A. U. B. Wolter
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View article: Frustration-driven unconventional magnetism in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow> <mml:mi>Mn</mml:mi> </mml:mrow> <mml:mrow> <mml:mn>2</mml:mn> <mml:mo>+</mml:mo> </mml:mrow> </mml:msup> </mml:math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mo>(</mml:mo> <mml:mi>S</mml:mi> <mml:mo>=</mml:mo> <mml:mfrac> <mml:mn>5</mml:mn> <mml:mn>2</mml:mn> </mml:mfrac> <mml:mo>)</mml:mo> </mml:mrow> </mml:math> based two-dimensional triangular-lattice antiferromagnet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>Ba</mml:mi> <mml:mn>3</mml:mn> </mml:msub> <mml:msub> <mml:mi>MnTa</mml:mi> <mml:mn>2</mml:mn> </mml:msub> <mml:msub> <mml:mi mathvariant="normal">O</mml:mi> <mml:mn>9</mml:mn> </mml:msub> </mml:mrow> </mml:math>
Frustration-driven unconventional magnetism in the based two-dimensional triangular-lattice antiferromagnet Open
A triple perovskite oxide Ba$_{3}$MnTa$_{2}$O$_{9}$ has been synthesized and its magnetic properties have been investigated through dc and ac magnetization, specific heat, electron spin resonance (ESR) measurements, and density functional …
View article: Spin liquid mimicry in the hydroxide double perovskite <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>CuSn</mml:mi><mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:mi>OD</mml:mi><mml:mo>)</mml:mo></mml:mrow><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math> induced by correlated proton disorder
Spin liquid mimicry in the hydroxide double perovskite induced by correlated proton disorder Open
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 frustrated materials have been investigated. In the hydroxide do…
View article: Magnetic‐Field Tuning of the Spin Dynamics in the Quasi‐2D Van der Waals Antiferromagnet CuCrP<sub>2</sub>S<sub>6</sub>
Magnetic‐Field Tuning of the Spin Dynamics in the Quasi‐2D Van der Waals Antiferromagnet CuCrP<sub>2</sub>S<sub>6</sub> Open
The use of antiferromagnets in magnetoelectronic devices as counterparts of ferromagnets is a new, rapidly developing trend in spintronics that leverages antiferromagnetic (AFM) magnons for transmitting of spin currents. Van der Waals (vdW…
View article: Atacamite <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>Cu</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mi>Cl</mml:mi><mml:msub><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mrow><mml:mi>OH</mml:mi></mml:mrow><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math> in High Magnetic Fields: Quantum Criticality and Dimensional Reduction of a Sawtooth-Chain Compound
Atacamite in High Magnetic Fields: Quantum Criticality and Dimensional Reduction of a Sawtooth-Chain Compound Open
We report an extensive high-field study of atacamite Cu2Cl(OH)3, a material realization of quantum sawtooth chains with weak interchain couplings, in continuous and pulsed magnetic fields up to 58 T. In particular, we have mapped the entro…
View article: Material design toward a thermodynamically stable Co–Cr–Fe–Al Heusler-type phase
Material design toward a thermodynamically stable Co–Cr–Fe–Al Heusler-type phase Open
The development of new materials using band structure calculations has become increasingly popular due to their resource-efficient nature. However, experimental observations often yield unexpected results, primarily as a consequence of pec…
View article: Mn Interstitials in Layered Mn<sub>1+<i>x</i></sub>Sb<sub>2–2/3<i>x</i></sub>Te<sub>4</sub>: Structural Modification and Curie Temperature Boost
Mn Interstitials in Layered Mn<sub>1+<i>x</i></sub>Sb<sub>2–2/3<i>x</i></sub>Te<sub>4</sub>: Structural Modification and Curie Temperature Boost Open
View article: Spin Hall magnetoresistance at the altermagnetic insulator/Pt interface
Spin Hall magnetoresistance at the altermagnetic insulator/Pt interface Open
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 the spin accumulation at the interface. This phenomenon is…
View article: Synthesis, structure, magnetic and transport properties of CeFeSb<sub>3</sub>
Synthesis, structure, magnetic and transport properties of CeFeSb<sub>3</sub> Open
Metallic CeFeSb 3 exhibits complex antiferromagnetic ordering of the Ce 4f moments on a square lattice. The non-magnetic nature of covalently bonded Fe 2 dimers was confirmed by quantum chemical analysis in combination with Mößbauer spectr…
View article: Atacamite Cu$_2$Cl(OH)$_3$ in High Magnetic Fields: Quantum Criticality and Dimensional Reduction of a Sawtooth-Chain Compound
Atacamite Cu$_2$Cl(OH)$_3$ in High Magnetic Fields: Quantum Criticality and Dimensional Reduction of a Sawtooth-Chain Compound Open
We report an extensive high-field study of atacamite Cu$_2$Cl(OH)$_3$, a material realization of quantum sawtooth chains with weak interchain couplings, in continuous and pulsed magnetic fields up to 58 T. In particular, we have mapped the…
View article: Disorder-resilient transition of helical to conical ground states in M$_{1/3}$NbS$_2$, M=Cr,Mn
Disorder-resilient transition of helical to conical ground states in M$_{1/3}$NbS$_2$, M=Cr,Mn Open
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 potential technological applications. However, there is an on…
View article: Ubiquitous Order‐Disorder Transition in the Mn Antisite Sublattice of the (MnBi<sub>2</sub>Te<sub>4</sub>)(Bi<sub>2</sub>Te<sub>3</sub>)<sub><i>n</i></sub> Magnetic Topological Insulators
Ubiquitous Order‐Disorder Transition in the Mn Antisite Sublattice of the (MnBi<sub>2</sub>Te<sub>4</sub>)(Bi<sub>2</sub>Te<sub>3</sub>)<sub><i>n</i></sub> Magnetic Topological Insulators Open
Magnetic topological insulators (TIs) herald a wealth of applications in spin‐based technologies, relying on the novel quantum phenomena provided by their topological properties. Particularly promising is the (MnBi 2 Te 4 )(Bi 2 Te 3 ) n l…
View article: Structural and Magnetic Transitions Caused by Dimer Formation in the CrCl<sub>3</sub>–MoCl<sub>3</sub> Solid Solution
Structural and Magnetic Transitions Caused by Dimer Formation in the CrCl<sub>3</sub>–MoCl<sub>3</sub> Solid Solution Open
In this work, we apply the concept of solid solutions to the two 2D transition metal trihalides CrCl3 and MoCl3. While CrCl3 belongs to the magnetically active CrX3 family, the magnetism in MoCl3 is intrinsically suppressed by the formatio…
View article: Phonon thermal transport shaped by strong spin-phonon scattering in a Kitaev material Na2Co2TeO6
Phonon thermal transport shaped by strong spin-phonon scattering in a Kitaev material Na2Co2TeO6 Open
The report of a half-quantized thermal Hall effect and oscillatory structures in the magnetothermal conductivity in the Kitaev material α -RuCl 3 have sparked a strong debate on whether it is generated by Majorana fermion edge currents, sp…
View article: Ubiquitous order-disorder transition in the Mn antisite sublattice of the (MnBi$_2$Te$_4$)(Bi$_2$Te$_3$)$_n$ magnetic topological insulators
Ubiquitous order-disorder transition in the Mn antisite sublattice of the (MnBi$_2$Te$_4$)(Bi$_2$Te$_3$)$_n$ magnetic topological insulators Open
Magnetic topological insulators (TIs) herald a wealth of applications in spin-based technologies, relying on the novel quantum phenomena provided by their topological properties. Particularly promising is the (MnBi$_2$Te$_4$)(Bi$_2$Te$_3$)…
View article: Phonon thermal transport shaped by strong spin-phonon scattering in a Kitaev material Na$_2$Co$_2$TeO$_6$
Phonon thermal transport shaped by strong spin-phonon scattering in a Kitaev material Na$_2$Co$_2$TeO$_6$ Open
The recent report of a half-quantized thermal Hall effect in the Kitaev material $α$-RuCl$_3$ has sparked a strong debate on whether it is generated by Majorana fermion edge currents or whether other more conventional mechanisms involving …
View article: Synthesis and Characterization of Oxide Chloride Sr<sub>2</sub>VO<sub>3</sub>Cl, a Layered <i>S</i> = 1 Compound
Synthesis and Characterization of Oxide Chloride Sr<sub>2</sub>VO<sub>3</sub>Cl, a Layered <i>S</i> = 1 Compound Open
The mixed-anion compound with composition Sr2VO3Cl has been synthesized for the first time, using the conventional high-temperature solid-state synthesis technique in a closed silica ampule under inert conditions. Thi…
View article: Intermixing‐Driven Surface and Bulk Ferromagnetism in the Quantum Anomalous Hall Candidate MnBi<sub>6</sub>Te<sub>10</sub>
Intermixing‐Driven Surface and Bulk Ferromagnetism in the Quantum Anomalous Hall Candidate MnBi<sub>6</sub>Te<sub>10</sub> Open
The recent realizations of the quantum anomalous Hall effect (QAHE) in MnBi 2 Te 4 and MnBi 4 Te 7 benchmark the (MnBi 2 Te 4 )(Bi 2 Te 3 ) n family as a promising hotbed for further QAHE improvements. The family owes its potential to its …
View article: Intermixing-driven surface and bulk ferromagnetism in the quantum anomalous Hall candidate MnBi$_6$Te$_{10}$
Intermixing-driven surface and bulk ferromagnetism in the quantum anomalous Hall candidate MnBi$_6$Te$_{10}$ Open
The recent realizations of the quantum anomalous Hall effect (QAHE) in MnBi$_2$Te$_4$ and MnBi$_4$Te$_7$ benchmark the (MnBi$_2$Te$_4$)(Bi$_2$Te$_3$)$_n$ family as a promising hotbed for further QAHE improvements. The family owes its poten…
View article: On the Growth and Characterization of Smofe1− X Co X as Single Crystals
On the Growth and Characterization of Smofe1− X Co X as Single Crystals Open
View article: Incommensurate and multiple-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>q</mml:mi></mml:math> magnetic misfit order in the frustrated quantum spin ladder material antlerite <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">Cu</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">SO</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:mi>OH</mml:mi><mml:mo>)</mml:mo></mml:mrow><mml:mn>4</mml:mn></mml:msub></mml:math>
Incommensurate and multiple- magnetic misfit order in the frustrated quantum spin ladder material antlerite Open
In frustrated magnetic systems, the competition amongst interactions can introduce extremely high degeneracy and prevent the system from readily selecting a unique ground state. In such cases, the magnetic order is often exquisitely sensit…
View article: Dilution of the magnetic lattice in the Kitaev candidate <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>α</mml:mi><mml:mtext>−</mml:mtext><mml:msub><mml:mi>RuCl</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math> by <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mrow><mml:mi>Rh</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:math> doping
Dilution of the magnetic lattice in the Kitaev candidate by doping Open
Magnetic dilution of a well-established Kitaev candidate system is realized in the substitutional Ru1-xRhxCl3 series (x=0.02-0.6). Optimized syntheses protocols yield uniformly doped single crystals and polycrystalline powders that are iso…
View article: Dilution of the magnetic lattice in the Kitaev candidate $α$-RuCl$_3$ by Rh$^{3+}$ doping
Dilution of the magnetic lattice in the Kitaev candidate $α$-RuCl$_3$ by Rh$^{3+}$ doping Open
Magnetic dilution of a well-established Kitaev candidate system is realized in the substitutional Ru$_{1-x}$Rh$_x$Cl$_3$ series ($x = 0.02-0.6$). Optimized syntheses protocols yield uniformly-doped single crystals and polycrystalline powde…
View article: Incommensurate and multiple-$\boldsymbol{q}$ magnetic misfit order in the frustrated quantum-spin-ladder material antlerite, Cu$_3$SO$_4$(OH)$_4$
Incommensurate and multiple-$\boldsymbol{q}$ magnetic misfit order in the frustrated quantum-spin-ladder material antlerite, Cu$_3$SO$_4$(OH)$_4$ Open
In frustrated magnetic systems, the competition amongst interactions can introduce extremely high degeneracy and prevent the system from readily selecting a unique ground state. In such cases, the magnetic order is often exquisitely sensit…
View article: Combined experimental and theoretical study of hydrostatic (He-gas)\n pressure effects in $\\alpha$-RuCl$_3$
Combined experimental and theoretical study of hydrostatic (He-gas)\n pressure effects in $\\alpha$-RuCl$_3$ Open
We report a detailed experimental and theoretical study on the effect of\nhydrostatic pressure on the structural and magnetic aspects of the layered\nhoneycomb antiferromagent $\\alpha$-RuCl$_{3}$. Magnetic susceptibility\nmeasurements per…
View article: Low-energy spin excitations of the frustrated ferromagnetic $J_1$-$J_2$ chain material linarite, PbCuSO$_4$(OH)$_2$, in applied magnetic fields $\mathbf{H} \parallel b$ axis
Low-energy spin excitations of the frustrated ferromagnetic $J_1$-$J_2$ chain material linarite, PbCuSO$_4$(OH)$_2$, in applied magnetic fields $\mathbf{H} \parallel b$ axis Open
We report a study of the spin dynamics of the frustrated ferromagnetic $J_1$-$J_2$ chain compound linarite, PbCuSO$_4$(OH)$_2$, in applied magnetic fields up to field polarization. By means of an extreme-environment inelastic neutron scatt…
View article: Frustration model and spin excitations in the helimagnet FeP
Frustration model and spin excitations in the helimagnet FeP Open
The metallic compound FeP belongs to the class of materials that feature a complex noncollinear spin order driven by magnetic frustration. While its double-helix magnetic structure with a period λs ≈ 5c, where c is the …
View article: Magnetoelastic coupling anisotropy in the Kitaev material <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>α</mml:mi><mml:mtext>−</mml:mtext><mml:mi>Ru</mml:mi><mml:msub><mml:mi>Cl</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>
Magnetoelastic coupling anisotropy in the Kitaev material Open
The Kitaev material $\\alpha$-RuCl$_3$ is among the most prominent candidates\nto host a quantum spin-liquid state endowed with fractionalized excitations.\nRecent experimental and theoretical investigations have separately revealed the\ni…
View article: Material Design Towards Theory-Experiment Congruence: A Thermodynamically Stable Co-Cr-Fe-Al Heusler Phase
Material Design Towards Theory-Experiment Congruence: A Thermodynamically Stable Co-Cr-Fe-Al Heusler Phase Open
View article: Occupancy disorder in the magnetic topological insulator candidate Mn<sub>1−<i>x</i> </sub>Sb<sub>2+<i>x</i> </sub>Te<sub>4</sub>
Occupancy disorder in the magnetic topological insulator candidate Mn<sub>1−<i>x</i> </sub>Sb<sub>2+<i>x</i> </sub>Te<sub>4</sub> Open
MnSb 2 Te 4 is a candidate magnetic topological insulator exhibiting more pronounced cation intermixing than its predecessor MnBi 2 Te 4 . Investigating the cation intermixing and its possible implications on the magnetic order in MnSb 2 T…
View article: Thermal transport of the frustrated spin-chain mineral linarite: Magnetic heat transport and strong spin-phonon scattering
Thermal transport of the frustrated spin-chain mineral linarite: Magnetic heat transport and strong spin-phonon scattering Open
The mineral linarite (PbCuSO$_4$(OH)$_2$) forms a monoclinic structure where a sequence of Cu(OH)$_2$ units forms a spin-$\frac{1}{2}$ chain. Competing ferromagnetic nearest-neighbor ($J_1$) and antiferromagnetic next-nearest-neighbor inte…