Results 201 to 210 of about 39,546 (266)

Alternating Linear Heisenberg Antiferromagnet: The Exciton Limit

, 1973
A. B. Harris
openalex   +2 more sources

The Interplay of Single Ion Anisotropy and Magnetic 3 d‐4 f Interactions in VIII2LnIII2 Butterfly Complexes

ChemistryEurope, EarlyView.
The 3d–4f coupling constants and relative angles between distinct anisotropy axes in butterfly‐shaped VIII2LnIII2 (Ln=Y, Tb−Yb) metal‐organic molecular complexes are determined using combined high‐field EPR spectroscopy and magnetisation studies. The observed chemical trend sheds light on the electronic exchange mechanism and highlights the important ...
Jan Arneth, Xian‐Feng Li, Jonas Braun, Sagar Paul, Michael Schulze, Christopher E. Anson, Wolfgang Wernsdorfer, Annie K. Powell, Rüdiger Klingeler   +8 more
wiley   +1 more source

TiNiSi‐Type ALiAu (A = Ca, Sr, Ba, Eu, Yb) Compounds: Alternative Use of “Excess” Electrons

Chemistry – A European Journal, EarlyView.
Excess electrons distinguish the bonding in ALiAu (A = Yb, Ca, Eu, Sr, Ba), a new series of intermetallic compounds crystallizing in TiNiSi type. According to bonding analysis, these metallic phases are classified as aurides containing polycations with multiatomic bonding between A, Li, and Au . Abstract New TiNiSi‐type compounds ALiAu (A = Ca, Sr, Ba,
Peter Höhn, Daniel Menéndez Crespo, Matej Bobnar, Primož Koželj, Mitja Krnel, Yurii Prots, Marcus Schmidt, Frank R. Wagner, Yuri Grin   +8 more
wiley   +1 more source

Extending MIEZE spectroscopy towards thermal wavelengths

Journal of Applied Crystallography, Volume 55, Issue 6, Page 1424-1431, December 2022., 2022
A modulation of intensity with zero effort (MIEZE) setup is proposed for high‐resolution neutron spectroscopy at momentum transfers up to 3 Å−1, energy transfers up to 20 meV and an energy resolution in the microelectronvolt range using both thermal and cold neutrons.A modulation of intensity with zero effort (MIEZE) setup is proposed for high ...
Johanna K. Jochum, Christian Franz, Thomas Keller, Christian Pfleiderer   +3 more
wiley   +1 more source

The Relevance of Non‐axiality and Low‐lying Excited States for Slow Magnetic Relaxation in Pentagonal‐bipyramidal Erbium(III) Complexes Probed by High‐frequency EPR

Chemistry – A European Journal, Accepted Article.
High‐frequency/high‐field electron paramagnetic resonance studies on a series of seven‐coordinate pentagonal‐bipyramidal (PBP) erbium(III) complexes Er(DAPMBH/H2DAPS)X (H2DAPMBH = 2,6‐diacetylpyridine bis‐4‐methoxy benzoylhydrazone, H4DAPS = 2,6‐diacetylpyridine bis‐(salicylhydrazone)) demonstrate the effects of different apical ligands (X = (H2O)Cl (1)
Jan Arneth, Lena Spillecke, Changyun Koo, Tamara A. Bazhenova, Eduard B. Yagubskii, Rüdiger Klingeler   +5 more
wiley   +1 more source

Efficient data reduction for time‐of‐flight neutron scattering experiments on single crystals

Journal of Applied Crystallography, Volume 55, Issue 6, Page 1514-1527, December 2022., 2022
In neutron scattering experiments, data sets with different statistical significance are collected. A new method is presented to efficiently calculate the weights of single‐crystal time‐of‐flight measurements, and to add together the various contributions.Event‐mode data collection presents remarkable new opportunities for time‐of‐flight neutron ...
Andrei T. Savici, Martyn A. Gigg, Owen Arnold, Roman Tolchenov, Ross E. Whitfield, Steven E. Hahn, Wenduo Zhou, Igor A. Zaliznyak   +7 more
wiley   +1 more source

TheS=1/2 Heisenberg antiferromagnet on the triangular lattice: Exact results and spin-wave theory for finite cells [PDF]

, 1993
R. Deutscher, H. U. Everts
openalex   +1 more source

Oxidation‐Deformylation Cascade Catalyzed By a Mononuclear Copper Complex

Chemistry – A European Journal, EarlyView.
A bioinspired copper complex is able to catalyze two successive oxidative steps of alcohol conversion in the presence of hydrogen peroxide under mild conditions: (i) alcohol oxidation to aldehyde and (ii) aldehyde deformylation. Isotopic effects on the reaction rates indicate that hydrogen atom abstraction is rate limiting for both steps.
Yongxing Wang, Rogelio Gomez Pineiro, Rébecca Leblay, Michel Giorgi, Sylvain Bertaina, Maylis Orio, Bruno Faure, Marius Réglier, A. Jalila Simaan   +8 more
wiley   +1 more source

Preparation of pyrite concentrate powder from the Thackaringa mine for quantitative phase analysis using X‐ray diffraction

Journal of Applied Crystallography, Volume 55, Issue 6, Page 1572-1582, December 2022., 2022
A method for performing accurate quantitative phase analysis using X‐ray powder diffraction of pyrite concentrate mineral samples from the Thackaringa mine has been devised. The sample preparation optimization process is described. Grain size reduction suitable for analysis by the Rietveld method was achieved using ball milling.The quantitative phase ...
Hamish McDougall, Monica Hibberd, Andrew Tong, Suzanne Neville, Vanessa Peterson, Christophe Didier   +5 more
wiley   +1 more source