Magnetic freezing and spin frustration in the triangular lattice magnetsGdI2Hx(0≤x<1)

2008 ◽  
Vol 77 (10) ◽  
Author(s):  
Mikhail Ryazanov ◽  
Arndt Simon ◽  
Reinhard K. Kremer
Keyword(s):  
Triangular Lattice ◽  
Spin Frustration

Real space observation of spin frustration in Cr on a triangular lattice

2010 ◽  
Vol 82 (1) ◽  
Author(s):  
M. Waśniowska ◽  
S. Schröder ◽  
P. Ferriani ◽  
S. Heinze
Keyword(s):  
Triangular Lattice ◽  
Real Space ◽  
Spin Frustration

scholarly journals Development of short and long-range magnetic order in the double perovskite based frustrated triangular lattice antiferromagnet Ba$$_{2}$$MnTeO$$_{6}$$

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
J. Khatua ◽  
T. Arh ◽  
Shashi B. Mishra ◽  
H. Luetkens ◽  
A. Zorko ◽  
...  
Keyword(s):  
Triangular Lattice ◽  
Degrees Of Freedom ◽  
Spin Dynamics ◽  
Muon Spin ◽  
Magnetic Ordering ◽  
Double Exchange ◽  
Double Perovskite ◽  
Magnetic Interactions ◽  
Spin Frustration ◽  
Ordered State

AbstractFrustrated magnets based on oxide double perovskites offer a viable ground wherein competing magnetic interactions, macroscopic ground state degeneracy and complex interplay between emergent degrees of freedom can lead to correlated quantum phenomena with exotic excitations highly relevant for potential technological applications. By local-probe muon spin relaxation ($$\mu$$ μ SR) and complementary thermodynamic measurements accompanied by first-principles calculations, we here demonstrate novel electronic structure and magnetic phases of Ba$$_{2}$$ 2 MnTeO$$_{6}$$ 6 , where Mn$$^{2+}$$ 2 + ions with S = 5/2 spins constitute a perfect triangular lattice. Magnetization results evidence the presence of strong antiferromagnetic interactions between Mn$$^{2+}$$ 2 + spins and a phase transition at $$T_{N}$$ T N = 20 K. Below $$T_{N}$$ T N , the specific heat data show antiferromagnetic magnon excitations with a gap of 1.4 K, which is due to magnetic anisotropy. $$\mu$$ μ SR reveals the presence of static internal fields in the ordered state and short-range spin correlations high above $$T_{N}$$ T N . It further unveils critical slowing-down of spin dynamics at $$T_{N}$$ T N and the persistence of spin dynamics even in the magnetically ordered state. Theoretical studies infer that Heisenberg interactions govern the inter- and intra-layer spin-frustration in this compound. Our results establish that the combined effect of a weak third-nearest-neighbour ferromagnetic inter-layer interaction (owing to double-exchange) and intra-layer interactions stabilizes a three-dimensional magnetic ordering in this frustrated magnet.

scholarly journals Spin frustration and magnetic ordering in triangular lattice antiferromagnet Ca 3 CoNb 2 O 9

2015 ◽  
Vol 24 (12) ◽  
pp. 127508
Author(s):  
Jia Dai ◽  
Ping Zhou ◽  
Peng-Shuai Wang ◽  
Fei Pang ◽  
Tim J. Munsie ◽  
...  
Keyword(s):  
Triangular Lattice ◽  
Magnetic Ordering ◽  
Spin Frustration ◽  
Triangular Lattice Antiferromagnet

A bilayer triangular lattice with crown-like Co7 spin cluster SBUs exhibiting high spin frustration

2014 ◽  
Vol 50 (62) ◽  
pp. 8558-8560 ◽  
Author(s):  
Ya-Min Li ◽  
Hui-Jie Lun ◽  
Chang-Yu Xiao ◽  
Yan-Qing Xu ◽  
Ling Wu ◽  
...  
Keyword(s):  
High Spin ◽  
Triangular Lattice ◽  
Spin Frustration ◽  
Spin Cluster

An unprecedented crown-like Co7(OH)6 spin cluster is assembled in a bilayer triangular lattice, showing high spin frustration.

scholarly journals Spin- and chirality-orderings of frustrated magnets – stacked-triangular anti-ferromagnets and spin glasses

2001 ◽  
Vol 79 (11-12) ◽  
pp. 1447-1458 ◽  
Author(s):  
H Kawamura
Keyword(s):  
Phase Transition ◽  
Magnetic Phase Transition ◽  
Triangular Lattice ◽  
Spin Glasses ◽  
Magnetic Phase ◽  
Three Dimensional ◽  
Frustrated Magnets ◽  
Spin Frustration ◽  
Spin Structures ◽  
Experimental Works

"Chirality" is a multispin quantity representing the sense or the handedness of the noncollinear spin structures induced by spin frustration. Recent studies have revealed that the chirality often plays an important role in the ordering of certain frustrated magnets. Here I take up two such examples, stacked-triangular anti-ferromagnets and spin glasses, where the inherent chiral degree of freedom affects underlying physics and might lead to novel ordering phenomena. The first topic is the criticality of the magnetic-phase transition of vector (i.e., XY or Heisenberg) anti-ferromagnets on the three-dimensional stacked-triangular lattice. The second topic is the nature of the spin-glass ordering. I will review the recent theoretical and experimental works on these topics, with particular emphasis on the important role played by the chirality. PACS Nos.: 67.70+n, 67.57Lm

1H-NMR study of Mott insulator κ -(ET)2Cu2(CN)3with isotropic triangular lattice

2004 ◽  
Vol 114 ◽  
pp. 377-378 ◽  
Author(s):  
Y. Shimizu ◽  
K. Miyagawa ◽  
K. Oda ◽  
K. Kanoda ◽  
M. Maesato ◽  
...  
Keyword(s):  
1H Nmr ◽  
Triangular Lattice ◽  
Mott Insulator ◽  
Nmr Study

Triangular lattice antiferromagnet RbFe(MoO4)2

2010 ◽  
Vol 180 (8) ◽  
pp. 880 ◽  
Author(s):  
Aleksandr I. Smirnov ◽  
L.E. Svistov ◽  
Lyudmila A. Prozorova ◽  
O.A. Petrenko ◽  
M. Hagiwara
Keyword(s):  
Triangular Lattice ◽  
Triangular Lattice Antiferromagnet

In the Quest for a Stable Triplet State in Small Polyaromatic Hydrocarbons : An In-Silico Tool for Rational Design and Prediction

2019 ◽  
Author(s):  
Madhumita Rano ◽  
Sumanta K Ghosh ◽  
Debashree Ghosh
Keyword(s):  
Triplet State ◽  
Small Molecules ◽  
In Silico ◽  
Qualitative Agreement ◽  
Rational Design ◽  
Polyaromatic Hydrocarbons ◽  
Spin Hamiltonian ◽  
Spin Frustration ◽  
Computationally Efficient ◽  
High Level

<div>Combining the roles of spin frustration and geometry of odd and even numbered rings in polyaromatic hydrocarbons (PAHs), we design small molecules that show exceedingly small singlet-triplet gaps and stable triplet ground states. Furthermore, a computationally efficient protocol with a model spin Hamiltonian is shown to be capable of qualitative agreement with respect to high level multireference calculations and therefore, can be used for fast molecular discovery and screening.</div>

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