67 citations · 97 across the 12 of their papers we have counts for
12 papers
Quantum magnetic properties and metal-to-insulator transition in chemically doped calcium ruthenate perovskite
Deepak K. Singh, Arthur Ernst, Vitalii Dugaev +2
Ruthenates provide comprehensive platform to study a plethora of novel properties, such as quantum magnetism, superconductivity and magnetic fluctuation mediated metal-insulator tr…
Mechanism of magnetic diode in artificial honeycomb lattice
George Yumnam, Jiasen Guo, Yiyao Chen +8
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-…
Magnetic charge's relaxation propelled electricity in two-dimensional magnetic honeycomb lattice
Yiyao Chen, George Yumnam, Jiasen Guo +4
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.…
Quantum disordered state of magnetic charges in nanoengineered honeycomb lattice
George Yumnam, Yiyao Chen, Jiasen Guo +3
A quantum magnetic state due to magnetic charges is never observed, even though they are treated as quantum mechanical variable in theoretical calculations. Here, we demonstrate th…
Local spin ice order induced planar Hall effect in Nd-Sn artificial honeycomb lattice
J. Guo, G. Yumnam, A. Dahal +3
Geometrically frustrated materials, such as spin ice or kagome lattice, are known to exhibit exotic Hall effect phenomena due to spin chirality. We explore Hall effect mechanism in…
Magnetic order and instability in newly synthesized CoSeAs marcasite
Y. Chen, G. Yumnam, A. Dahal +4
Marcasite class of compounds provide facile platform to explore novel phenomena of fundamental and technological importance, such as unconventional superconductivity or high perfor…
Polar metamaterials: A new outlook on resonance for cloaking applications
H. Nassar, Y. Y. Chen, G. L. Huang
Rotationally resonant metamaterials are leveraged to answer a longstanding question regarding the existence of transformation-invariant elastic materials and the ad-hoc possibility…
Spin correlation in trigonal EuMnAs
A. Dahal, Yiyao Chen, T. Heitmann +3
The trigonal structure of EuMnAs is an anomaly in the tetragonal 122-type pnictide family. We report detailed investigation of the underlying magnetic correlations in s…
Quantum continuum fluctuations in glassy perovskite Ca(CoRu)O
Yiyao Chen, A. Dahal, J. Rodriguez-Rivera +6
The quantum spin continuum and classical spin freezing, associated with a glassy state, represent two opposite extremes of a correlated electronic material. Here, we report the coe…
Quantum Magnetic Properties in Perovskite with Anderson Localized Artificial Spin-1/2
J. Gunasekera, A. Dahal, Y. Chen +7
Quantum magnetic properties in a geometrically frustrated lattice of spin-1/2 magnet, such as quantum spin liquid or solid and the associated spin fractionalization, are considered…
Scaling of nonlinear susceptibilities in artificial permalloy honeycomb lattice
A. Dahal, Y. Chen, B. Summers +1
Two-dimensional artificial magnetic honeycomb lattice is predicted to manifest thermodynamic phase transition to the spin solid order ground state at low temperature. Nonlinear sus…
Mott insulator-to-metal transition in yttrium-doped CaIrO3
J. Gunasekera, Y. Chen, J. W. Kremenak +2
We report on the study of insulator-to-metal transition in post-perovskite compound CaIrO3. It is discovered that a gradual chemical substitution of calcium by yttrium leads to the…