Observation of a surface magnetic phase transition on Cr(100)

Klebanoff, L. E.; Robey, S. W.; Liu, G.; Shirley, D. A.

doi:10.1103/physrevb.30.1048

Cited by 177 publications

(57 citation statements)

References 16 publications

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“…Both their symmetry and dispersion characteristics are in agreement with that feature found by KLEBANOFF et al [35]. Furthermore, we find the states to be spin-polarized.…”

Section: Chromium Surfaces and Chromium Monolayers On Ironsupporting

confidence: 81%

“…Furthermore, we find the states to be spin-polarized. This then suppores-the experimentally proposed arguments [35] for the Cr(100) surface ferromagnetism.…”

Section: Chromium Surfaces and Chromium Monolayers On Ironmentioning

confidence: 55%

“…Their sample, however, displayed a c(2x2) structure indicative of impurities, which may have affected their results. The (100) surface has been examined also by two angle-resolved photoemission experiments [34,35]; both find a surface state or resonance at an energy approximately 0.70 eV below the Fermi level. The measured temperature dependence of this resonance in the latter experiment is taken as evidence for a ferromagnetic surface [35].…”

Section: Chromium Surfaces and Chromium Monolayers On Ironmentioning

confidence: 99%

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Magnetic and Electronic Properties of Transition-Metal Surfaces and Overlayers

Victora¹

1986

Springer Proceedings in Physics

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“…Both their symmetry and dispersion characteristics are in agreement with that feature found by KLEBANOFF et al [35]. Furthermore, we find the states to be spin-polarized.…”

Section: Chromium Surfaces and Chromium Monolayers On Ironsupporting

confidence: 81%

“…Furthermore, we find the states to be spin-polarized. This then suppores-the experimentally proposed arguments [35] for the Cr(100) surface ferromagnetism.…”

Section: Chromium Surfaces and Chromium Monolayers On Ironmentioning

confidence: 55%

Section: Chromium Surfaces and Chromium Monolayers On Ironmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic and Electronic Properties of Transition-Metal Surfaces and Overlayers

Victora¹

1986

Springer Proceedings in Physics

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“…A very interesting case is Cr which in the bulk is an antiferromagnet with a moment of about 0.5µB. Angle resolved photoemission experiments indicate that ferromagnetism occurs at the surface [20], with a magnetic moment of about 2µB. This is in agreement with calculations which predict a surface magnetic moment of 2.49µB [19].…”

Section: Magnetic Moments At Surfaces and Interfacessupporting

confidence: 79%

Magnetism in Rare-Earth-Transition Metal Systems. Magnetization Reversal and Ultra-High Susceptibility in Sandwiched Thin Films Based on Rare-earth and Cobalt Alloys

Baczewski¹,

Givord²,

Alameda³

et al. 1993

Acta Phys. Pol. A

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This paper is composed of two parts: theoretical and experimental. The theoretical part is divided into several sections. The main characteristic properties of 3d (transition metals) and 4f (rare-earth metals) magnetism are explained in the second section. The properties of rare-earth-transition metal compounds are discussed in the third section, particularly with respect to applications. The fourth section is devoted to the rapidly growing field of magnetic thin films. Specifrc properties of ultra-thin films and multilayers are summarized. In the experimental part the original magnetic properties of sandwich films, consisting of a soft amorphous Co-Zr layer placed between two Sm-Co layers with different coercivities, are reported.

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“…Thus, the first layer of the (001) surface consists of ferromagnetically aligned atoms. Intriguingly, the surface magnetic state persists up to much larger temperatures (T surf N ∼ 750-800 K) than the bulk state, as measured in references [76,77] by angular resolved photo emission (ARPES) and reference [78] by magnetization measurements with Cr particles of different diameter. This large magnetic moment originates from the altered paramagnetic electronic structure: The surface introduces massively more states close to the Fermi energy (compare Fig.…”

Section: Electronic Structure Of the Cr(001) Surfacementioning

confidence: 99%

Realistic theory of electronic correlations in nanoscopic systems

Schüler

Barthel

Wehling

et al. 2017

Eur. Phys. J. Spec. Top.

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Abstract.Nanostructures with open shell transition metal or molecular constituents host often strong electronic correlations and are highly sensitive to atomistic material details. This tutorial review discusses method developments and applications of theoretical approaches for the realistic description of the electronic and magnetic properties of nanostructures with correlated electrons. First, the implementation of a flexible interface between density functional theory and a variant of dynamical mean field theory (DMFT) highly suitable for the simulation of complex correlated structures is explained and illustrated. On the DMFT side, this interface is largely based on recent developments of quantum Monte Carlo and exact diagonalization techniques allowing for efficient descriptions of general four fermion Coulomb interactions, reduced symmetries and spin-orbit coupling, which are explained here. With the examples of the Cr (001) surfaces, magnetic adatoms, and molecular systems it is shown how the interplay of Hubbard U and Hund's J determines charge and spin fluctuations and how these interactions drive different sorts of correlation effects in nanosystems. Non-local interactions and correlations present a particular challenge for the theory of low dimensional systems. We present our method developments addressing these two challenges, i.e., advancements of the dynamical vertex approximation and a combination of the constrained random phase approximation with continuum medium theories. We demonstrate how non-local interaction and correlation phenomena are controlled not only by dimensionality but also by coupling to the environment which is typically important for determining the physics of nanosystems.a

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Observation of a surface magnetic phase transition on Cr(100)

Cited by 177 publications

References 16 publications

Magnetic and Electronic Properties of Transition-Metal Surfaces and Overlayers

Magnetic and Electronic Properties of Transition-Metal Surfaces and Overlayers

Magnetism in Rare-Earth-Transition Metal Systems. Magnetization Reversal and Ultra-High Susceptibility in Sandwiched Thin Films Based on Rare-earth and Cobalt Alloys

Realistic theory of electronic correlations in nanoscopic systems

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