English
Related papers

Related papers: Competing magnetic anisotropies in atomic-scale ju…

200 papers

Large perpendicular magnetic anisotropy (PMA) in transition metal thin films provides a pathway for enabling the intriguing physics of nanomagnetism and developing broad spintronics applications. After decades of searches for promising…

Materials Science · Physics 2018-06-13 Jie-Xiang Yu , Jiadong Zang

We consider the dependence magnetization vs. field at zero temperature for the spin-1/2 chains in which the intersite interactions regularly vary from site to site with a period p. In the limiting case when the smallest value of the…

Condensed Matter · Physics 2007-05-23 Oleg Derzhko

The Kitaev material $\alpha$-RuCl$_3$ is among the most prominent candidates to host a quantum spin-liquid state endowed with fractionalized excitations. Recent experimental and theoretical investigations have separately revealed the…

We present calculations of quantized conductance and magnetoresistance in nanosize point contacts between two ferromagnetic metals. When conductance is open for only one conduction electrons spin-projection, the magnitude of…

Materials Science · Physics 2009-11-07 L. R. Tagirov , B. P. Vodopyanov , B. M. Garipov

We develop a magneto-elastic (ME) coupling model for the interaction between the vortex lattice and crystal elasticity. The theory extends the Kogan-Clem's anisotropic Ginzburg-Landau (GL) model to include the elasticity effect. The…

Superconductivity · Physics 2017-06-29 Yingxu Li , Guozheng Kang , Yuanwen Gao

We investigate the structural, magnetocrystalline anisotropy, critical behaviour, and magnetocaloric effect in the layered room-temperature monoclinic ferromagnet Cr$_{1.38}$Te$_2$. The critical behavior is studied by employing various…

Electric field control of magnetic properties offers a broad and promising toolbox for enabling ultra-low power electronics. A key challenge with high technological relevance is to master the interplay between the magnetic anisotropy of a…

We report our investigation of the electronic and magnetic excitations of Sr$_3$NiIrO$_6$ by resonant inelastic x-ray scattering at the Ir L$_3$ edge. The intra-$t_{2g}$ electronic transitions are analyzed using an atomic model, including…

Strongly Correlated Electrons · Physics 2016-06-08 E. Lefrançois , A. -M. Pradipto , M. Moretti Sala , L. C. Chapon , V. Simonet , S. Picozzi , P. Lejay , S. Petit , R. Ballou

Electronic structure calculations are used to examine the magnetic properties of Fe$_2$P-based alloys and the mechanisms through which the Curie temperature and magnetocrystalline anisotropy can be optimized for specific applications. It is…

Materials Science · Physics 2017-10-18 I. A. Zhuravlev , V. P. Antropov , A. Vishina , M. van Schilfgaarde , K. D. Belashchenko

We study relaxation behaviour in the two-dimensional assembly of magnetic nanoparticles (MNPs) with aligned anisotropy axes and positional defects. The anisotropy axes orientation and disorder strength is changed by varying $\alpha$ and…

Materials Science · Physics 2023-11-15 Manish Anand

Nb and its compounds are widely used in quantum computing due to their high superconducting transition temperatures and high critical fields. Devices that combine superconducting performance and spintronic non-volatility could deliver…

We measure the transport properties of mechanically strained single crystals of BaFe$_{2}$(As$_{1-x}$P$_{x}$)$_{2}$ over a wide range of $x$. The N\'eel transition is extremely sensitive to stress and this sensitivity increases as optimal…

Superconductivity · Physics 2015-06-05 H-. H. Kuo , James G. Analytis , J. -H. Chu , R. M. Fernandes , J. Schmalian , I. R. Fisher

We consider dilute magnetic doping in the surface of a three dimensional topological insulator where a two dimensional Dirac electron gas resides. We find that exchange coupling between magnetic atoms and the Dirac electrons has a strong…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 A. S. Núñez , J. Fernández-Rossier

We report point-contact measurements of anisotropic magnetoresistance (AMR) in a single crystal of antiferromagnetic (AFM) Mott insulator Sr2IrO4. The point-contact technique is used here as a local probe of magnetotransport properties on…

Mesoscale and Nanoscale Physics · Physics 2014-12-03 Cheng Wang , Heidi Seinige , Gang Cao , Jian-Shi Zhou , John B. Goodenough , Maxim Tsoi

Electronic structure analysis is performed to study the properties of several Pb-containing 3d-intermetallics. Our study reveals that binary metastable Co3Pb and Fe3Pb intermetallic compounds exhibit very attractive intrinsic magnetic…

Materials Science · Physics 2024-08-20 Weiyi Xia , Cai-Zhuang Wang , Vladimir Antropov

We employ a kinetic-exchange tight-binding model to calculate the magnetic interaction and anisotropy energies of a pair of substitutional Mn atoms in GaAs as a function of their separation distance and direction. We find that the most…

Materials Science · Physics 2015-05-18 T. O. Strandberg , C. M. Canali , A. H. MacDonald

Highly anisotropic properties of CeIr$_3$Si$_2$ have been observed by the magnetization $M$($B$), electrical resistivity $\rho$, and specific heat measurements on a single-crystalline sample. This compound with an orthorhombic structure…

Strongly Correlated Electrons · Physics 2009-11-13 K. Shigetoh , A. Ishida , Y. Ayabe , T. Onimaru , K. Umeo , Y. Muro , K. Motoya , M. Sera , T. Takabatake

Exploring giant magnetic anisotropy in small magnetic nanostructures is of both fundamental interest and technological merit for information storage. To prevent spin flipping at room temperature due to thermal fluctuation, large magnetic…

Atomic and Molecular Clusters · Physics 2017-09-07 Xiaoqing Liang , Xue Wu , Jun Hu , Jijun Zhao , Xiao Cheng Zeng

Dimers are the smallest chemical objects that show magnetic anisotropy. We focus on 3$d$ and 4$d$ transition metal dimers that have magnetic ground states in most cases. Some of these magnetic dimers have a considerable barrier against…

Atomic and Molecular Clusters · Physics 2008-04-09 Daniel Fritsch , Klaus Koepernik , Manuel Richter , Helmut Eschrig

Conventional and spin-related thermoelectric effects in electronic transport through a nanoscopic system exhibiting magnetic anisotropy $-$with both uniaxial and transverse components$-$ are studied theoretically in the linear response…

Mesoscale and Nanoscale Physics · Physics 2015-11-13 Maciej Misiorny , Józef Barnaś