997 citations · 2.3k across the 29 of their papers we have counts for
29 papers
Impurity-induced moment freezing in NaFeRuO
Alon Hendler Avidor, Brenden R. Ortiz, Paul M. Sarte +2
We report the impact of magnetic impurity substitution on the quantum disordered magnetic ground state of NaRuO. Local moments are introduced into the frustrated triang…
Room-temperature Magnetic Thermal Switching by Suppressing Phonon-Magnon Scattering
Fanghao Zhang, Lokanath Patra, Yubi Chen +7
Thermal switching materials, whose thermal conductivity can be controlled externally, show great potential in contemporary thermal management. Manipulating thermal transport proper…
Pressure tuning of intrinsic and extrinsic sources to the anomalous Hall effect in CrGeTe
Gili Scharf, Daniel Guterding, Bar Hen +7
The integrated Berry curvature is a geometric property that has dramatic implications for material properties. This study investigates the integrated Berry curvature and other cont…
Revisiting spin ice physics in the ferromagnetic Ising pyrochlore PrSnO
Brenden R. Ortiz, Paul M. Sarte, Ganesh Pokharel +12
Pyrochlore materials are characterized by their hallmark network of corner-sharing rare-earth tetrahedra, which can produce a wide array of complex magnetic ground states. Ferromag…
Spin-orbital correlations from complex orbital order in MgVO
H. Lane, P. M. Sarte, K. Guratinder +12
MgVO is a spinel based on magnetic V ions which host both spin () and orbital () moments. Owing to the underlying pyrochlore coordination of the…
Orbital character of the spin-reorientation transition in TbMnSn
S. X. M. Riberolles, Tyler J. Slade, R. L. Dally +12
Ferromagnetic (FM) order in a two-dimensional kagome layer is predicted to generate a topological Chern insulator without an applied magnetic field. The Chern gap is largest when s…
YbVSb and EuVSb, vanadium-based kagome metals with Yb and Eu zig-zag chains
Brenden R. Ortiz, Ganesh Pokharel, Malia Gundayao +14
Here we present YbVSb and EuVSb, two new compounds exhibiting slightly distorted vanadium-based kagome nets interleaved with zig-zag chains of divalent Yb an…
Complete miscibility amongst AVSb kagome superconductors: design of mixed A-site AVSb (A: K, Rb, Cs) alloys
Brenden R. Ortiz, Andrea N. Capa Salinas, Miles J. Knudtson +3
In this work we explore the chemical-property phase diagram of the AVSb family through A-site alloying. We demonstrate full miscibility of the alkali-site, highlighting tha…
Defect control in the Heisenberg-Kitaev candidate material NaRuO
Brenden R. Ortiz, Paul M. Sarte, Alon H. Avidor +1
The combination of geometric frustration, extended hopping, spin-orbit coupling, and a disordered magnetic ground state make NaRuO an attractive Heisenberg-Kitaev candidate m…
Traversing the pyrochlore stability diagram; microwave-assisted synthesis and discovery of mixed B-site LnInSbO family
Brenden R. Ortiz, Paul M. Sarte, Ganesh Pokharel +3
The lanthanide pyrochlore oxides LnBO are one of the most intensely studied classes of materials within condensed matter physics, firmly centered as one of the pillars…
Spin-orbit excitons and electronic configuration of the insulator SrIrOF
Zach Porter, Paul M. Sarte, Thorben Petersen +3
Here we report on the low-energy excitations within the paramagnetic spin-orbit insulator SrIrOF studied via resonant inelastic X-ray scattering, \textit{ab initio}…
Study of the electronic properties of topological kagome metals YVSn and GdVSn
Ganesh Pokharel, Samuel M. L. Teicher, Brenden R. Ortiz +6
The synthesis and characterization of vanadium-based kagome metals YVSn and GdVSn are presented. X-ray diffraction, magnetization, magnetotransport, and heat capaci…
Fermi surface mapping and the nature of charge density wave order in the kagome superconductor CsVSb
Brenden R. Ortiz, Samuel M. L. Teicher, Linus Kautzsch +6
The recently discovered family of AVSb (A: K, Rb Cs) kagome metals possess a unique combination of nontrivial band topology, superconducting ground states, and signatures o…
Absence of moment fragmentation in the mixed -site pyrochlore NdGaSbO
S. J. Gomez, P. M. Sarte, M. Zelensky +14
Nd-based pyrochlore oxides of the form NdO have garnered a significant amount of interest owing to the moment fragmentation physics observed in NdZrO$_…
Superconductivity in the kagome metal KVSb
Brenden R. Ortiz, Paul M. Sarte, Eric Kenney +4
Here we report the observation of bulk superconductivity in single crystals of the two-dimensional kagome metal KVSb. Magnetic susceptibility, resistivity, and heat capacit…
Van Vleck excitons in CaRuO
P. M. Sarte, C. Stock, B. R. Ortiz +2
A framework is presented for modeling and understanding magnetic excitations in localized, intermediate coupling magnets where the interplay between spin-orbit coupling, magnetic e…
CsVSb: a topological kagome metal with a superconducting ground state
Brenden R. Ortiz, Samuel M. L. Teicher, Yong Hu +11
Recently discovered alongside its sister compounds KVSb and RbVSb, CsVSb crystallizes with an ideal kagome network of vanadium and antimonene layers separat…
Spin excitations in the frustrated triangular lattice antiferromagnet NaYbO
Mitchell Bordelon, Chunxiao Liu, Lorenzo Posthuma +6
Here we present a neutron scattering-based study of magnetic excitations and magnetic order in NaYbO under the application of an external magnetic field. The crystal electric f…
Magnetic Fluctuations and the Spin-Orbit Interaction in Mott Insulating CoO
P. M. Sarte, S. D. Wilson, J. P. Attfield +1
Motivated by the presence of an unquenched orbital angular momentum in CoO, a team at Chalk River, including a recently hired research officer Roger Cowley, performed the first ine…
Spin-Orbit Excitons in CoO
P. M. Sarte, M. Songvilay, E. Pachoud +10
CoO has an odd number of electrons in its unit cell, and therefore is expected to be metallic. Yet, CoO is strongly insulating owing to significant electronic correlations, thus cl…
Coexistence of metallic and nonmetallic properties in the pyrochlore LuRhO
Alannah M. Hallas, Arzoo Z. Sharma, Cole Mauws +9
Transition metal oxides of the and block have recently become the targets of materials discovery, largely due to their strong spin-orbit coupling that can generate exotic…
Relaxing Kondo screened Kramers-doublets in CeRhSi
J. Pásztorová, A. Howell, M. Songvilay +10
CeRhSi is a superconductor under pressure coexisting with a weakly antiferromagnetic phase characterized by a Bragg peak at =( 0.2, 0, 0.5) (N. Aso et al.…
Ordered magnetism in the intrinsically decorated = -CoVO
P. M. Sarte, A. A. Arévalo-López, M. Songvilay +11
The antiferromagnetic mixed valence ternary oxide -CoVO displays disorder on the Co site that is inherent to the space group. The zero field structural…
Disentangling orbital and spin exchange interactions for Co on a rocksalt lattice
P. M. Sarte, R. A. Cowley, E. E. Rodriguez +14
Neutron spectroscopy was applied to study the magnetic interactions of orbitally degenerate Co on a host MgO rocksalt lattice where no long range spin or orbital order exist…