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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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9 papers · 2 filters
Quantum Tricritical Points in NbFe
Sven Friedemann, Will J Duncan, Max Hirschberger +6
Quantum critical points (QCPs) emerge when a 2nd order phase transition is suppressed to zero temperature. In metals the quantum fluctuations at such a QCP can give rise to new pha…
Parity-violating hybridization in heavy Weyl semimetals
Po-Yao Chang, Piers Coleman
We introduce a simple model to describe the formation of heavy Weyl semimetals in non-centrosymmetric heavy fermion compounds under the influence of a parity-mixing, onsite hybridi…
Model for Ferromagnetic Quantum Critical Point in a 1D Kondo Lattice
Yashar Komijani, Piers Coleman
Motivated by recent experiments, we study a quasi-one dimensional model of a Kondo lattice with Ferromagnetic coupling between the spins. Using bosonization and dynamical large-N t…
Effects of interaction strength, doping, and frustration on the antiferromagnetic phase of the two-dimensional Hubbard model
L. Fratino, M. Charlebois, P. Sémon +2
Recent quantum-gas microscopy of ultracold atoms and scanning tunneling microscopy of the cuprates reveal new detailed information about doped Mott antiferromagnets, which can be c…
Implications of the Measured Angular Anisotropy at the Hidden Order Transition of URu2Si2
Premala Chandra, Piers Coleman, Rebecca Flint +2
The heavy fermion compound URu2Si2 continues to attract great interest due to the long- unidentified nature of the hidden order that develops below 17.5K. Here we discuss the impli…
Linarite - a quasi-critical J-J chain
Eron Cemal, Mechthild Enderle, Reinhard K. Kremer +5
The mineral linarite, PbCuSO(OH), is a spin 1/2 chain with frustrating nearest neighbor ferromagnetic and next-nearest neighbor antiferromagnetic exchange interactions. Our…
Ultra-small moment incommensurate spin density wave order masking a ferromagnetic quantum critical point in NbFe
P. G. Niklowitz, M. Hirschberger, M. Lucas +8
In the metallic magnet NbFe, the low temperature threshold of ferromagnetism can be investigated by varying the Fe excess within a narrow homogeneity range. We…
Signatures of the Mott transition in the antiferromagnetic state of the two-dimensional Hubbard model
L. Fratino, P. Sémon, M. Charlebois +2
The properties of a phase with large correlation length can be strongly influenced by the underlying normal phase. We illustrate this by studying the half-filled two-dimensional Hu…
Skyrme insulators: insulators at the brink of superconductivity
Onur Erten, Po-Yao Chang, Piers Coleman +1
Current theories of superfluidity are based on the idea of a coherent quantum state with topologically protected, quantized circulation. When this topological protection is absent,…