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Related papers: Unquenched large orbital magnetic moment in NiO

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The orbital and spin moment of the Ni2+ ion in NiO has been calculated within the quasi-atomic approach. The orbital moment of 0.54 mB amounts at 0 K, in the magnetically-ordered state, to more than 20% of the total moment (2.53 mB). For…

Strongly Correlated Electrons · Physics 2007-05-23 R. J. Radwanski , Z. Ropka , R. Michalski

The orbital and spin moment of the Ni2+ ion in NiO has been calculated within the quasi-atomic approach. The orbital moment of 0.46 mu_B amounts at 0 K, in the magnetically-ordered state, to about 20% of the total moment (2.45 mu_B). For…

Strongly Correlated Electrons · Physics 2008-10-08 R. J. Radwanski , Z. Ropka

The total, orbital and spin moment of the Co2+ ion in CoO has been calculated within the quasi-atomic approach with taking into account strong correlations, crystal-field interactions and the intra-atomic spin-orbit coupling. The orbital…

Strongly Correlated Electrons · Physics 2009-11-10 R. J. Radwanski , Z. Ropka

The orbital and spin moment of the Ni2+ ion in NiO has been calculated at 0 K to be 0.54mB and 1.99 mB respectively. Such large orbital moment, more than 20% of the total moment of 2.53 mB, proves the need for the ''unquenching'' of the…

Strongly Correlated Electrons · Physics 2023-06-21 R. J. Radwanski , Z. Ropka

We have calculated magnetic properties and the electronic structure of NiO both in the paramagnetic and in magnetically-ordered state as well as zero-temperature properties and thermodynamics within the strongly-correlated crystal-field…

Strongly Correlated Electrons · Physics 2008-10-08 R. J. Radwanski , Z. Ropka

The orbital and spin moment of the Co2+ ion in CoO has been calculated within the quasi-atomic approach with taking into account the intra-atomic spin-orbit coupling. The orbital moment of 1.38 \mu_{B} amounts at 0 K, in the…

Strongly Correlated Electrons · Physics 2007-05-23 R. J. Radwanski , Z. Ropka

The orbital and spin moment of the Co2+ ion in CoO has been calculated within the quasi-atomic approach with taking into account the intra-atomic spin-orbit coupling and crystal field interactions. The orbital moment of 1.38 m_B amounts at…

Strongly Correlated Electrons · Physics 2007-05-23 R. J. Radwanski , Z. Ropka

Magnetic moment of the Fe2+ ion in FeO, FeS and FeBr2 has been calculated within the quantum atomistic solid-state theory to substantially exceed a value of 4 muB in the magnetically-ordered state at 0 K. In all compounds the large orbital…

Strongly Correlated Electrons · Physics 2007-05-23 R. J. Radwanski , Z. Ropka

We claim that any approach neglecting the spin-orbit coupling and the orbital magnetism is not physically adequate for 3d oxides, including NiO, and that in reaching "excellent agreement" in a Phys. Rev. Lett. 93, 126406 (2004) paper too…

Strongly Correlated Electrons · Physics 2008-10-08 R. J. Radwanski , Z. Ropka

Magnetic moment of the Fe2+ ion in FeBr2 has been calculated to be 4.32 mB in the magnetically-ordered state at 0 K. It is composed from the spin moment of 3.52 mB and the orbital moment of +0.80 mB. These calculations show that for the…

Strongly Correlated Electrons · Physics 2007-05-23 Z. Ropka , R. Michalski , R. J. Radwanski

The size dependent electronic structure and separate spin and orbital magnetic moments of free Co$_n^+$ ($n = 4\;\textrm{-}\;9$) cluster ions have been investigated by x-ray absorption and x-ray magnetic circular dichroism spectroscopy in a…

Atomic and Molecular Clusters · Physics 2019-10-30 V Zamudio-Bayer , K Hirsch , A Langenberg , A Ławicki , A Terasaki , B von Issendorff , J T Lau

By this Comment we would like to point out that the authors of Ref. 1 have ignored the orbital magnetism that makes the theory irrelevant to the real systems like NiO.It causes that the calculated result for the magnetic moment of NiO…

Strongly Correlated Electrons · Physics 2007-05-23 R. J. Radwanski , Z. Ropka

The recent proposal and observation of spin inertia, and the consequent high-frequency spin nutation mode, have raised key questions for our understanding of magnetization dynamics, especially considering its high relevance for magnetic…

Materials Science · Physics 2026-04-01 Tarek Moussa , Darpa Narayan Basu , Ritwik Mondal , Akashdeep Kamra

The double perovskite \bnoo with heptavalent Os ($d^1$) is observed to remain in the ideal cubic structure ({\it i.e.} without orbital ordering) despite single occupation of the $t_{2g}$ orbitals, even in the ferromagnetically ordered phase…

Strongly Correlated Electrons · Physics 2007-10-12 K. -W. Lee , W. E. Pickett

Recent experiments on isolated Co clusters have shown huge orbital magnetic moments in comparison with their bulk and surface counterparts. These clusters hence provide the unique possibility to study the evolution of the orbital magnetic…

In experiments and applications usually the spin magnetic moment of magnons is considered. In this Paper we identify an additional degree of freedom of magnons: an \emph{orbital} magnetic moment brought about by spin-orbit coupling.Our…

Strongly Correlated Electrons · Physics 2020-09-16 Robin R. Neumann , Alexander Mook , Jürgen Henk , Ingrid Mertig

Spin and orbital magnetic moments of cationic iron, cobalt, and nickel clusters have been determined from x-ray magnetic circular dichroism spectroscopy. In the size regime of $n = 10 - 15$ atoms, these clusters show strong ferromagnetism…

Atomic and Molecular Clusters · Physics 2014-12-01 A. Langenberg , K. Hirsch , A. Lawicki , V. Zamudio-Bayer , M. Niemeyer , P. Chmiela , B. Langbehn , A. Terasaki , B. v. Issendorff , J. T. Lau

In the last decade, it has been realized that the orbital angular momentum of partons inside the nucleon plays a major role. It contributes significantly to nucleon properties and is at the origin of many asymmetries observed in spin…

High Energy Physics - Phenomenology · Physics 2014-06-27 Cédric Lorcé

Using the fully-relativistic screened Korringa-Kohn-Rostoker method I study the orbital magnetism in the half-metallic Heusler alloys. Orbital moments are almost completely quenched and they are negligible with respect to the spin moments.…

Materials Science · Physics 2009-11-10 I. Galanakis

Nanoscale Fe3O4 epitaxial thin film has been synthesized on MgO/GaAs(100) spintronic heterostructure, and studied with X-ray magnetic circular dichroism (XMCD). We have observed a total magnetic moment of (3.32 +- 0.1) uB/f.u., retaining…

Materials Science · Physics 2015-03-30 W. Q. Liu , Y. B. Xu , P. K. J. Wong , N. J. Maltby , S. P. Li , X. F. Wang , J. Du , B. You , J. Wu , P. Bencok , R. Zhang
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