T. Lacmann

activity

20222025

most citedAn Electronic Nematic Liquid in BaNi

_{2}

_{2}

33 citations · 139 across the 14 of their papers we have counts for

collaborators

14 papers

cond-mat.supr-con2025

Strain-induced structural change and nearly-commensurate diffuse scattering in the model high-temperature superconductor HgBa $_{2}$ CuO $_{4 + δ}$

Mai Ye, Wenshan Hong, Tom Lacmann +9

We investigate the strain response of underdoped HgBa $_{2}$ CuO $_{4 + δ}$ (Hg1201), by synchrotron X-ray diffraction and corresponding simulations of thermal diffuse scattering. The com…

cond-mat.supr-con2025

Orbital Ordering in the Charge Density Wave Phases of BaNi $_{2}$ (As $_{1 - x}$ P $_{x}$ ) $_{2}$

Tom Lacmann, Robert Eder, Igor Vinograd +8

We use resonant X-ray scattering at the nickel L $_{2, 3}$ edges to investigate the interplay between orbital degrees of freedom and charge density waves (CDW) in the superconductor…

cond-mat.supr-con2025★ 1 cited

Charge density waves and soft phonon evolution in the superconductor BaNi $_{2}$ (As $_{1 - x}$ P $_{x}$ ) $_{2}$

Tom Lacmann, Sofia-Michaela Souliou, Fabian Henssler +8

The superconductor BaNi $_{2}$ As $_{2}$ exhibits a soft-phonon-driven, incommensurate charge density wave (I-CDW) which is accompanied by a small orthorhombic structural phase transition…

cond-mat.supr-con2025★ 1 cited

Resonant x-ray scattering study of charge-density wave correlations in YBa $_{2}$ Cu $_{3}$ O $_{6 + x}$ under uniaxial stress

S. Nakata, D. Betto, E. Schierle +13

We report a comprehensive study of the uniaxial stress response of charge-density-wave (CDW) correlations in detwinned single crystals of the high temperature superconductor YBa$_2…

cond-mat.str-el2025★ 5 cited

Charge-density-wave quantum critical point under pressure in 2 $H$ -TaSe $_{2}$

Yuliia Tymoshenko, Amir-Abbas Haghighirad, Rolf Heid +13

Suppressing of an ordered state that competes with superconductivity is one route to enhance superconducting transition temperatures. Whereas the effect of suppressing magnetic sta…

cond-mat.supr-con2024★ 2 cited

Chemical pressure tuning of competing orders in $Ba_{1 - x} Ca_{x} Ni_{2} As_{2}$

F. Henssler, K. Willa, M. Frachet +5

$Ba Ni_{2} As_{2}$ , a structural-analogue to the iron-based parent compound $Ba Fe_{2} As_{2}$ , offers a unique platform to study…

cond-mat.str-el2024★ 3 cited

Anomalous phonon Grüneisen parameters in semiconductor Ta $_{2}$ NiS $_{5}$

Mai Ye, Tom Lacmann, Mehdi Frachet +7

Strain tuning is a powerful experimental method in probing correlated electron systems. Here we study the strain response of the lattice dynamics and electronic structure in semico…

cond-mat.supr-con2024★ 17 cited

Pressure-dependent Electronic Superlattice in the Kagome-Superconductor CsV $_{3}$ Sb $_{5}$

F. Stier, A. -A. Haghighirad, G. Garbarino +9

We present a high-resolution single crystal x-ray diffraction study of kagome-superconductor \cvs, exploring its response to variations in pressure and temperature. We discover tha…

cond-mat.supr-con2023★ 14 cited

Using strain to uncover the interplay between two- and three-dimensional charge density waves in high-temperature superconducting YBa $_{2}$ Cu $_{3}$ O $_{y}$

Igor Vinograd, Sofia Michaela Souliou, Amir-Abbas Haghighirad +14

Uniaxial pressure provides an efficient approach to control the competition between charge density waves (CDWs) and superconductivity in underdoped YBa $_{2}$ Cu $_{3}$ O $_{y}$ . I…

cond-mat.supr-con2023★ 6 cited

The high-pressure phase diagram of BaNi $_{2}$ As $_{2}$ : unconventional charge-density-waves and structural phase transitions

Tom Lacmann, Amir-Abbas Haghighirad, Sofia-Michaela Souliou +5

Structural phase transitions accompanied by incommensurate and commensurate charge density wave (CDW) modulations of unconventional nature have been reported in BaNi $_{2}$ As $_{2}$ , a n…

cond-mat.str-el2022★ 33 cited

An Electronic Nematic Liquid in BaNi $_{2}$ As $_{2}$

Yi Yao, Roland Willa, Tom Lacmann +10

Understanding the organizing principles of interacting electrons and the emergence of novel electronic phases is a central endeavor of condensed matter physics. Electronic nematici…

cond-mat.str-el2022★ 28 cited

Elastoresistivity in the incommensurate charge density wave phase of BaNi $_{2}$ (As $_{1-x}$ P $_{x}$ ) $_{2}$

M. Frachet, P. W. Wiecki, T. Lacmann +7

Electronic nematicity, the breaking of the crystal lattice rotational symmetry by the electronic fluid, is a fascinating quantum state of matter. Recently, BaNi $_{2}$ As $_{2}$ has emerg…

cond-mat.supr-con2022★ 2 cited

Charge-density-wave transitions, phase diagram, soft phonon and possible electronic nematicity: a thermodynamic investigation of BaNi2(As,P)2

Christoph Meingast, Anmol Shukla, Liran Wang +9

A detailed investigation of BaNi2(As,P)2 single crystals using high-resolution thermal-expansion, heat-capacity,Young-modulus and resistivity measurements is presented. The experim…

cond-mat.str-el2022★ 27 cited

Soft-phonon and charge-density-wave formation in nematic BaNi $_{2}$ As $_{2}$

S. M. Souliou, T. Lacmann, R. Heid +7

We use diffuse and inelastic x-ray scattering to study the formation of an incommensurate charge-density-wave (I-CDW) in BaNi $_{2}$ As $_{2}$ , a candidate system for charge-driven electr…

Strain-induced structural change and nearly-commensurate diffuse scattering in the model high-temperature superconductor HgBa2​CuO4+δ​

Orbital Ordering in the Charge Density Wave Phases of BaNi2​(As1−x​Px​)2​

Charge density waves and soft phonon evolution in the superconductor BaNi2​(As1−x​Px​)2​

Resonant x-ray scattering study of charge-density wave correlations in YBa2​Cu3​O6+x​ under uniaxial stress

Charge-density-wave quantum critical point under pressure in 2H-TaSe2​

Chemical pressure tuning of competing orders in Ba1−x​Cax​Ni2​As2​

Anomalous phonon Grüneisen parameters in semiconductor Ta2​NiS5​

Pressure-dependent Electronic Superlattice in the Kagome-Superconductor CsV3​Sb5​

Using strain to uncover the interplay between two- and three-dimensional charge density waves in high-temperature superconducting YBa2​Cu3​Oy​

The high-pressure phase diagram of BaNi2​As2​: unconventional charge-density-waves and structural phase transitions

An Electronic Nematic Liquid in BaNi2​As2​

Elastoresistivity in the incommensurate charge density wave phase of BaNi2​(As1-x​Px​)2​