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This paper aims at reporting magnetic properties of bulk polycrystalline Bi2Sr2Ca0.8Dy0.2Cu2O8-y samples textured under a magnetic field. The microstructure of these materials is highly anisotropic and exhibits particular features needed to…

Superconductivity · Physics 2009-11-07 Ph. Vanderbemden , H. Bougrine , M. Ausloos , R. Cloots

Oblique/normal sequential deposition technique is used to create Co based unique multilayer structure [Co-oblique(4.4nm)/Co-normal (4.2 nm)]x10, where each Co-oblique layer is deposited at an oblique angle of 75deg, to induce large in-plane…

Scanning magnetometry with nitrogen-vacancy (NV) centers in diamond has emerged as a powerful microscopy for studying weak stray field patterns with nanometer resolution. Due to the internal crystal anisotropy of the spin defect, however,…

We investigate the effect of anisotropy and weak dipolar interactions on the magnetization of an assembly of nanoparticles with distributed magnetic moments, i.e., assembly of magnetic nanoparticles in the one-spin approximation, with…

Statistical Mechanics · Physics 2009-11-11 H. Kachkachi , M. Azeggagh

SQUID magnetometry and polarised neutron reflectivity measurements have been employed to characterise the magnetic properties of U/Fe, U/Co and U/Gd multilayers. The field dependence of the magnetisation was measured at 10K in magnetic…

Ground-state phase diagrams and magnetization curves of a spin-1 Heisenberg diamond cluster with two different coupling constants and uniaxial single-ion anisotropy are investigated in a presence of the external magnetic field with the help…

Strongly Correlated Electrons · Physics 2021-10-18 Katarina Karlova , Jozef Strecka , Masayuki Hagiwara

Detailed understanding of spin dynamics in magnetic nanomaterials is necessary for developing ultrafast, low-energy and high-density spintronic logic and memory. Here, we develop micromagnetic models and analytical solutions to elucidate…

Materials Science · Physics 2020-04-28 Furkan Şahbaz , Mehmet C. Onbaşlı

Structural and mechanical properties of amorphous and nanocomposite carbon are investigated using tight-binding molecular dynamics and Monte Carlo simulations. In the case of amorphous carbon, we show that the variation of sp^3 fraction as…

Materials Science · Physics 2015-06-25 Maria G. Fyta , Christos Mathioudakis , Georgios Kopidakis , Pantelis C. Kelires

Charge manipulation and fabrication of stable domain patterns in ferroelectric materials by scanning probe microscopy open up broad avenues for the development of tunable electronics. Harnessing the polarization energy and electrostatic…

Materials Science · Physics 2021-02-08 S. Kondovych , A. Gruverman , I. Luk'yanchuk

The ability to probe nanoscale heat flow in a material is often limited by lack of spatial resolution. Here, we use a diamond-nanocrystal-hosted nitrogen-vacancy centre attached to the apex of a silicon thermal tip as a local temperature…

Mesoscale and Nanoscale Physics · Physics 2015-11-24 Abdelghani Laraoui , Halley Aycock-Rizzo , Yang Gao , Xi Lu , Elisa Riedo , Carlos A. Meriles

The distributions of magnetization orientation for both Landau and diamond domain structures in nano-rectangles have been investigated by micromagnetic simulation with various exchange coefficient and anisotropy constant. Both symmetric and…

Materials Science · Physics 2011-09-27 Kaixuan Xie , Xiaopu Zhang , Weiwei Lin , Peng Zhang , Hai Sang

The magnetization of amorphous DyCo3 and TbCo3 is studied by magnetometry, anomalous Hall effect and magneto-optic Kerr effect to understand the temperature-dependent magnetic structure. A square magnetic hysteresis loop with perpendicular…

Materials Science · Physics 2023-12-21 Zexiang Hu , Ajay Jha , Katarzyna Siewierska , Ross Smith , Karsten Rode , Plamen Stamenov , J. M. D. Coey

We have investigated the effects of post growth low temperature annealing on the magnetic, electrical and structural properties of (Ga_0.94,Mn_0.06)(As_0.9,P_0.1) layers grown by molecular beam epitaxy. By controlling the annealing time we…

Novel multicaloric cooling utilizing the giant caloric response of Ni-Mn-based metamagnetic shape-memory alloys to different external stimuli such as magnetic field, uniaxial stress and hydrostatic pressure is a promising candidate for…

We study the magnetic phase diagram of an ensemble of dipolar hard spheres (DHS) with or without uniaxial anisotropy and frozen in position on a disordered structure by tempered Monte Carlo simulations. The crucial point is to consider an…

Materials Science · Physics 2023-05-10 Jean-Guillaume Malherbe , Vincent Russier , Juan-Jose Alonso

Layered magnetic transition-metal thiophosphate NiPS3 has unique two-dimensional (2D) magnetic properties and electronic behavior. The electronic band structure and corresponding magnetic state are expected to sensitive to the interlayer…

Strongly Correlated Electrons · Physics 2020-09-30 Xiaoli Ma , Yimeng Wang , Yunyu Yin , Binbin Yue , Jianhong Dai , Jianting Ji , Feng Jin , Fang Hong , Jian-Tao Wang , Qingming Zhang , Xiaohui Yu

Controlling magnetic textures at ever smaller length and time scales is of key fundamental and technological interest. Achieving nanoscale control often relies on finding an external stimulus that is able to act on that small length scales,…

In 3d-electron magnetic systems, the magnetic structures that transform each other by spin rotation have very close degenerate energies due to small spin-orbit coupling and can be easily controlled by chemical substitution and external…

Materials Science · Physics 2025-11-20 Vu Thi Ngoc Huyen , Yuki Yanagi , Michi-To Suzuki

The quasi-two-dimensional antiferromagnet Ni$_2$P$_2$S$_6$ belongs to the family of magnetic van der Waals compounds that provides a rich material base for the realization of fundamental models of quantum magnetism in low dimensions. Here,…

Strongly Correlated Electrons · Physics 2022-06-24 K. Mehlawat , A. Alfonsov , S. Selter , Y. Shemerliuk , S. Aswartham , B. Büchner , V. Kataev

We have a choice of methods for examining domains at the surface of a ferromagnet that depend on probing the stray field distribution, but these methods do not work in antiferromagnets or compensated ferrimagnets, which produce no stray…

Materials Science · Physics 2018-12-14 K. E. Siewierska , N. Teichert , R. Schäfer , J. M. D. Coey