The mixed-valence magnetic ground state of Eu ions in the high-pressure synthesised compound EuNi with the Laves phase structure (C15)

1990 ◽  
Vol 2 (19) ◽  
pp. 4507-4512 ◽  
Author(s):  
A V Tsvyashchenko ◽  
V I Krylov
Keyword(s):  
High Pressure ◽  
Ground State ◽  
Phase Structure ◽  
Mixed Valence ◽  
Laves Phase ◽  
Magnetic Ground State

Unusual behavior of the low-moment magnetic ground state ofYbRh2Si2under high pressure

2003 ◽  
Vol 67 (18) ◽  
Author(s):  
J. Plessel ◽  
M. M. Abd-Elmeguid ◽  
J. P. Sanchez ◽  
G. Knebel ◽  
C. Geibel ◽  
...  
Keyword(s):  
High Pressure ◽  
Ground State ◽  
Unusual Behavior ◽  
Magnetic Ground State

Electronic Structure and Photoemission in Plutonium Chalcogenides

2008 ◽  
Vol 1104 ◽  
Author(s):  
Alexander Shick ◽  
Ladislav Havela ◽  
Thomas Gouder
Keyword(s):  
Experimental Data ◽  
Electronic Structure ◽  
Ground State ◽  
Mixed Valence ◽  
Mean Field ◽  
Photoelectron Spectra ◽  
Magnetic Ground State ◽  
Good Agreement

AbstractThe electronic structure of Pu chalcogenides is investigated making use of static around-mean-field LDA+U and dynamical LDA+HIA (Hubbard-I) methods. The LDA+U calculations provide correct non-magnetic ground state for PuX (X = S, Se, Te) with 5f-manifold non-integer filling (∼5.6(PuS)-5.7(PuTe)). This is an indication of a mixed valence ground state which is a combination of f5 and f6 multiplets. The photoelectron spectra are calculated in good agreement with experimental data. The 5f-manifold three-peaks feature near EF is well reproduced by LDA+HIA, and follows from mixed valence character of the ground state.

Nature of Magnetism in the HfCo2 Laves Phase

2005 ◽  
Vol 494 ◽  
pp. 73-78 ◽  
Author(s):  
J. Belošević-Čavor ◽  
N. Novaković ◽  
Bozidar Cekić ◽  
V. Koteski
Keyword(s):  
Magnetic Properties ◽  
Intermetallic Compounds ◽  
Ground State ◽  
Phase Structure ◽  
Magnetic Interaction ◽  
Laves Phase ◽  
Type Structure ◽  
Spin Polarized ◽  
Structure Calculations ◽  
The Ideal

Despite the fact that the magnetic properties of the intermetallic compounds with C15- type Laves phase structure have so far been studied intensively, the nature of magnetism in some of them is still a matter of controversy. In order to establish and understand the magnetism in the HfCo2 Laves phase with C15 (MgCu2-type) structure, calculations using FP-LAPW WIEN 97 program package for non-polarized and spin-polarized cases were made. They have shown that the spin-polarized case is more stable, i. e. the energy of its ground state is lower by about 0.15 eV. This is in collision with the measured TDPAC spectra, which show no sign of magnetic interaction, as well as with the earlier reported magnetization and susceptibility measurements, which claim that HfCo2 is Pauli paramagnet. Probable explanation for the obtained contradiction is the deviation of the real structure from the ideal one.

Magnetic ground state and exchange interactions in the Ising chain ferromagnet CoNb2O6

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
Subhash Thota ◽  
Sayandeep Ghosh ◽  
Maruthi R ◽  
Deep C. Joshi ◽  
Rohit Medwal ◽  
...  
Keyword(s):  
Ground State ◽  
Exchange Interactions ◽  
Ising Chain ◽  
Magnetic Ground State

Magnetic Ground State and Electronic Structure Calculations of PbMnO3 Using DFT

2014 ◽  
Vol 895 ◽  
pp. 420-423 ◽  
Author(s):  
Sathya Sheela Subramanian ◽  
Baskaran Natesan
Keyword(s):  
Electronic Structure ◽  
Band Structure ◽  
Fermi Level ◽  
Ground State ◽  
Density Functional ◽  
Electronic Structure Calculations ◽  
Magnetic Ground State ◽  
Electronic Band ◽  
Structure Calculations ◽  
Centrosymmetric Structure

Structural optimization, magnetic ground state and electronic structure calculations of tetragonal PbMnO3have been carried out using local density approximation (LDA) implementations of density functional theory (DFT). Structural optimizations were done on tetragonal P4mm (non-centrosymmetric) and P4/mmm (centrosymmetric) structures using experimental lattice parameters and our results indicate that P4mm is more stable than P4/mmm. In order to determine the stable magnetic ground state of PbMnO3, total energies for different magnetic configurations such as nonmagnetic (NM), ferromagnetic (FM) and antiferromagnetic (AFM) were computed for both P4mm and P4/mmm structures. The total energy results reveal that the FM non-centrosymmetric structure is found to be the most stable magnetic ground state. The electronic band structure, density of states (DOS) and the electron localization function (ELF) were calculated for the stable FM structure. ELF revealed the distorted non-centrosymmetric structure. The band structure and DOS for the majority spins of FM PbMnO3showed no band gap at the Fermi level. However, a gap opens up at the Fermi level in minority spin channel suggesting that it could be a half-metal and a potential spintronic candidate.

scholarly journals Anomalous Magnetic Ground State in anLaAlO3/SrTiO3Interface Probed by Transport through Nanowires

2014 ◽  
Vol 113 (21) ◽  
Author(s):  
A. Ron ◽  
E. Maniv ◽  
D. Graf ◽  
J.-H. Park ◽  
Y. Dagan
Keyword(s):  
Ground State ◽  
Magnetic Ground State
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