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We revisit the non-collinear exchange coupling across the trilayer magnetic junction mediated by the diluted-magnetic-semiconductor thin film. By numerical approaches, we investigate the spiral angle between the ferromagnetic layers…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Chia-Hui Lin , Hsiu-Hau Lin , Tzay-Ming Hong

MnSn monolayer synthesized recently is a novel two-dimensional ferromagnetic material with a hexagonal lattice, in which three Mn atom come together to form a trimer, making it remarkably different from other magnetic two-dimensional…

Materials Science · Physics 2024-06-19 Panjun Feng , Xiaohui Zhang , Dapeng Liu , Shuo Zhang , Xun-Wang Yan , Z. Y. Xie

Nonvolatile spintronics-based devices that utilize electron spin both to store and transport information face a great challenge when scaled to nano dimensions due to loss of thermal stability and stray field induced disturbance in closely…

Mesoscale and Nanoscale Physics · Physics 2023-09-28 Kutay Akin , Hasan Piskin , Ege Selvi , Emre Demircanli , Sevval Ari , Mohammad Hassan Ramezan zadeh , Bayram Kocaman , Ozhan Ozatay

Electrical switching and readout of antiferromagnets allows to exploit the unique properties of antiferromagnetic materials in nanoscopic electronic devices. Here we report experiments on the spin-orbit torque induced electrical switching…

Materials Science · Physics 2020-03-25 Mareike Dunz , Tristan Matalla-Wagner , Markus Meinert

The interlayer spin correlations in the magnetic/non-magnetic semiconductor superlattices are reviewed. The experimental evidences of interlayer exchange coupling in different all-semiconductor structures, based on neutronographic and…

Materials Science · Physics 2007-05-23 P. Kacman , J. Blinowski , H. Kepa , T. M. Giebultowicz

The Curie temperature is one of the most fundamental physical properties of ferromagnetic materials and can be described by Weiss molecular field theory with the exchange interaction of neighboring atoms. Recently, the…

Mesoscale and Nanoscale Physics · Physics 2018-07-04 Fuyuki Ando , Kihiro T. Yamada , Tomohiro Koyama , Mio Ishibashi , Yoichi Shiota , Takahiro Moriyama , Daichi Chiba , Teruo Ono

Exchange-coupled interfaces are pivotal in exploiting two-dimensional (2D) ferromagnetism. Due to the extraordinary correlations among charge, spin, orbital and lattice degrees of freedom, layered magnetic transition metal chalcogenides…

Electronic structures, exchange interaction mechanism between magnetic ions and Curie temperature of Vanadium - doped Nitrides (AlN, GaN, and InN) are studied within KKR-LSDA-CPA. It is found that the ferromagnetic super-exchange…

Materials Science · Physics 2008-01-10 V. A. Dinh , H. Katayama-Yoshida

Spin-dependent transport at heavy metal/magnetic insulator interfaces is at the origin of many phenomena at the forefront of spintronics research. A proper quantification of the different interfacial spin conductances is crucial for many…

Few-layer CrI$_3$ is the most known example among two-dimensional (2D) ferromagnets, which have attracted growing interest in recent years. Despite considerable efforts and progress in understanding the properties of 2D magnets both from…

Strongly Correlated Electrons · Physics 2021-01-14 I. V. Kashin , V. V. Mazurenko , M. I. Katsnelson , A. N. Rudenko

This work reports on the magnetic interlayer coupling between two amorphous CoFeB layers, separated by a thin Ru spacer. We observe an antiferromagnetic coupling which oscillates as a function of the Ru thickness x, with the second…

Materials Science · Physics 2007-05-23 N. Wiese , T. Dimopoulos , M. Ruhrig , J. Wecker , H. Bruckl , G. Reiss

We present a many-body approach to the electronic and magnetic properties of the (multiband) Kondo-lattice model with ferromagnetic interband exchange. The coupling between itinerant conduction electrons and localized magnetic moments…

Strongly Correlated Electrons · Physics 2009-11-10 W. Nolting , W. Müller , C. Santos

We report the first ab-initio study of the interlayer exchange coupling in Fe/c-FeSi/Fe sandwiches and Fe/c-FeSi multilayers. We perform several structural studies, which show the stability of the CsCl arrangement seen experimentally for…

Materials Science · Physics 2007-05-23 J. M. Alonso Pruneda , R. Robles , S. Bouarab , J. Ferrer , A. Vega

Magnetic properties of Ga$_{1-x}$Mn$_x$N are studied theoretically by employing a tight binding approach to determine exchange integrals $J_{ij}$ characterizing the coupling between Mn spin pairs located at distances $R_{ij}$ up to the 16th…

Materials Science · Physics 2014-07-14 C. Simserides , J. A. Majewski , K. N. Trohidou , T. Dietl

Thermally driven transitions between ferromagnetic and paramagnetic phases are characterized by critical behavior with divergent susceptibilities, long-range correlations, and spin dynamics that can span kHz to GHz scales as the material…

The exchange coupling between Fe layers separated by BCC Cu is calculated for Fe/Cu/Fe (001) trilayers. It is shown that the coupling is basically regulated by three extrema of the bulk BCC Cu Fermi surface. The contributions from those…

Condensed Matter · Physics 2009-10-28 A. T. Costa , J. d'Albuquerque e Castro , R. B. Muniz , M. S. Ferreira , J. Mathon

We use temperature-dependent Hall measurements to identify contributions of spin Hall, magnetic proximity, and sublattice effects to the anomalous Hall signal in heavy metal/ferrimagnetic insulator heterostructures with perpendicular…

The Heusler compounds Mn$_2$TiZ (Z = Al, Ga, In, Si, Ge, Sn, P, As, Sb) are of large interest due to their potential ferrimagnetic properties and high spin polarization. Here, we present calculations of the structural and magnetic…

Materials Science · Physics 2011-01-05 Markus Meinert , Jan-Michael Schmalhorst , Günter Reiss

Ferromagnetic-paramagnetic phase transitions in classical and quantum thin films have been studied up to 50 mono-layers using effective field theory with two-site cluster approximation. Variation of the Curie temperature as a function of…

Statistical Mechanics · Physics 2014-12-24 Yusuf Yuksel , Umit Akinci

Varying the thermal boundary conductance at metal-dielectric interfaces is of great importance for highly integrated electronic structures such as electronic, thermoelectric and plasmonic devices where heat dissipation is dominated by…

Applied Physics · Physics 2020-12-08 S. M. Oommen , S. Pisana
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