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Artificial magnetic honeycomb lattices are expected to exhibit a broad and tunable range of novel magnetic phenomena that would be difficult to achieve in natural materials, such as long-range spin ice, entropy-driven magnetic…

Mesoscale and Nanoscale Physics · Physics 2018-02-20 B. Summers , L. Debeer-Schmitt , A. Dahal , A. Glavic , P. Kampschroeder , J. Gunasekera , D. K. Singh

Artificial magnetic honeycomb lattice provides a two-dimensional archetypal system to explore novel phenomena of geometrically frustrated magnets. According to theoretical reports, an artificial magnetic honeycomb lattice is expected to…

Mesoscale and Nanoscale Physics · Physics 2018-02-20 B. Summers , Y. Chen , A. Dahal , D. K. Singh

Two-dimensional artificial magnetic honeycomb lattice is at the forefront of research on unconventional magnetic materials. Among the many emergent magnetic phases that are predicted to arise as a function of temperature, the low…

Mesoscale and Nanoscale Physics · Physics 2018-02-20 A. Dahal , B. Summers , D. K. Singh

Two-dimensional artificial magnetic honeycomb lattice is predicted to manifest thermodynamic phase transition to the spin solid order ground state at low temperature. Nonlinear susceptibilities are very sensitive to thermodynamic phase…

Mesoscale and Nanoscale Physics · Physics 2018-06-27 A. Dahal , Y. Chen , B. Summers , D. K. Singh

The emergent concept of magnetic charge quasi-particle provides a new realm to study the evolution of magnetic properties in two-dimensional artificially frustrated magnets. We report on the exploration of magnetic phases due to various…

Mesoscale and Nanoscale Physics · Physics 2021-11-01 George Yumnam , Jiasen Guo , Deepak K. Singh

The crystal structure, magnetic ground state, and the temperature dependent microscopic spin-spin correlations of the frustrated honeycomb lattice antiferromagnet Na2Co2TeO6 have been investigated by powder neutron diffraction. A three…

Strongly Correlated Electrons · Physics 2017-03-29 A. K. Bera , S. M. Yusuf , Amit Kumar , C. Ritter

Topological magnetic charges, arising due to the non-vanishing magnetic flux on spin ice vertices, serve as the origin of magnetic monopoles that traverse the underlying lattice effortlessly. Unlike spin ice materials of atomic origin, the…

Strongly Correlated Electrons · Physics 2023-09-12 Jiasen Guo , Pousali Ghosh , Daniel Hill , Yiyao Chen , Laura Stingaciu , Piotr. Zolnierczuk , Carsten A. Ullrich , Deepak K. Singh

We use determinantal quantum Monte Carlo simulations and numerical linked-cluster expansions to study thermodynamic properties and short-range spin correlations of fermions in the honeycomb lattice. We find that, at half filling and finite…

Strongly Correlated Electrons · Physics 2012-11-15 Baoming Tang , Thereza Paiva , Ehsan Khatami , Marcos Rigol

Spin diode is important prerequisite to practical manifestation of spin electronics. Yet, a functioning magnetic diode at room temperature is still illusive. Here, we reveal diode-type phenomena due to magnetic charge mediated conduction in…

The temperature-magnetic-field phase diagram of the mixed honeycomb triangular lattice system K$_{2}$Mn$_{3}$(VO$_{4}$)$_{2}$CO$_{3}$ is investigated by means of magnetization, heat capacity and neutron scattering measurements. The results…

We model the dynamics of magnetization in an artificial analog of spin ice specializing to the case of a honeycomb network of connected magnetic nanowires. The inherently dissipative dynamics is mediated by the emission, propagation and…

Mesoscale and Nanoscale Physics · Physics 2012-04-16 Yichen Shen , Olga Petrova , Paula Mellado , Stephen Daunheimer , John Cumings , Oleg Tchernyshyov

Emerging new concepts, such as magnetic charge dynamics in two-dimensional magnetic material, can provide novel mechanism for spin based electrical transport at macroscopic length. In artificial spin ice of single domain elements, magnetic…

Mesoscale and Nanoscale Physics · Physics 2021-02-25 Yiyao Chen , George Yumnam , Jiasen Guo , Laura Stingaciu , Piotr Zolnierczuk , Valeria Lauter , Deepak K. Singh

Quantum magnets based on honeycomb lattices with low-coordination number offer a viable ground to realize exotic emergent quantum excitations and phenomena arising from the interplay between competing magnetic interactions, spin…

Strongly Correlated Electrons · Physics 2024-11-14 J. Khatua , M. Gomilsek , Kwang-Yong Choi , P. Khuntia

Two-dimensional high-spin bipartite honeycomb networks, where anisotropy, competing exchange interactions, and spin fluctuations interplay, provide an alternative platform to test theoretical models that distinguish between classical and…

Strongly Correlated Electrons · Physics 2026-05-05 M. Barik , Q. Faure , F. Damay , J. P. Embs , S. Petit , P. Khuntia

The complexity of the antiferromagnetic orders observed in the honeycomb iridates is a double-edged sword in the search for a quantum spin-liquid ground state: both attesting that the magnetic interactions provide many of the necessary…

Strongly Correlated Electrons · Physics 2019-02-22 K. A. Modic , B. J. Ramshaw , Nicholas P. Breznay , James G. Analytis , Ross D. McDonald , Arkady Shekhter

The microscopic spin-spin correlations in the 2D layered spin-1 honeycomb lattice compound Na2Ni2TeO6 have been investigated by neutron diffraction and inelastic neutron scattering. The honeycomb lattice of spin-1 Ni2+ ions, within the…

Strongly Correlated Electrons · Physics 2022-02-17 A. K. Bera , S. M. Yusuf , L. Keller , F. Yokaichiya , J. R. Stewart

Magnetic and thermodynamical properties of a system of spins in a honeycomb lattice, such as magnetization, magnetic susceptibility and specific heat, in a low-temperature regime are investigated by considering the effects of a Kekul\'e…

Mesoscale and Nanoscale Physics · Physics 2017-05-25 Ricardo S. Martins , Elena Konstantinova , Humberto Belich , José A. Helayël-Neto

The interplay between spin-orbit coupling, anisotropic magnetic interaction, frustration-induced quantum fluctuations and spin correlations can lead to novel quantum states with exotic excitations in rare-earth-based quantum magnets.…

Strongly Correlated Electrons · Physics 2023-08-31 J. Khatua , Q. P. Ding , M. S. Ramachandra Rao , K. Y. Choi , A. Zorko , Y. Furukawa , P. Khuntia

We present a modification of exactly solvable spin-(1/2) Kitaev model on the decorated honeycomb lattice, with a ground state of "spin metal" type. The model is diagonalized in terms of Majorana fermions; the latter form a 2D gapless state…

Strongly Correlated Electrons · Physics 2013-05-29 K. S. Tikhonov , M. V. Feigel'man

We report on band structure calculations and a microscopic model of the low-dimensional magnet beta-Cu2V2O7. Magnetic properties of this compound can be described by a spin-1/2 anisotropic honeycomb lattice model with the averaged coupling…

Strongly Correlated Electrons · Physics 2010-10-12 Alexander A. Tsirlin , Oleg Janson , Helge Rosner
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