activity
20142025
most citedCsVSb: a topological kagome metal with a superconducting ground state

997 citations · 2.3k across the 29 of their papers we have counts for

collaborators

29 papers

cond-mat.str-el2025

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…

cond-mat.mtrl-sci2024★ 11 cited

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…

cond-mat.str-el2024★ 6 cited

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…

cond-mat.str-el2023★ 5 cited

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…

cond-mat.str-el2023★ 8 cited

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…

cond-mat.str-el2023★ 22 cited

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…

cond-mat.mtrl-sci2023★ 18 cited

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…

cond-mat.mtrl-sci2022★ 7 cited

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…

cond-mat.str-el2022★ 6 cited

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…

cond-mat.str-el2022★ 5 cited

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…

cond-mat.str-el2022★ 6 cited

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}…

cond-mat.str-el2021★ 118 cited

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…

cond-mat.str-el2021★ 259 cited

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…

cond-mat.str-el2021★ 15 cited

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$_…

cond-mat.supr-con2020★ 475 cited

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…

cond-mat.str-el2020★ 15 cited

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…

cond-mat.mtrl-sci2020★ 997 cited

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…

cond-mat.str-el2020★ 75 cited

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…

cond-mat.str-el2020★ 15 cited

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…

cond-mat.str-el2019★ 38 cited

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…

cond-mat.str-el2019★ 18 cited

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…

cond-mat.str-el2019★ 11 cited

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.…

cond-mat.str-el2018★ 18 cited

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…

cond-mat.str-el2018★ 25 cited

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…