K. Mehlawat

activity

20142024

most citedTopological electronic structure and intrinsic magnetization in MnBi

_{4}

_{7}

: a Bi

_{2}

_{3}

-derivative with a periodic Mn sublattice

131 citations · 477 across the 19 of their papers we have counts for

collaborators

19 papers

cond-mat.str-el2024

Dominant Kitaev Interaction and Field-induced Quantum Disordered Phase in the Cobaltate Na $_{2}$ Co $_{2}$ TeO $_{6}$

Xu-Guang Zhou, Han Li, Chaebin Kim +11

The identification of quantum spin liquid phases in Kitaev candidate materials remains a major experimental challenge. Since most Kitaev candidates develop antiferromagnetic (AFM)…

cond-mat.str-el2021★ 22 cited

Low-energy excitations and magnetic anisotropy of the layered van der Waals antiferromagnet Ni $_{2}$ P $_{2}$ S $_{6}$

K. Mehlawat, A. Alfonsov, S. Selter +4

The quasi-two-dimensional antiferromagnet Ni $_{2}$ P $_{2}$ S $_{6}$ belongs to the family of magnetic van der Waals compounds that provides a rich material base for the realization of funda…

cond-mat.str-el2021★ 26 cited

Magnetic field tuning of the spin dynamics in the magnetic topological insulators (MnBi $_{2}$ Te $_{4}$ )(Bi $_{2}$ Te $_{3}$ ) $_{n}$

A. Alfonsov, K. Mehlawat, A. Zeugner +3

We report a high frequency/high magnetic field electron spin resonance (HF-ESR) spectroscopy study in the sub-THz frequency domain of the two representatives of the family of magne…

cond-mat.str-el2021★ 27 cited

Strongly anisotropic spin dynamics in magnetic topological insulators

A. Alfonsov, J. I. Facio, K. Mehlawat +8

The recent discovery of magnetic topological insulators has opened new avenues to explore exotic states of matter that can emerge from the interplay between topological electronic…

cond-mat.mtrl-sci2020★ 39 cited

Electron spin resonance and ferromagnetic resonance spectroscopy in the high-field phase of the van der Waals magnet CrCl $_{3}$

J. Zeisner, K. Mehlawat, A. Alfonsov +5

We report a comprehensive high-field/high-frequency electron spin resonance (ESR) study on single crystals of the van der Waals magnet CrCl $_{3}$ . This material, although being known…

cond-mat.str-el2019★ 2 cited

Quantum Spin Liquid in a depleted triangular lattice Iridate K $_{x}$ Ir $_{y}$ O $_{2}$

Kavita Mehlawat, Yogesh Singh

We report discovery of a new iridate family K $_{x}$ Ir $_{y}$ O $_{2}$ with depleted triangular lattice planes made up of edge sharing IrO $_{6}$ octahedra separated by K planes. Such a materia…

cond-mat.str-el2019★ 6 cited

Chemical tuning between triangular and honeycomb structures in a 5 $d$ spin-orbit Mott insulator

R. D. Johnson, I. Broeders, K. Mehlawat +4

We report structural studies of the spin-orbit Mott insulator family K $_{x}$ Ir $_{y}$ O $_{2}$ , with triangular layers of edge-sharing IrO $_{6}$ octahedra bonded by potassium ions. The potass…

cond-mat.mtrl-sci2019★ 131 cited

Topological electronic structure and intrinsic magnetization in MnBi $_{4}$ Te $_{7}$ : a Bi $_{2}$ Te $_{3}$ -derivative with a periodic Mn sublattice

Raphael C. Vidal, Alexander Zeugner, Jorge I. Facio +23

Combinations of non-trivial band topology and long-range magnetic order hold promise for realizations of novel spintronic phenomena, such as the quantum anomalous Hall effect and t…

cond-mat.str-el2019★ 31 cited

Spin-glass state and reversed magnetic anisotropy induced by Cr doping in the Kitaev magnet $α$ -RuCl $_{3}$

G. Bastien, M. Roslova, M. H. Haghighi +7

Magnetic properties of the substitution series Ru $_{1 - x}$ Cr $_{x}$ Cl $_{3}$ were investigated to determine the evolution from the anisotropic Kitaev magnet $α$ -RuCl $_{3}$ with $J_{\rm eff}…

cond-mat.str-el2018★ 25 cited

Chemical- and hydrostatic-pressure effects on the Kitaev honeycomb material Na $_{2}$ IrO $_{3}$

G. Simutis, N. Barbero, K. Rolfs +10

The low-temperature magnetic properties of \tcr{polycrystalline} Na $_{2}$ IrO $_{3}$ , a candidate material for the realization of a quantum spin-liquid state, were investigated by means…

cond-mat.str-el2018★ 41 cited

Pressure-driven collapse of the relativistic electronic ground state in a honeycomb iridate

J. P. Clancy, H. Gretarsson, J. A. Sears +16

The electronic ground state in many iridate materials is described by a complex wave-function in which spin and orbital angular momenta are entangled due to relativistic spin-orbit…

cond-mat.mtrl-sci2018★ 4 cited

Dynamic Surface Modification due to Effusion of Na in Na $_{2}$ IrO $_{3}$

Aastha Vasdev, Lalit Yadav, Suman Kamboj +3

The honeycomb lattice iridate Na $_{2}$ IrO $_{3}$ shows frustrated magnetism and can potentially display Kitaev-like exchange interactions. Recently, it was shown that the electronic pro…

cond-mat.str-el2017★ 3 cited

Density wave like transport anomalies in surface doped Na $_{2}$ IrO $_{3}$

Kavita Mehlawat, Yogesh Singh

We report that the surface conductivity of Na $_{2}$ IrO $_{3}$ crystal is extremely tunable by high energy Ar plasma etching and can be tuned from insulating to metallic with increasin…

cond-mat.str-el2017★ 57 cited

Heat capacity evidence for proximity to the Kitaev QSL in A $_{2}$ IrO $_{3}$ ( $A =$ Na, Li)

K. Mehlawat, A. Thamizhavel, Yogesh Singh

The honeycomb lattice iridates $A_{2}$ IrO $_{3}$ ( $A =$ Na, Li) are candidates for realization of the Kitaev-Heisenberg model although their proximity to Kitaev's quantum Spin-Liquid (Q…

cond-mat.str-el2016★ 5 cited

First order density wave like transitions in surface doped Na $_{2}$ IrO $_{3}$

Kavita Mehlawat, Yogesh Singh

We demonstrate that the surface of the honeycomb lattice iridate Na $_{2}$ IrO $_{3}$ is extremely tunable by plasma etching. We have succeeded in turning the surface of Na $_{2}$ IrO $_{3}$ met…

cond-mat.str-el2016★ 10 cited

First-order magneto-structural transition in single crystals of the honeycomb lattice Ruthenate Li $_{2}$ RuO $_{3}$

Kavita Mehlawat, Yogesh Singh

Li $_{2}$ RuO $_{3}$ is known to crystallize in either $C 2/ m$ or $P 2_{1} / m$ structures at room temperature. We report the first single crystal growth of Li $_{2}$ RuO $_{3}$ and Na substituted cry…

cond-mat.str-el2015★ 20 cited

Fragile magnetic order in the honeycomb lattice Iridate Na $_{2}$ IrO $_{3}$ revealed by magnetic impurity doping

Kavita Mehlawat, Yogesh Singh

We report the structure, magnetic, and thermal property measurements on single crystalline and polycrystalline samples of Ru substituted honeycomb lattice iridate Na $_{2}$ Ir $_{x}$ Ru$_{…

cond-mat.mtrl-sci2015★ 1 cited

Direct Evidence for Dominant Bond-directional Interactions in a Honeycomb Lattice Iridate Na2IrO3

Sae Hwan Chun, Jong-Woo Kim, Jungho Kim +15

Heisenberg interactions are ubiquitous in magnetic materials and have been prevailing in modeling and designing quantum magnets. Bond-directional interactions offer a novel alterna…

cond-mat.str-el2014★ 27 cited

Raman Signatures of Strong Kitaev Exchange Correlations in (Na $_{1 - x}$ Li $_{x}$ ) $_{2}$ IrO $_{3}$ : Experiments and Theory

Satyendra Nath Gupta, P. V. Sriluckshmy, Kavita Mehlawat +7

Inelastic light scattering studies on single crystals of (Na $_{1 - x}$ Li $_{x}$ ) $_{2}$ IrO $_{3}$ ( $x = 0, 0.05$ and $0.15$ ) show a polarization independent broad band at $\sim$ ~2750 cm$^{-1…

Dominant Kitaev Interaction and Field-induced Quantum Disordered Phase in the Cobaltate Na2​Co2​TeO6​

Low-energy excitations and magnetic anisotropy of the layered van der Waals antiferromagnet Ni2​P2​S6​

Magnetic field tuning of the spin dynamics in the magnetic topological insulators (MnBi2​Te4​)(Bi2​Te3​)n​

Strongly anisotropic spin dynamics in magnetic topological insulators

Electron spin resonance and ferromagnetic resonance spectroscopy in the high-field phase of the van der Waals magnet CrCl3​

Quantum Spin Liquid in a depleted triangular lattice Iridate Kx​Iry​O2​

Chemical tuning between triangular and honeycomb structures in a 5d spin-orbit Mott insulator

Topological electronic structure and intrinsic magnetization in MnBi4​Te7​: a Bi2​Te3​-derivative with a periodic Mn sublattice

Spin-glass state and reversed magnetic anisotropy induced by Cr doping in the Kitaev magnet α-RuCl3​

Chemical- and hydrostatic-pressure effects on the Kitaev honeycomb material Na2​IrO3​

Pressure-driven collapse of the relativistic electronic ground state in a honeycomb iridate

Dynamic Surface Modification due to Effusion of Na in Na2​IrO3​

Density wave like transport anomalies in surface doped Na2​IrO3​

Heat capacity evidence for proximity to the Kitaev QSL in A2​IrO3​ (A= Na, Li)

First order density wave like transitions in surface doped Na2​IrO3​

First-order magneto-structural transition in single crystals of the honeycomb lattice Ruthenate Li2​RuO3​

Fragile magnetic order in the honeycomb lattice Iridate Na2​IrO3​ revealed by magnetic impurity doping

Direct Evidence for Dominant Bond-directional Interactions in a Honeycomb Lattice Iridate Na2IrO3

Raman Signatures of Strong Kitaev Exchange Correlations in (Na1−x​Lix​)2​IrO3​ : Experiments and Theory

Dominant Kitaev Interaction and Field-induced Quantum Disordered Phase in the Cobaltate Na $_{2}$ Co $_{2}$ TeO $_{6}$

Low-energy excitations and magnetic anisotropy of the layered van der Waals antiferromagnet Ni $_{2}$ P $_{2}$ S $_{6}$

Magnetic field tuning of the spin dynamics in the magnetic topological insulators (MnBi $_{2}$ Te $_{4}$ )(Bi $_{2}$ Te $_{3}$ ) $_{n}$

Electron spin resonance and ferromagnetic resonance spectroscopy in the high-field phase of the van der Waals magnet CrCl $_{3}$

Quantum Spin Liquid in a depleted triangular lattice Iridate K $_{x}$ Ir $_{y}$ O $_{2}$

Chemical tuning between triangular and honeycomb structures in a 5 $d$ spin-orbit Mott insulator

Topological electronic structure and intrinsic magnetization in MnBi $_{4}$ Te $_{7}$ : a Bi $_{2}$ Te $_{3}$ -derivative with a periodic Mn sublattice

Spin-glass state and reversed magnetic anisotropy induced by Cr doping in the Kitaev magnet $α$ -RuCl $_{3}$

Chemical- and hydrostatic-pressure effects on the Kitaev honeycomb material Na $_{2}$ IrO $_{3}$

Dynamic Surface Modification due to Effusion of Na in Na $_{2}$ IrO $_{3}$

Density wave like transport anomalies in surface doped Na $_{2}$ IrO $_{3}$

Heat capacity evidence for proximity to the Kitaev QSL in A $_{2}$ IrO $_{3}$ ( $A =$ Na, Li)

First order density wave like transitions in surface doped Na $_{2}$ IrO $_{3}$

First-order magneto-structural transition in single crystals of the honeycomb lattice Ruthenate Li $_{2}$ RuO $_{3}$

Fragile magnetic order in the honeycomb lattice Iridate Na $_{2}$ IrO $_{3}$ revealed by magnetic impurity doping

Raman Signatures of Strong Kitaev Exchange Correlations in (Na $_{1 - x}$ Li $_{x}$ ) $_{2}$ IrO $_{3}$ : Experiments and Theory