activity
19952026
most citedBeyond Eliashberg superconductivity in MgB2: anharmonicity, two-phonon scattering, and multiple gaps

1k citations · 2.1k across the 15 of their papers we have counts for

collaborators

15 papers

cond-mat.mtrl-sci2026

Strain-stabilized altermagnetism and conductivity anisotropy in FeSb2

Masoumeh Davoudiniya, Alyssa M. Kennedy, Amy Y. Liu +1

We show that FeSb2 experiences a transition from a conventional antiferromagnet to an altermagnet when tensile strain is applied. In the altermagnetic phase, the lifted Kramers deg…

cond-mat.mtrl-sci2026

Decoding the Micromagnetic Hamiltonian from Magnetic Fingerprints

Bradley J. Fugetta, Anqi Liu, Kai Liu +2

Extracting intrinsic magnetic Hamiltonians directly from magnetometry is challenging due to the high dimensionality of the parameter space and the degeneracy induced by ensemble av…

cond-mat.mes-hall2024★ 1 cited

Electrical Detection of Magnetization Switching in Single-Molecule Magnets

Amjad Alqahtani, DaVonne Henry, Lubomír Havlíček +12

Single-molecule magnets (SMMs) with chemically tailorable properties are potential building blocks for quantum computing, high-density magnetic memory, and spintronics.1 2 3,4 Thes…

cond-mat.mtrl-sci2023★ 4 cited

Machine-Learning Recognition of Dzyaloshinskii-Moriya Interaction from Magnetometry

Bradley J. Fugetta, Zhijie Chen, Dhritiman Bhattacharya +4

The Dzyaloshinskii-Moriya interaction (DMI), which is the antisymmetric part of the exchange interaction between neighboring local spins, winds the spin manifold and can stabilize…

cond-mat.str-el2019★ 237 cited

Visualizing Exotic Orbital Texture in the Single-Layer Mott Insulator 1T-TaSe2

Yi Chen, Wei Ruan, Meng Wu +18

Mott insulating behavior is induced by strong electron correlation and can lead to exotic states of matter such as unconventional superconductivity and quantum spin liquids. Recent…

cond-mat.mtrl-sci2017★ 41 cited

Effect of doping on lattice instabilities of single-layer 1H-TaS2

Oliver R. Albertini, Amy Y. Liu, Matteo Calandra

Recent ARPES measurements of single-layer 1H-TaS2 grown on Au(111) suggest strong electron doping from the substrate. In addition, STM/STS measurements on this system show suppress…

cond-mat.mtrl-sci2015★ 102 cited

Zone-center phonons of bulk, few-layer, and monolayer 1T-TaS: Detection of the commensurate charge density wave phase through Raman scattering

Oliver R. Albertini, Rui Zhao, Rebecca L. McCann +5

We present first-principles calculations of the vibrational properties of the transition metal dichalcogenide 1T-TaS for various thicknesses in the high-temperature (undistorte…

cond-mat.mtrl-sci2012★ 515 cited

Electron-hole transport and photovoltaic effect in gated MoS2 Schottky junctions

Marcio Fontana, Tristan Deppe, Anthony K. Boyd +4

Atomically thin MoS2 has recently emerged as a very attractive material for nanoscale optoelectronic devices. While n-type transport in MoS2 devices has been demonstrated, hole con…

cond-mat.supr-con2006★ 22 cited

Combining the advantages of superconducting MgB2 and CaC6 in one material: suggestions from first-principles calculations

Amy Y. Liu, I. I. Mazin

We show that a recently predicted layered phase of lithium monoboride, Li2B2, combines the key mechanism for strong electron-phonon coupling in MgB2 (i.e., interaction of covalent…

cond-mat.supr-con2002★ 22 cited

Nonconstant electronic density of states tunneling inversion for A15 superconductors: Nb3Sn

J. K. Freericks, A. Y. Liu, A. Quandt +1

We re-examine the tunneling data on A15 superconductors by performing a generalized McMillan-Rowell tunneling inversion that incorporates a nonconstant electronic density of states…

cond-mat.supr-con2001★ 1k cited

Beyond Eliashberg superconductivity in MgB2: anharmonicity, two-phonon scattering, and multiple gaps

Amy Y. Liu, I. I. Mazin, Jens Kortus

Density-functional calculations of the phonon spectrum and electron-phonon coupling in MgB are presented. The phonons, which involve in-plane B displacements, couple s…

cond-mat2000★ 28 cited

Comparison of structural transformations and superconductivity in compressed Sulfur and Selenium

Sven P. Rudin, Amy Y. Liu, J. K. Freericks +1

Density-functional calculations are presented for high-pressure structural phases of S and Se. The structural phase diagrams, phonon spectra, electron-phonon coupling, and supercon…

cond-mat.supr-con1998★ 12 cited

Reevaluating electron-phonon coupling strengths: Indium as a test case for ab initio and many-body-theory methods

Sven P. Rudin, R. Bauer, Amy Y. Liu +1

Using indium as a test case, we investigate the accuracy of the electron-phonon coupling calculated with state-of-the-art ab initio and many-body theory methods. The ab initio calc…

cond-mat1996

Vertex-corrected tunneling inversion in superconductors: Pb

J. K. Freericks, E. J. Nicol, A. Y. Liu +1

The McMillan-Rowell tunneling inversion program, which extracts the electron-phonon spectral function and the Coulomb pseudopotential from experimental tunneling da…

mtrl-th1995★ 80 cited

Linear-Response Calculation of Electron-Phonon Coupling Parameters

Amy Y. Liu, Andrew A. Quong

An ab initio method for calculating electron-phonon coupling parameters is presented. The method is an extension of the plane-wave-based linear-response method for the calculation…