S. Bettler

activity

20172025

most citedSign-switching of dimer correlations in SrCu

_{2}

(BO

_{3}

)

_{2}

under hydrostatic pressure

35 citations · 94 across the 13 of their papers we have counts for

collaborators

13 papers

cond-mat.str-el2025

Tuning Incommensurate Charge Order in Ba $_{1 - x}$ Sr $_{x}$ Al $_{4}$ and Ba $_{1 - y}$ Eu $_{y}$ Al $_{4}$

Prathum Saraf, Eleanor M. Clements, Danila Sokratov +14

The BaAl $_{4}$ -type structure family is home to a vast landscape of interesting and exotic properties, with descendant crystal structures hosting a variety of electronic ground state…

cond-mat.str-el2024★ 2 cited

Conformally invariant charge fluctuations in a strange metal

Xuefei Guo, Jin Chen, Farzaneh Hoveyda-Marashi +11

The strange metal is a peculiar phase of matter in which the electron scattering rate, $τ^{- 1} \sim k_{B} T /ℏ$ , which determines the electrical resistance, is universal across a…

cond-mat.str-el2024★ 8 cited

Absence of a bulk charge density wave signature in x-ray measurements of UTe $_{2}$

Caitlin S. Kengle, Dipanjan Chaudhuri, Xuefei Guo +12

The long-sought pair density wave (PDW) is an exotic phase of matter in which charge density wave (CDW) order is intertwined with the amplitude or phase of coexisting, superconduct…

cond-mat.str-el2023★ 4 cited

Disorder and diffuse scattering in single-chirality (TaSe $_{4}$ ) $_{2}$ I crystals

Jacob A. Christensen, Simon Bettler, Kejian Qu +11

The quasi-one-dimensional chiral compound (TaSe $_{4}$ ) $_{2}$ I has been extensively studied as a prime example of a topological Weyl semimetal. Upon crossing its phase transition temper…

cond-mat.str-el2023

Consistency between reflection M-EELS and optical spectroscopy measurements of the long-wavelength density response of Bi $_{2}$ Sr $_{2}$ CaCu $_{2}$ O $_{8 + x}$

Jin Chen, Xuefei Guo, Christian Boyd +11

The density fluctuation spectrum captures many fundamental properties of strange metals. Using momentum-resolved electron energy-loss spectroscopy (M-EELS), we recently showed that…

cond-mat.str-el2022

Anharmonic multiphonon origin of the valence plasmon in SrTi1-xNbxO3

Caitlin S. Kengle, Samantha I. Rubeck, Melinda Rak +10

Doped SrTi1-xNbxO3 exhibits superconductivity and a mid-infrared optical response reminiscent of copper-oxide superconductors. Strangely, its plasma frequency, omega_p, increases b…

cond-mat.mtrl-sci2022

A new quasi-one-dimensional transition metal chalcogenide semiconductor (Nb $_{4}$ Se $_{15}$ I $_{2}$ )I $_{2}$

Kejian Qu, Zachary W. Riedel, Irián Sánchez-Ramírez +8

The discovery of new low-dimensional transition metal chalcogenides is contributing to the already prosperous family of these materials. In this study, needle-shaped single crystal…

cond-mat.mtrl-sci2022★ 6 cited

Ultrafast x-ray scattering reveals composite amplitude collective mode in the Weyl charge density wave material (TaSe $_{4}$ ) $_{2}$ I

Quynh L. Nguyen, Ryan A. Duncan, Gal Orenstein +27

We report ultrafast x-ray scattering experiments of the quasi-1D charge density wave (CDW) material (TaSe $_{4}$ ) $_{2}$ I following photoexcitation with femtosecond infrared laser pulses…

cond-mat.mtrl-sci2022★ 4 cited

Transport and optical properties of the chiral semiconductor Ag3AuSe2

Juyeon Won, Soyeun Kim, Martin Gutierrez-Amigo +9

Previous band structure calculations predicted Ag3AuSe2 to be a semiconductor with a band gap of approximately 1 eV. Here, we report single crystal growth of Ag3AuSe2 and its trans…

cond-mat.str-el2020★ 13 cited

Pre-saturation phase in the frustrated ferro-antiferromagnet Pb $_{2}$ VO(PO $_{4}$ ) $_{2}$

F. Landolt, S. Bettler, Z. Yan +8

Magnetization, magnetic torque, neutron diffraction and NMR experiments are used to map out the $H$ $-$ $T$ phase diagram of the prototypical quasi-two-dimensional ferro-antiferromag…

cond-mat.str-el2019★ 35 cited

Sign-switching of dimer correlations in SrCu $_{2}$ (BO $_{3}$ ) $_{2}$ under hydrostatic pressure

Simon Bettler, Lena Stoppel, Zewu Yan +2

Magnetic and vibrational excitations in SrCu $_{2}$ (BO $_{3}$ ) $_{2}$ are studied using Raman spectroscopy at hydrostatic pressures up to 34 kbar and temperatures down to 2.6 K. The frequen…

cond-mat.str-el2019★ 13 cited

Magnetic structure and spin waves in the frustrated ferro-antiferromagnet Pb $_{2}$ VO(PO $_{4}$ ) $_{2}$

Simon Bettler, Florian Landolt, Ömer M. Aksoy +9

Single crystal neutron diffraction, inelastic neutron scattering and electron spin resonance experiments are used to study the magnetic structure and spin waves in Pb $_{2}$ VO(PO $_{4}$ )…

cond-mat.str-el2017★ 9 cited

High pressure Raman study of the quantum magnet (C $_{4}$ H $_{12}$ N $_{2}$ )Cu $_{2}$ Cl $_{6}$

Simon Bettler, Gediminas Simutis, Gérard Perren +3

Magnetic and lattice excitations in the quantum antiferromagnet (C $_{4}$ H $_{12}$ N $_{2}$ )Cu $_{2}$ Cl $_{6}$ (PHCC) are studied across two pressure-induced phase transition at $P_c=4.3~\mathrm…

Tuning Incommensurate Charge Order in Ba1−x​Srx​Al4​ and Ba1−y​Euy​Al4​

Conformally invariant charge fluctuations in a strange metal

Absence of a bulk charge density wave signature in x-ray measurements of UTe2​

Disorder and diffuse scattering in single-chirality (TaSe4​)2​I crystals

Consistency between reflection M-EELS and optical spectroscopy measurements of the long-wavelength density response of Bi2​Sr2​CaCu2​O8+x​

Anharmonic multiphonon origin of the valence plasmon in SrTi1-xNbxO3

A new quasi-one-dimensional transition metal chalcogenide semiconductor (Nb4​Se15​I2​)I2​

Ultrafast x-ray scattering reveals composite amplitude collective mode in the Weyl charge density wave material (TaSe4​)2​I