357 citations · 1.2k across the 34 of their papers we have counts for
9 papers · 1 filter
Magnetic Pair Distribution Function Data Using Polarized Neutrons and ad hoc Corrections
Benjamin A. Frandsen, Raju Baral, Barry Winn +1
We report the first example of magnetic pair distribution function (mPDF) data obtained through use of neutron polarization analysis. Using the antiferromagnetic semiconductor MnTe…
The generalized quasiharmonic approximation via space group irreducible derivatives
Mark A. Mathis, Amey Khanolkar, Lyuwen Fu +9
The quasiharmonic approximation (QHA) is the simplest nontrivial approximation for interacting phonons under constant pressure, bringing the effects of anharmonicity into temperatu…
Validating First-Principles Phonon Lifetimes via Inelastic Neutron Scattering
Enda Xiao, Hao Ma, Matthew S. Bryan +10
Phonon lifetimes are a key component of quasiparticle theories of transport, yet first-principles lifetimes are rarely directly compared to inelastic neutron scattering (INS) resul…
Direct Observation of Chiral Phonons by Inelastic X-ray Scattering
Qingan Cai, Olle Hellman, Bin Wei +5
Phonon chirality has attracted intensive attention since it breaks the traditional cognition that phonons are linear propagating bosons. This new quasiparticle property has been ex…
Spin dynamics and a nearly continuous magnetic phase transition in an entropy-stabilized oxide antiferromagnet
Benjamin A. Frandsen, K. Alec Petersen, Nicolas A. Ducharme +7
The magnetic order and the spin dynamics in the antiferromagnetic entropy-stabilized oxide (MgCoNiCuZn)O (MgO-ESO) have been studied using m…
Excitations in the field-induced quantum spin liquid state of alpha-RuCl3
A. Banerjee, P. Lampen-Kelley, J. Knolle +14
The Kitaev model on a honeycomb lattice predicts a paradigmatic quantum spin liquid (QSL) exhibiting Majorana Fermion excitations. The insight that Kitaev physics might be realized…