A. U. Wolter

activity

20102026

most citedField-induced quantum criticality in the Kitaev system

α

-RuCl

_{3}

196 citations · 1k across the 30 of their papers we have counts for

collaborators

30 papers

cond-mat.str-el2026★ 3 cited

Magnetic-field tuning of the spin dynamics in the quasi-2D van der Waals antiferromagnet CuCrP $_{2}$ S $_{6}$

Joyal John Abraham, Yaqian Guo, Yuliia Shemerliuk +14

The use of antiferromagnets in magnetoelectronic devices as counterparts of ferromagnets is a new, rapidly developing trend in spintronics that leverages antiferromagnetic (AFM) ma…

cond-mat.mes-hall2026

Anomalous and Topological Hall Effects in Antiferromagnetic EuSn2As2 Nanostructures

Evgeny I. Maltsev, Nicolas Pérez, Romain Giraud +8

We investigate magnetotransport in exfoliated nanostructures of the candidate magnetic 3D topological insulator $EuS n_{2} A s_{2}$ . Similar to macroscopic single crystals, t…

cond-mat.str-el2025

Physical properties of new delafossite triangular-lattice compounds TlErSe $_{2}$ and TlTmSe $_{2}$

Bastian Rubrecht, Ellen Häußler, Mirtha Pillaca +7

Delafossite compounds containing rare-earth ions have been proven to be an ideal platform to investigate frustrated magnetic ground states. Here, we discuss two triangular-lattice…

cond-mat.str-el2025

Spin Liquid Mimicry in the Hydroxide Double Perovskite CuSn(OH) $_{6}$ Induced by Correlated Proton Disorder

Anton A. Kulbakov, Ellen Häußler, Kaushick K. Parui +13

The face-centered-cubic lattice is composed of edge-sharing tetrahedra, making it a leading candidate host for strongly frustrated magnetism, but relatively few face-centered frust…

cond-mat.mes-hall2025★ 2 cited

Spin Hall magnetoresistance at the altermagnetic insulator/Pt interface

Miina Leiviskä, Reza Firouzmandi, Kyo-Hoon Ahn +22

The resistance of a heavy metal can be modulated by an adjacent magnetic material through the combined effects of the spin Hall effect, inverse spin Hall effect, and dissipation of…

cond-mat.mtrl-sci2024

Disorder-resilient transition of Helical to Conical ground states in M $_{1/3}$ NbS $_{2}$ , M=Cr,Mn

Manaswini Sahoo, Pietro Bonfà, Amelia. E. Hall +7

The discovery of chiral helical magnetism (CHM) in Cr $_{1/3}$ NbS $_{2}$ and the stabilization of a chiral soliton lattice (CSL) has attracted considerable interest in view of their po…

cond-mat.mtrl-sci2024★ 20 cited

Ubiquitous order-disorder transition in the Mn antisite sublattice of the (MnBi $_{2}$ Te $_{4}$ )(Bi $_{2}$ Te $_{3}$ ) $_{n}$ magnetic topological insulators

M. Sahoo, I. J. Onuorah, L. C. Folkers +12

Magnetic topological insulators (TIs) herald a wealth of applications in spin-based technologies, relying on the novel quantum phenomena provided by their topological properties. P…

cond-mat.supr-con2021★ 8 cited

Revisiting the phase diagram of LaFe $_{1 - x}$ Co $_{x}$ AsO on single crystals by thermodynamic methods

Francesco Scaravaggi, Sven Sauerland, Liran Wang +13

In this work we revisit the phase diagram of Co-doped LaFeAsO using single crystals and thermodynamic methods. From magnetic susceptibility studies we track the doping evolution of…

cond-mat.supr-con2020★ 4 cited

Mapping out the spin fluctuations in Co-doped LaFeAsO single crystals by NMR

Piotr Lepucki, Raphael Havemann, Adam P. Dioguardi +7

We determine the phase diagram of LaFe $_{1 - x}$ Co $_{x}$ AsO single crystals by using nuclear magnetic resonance (NMR). Up to a nominal doping of $x = 0.03$ , it follows the phase diagram…

cond-mat.str-el2019★ 12 cited

Complex magnetic properties in the mixed 4f -5d double perovskite iridates Ln2ZnIrO6 (Ln = Nd, Sm, Eu & Gd)

M. Vogl, R. Morrow, A. A. Aczel +5

In this work, we report on the synthesis and magnetic properties of a series of double perovskites Ln $_{2}$ ZnIrO $_{6}$ with Ln = Nd, Sm, Eu & Gd. These compounds present new examples o…

cond-mat.str-el2019

Disordered magnetism in the double perovskite LaCaScIrO6 with a distorted fcc lattice of Ir4+

M. Vogl, G. Bastien, R. Sarkar +9

The synthesis and characterization of the previously unknown material LaCaScIrO $_{6}$ is reported. LaCaScIrO $_{6}$ presents a new example of the rare case of a double perovskite with t…

cond-mat.str-el2017★ 196 cited

Field-induced quantum criticality in the Kitaev system $α$ -RuCl $_{3}$

A. U. B. Wolter, L. T. Corredor, L. Janssen +9

$α$ -RuCl $_{3}$ has attracted enormous attention since it has been proposed as a prime candidate to study fractionalized magnetic excitations akin to Kitaev's honeycomb-lattice spin l…

cond-mat.str-el2017★ 13 cited

Increasing stripe-type fluctuations in $A$ Fe $_{2}$ As $_{2}$ ( $A$ = K, Rb, Cs) superconductors probed by $^{75}$ As NMR spectroscopy

Z. T. Zhang, D. Dmytriieva, S. Molatta +7

We report $^{75}$ As nuclear magnetic resonance measurements on single crystals of RbFe $_{2}$ As $_{2}$ and CsFe $_{2}$ As $_{2}$ . Taking previously reported results for KFe $_{2}$ As$_{2}…

cond-mat.supr-con2016★ 8 cited

Competing effects of Mn and Y doping on the low-energy excitations and phase diagram of La $_{1 - y}$ Y $_{y}$ Fe $_{1 - x}$ Mn $_{x}$ AsO $_{0.89}$ F $_{0.11}$ iron-based superconductors

M. Moroni, S. Sanna, G. Lamura +8

Muon Spin Rotation ( $μ$ SR) and $^{19}$ F Nuclear Magnetic Resonance (NMR) measurements were performed to investigate the effect of Mn for Fe substitutions in La $_{1 - y}$ Y $_{y}$ Fe$_{1…

cond-mat.str-el2015★ 41 cited

Complex field-induced states in Linarite PbCuSO $_{4}$ (OH) $_{2}$ with a variety of high-order exotic SDW $_{p}$ states

B. Willenberg, M. Schäpers, A. U. B. Wolter +8

Low-temperature neutron diffraction and NMR studies of field-induced phases in linarite are presented for magnetic fields $H ∥ b$ axis. A two-step spin-flop transition is o…

cond-mat.supr-con2015

Enhancement of low-frequency fluctuations and superconductivity breakdown in Mn-doped La $_{1 - y}$ Y $_{y}$ FeAsO $_{0.89}$ F $_{0.11}$ superconductors

F. Hammerath, M. Moroni, L. Bossoni +9

$^{19}$ F NMR measurements in optimally electron-doped La $_{1 - y}$ Y $_{y}$ Fe $_{1 - x}$ Mn $_{x}$ AsO $_{0.89}$ F $_{0.11}$ superconductors are presented. In these materials the effect of Mn d…

cond-mat.supr-con2014★ 13 cited

Superconducting properties of K $_{1 - x}$ Na $_{x}$ Fe $_{2}$ As $_{2}$ under pressure

V. Grinenko, W. Schottenhamel, A. U. B. Wolter +18

The effect of hydrostatic pressure and partial Na substitution on the normal-state properties and the superconducting transition temperature ( $T_{c}$ ) of K $_{1 - x}$ Na $_{x}$ Fe $_{2}$ As $_{2}$ …

cond-mat.str-el2014★ 8 cited

Amorphous ferromagnetism and re-entrant magnetic glassiness in Sm $_{2}$ Mo $_{2}$ O $_{7}$ : new insights into the electronic phase diagram of pyrochlore molybdates

G. Prando, P. Carretta, A. U. B. Wolter +3

We discuss the magnetic properties of a Sm $_{2}$ Mo $_{2}$ O $_{7}$ single crystal as investigated by means of different experimental techniques. In the literature, a conventional itin…

cond-mat.supr-con2013★ 34 cited

Specific heat of Ca $_{0.32}$ Na $_{0.68}$ Fe $_{2}$ As $_{2}$ single crystals: unconventional s $_{\pm}$ multi-band superconductivity with intermediate repulsive interband coupling and sizable attractive intraband couplings

S. Johnston, M. Abdel-Hafiez, L. Harnagea +9

We report a low-temperature specific heat study of high-quality single crystals of the heavily hole doped superconductor Ca $_{0.32}$ Na $_{0.68}$ Fe $_{2}$ As $_{2}$ . This compound exhibits…

cond-mat.supr-con2013★ 185 cited

Unusual band renormalization in the simplest iron based superconductor

J. Maletz, V. B. Zabolotnyy, D. V. Evtushinsky +9

The electronic structure of the iron chalcogenide superconductor FeSe_{1-x} was investigated by high- resolution angle-resolved photoemission spectroscopy (ARPES). The results were…

cond-mat.supr-con2012★ 20 cited

Evidence for a vortex-glass transition in superconducting Ba(Fe $_{0.9}$ Co $_{0.1}$ ) $_{2}$ As $_{2}$

G. Prando, R. Giraud, S. Aswartham +6

Measurements of magneto-resistivity and magnetic susceptibility were performed on single crystals of superconducting Ba(Fe $_{0.9}$ Co $_{0.1}$ ) $_{2}$ As $_{2}$ close to the conditions…

cond-mat.supr-con2012★ 31 cited

Flux jumps and vortex pinning in Ba $_{0.65}$ Na $_{0.35}$ Fe $_{2}$ As $_{2}$ single crystals

A. K. Pramanik, S. Aswartham, A. U. B. Wolter +3

In this work we present the results of the bulk magnetization measurements in a superconducting state of single crystals of Ba $_{0.65}$ Na $_{0.35}$ Fe $_{2}$ As $_{2}$ . The isothermal magne…

cond-mat.supr-con2012★ 48 cited

Hole-doping in BaFe $_{2}$ As $_{2}$ : The case of Ba $_{1 - x}$ Na $_{x}$ Fe $_{2}$ As $_{2}$ single crystals

S. Aswartham, M. Abdel-Hafiez, D. Bombor +11

Single crystals of Ba $_{1 - x}$ Na $_{x}$ Fe $_{2}$ As $_{2}$ with $x$ = 0, 0.25, 0.35, 0.4 were grown using a self-flux high temperature solution growth technique. The superconducting and norma…

cond-mat.mtrl-sci2011★ 17 cited

Orthogonal spin arrangement as possible ground state of three - dimensional Shastry - Sutherland network in Ba3Cu3In4O12

O. S. Volkova, I. S. Maslova, R. Klingeler +4

The Ba3Cu3In4O12 stands for unique topology of the magnetic subsystem. It consists of rotated by 90\Box $^{b}$ relative to each other "paper-chain" columns made of vertex-sharing CuIO…

Magnetic-field tuning of the spin dynamics in the quasi-2D van der Waals antiferromagnet CuCrP2​S6​

Anomalous and Topological Hall Effects in Antiferromagnetic EuSn2As2 Nanostructures

Physical properties of new delafossite triangular-lattice compounds TlErSe2​ and TlTmSe2​

Spin Liquid Mimicry in the Hydroxide Double Perovskite CuSn(OH)6​ Induced by Correlated Proton Disorder

Spin Hall magnetoresistance at the altermagnetic insulator/Pt interface

Disorder-resilient transition of Helical to Conical ground states in M1/3​NbS2​, M=Cr,Mn

Ubiquitous order-disorder transition in the Mn antisite sublattice of the (MnBi2​Te4​)(Bi2​Te3​)n​ magnetic topological insulators

Revisiting the phase diagram of LaFe1−x​Cox​AsO on single crystals by thermodynamic methods

Mapping out the spin fluctuations in Co-doped LaFeAsO single crystals by NMR

Complex magnetic properties in the mixed 4f -5d double perovskite iridates Ln2ZnIrO6 (Ln = Nd, Sm, Eu & Gd)

Disordered magnetism in the double perovskite LaCaScIrO6 with a distorted fcc lattice of Ir4+

Field-induced quantum criticality in the Kitaev system α-RuCl3​

Increasing stripe-type fluctuations in AFe2​As2​ (A = K, Rb, Cs) superconductors probed by 75As NMR spectroscopy

Competing effects of Mn and Y doping on the low-energy excitations and phase diagram of La1−y​Yy​Fe1−x​Mnx​AsO0.89​F0.11​ iron-based superconductors

Complex field-induced states in Linarite PbCuSO4​(OH)2​ with a variety of high-order exotic SDWp​ states

Enhancement of low-frequency fluctuations and superconductivity breakdown in Mn-doped La1−y​Yy​FeAsO0.89​F0.11​ superconductors

Superconducting properties of K1−x​Nax​Fe2​As2​ under pressure

Amorphous ferromagnetism and re-entrant magnetic glassiness in Sm2​Mo2​O7​: new insights into the electronic phase diagram of pyrochlore molybdates

Specific heat of Ca0.32​Na0.68​Fe2​As2​ single crystals: unconventional s±​ multi-band superconductivity with intermediate repulsive interband coupling and sizable attractive intraband couplings