Optical Detection of Magnetic Resonance (ODMR) Studies of the Electronic Structure of Complex Defects in GaP

1987 ◽  
Vol 104 ◽  
Author(s):  
W. M. Chen ◽  
M. Godlewski ◽  
B. Monemar ◽  
H. P. Gislason
Keyword(s):  
Magnetic Properties ◽  
Electronic Structure ◽  
Magnetic Resonance ◽  
Optical Detection ◽  
Symmetry Structure

ABSTRACTOptical detection of magnetic resonance (ODMR) is applied to studies of neutral (“isoelectronic”) complex defects in GaP, via monitoring recombination of the excited bound exciton (BE) state associated with these defects. With examples of isoelectronic complex defects in GaP associated with C, Cu, Li and the PGa -antisite, it is shown how the ODMR data reveal the magnetic properties of both electrons and holes bound at such defects. The procedures to conclude on defect symmetry, structure and identity are also elucidated.

Electronic Structure of Two Sulphur-Related Bound Excitions in Silicon Studied by Optical Detection of Magnetic Resonance

1989 ◽  
Vol 163 ◽  
Author(s):  
W.M. Chen ◽  
A. Henry ◽  
E. Janzén ◽  
B. Monemar ◽  
M.L.W. Thewalt
Keyword(s):  
Electronic Structure ◽  
Magnetic Resonance ◽  
Optical Detection ◽  
Magnetic Interaction ◽  
Complex Model ◽  
Critical Test ◽  
Weak Anisotropy ◽  
Single Defect ◽  
Spin Triplet

AbstractWe report an investigation on the electronic structure of two bound exciton (BE) systems from a complex defect in S-doped Si, by optical detection of magnetic resonance (ODMR). A spin-triplet (S=1) is identified to be the lowest electronic state of the BE's, which gives rise to deep photoluminescence (PL) emissions when recombining. A weak anisotropy of the magnetic interaction of the BE’s (not possible to resolve in Zeeman data) is revealed, which leads directly to the determination of the symmetry for the excited state of the defect. A S-related complex model is suggested as the identity of the defect. A critical test of two possible metastable configurations of the constituents of a single defect is undertaken.

scholarly journals NMR for Single Ion Magnets

2021 ◽  
Vol 7 (7) ◽  
pp. 96
Author(s):  
Lucia Gigli ◽  
Silvia Di Grande ◽  
Enrico Ravera ◽  
Giacomo Parigi ◽  
Claudio Luchinat
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Properties ◽  
Electronic Structure ◽  
Quantum Computing ◽  
Magnetic Resonance ◽  
Structural Information ◽  
Paramagnetic Nmr ◽  
Recent Advances ◽  
Ideal Tool ◽  
Structure Of Matter

Nuclear Magnetic Resonance is particularly sensitive to the electronic structure of matter and is thus a powerful tool to characterize in-depth the magnetic properties of a system. NMR is indeed increasingly recognized as an ideal tool to add precious structural information for the development of Single Ion Magnets, small complexes that are recently gaining much popularity due to their quantum computing and spintronics applications. In this review, we recall the theoretical principles of paramagnetic NMR, with particular attention to lanthanoids, and we give an overview of the recent advances in this field.

Biaxial strain, electric field and interlayer distance-tailored electronic structure and magnetic properties of two-dimensional g-C3N4/Li-adsorbed Cr2Ge2Te6 van der Waals heterostructures

2021 ◽  
Vol 23 (10) ◽  
pp. 6171-6181
Author(s):  
Yaoqi Gao ◽  
Baozeng Zhou ◽  
Xiaocha Wang
Keyword(s):  
Magnetic Properties ◽  
Electronic Structure ◽  
Electric Field ◽  
Van Der Waals ◽  
Interlayer Distance ◽  
Two Dimensional ◽  
Biaxial Strain ◽  
Van Der Waals Heterostructures

It is found that the biaxial strain, electric field and interlayer distance can effectively modulate the electronic structure and magnetic properties of two-dimensional van der Waals heterostructures.

Magnetic Properties of Embedded Rh Clusters in Ni Matrix

1995 ◽  
Vol 384 ◽  
Author(s):  
Zhi-Qiang Li ◽  
Yuichi Hashi ◽  
Jing-Zhi Yu ◽  
Kaoru Ohno ◽  
Yoshiyuki Kawazoe
Keyword(s):  
Magnetic Properties ◽  
Electronic Structure ◽  
First Principles ◽  
Density Functional ◽  
Local Density ◽  
Magnetic Moments ◽  
Functional Formalism ◽  
Rhodium Clusters ◽  
Spin Polarized ◽  
Local Density Functional

ABSTRACTThe electronic structure and magnetic properties of rhodium clusters with sizes of 1 - 43 atoms embedded in the nickel host are studied by the first-principles spin-polarized calculations within the local density functional formalism. Single Rh atom in Ni matrix is found to have magnetic moment of 0.45μB. Rh13 and Rhl 9 clusters in Ni matrix have lower magnetic moments compared with the free ones. The most interesting finding is tha.t Rh43 cluster, which is bulk-like nonmagnetic in vacuum, becomes ferromagnetic when embedded in the nickel host.

Electronic structure and magnetic properties of ordered Fe1−xNix and Fe1−x Cox alloys

2005 ◽  
Vol 367 (1-4) ◽  
pp. 61-71 ◽  
Author(s):  
Y. Yang ◽  
C. Jing ◽  
J.G. Yang ◽  
S.X. Cao ◽  
J.C. Zhang
Keyword(s):  
Magnetic Properties ◽  
Electronic Structure
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