F. Freund

activity

20142019

most citedIncommensurate Counterrotating Magnetic Order Stabilized by Kitaev Interactions in the Layered Honeycomb

α

-Li

_{2}

IrO

_{3}

183 citations · 676 across the 10 of their papers we have counts for

collaborators

10 papers

cond-mat.str-el2019★ 14 cited

Field evolution of low-energy excitations in the hyperhoneycomb magnet $β$ -Li $_{2}$ IrO $_{3}$

M. Majumder, M. Prinz-Zwick, S. Reschke +8

$^{7}$ Li nuclear magnetic resonance (NMR) and terahertz (THz) spectroscopies are used to probe magnetic excitations and their field dependence in the hyperhoneycomb Kitaev magnet $β$ …

cond-mat.str-el2019★ 21 cited

Anisotropic temperature-field phase diagram of single-crystalline $β$ -Li $_{2}$ IrO $_{3}$ : magnetization, specific heat, and $^{7}$ Li NMR study

M. Majumder, F. Freund, T. Dey +6

Detailed magnetization, specific heat, and $^{7}$ Li nuclear magnetic resonance (NMR) measurements on single crystals of the hyperhoneycomb Kitaev magnet $β$ -Li $_{2}$ IrO $_{3}$ are reporte…

cond-mat.str-el2019★ 86 cited

Fingerprints of Kitaev physics in the magnetic excitations of honeycomb iridates

A. Revelli, M. Moretti Sala, G. Monaco +11

In the quest for realizations of quantum spin liquids, the exploration of Kitaev materials - spin-orbit entangled Mott insulators with strong bond-directional exchanges - has taken…

cond-mat.str-el2019★ 16 cited

Optical signature of the pressure-induced dimerization in the honeycomb iridate $α$ -Li $_{2}$ IrO $_{3}$

V. Hermann, J. Ebad-Allah, F. Freund +4

We studied the effect of external pressure on the electrodynamic properties of $α$ -Li $_{2}$ IrO $_{3}$ single crystals in the frequency range of the phonon modes and the Ir $d$ - $d$ trans…

cond-mat.str-el2019★ 14 cited

Pressure-induced formation of rhodium zigzag chains in the honeycomb rhodate Li $_{2}$ RhO $_{3}$

V. Hermann, S. Biswas, J. Ebad-Allah +8

We use powder x-ray diffraction to study the effect of pressure on the crystal structure of the honeycomb rhodate Li $_{2}$ RhO $_{3}$ . We observe low-pressure ( $P$ $<$ $P_{c 1}$ = 6.5 GPa)…

cond-mat.str-el2018★ 68 cited

Breakdown of magnetic order in the pressurized Kitaev iridate $β$ -Li $_{2}$ IrO $_{3}$

M. Majumder, R. S. Manna, G. Simutis +14

Temperature-pressure phase diagram of the Kitaev hyperhoneycomb iridate $β$ -Li $_{2}$ IrO $_{3}$ is explored using magnetization, thermal expansion, magnetostriction, and muon spin rotati…

cond-mat.str-el2017★ 77 cited

Competition between spin-orbit coupling, magnetism, and dimerization in the honeycomb iridates: $α$ -Li $_{2}$ IrO $_{3}$ under pressure

V. Hermann, M. Altmeyer, J. Ebad-Allah +9

Single-crystal x-ray diffraction studies with synchrotron radiation on the honeycomb iridate $α$ -Li $_{2}$ IrO $_{3}$ reveal a pressure-induced structural phase transition with symmet…

cond-mat.str-el2017★ 34 cited

High-pressure versus isoelectronic doping effect on the honeycomb iridate Na $_{2}$ IrO $_{3}$

V. Hermann, J. Ebad-Allah, F. Freund +7

We study the effect of isoelectronic doping and external pressure in tuning the ground state of the honeycomb iridate Na $_{2}$ IrO $_{3}$ by combining optical spectroscopy with synchrotr…

cond-mat.str-el2016★ 183 cited

Incommensurate Counterrotating Magnetic Order Stabilized by Kitaev Interactions in the Layered Honeycomb $α$ -Li $_{2}$ IrO $_{3}$

S. C. Williams, R. D. Johnson, F. Freund +8

The layered honeycomb magnet $α$ -Li $_{2}$ IrO $_{3}$ has been theoretically proposed as a candidate to display novel magnetic behaviour associated with Kitaev interactions between spin-o…

cond-mat.str-el2014★ 163 cited

Unconventional magnetic order on the hyperhoneycomb Kitaev lattice in $β$ -Li2IrO3: full solution via magnetic resonant x-ray diffraction

A. Biffin, R. D. Johnson, Sungkyun Choi +6

The recently-synthesized iridate $β$ -Li $_{2}$ IrO $_{3}$ has been proposed as a candidate to display novel magnetic behavior stabilized by frustration effects from bond-dependent, anisot…

Field evolution of low-energy excitations in the hyperhoneycomb magnet β-Li2​IrO3​

Anisotropic temperature-field phase diagram of single-crystalline β-Li2​IrO3​: magnetization, specific heat, and 7Li NMR study

Fingerprints of Kitaev physics in the magnetic excitations of honeycomb iridates

Optical signature of the pressure-induced dimerization in the honeycomb iridate α-Li2​IrO3​

Pressure-induced formation of rhodium zigzag chains in the honeycomb rhodate Li2​RhO3​

Breakdown of magnetic order in the pressurized Kitaev iridate β-Li2​IrO3​

Competition between spin-orbit coupling, magnetism, and dimerization in the honeycomb iridates: α-Li2​IrO3​ under pressure

High-pressure versus isoelectronic doping effect on the honeycomb iridate Na2​IrO3​

Incommensurate Counterrotating Magnetic Order Stabilized by Kitaev Interactions in the Layered Honeycomb α-Li2​IrO3​

Unconventional magnetic order on the hyperhoneycomb Kitaev lattice in β-Li2IrO3: full solution via magnetic resonant x-ray diffraction