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Digitale Medien

Octaisopropylchromocen: Das erste Chromocen mit kontinuierlichem low spin/high spin-ÜbergangProfessor Cornelius G. Kreiter zum 60. Geburtstag gewidmet (1997)

Sitzmann, Helmut ; Schär, Marion ; Dormann, Elmar ; [weitere]

Weinheim : Wiley-Blackwell

Zeitschrift für anorganische Chemie 623 (1997), S. 1850-1852

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ISSN: 0044-2313

Schlagwort(e): Octaisopropylchromocene ; Magnetism ; Spin Transition ; Metallocene ; Chemistry ; Inorganic Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: Octaisopropylchromocene: The First Chromocene with Gradual low spin/high spin-TransitionOctaisopropylchromocene (1) exists in a low spin state at very low temperatures and undergoes a gradual spin transition on warming up. At 300 K a high spin state with four unpaired electrons has been found for solid 1 by investigation of its magnetic properties.

Zusätzliches Material: 1 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/zaac.19976231203

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Two-dimensional Fe-based half-metals with vanishing net magnetization (2011)

Masao Nakao

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2011-06-09

Beschreibung: Author(s): Masao Nakao We discuss quasi-two-dimensional (2D) half-metallic (HM) antiferromagnets (AFMs), or fully compensated half-metallic ferrimagnets, that have no spontaneous magnetization, yet have 100% spin polarization of their conduction electrons. Using a full-potential augmented plane-wave method within density ... [Phys. Rev. B 83, 214404] Published Wed Jun 08, 2011

Schlagwort(e): Magnetism

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Thema: Physik

Publiziert von American Physical Society (APS)

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Theoretical study of the role of the tip in enhancing the sensitivity of differential conductance tunneling spectroscopy on magnetic surfaces (2011)

Krisztián Palotás, Werner A. Hofer, and László Szunyogh

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2011-06-11

Beschreibung: Author(s): Krisztián Palotás, Werner A. Hofer, and László Szunyogh Based on a simple model for spin-polarized scanning tunneling spectroscopy (SP-STS), we study how tip magnetization and electronic structure affects the differential conductance ( dI / dV ) tunneling spectrum of an Fe(001) surface. We take into account energy dependence of the vacuum decay of electron s... [Phys. Rev. B 83, 214410] Published Fri Jun 10, 2011

Schlagwort(e): Magnetism

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Thema: Physik

Publiziert von American Physical Society (APS)

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Energetic stability and magnetic coupling in (Cr_{1-x}Fe_{x})_{2}O_{3}: Evidence for a ferrimagnetic ilmenite-type superlattice from first principles (2011)

Hasan Sadat Nabi and Rossitza Pentcheva

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2011-06-17

Beschreibung: Author(s): Hasan Sadat Nabi and Rossitza Pentcheva Based on density functional theory (DFT) calculations with a Hubbard U -term, we explore the possibility to design an artificial ferrimagnet FeCrO 3 of ilmenite type out of the two antiferromagnets α - Fe 2 O 3 and α - Cr 2 O 3 . By varying the concentration of Fe in α -Cr 2 O 3 , we provide a phase diagram of the re... [Phys. Rev. B 83, 214424] Published Thu Jun 16, 2011

Schlagwort(e): Magnetism

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Long-range magnetic ordering in Na_{2}IrO_{3} (2011)

X. Liu, T. Berlijn, W.-G. Yin, W. Ku, A. Tsvelik, Young-June Kim, H. Gretarsson, Yogesh Singh, P. Gegenwart, and J. P. Hill

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2011-06-17

Beschreibung: Author(s): X. Liu, T. Berlijn, W.-G. Yin, W. Ku, A. Tsvelik, Young-June Kim, H. Gretarsson, Yogesh Singh, P. Gegenwart, and J. P. Hill We report a combined experimental and theoretical investigation of the magnetic structure of the honeycomb-lattice magnet Na 2 IrO 3 , a candidate for a realization of a gapless spin liquid. Using resonant x-ray magnetic scattering at the Ir L 3 edge, we find three-dimensional long-range antiferromagneti... [Phys. Rev. B 83, 220403] Published Thu Jun 16, 2011

Schlagwort(e): Magnetism

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Spin-wave damping in ferromagnetic stripes with inhomogeneous magnetization (2011)

Hoa T. Nguyen, A. Akbari-Sharbaf, and M. G. Cottam

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2011-06-17

Beschreibung: Author(s): Hoa T. Nguyen, A. Akbari-Sharbaf, and M. G. Cottam A theory is presented for the interactions between the dipole-exchange spin waves in ferromagnetic nanowires with a stripe geometry. A Hamiltonian-based approach is used in order to extend earlier results for the linear (or noninteracting) spin waves to include the leading nonlinear processes due to... [Phys. Rev. B 83, 214423] Published Thu Jun 16, 2011

Schlagwort(e): Magnetism

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Composition-tuned smeared phase transitions (2011)

Fawaz Hrahsheh, David Nozadze, and Thomas Vojta

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2011-06-18

Beschreibung: Author(s): Fawaz Hrahsheh, David Nozadze, and Thomas Vojta Phase transitions in random systems are smeared if individual spatial regions can order independently of the bulk system. In this paper, we study such smeared phase transitions (both classical and quantum) in substitutional alloys A 1- x B x that can be tuned from an ordered phase at composition x =0 to ... [Phys. Rev. B 83, 224402] Published Fri Jun 17, 2011

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Entanglement entropy of the two-dimensional Heisenberg antiferromagnet (2011)

H. Francis Song, Nicolas Laflorencie, Stephan Rachel, and Karyn Le Hur

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2011-06-22

Beschreibung: Author(s): H. Francis Song, Nicolas Laflorencie, Stephan Rachel, and Karyn Le Hur We compute the von Neumann and generalized Rényi entanglement entropies in the ground-state of the spin- 1/2 antiferromagnetic Heisenberg model on the square lattice using the modified spin-wave theory for finite lattices. The addition of a staggered magnetic field to regularize the zero modes associ... [Phys. Rev. B 83, 224410] Published Tue Jun 21, 2011

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Switching dynamics of a magnetostrictive single-domain nanomagnet subjected to stress (2011)

Kuntal Roy, Supriyo Bandyopadhyay, and Jayasimha Atulasimha

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2011-06-23

Beschreibung: Author(s): Kuntal Roy, Supriyo Bandyopadhyay, and Jayasimha Atulasimha The temporal evolution of the magnetization vector of a single-domain magnetostrictive nanomagnet, subjected to in-plane stress, is studied by solving the Landau-Lifshitz-Gilbert equation. The stress is ramped up linearly in time, and the switching delay, which is the time it takes for the magnetiza... [Phys. Rev. B 83, 224412] Published Wed Jun 22, 2011

Schlagwort(e): Magnetism

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Exchange interaction between magnetic adatoms on surfaces of noble metals (2011)

E. Simon, B. Újfalussy, B. Lazarovits, A. Szilva, L. Szunyogh, and G. M. Stocks

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2011-06-24

Beschreibung: Author(s): E. Simon, B. Újfalussy, B. Lazarovits, A. Szilva, L. Szunyogh, and G. M. Stocks We present first-principles calculations of the exchange interactions between magnetic impurities deposited on (001), (110), and (111) surfaces of Cu and Au and analyze them, in particular, in the asymptotic regime. For the (110) and the (111) surfaces, we demonstrate that the interaction shows an o... [Phys. Rev. B 83, 224416] Published Thu Jun 23, 2011

Schlagwort(e): Magnetism

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