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Related papers: Exchange coupling inversion in a high-spin organic…

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Motivated by recent synthetic and theoretical progress we consider magnetism in crystals of multi-nuclear organometallic complexes. We calculate the Heisenberg symmetric exchange and the Dzyaloshinskii-Moriya antisymmetric exchange. We show…

Strongly Correlated Electrons · Physics 2017-08-04 B. J. Powell , J. Merino , A. L. Khosla , A. C. Jacko

Spontaneous emission of quantum emitters can be modified by engineering their optical environment. This allows a resonant nanoantenna to significantly modify the radiative properties of a quantum emitter. In this article, we go beyond the…

The magnetic coupling between single Co atoms adsorbed on a copper surface is determined by probing the Kondo resonance using low-temperature scanning tunneling spectroscopy. The Kondo resonance, which is due to magnetic correlation effects…

Strongly Correlated Electrons · Physics 2007-05-23 P. Wahl , P. Simon , L. Diekhoener , V. S. Stepanyuk , P. Bruno , M. A. Schneider , K. Kern

The exchange coupling underlies ferroic magnetic coupling and is thus the key element that governs statics and dynamics of magnetic systems. This fundamental interaction comes in two flavors - symmetric and antisymmetric coupling. While…

We identify the mechanism of energy dissipation relevant to spin-sensitive nanomechanics including the recently introduced magnetic exchange force microscopy, where oscillating magnetic tips approach surface atomic spins. The tip-surface…

Materials Science · Physics 2010-10-26 Franco Pellegrini , Giuseppe E. Santoro , Erio Tosatti

The quantum mechanical screening of a spin via conduction electrons depends sensitively on the environment seen by the magnetic impurity. A high degree of responsiveness can be obtained with metal complexes, as the embedding of a metal ion…

Strongly Correlated Electrons · Physics 2018-11-29 Jens Kügel , Michael Karolak , Andreas Krönlein , David Serrate , Matthias Bode , Giorgio Sangiovanni

Hysteretic magneto-resistance of point contacts formed between non-magnetic tips and single ferromagnetic films exchange-pinned by antiferromagnetic films is investigated. The analysis of the measured current driven and field driven…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 I. K. Yanson , Yu. G. Naidyuk , O. P. Balkashin , V. V. Fisun , L. Yu. Triputen , S. Andersson , V. Korenivski , Yu. I. Yanson , H. Zabel

We demonstrate that ultracold symmetric top molecules loaded into an optical lattice can realize highly tunable and unconventional models of quantum magnetism, such as an XYZ Heisenberg spin model. We show that anisotropic dipole-dipole…

Quantum Gases · Physics 2015-03-20 M. L. Wall , K. Maeda , L. D. Carr

Spin-mechanical coupling is vital in diverse fields including spintronics, sensing and quantum transduction. Two-dimensional (2D) magnetic materials provide a unique platform for investigating spin-mechanical coupling, attributed to their…

Mesoscale and Nanoscale Physics · Physics 2024-08-07 Fan Fei , Yulu Mao , Wuzhang Fang , Wenhao Liu , Jack P. Rollins , Aswin L. N. Kondusamy , Bing Lv , Yuan Ping , Ying Wang , Jun Xiao

Interfacial exchange coupling between antiferromagnets (AFMs) and ferromagnets (FMs) crucially makes it possible to shift the FM hysteresis, known as exchange bias, and to switch AFM states. Two-dimensional magnets unlock opportunities to…

We report the control of vertical magnetization shift (VMS) and exchange bias through spin-orbit torque (SOT) in Pt/Co/Ir25Mn75/Co heterostructure device. The exchange bias accompanying with a large relative VMS of about 30 % is observed…

Applied Physics · Physics 2020-02-26 Z. P. Zhou , X. H. Liu , K. Y. Wang

We investigate the spin-stripe mechanism responsible for the peculiar nanometer modulation of the incommensurate magnetic order that emerges between the vector-chiral and the spin-density-wave phase in the frustrated zigzag spin-1/2 chain…

Strongly Correlated Electrons · Physics 2016-08-31 M. Pregelj , O. Zaharko , M. Herak , M. Gomilsek , A. Zorko , L. C. Chapon , F. Bourdarot , H. Berger , D. Arčon

In the quest to develop spintronic logic, it was discovered that magnetoelectric switching results in lower energy and shorter switching time than other mechanisms. Magnetoelectric (ME) field due to exchange bias at the interface with a…

Mesoscale and Nanoscale Physics · Physics 2017-09-22 Dmitri E. Nikonov , Sasikanth Manipatruni , Ian A. Young

In quantum magnetism, the virtual exchange of particles mediates an interaction between spins. Here, we show that an inelastic Hubbard interaction fundamentally alters the magnetism of the Hubbard model due to dissipation in spin-exchange…

Quantum Gases · Physics 2020-04-13 Masaya Nakagawa , Naoto Tsuji , Norio Kawakami , Masahito Ueda

Exchange bias effect is an important attribute in several device applications. Traditionally, it is discussed as a form of exchange anisotropy at the interface between the ferromagnetic/antiferromagnetic layers of two distinct systems. We…

Strongly Correlated Electrons · Physics 2015-05-13 Prasanna D. Kulkarni , S. Venkatesh , A. Thamizhavel , V. C. Rakhecha , S. Ramakrishnan , A. K. Grover

We theoretically study the transport properties of a supramolecular spin valve, consisting of a carbon nanotube with two attached magnetic molecules, weakly coupled to metallic contacts. The emphasis is put on analyzing the change of the…

Mesoscale and Nanoscale Physics · Physics 2019-03-19 A. Plominska , I. Weymann

Nanographenes with zigzag edges are predicted to manifest non-trivial pi-magnetism resulting from the interplay of hybridization of localized frontier states and Coulomb repulsion between valence electrons. This provides a chemically…

Dipolar interactions are ubiquitous in nature and rule the behavior of a broad range of systems spanning from energy transfer in biological systems to quantum magnetism. Here, we study magnetization-conserving dipolar induced spin-exchange…

Quantum Gases · Physics 2020-04-22 A. Patscheider , B. Zhu , L. Chomaz , D. Petter , S. Baier , A. M. Rey , F. Ferlaino , M. J. Mark

We investigate the bulk magnetic, electron paramagnetic resonance, and magneto-optical properties of {Ni4Mo12}, a magnetic molecule with antiferromagnetically coupled tetrahedral {Ni4Mo12} in a diamagnetic molybdenum matrix. The…

We present a laterally resolved X-ray magnetic dichroism study of the magnetic proximity effect in a highly ordered oxide system, i.e. NiO films on Fe3O4(110). We found that the magnetic interface shows an ultrasharp electronic, magnetic…

Materials Science · Physics 2008-01-10 I. P. Krug , F. U. Hillebrecht , H. Gomonaj , M. Haverkort , A. Tanaka , L. H. Tjeng , C. M. Schneider