771 citations · 2.6k across the 12 of their papers we have counts for
12 papers
Topological insulators in twisted transition metal dichalcogenide homobilayers
Fengcheng Wu, Timothy Lovorn, Emanuel Tutuc +2
We show that moiré bands of twisted homobilayers can be topologically nontrivial, and illustrate the tendency by studying valence band states in valleys of twisted bilayer…
Chiral transport and electronic correlations in surface states of HfNiSn single crystals
L. Steinke, J. J. Kistner-Morris, T. F. Lovorn +9
In most topological insulators, the valence and conduction band appear in reverse or inverted order compared to an equivalent insulator with isolated atoms. Here, we explore a diff…
Hubbard model physics in transition metal dichalcogenide moiré bands
Fengcheng Wu, Timothy Lovorn, Emanuel Tutuc +1
Flexible long period moir\' e superlattices form in two-dimensional van der Waals crystals containing layers that differ slightly in lattice constant or orientation. In this Letter…
Topologically Protected Helical States in Minimally Twisted Bilayer Graphene
Shengqiang Huang, Kyounghwan Kim, Dmitry K. Efimkin +6
In minimally twisted bilayer graphene, a moir{é} pattern consisting of AB and BA stacking regions separated by domain walls forms. These domain walls are predicted to support count…
Tunable Valley Populations in Hole-Doped Trilayer WSe
Hema C. P. Movva, Timothy Lovorn, Babak Fallahazad +7
We present a combined experimental and theoretical study of valley populations in the valence bands of trilayer WSe. Shubnikovde Haas oscillations show that trilayer holes p…
Computational Investigation of Inverse-Heusler compounds for Spintronics Applications
Jianhua Ma, Jiangang He, Dipanjan Mazumdar +6
First-principles calculations of the electronic structure, magnetism and structural stability of inverse-Heusler compounds with the chemical formula \textit{XYZ} are presented…
Theory of optical absorption by interlayer excitons in transition metal dichalcogenide heterobilayers
Fengcheng Wu, Timothy Lovorn, A. H. MacDonald
We present a theory of optical absorption by interlayer excitons in a heterobilayer formed from transition metal dichalcogenides. The theory accounts for the presence of small rela…
Spin-charge split pairing in underdoped cuprate superconductors: support from low- specific heat
Sanjoy K. Sarker, Timothy Lovorn
We calculate the specific heat of a weakly interacting dilute system of bosons on a lattice and show that it is consistent with the measured electronic specific heat in the superco…
Complex Quasi-Two-Dimensional Crystalline Order Embedded in VO and Other Crystals
Timothy Lovorn, Sanjoy K. Sarker
Metal oxides such as VO undergo structural transitions to low-symmetry phases characterized by intricate crystalline order, accompanied by rich electronic behavior. We derive a…
Topological Exciton Bands in Moiré Heterojunctions
Fengcheng Wu, Timothy Lovorn, A. H. MacDonald
Moiré patterns are common in Van der Waals heterostructures and can be used to apply periodic potentials to elementary excitations. We show that the optical absorption spectrum of…
Charge pair hopping and Bose-Einstein condensation in underdoped Mott insulators
Sanjoy K. Sarker, Timothy Lovorn
Recently, we have solved the long-standing problem of connecting the physics of the Mott insulator to the underdoped regime of the t-J model [PRB 82, 014504, 2010]. We have derived…
A Consistent Theory of Underdoped Cuprates: Evolution of the RVB State From Half Filling
Sanjoy K Sarker, Timothy Lovorn
We have been able to resolve two long-standing issues that are central to the theory of high Tc superconductivity: (1) How is the physics of the doped region connected to that of t…