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We report the observation of ferromagnetic resonance (FMR) and the determination of the magnetocrystalline anisotropy in (100)-oriented single-crystalline thin film samples of GaMnP with x=0.042. The contributions to the magnetic anisotropy…

We examine the anisotropic properties of the exchange stiffness constant, $\mathcal{A}$, for rare-earth permanent magnet, Nd$_2$Fe$_{14}$B, by connecting analyses with two different scales of length, i.e., Monte Carlo (MC) method with an…

Materials Science · Physics 2018-08-22 Yuta Toga , Masamichi Nishino , Seiji Miyashita , Takashi Miyake , Akimasa Sakuma

When magnetic nanoparticles (MNPs) are single-domain and magnetically independent, their magnetic properties and the conditions to optimize their efficiency in magnetic hyperthermia applications are now well-understood. However, the…

Materials Science · Physics 2015-06-12 B. Mehdaoui , R. P. Tan , A. Meffre , J. Carrey , S. Lachaize , B. Chaudret , M. Respaud

Assemblies of magnetic nanoparticles exhibit interesting physical properties arising from the competition of intraparticle dynamics and interparticle interactions. In ordered arrays of magnetic nanoparticles magnetostatic interparticle…

Materials Science · Physics 2008-10-24 D. Kechrakos , K. N. Trohidou

We propose a short overview of a few selected issues of magnetism in reduced dimensions, which are the most relevant to set the background for more specialized contributions to the present Special Issue. Magnetic anisotropy in reduced…

Other Condensed Matter · Physics 2016-08-16 Olivier Fruchart , André Thiaville

Magnetic anisotropies and magnetization reversal properties of the epitaxial Heusler compound Co$_2$Cr$_{0.6}$Fe$_{0.4}$Al (CCFA) deposited on Fe and Cr buffer layers are studied. Both samples exhibit a growth-induced fourfold anisotropy,…

Materials Science · Physics 2009-11-11 J. Hamrle , S. Blomeier , O. Gaier , B. Hillebrands , R. Schafer , M. Jourdan

We report the magnetic properties of magnetic nano-composite, consisting of different quantity of NiFe2O4 nanoparticles in polymer matrix. The nanoparticles exhibited a typical magnetization blocking, which is sensitive on the variation of…

Materials Science · Physics 2015-05-13 A. Poddar , R. N. Bhowmik , Amitabha De , Pintu Sen

Using dc and ac magnetometry, the pressure dependence of the magnetization of the three-dimensional antiferromagnetic coordination polymer Mn(N(CN)$_{2}$)$_{2}$ was studied up to 12 kbar and down to 8K. The magnetic transition temperature,…

Materials Science · Physics 2015-02-03 P. A. Quintero , D. Rajan , M. K. Peprah , T. V. Brinzari , R. S. Fishman , D. R. Talham , M. W. Meisel

How does magnetism behave when the physical dimension is reduced to the size of nanostructures? The multiplicity of magnetic states in these systems can be very rich, in that their properties depend on the atomic species, the cluster size,…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Samir Lounis

A flop of electric polarization from $P$$\parallel$$c$ ($P_c$) to $P$$\parallel$$a$ ($P_a$) is observed in MnTiO$_3$ as a spin flop transition is triggered by a $c$-axis magnetic field, $H_{\|c}$=7 T. The critical magnetic field $H_{\|c}$…

Strongly Correlated Electrons · Physics 2014-10-29 Songxue Chi , Feng Ye , H. D. Zhou , E. S. Choi , J. Hwang , Huibo Cao , Jaime A. Fernandez-Baca

We model the stabilization of clusters and lattices of cuboidal particles with long-ranged magnetic dipolar and short-ranged surface interactions. Two realistic systems were considered: one with magnetization orientated in the [001]…

Soft Condensed Matter · Physics 2020-09-09 Igor Stankovic , Luis Lizardi , Carlos Garcia

We have systematically investigated the magnetic properties and magnetocaloric effect (MCE) in $R$MnO$_3$ ($R$$=$Dy, Tb, Ho and Yb) single crystals. Above a critical value of applied field ($H_c$), $R$MnO$_3$ undergo a first-order…

Strongly Correlated Electrons · Physics 2011-12-23 A. Midya , S. N. Das , P. Mandal , S. Pandya , V. Ganesan

We experimentally investigate the magnetization angle dependence $M(\alpha)$ for single crystals of MnTe altermagnetic candidate. In high magnetic fields, experimental $M(\alpha)$ curves mostly reflect standard antiferromagnetic spin-flop…

Mesoscale and Nanoscale Physics · Physics 2025-07-08 N. N. Orlova , V. D. Esin , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

Engineering magnetic anisotropy in two-dimensional systems has enormous scientific and technological implications. The uniaxial anisotropy universally exhibited by two-dimensional magnets has only two stable spin directions, demanding 180…

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

Magnetic nanoparticles (MNPs) play an important role in biomedical applications including imaging modalities such as MRI and magnetic particle imaging (MPI). The latter one exploits the non-linear magnetization response of a large ensemble…

Mesoscale and Nanoscale Physics · Physics 2021-10-27 Hannes Albers , Tobias Knopp , Martin Möddel , Marija Boberg , Tobias Kluth

Nanopatterned FePt nano-dots often exhibit low coercivity and a broad switching field distribution, which could arise due to edge damage during the patterning process causing a reduction in the $L1_{0}$ ordering required for a high…

Materials Science · Physics 2014-11-19 Jung-Wei Liao , Unai Atxitia , Richard F. L. Evans , Roy W. Chantrell , Chih-Huang Lai

The deterministic Landau-Lifshitz-Gilbert equation has been used to investigate the nonlinear dynamics of magnetization and the specific loss power in magnetic nanoparticles with uniaxial anisotropy driven by a rotating magnetic field,…

Mesoscale and Nanoscale Physics · Physics 2012-12-13 I. Nandori , J. Racz

Single crystals of Nd$_2$O$_3$ were grown and characterized using neutron scattering and thermodynamic measurements. Nd$_2$O$_3$ has long-range antiferromagnetic order below $T_{\rm N}$ = 0.55 K and specific heat measurements have…

Strongly Correlated Electrons · Physics 2020-08-25 Binod K. Rai , A. D. Christianson , G. Sala , M. B. Stone , Y. Liu , A. F. May

We investigate the interaction between spherical magnetic nanoparticles which present either a single domain or a vortex structure. First the magnetic structure of a uniaxial soft sphere is revisited, and then the interaction energy is…

Materials Science · Physics 2009-03-31 V. Russier