65 citations · 314 across the 14 of their papers we have counts for
13 papers
Field-tuned ferroquadrupolar quantum phase transition in the insulator TmVO
Pierre Massat, Jiajia Wen, Jack M. Jiang +7
We report results of low-temperature heat capacity, magnetocaloric effect and neutron diffraction measurements of TmVO, an insulator that undergoes a continuous ferroquadrupo…
Momentum Dependence of the Nematic Order Parameter in Iron-Based Superconductors
H. Pfau, S. D. Chen, M. Yi +11
The momentum dependence of the nematic order parameter is an important ingredient in the microscopic description of iron-based high-temperature superconductors. While recent report…
Growth of nematic susceptibility in the field-induced normal state of an iron-based superconductor revealed by elastoresistivity measurements in a 65 T pulsed magnet
J. A. W. Straquadine, J. C. Palmstrom, P. Walmsley +6
In the iron-based superconductors, both nematic and magnetic fluctuations are expected to enhance superconductivity and may originate from a quantum critical point hidden beneath t…
Signatures of Anelastic Domain Relaxation in Ba(FeCo)As Investigated by Mechanical Modulation of Resistivity
Alexander T. Hristov, Matthias S. Ikeda, Johanna C. Palmstrom +1
The resistive response of Ba(FeCo)As to AC mechanical deformation is considered in the multi-domain state. This resistance change depends both upon the an…
AC Elastocaloric effect as a probe for thermodynamic signatures of continuous phase transitions
Matthias S. Ikeda, Joshua A. W. Straquadine, Alexander T. Hristov +5
Studying the response of materials to strain can elucidate subtle properties of electronic structure in strongly correlated materials. So far, mostly the relation between strain an…
Divergence of the quadrupole-strain susceptibility of YbRuGe; a local moment realization of electronic nematicity
Elliott Rosenberg, Jiun-Haw Chu, Jacob Ruff +2
Ferroquadrupole order associated with local atomic orbitals of rare earth ions is a realization of electronic nematic order. However, there are relatively few examples of inte…
Elastoresistive and Elastocaloric Anomalies at Magnetic and Electronic-Nematic Critical Points
Alexander T. Hristov, Matthias S. Ikeda, Johanna C. Palmstrom +2
Using Ba(FeCo)As as an exemplar material exhibiting second order electronic-nematic and antiferromagnetic transitions, we present measurements that re…
Measurement of Elastoresistivity at Finite Frequency by Amplitude Demodulation
Alexander T. Hristov, Johanna C. Palmstrom, Joshua A. W. Straquadine +3
Elastoresistivity, the relation between resistivity and strain, can elucidate subtle properties of the electronic structure of a material and is an increasingly important tool for…
Critical divergence of the symmetric () nonlinear elastoresistance near the nematic transition in an iron-based superconductor
Johanna C. Palmstrom, Alexander T. Hristov, Steven A. Kivelson +2
We report the observation of a nonlinear elastoresistivity response for the prototypical underdoped iron pnictide Ba(FeCo)As. Our measurements reveal a…
Transverse fields to tune an Ising-nematic quantum critical transition
Akash V. Maharaj, Elliott W. Rosenberg, Alexander T. Hristov +4
The paradigmatic example of a continuous quantum phase transition is the transverse field Ising ferromagnet. In contrast to classical critical systems, whose properties depend only…
Spin Freezing in The Frustrated Disordered Quantum Magnet Ba(MnV)O
A. T. Hristov, M. C. Shapiro, Harlyn J. Silverstein +8
BaMnO is a geometrically frustrated spin dimer compound. We investigate the effect of site disorder on the zero field phase diagram of this material by considering the…
Measurement of the and components of the elastoresistivity tensor for tetragonal materials via transverse resistivity configurations
M. C. Shapiro, A. T. Hristov, J. C. Palmstrom +2
The elastoresistivity tensor relates changes in resistivity to strains experienced by a material. As a fourth-rank tensor, it contains considerably more information abo…
Symmetry constraints on the elastoresistivity tensor
M. C. Shapiro, Patrik Hlobil, A. T. Hristov +2
The elastoresistivity tensor characterizes changes in a material's resistivity due to strain. As a fourth-rank tensor, elastoresistivity can be a uniquely useful probe…