · 物理学 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…

强关联电子 · 物理学 2025-07-24 Takafumi D. Yamamoto , Hiroyuki Takeya , Kensei Terashima , Akiko T. Saito , Yoshihiko Takano