English
Related papers

Related papers: Anomalous magneto-optical Kerr hysteresis loops in…

200 papers

The connection between hysteresis and thermal relaxation in magnetic materials is studied from both the experimental and the theoretical viewpoint. Hysteresis and viscosity effects are measured in Finemet-type nanocrystalline materials…

Materials Science · Physics 2009-10-31 Vittorio Basso , Cinzia Beatrice , Martino LoBue , Paola Tiberto , Giorgio Bertotti

The low-temperature magnetic phase diagram of the multiferroic system FeTe$_2$O$_5$Br down to 300 mK and up to 9 T is presented. Short-range magnetic correlations within the crystal layers start to develop already at $\sim$50 K, i.e., far…

Strongly Correlated Electrons · Physics 2015-05-19 M. Pregelj , A. Zorko , O. Zaharko , Z. Kutnjak , M. Jagodič , Z. Jagličić , H. Berger , M. de Souza , C. Balz , M. Lang , D. Arčon

Manganese phosphide MnP has been investigated for decades because of its rich magnetic phase diagram. It is well known that the MnP exhibits the ferromagnetic phase transition at $\Tc=292$ K and the helical magnetic phase below $\TN=47$ K…

Strongly Correlated Electrons · Physics 2014-03-17 T Yamazaki , Y Tabata , T Waki , H Nakamura , M Matsuura , N Aso

We report the detailed analysis of temperature dependent neutron diffraction pattern of the Cr$_2$CoAl inverse Heusler alloy and unveil the magnetic structure up to the phase transition as well as its fully compensated ferrimagnetic nature.…

Strongly Correlated Electrons · Physics 2023-03-22 Guru Dutt Gupt , Yousef Kareri , James Hester , Clemens Ulrich , R. S. Dhaka

Mechanisms of the recently demonstrated ex-situ thermal control of the indirect exchange coupling in magnetic multilayer are discussed for different designs of the spacer layer. Temperature-induced changes in the hysteresis of magnetization…

Mesoscale and Nanoscale Physics · Physics 2018-09-26 D. M. Polishchuk , Yu. O. Tykhonenko-Polishchuk , V. Yu. Borynskyi , A. F. Kravets , A. I. Tovstolytkin , V. Korenivski

We perform a magneto-optical study of a two-dimensional electron systems (2DES) in the regime of the Stoner ferromagnetic instability for even quantum Hall filling factors on Mg$_x$Zn$_{1-x}$O/ZnO heterostructures. Under conditions of…

Mesoscale and Nanoscale Physics · Physics 2017-12-06 A. B. Van'kov , B. D. Kaysin , I. V. Kukushkin

The polar magneto-optical Kerr effect (MOKE) for low-symmetric ferromagnetic crystals is investigated theoretically based on first-principle calculations of optical conductivities and a transfer matrix approach for the electrodynamics part…

Other Condensed Matter · Physics 2009-11-11 Helmut Rathgen , Mikhail I. Katsnelson , Olle Eriksson , Gertrud Zwicknagl

In the quest for two-dimensional conducting materials with high ferromagnetic ordering temperature the new family of the layered Fe$_{n}$GeTe$_{2}$ compounds, especially the near-room-temperature ferromagnet Fe$_{4}$GeTe$_{2}$, receives a…

Two-dimensional (2D) massive Dirac electrons possess a finite Berry curvature, with Chern number $\pm 1/2$, that entails both a quantized dc Hall response and a subgap full-quarter Kerr rotation. The observation of these effects in 2D…

Mesoscale and Nanoscale Physics · Physics 2020-04-13 G. Catarina , N. M. R. Peres , J. Fernández-Rossier

Altermagnetism is a novel magnetic phase combining characteristics of both antiferromagnetism and ferromagnetic ordering. Despite growing theoretical interest in altermagnetic materials, reports of experimentally verified high Neel…

We present measurements of the electrical resistivity, $\rho$, in epitaxial Cr films of different thicknesses grown on MgO (100) substrates, as a function of temperature, $T$. The $\rho(T)$ curves display hysteretic behavior in certain…

Materials Science · Physics 2012-12-07 E. Osquiguil , E. E. Kaul , L. Tosi , C. A. Balseiro

The layered transition metal dichalcogenide compounds 1T-TaS2 and 4H-TaS2 are well known for their exotic properties, which include charge density wave, superconductivity, Mott transition, etc., and lately quantum spin liquid. Here, we…

Bulk specimens of the hetaerolite solid solution Zn$_x$Mn$_{3-x}$O$_4$, with $x$ = 0, 0.25, 0.5, 0.75, and 1 have been prepared as homogeneous, phase-pure polycrystalline samples as ascertained by neutron diffraction measurements. Samples…

Using a spin-polarized full-potential linear muffin-tin orbital method we present calculations of the nonlinear magneto-optical Kerr effect for thin bcc Fe films within a slab geometry. Film layer dependent contributions to the Kerr…

Condensed Matter · Physics 2009-10-28 U. Pustogowa , W. Hubner , K. H. Bennemann

We present results on structural and magnetic properties of highly crystalline alpha-Fe2O3 nanoparticles of average size ~200 nm, synthesized from a novel sol-gel method using metal alkoxide precursor. These particles are multi-domain,…

Materials Science · Physics 2013-02-27 G. F. Goya , M. Veith , R. Rapalavicuite , H. Shen , S. Mathur

In this study, I have investigated the magnetic and critical properties of manganese pyrochlore fluoride NaSrMn$_{2}$F$_{7}$, which exhibits a glass transition at T$_\text{f}$$=$2.5 (K) due to charge disorder. A DFT+$U$+SOC framework is…

Strongly Correlated Electrons · Physics 2023-05-09 Mohammad Amirabbasi

We report $^{7}$Li pulsed NMR measurements in polycrystalline and single crystal samples of the quasi one-dimensional S=1 antiferromagnet LiVGe$_2$O$_6$, whose AF transition temperature is $T_{\text{N}}\simeq 24.5$ K. The field ($B_0$) and…

The magnetic field is one of the most fundamental control parameters in materials science. A pulsed magnetic-field apparatus can generate high magnetic fields that are inaccessible by conventional DC-field magnets. One important issue is…

Strongly Correlated Electrons · Physics 2025-11-27 Atsutoshi Ikeda , Sota Nakamura , Soichiro Yamane , Kosuke Noda , Akihiko Ikeda , Shingo Yonezawa

We present a thorough magnetization and magneto-transport study of the diluted Fe-intercalated CrTe2 family member, Fe1/5CrTe2, a van der Waals ferromagnet. Fe1/5CrTe2 shows an elevated Curie transition temperature of 182 K in comparison to…

Strongly Correlated Electrons · Physics 2026-04-07 M. Lamba , P. Saha , K. Yadav , N. Kamboj , S. Patnaik

We report $^{77}$Se-nuclear magnetic resonance (NMR) results down to sufficiently low temperatures under magnetic fields parallel to both the $ab$-plane and the c-axis in a paramagnetic/superconducting (PM/SC) phase of…