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Physics

Condensed matter

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Displaying 251 - 275 of 2290

Chiral central charge from a single bulk wave function

April 28, 2022
Author(s)
Isaac H. Kim, Bowen Shi, Kohtaro Kato, Victor Albert
A (2+1)-dimensional gapped quantum many-body system can have a topologically protected energy current at its edge. The magnitude of this current is determined entirely by the temperature and the chiral central charge c_-, a quantity associated with the

Accelerated Green's function molecular dynamics

April 16, 2022
Author(s)
Vitor R. Coluci, Socrates de Oliveira Dantas Dantas, Vinod Tewary
A Green's function formalism has been applied to solve the equations of motion in classical molecular dynamics simulations. This formalism enables larger time scales to be probed for vibration processes in carbon nanomaterials. In Green's function

Highly Tunable Magnetic Phases in Transition-Metal Dichalcogenide Fe 1/3+d NbS 2

April 5, 2022
Author(s)
Shan Wu, Zhijun Xu, Shannon Haley, Sophie Weber, Arani Acharya, Eran Maniv, Yiming Qiu, A. A. Aczel, Nicholas S. Settineri, Jeffrey Neaton, James Analytis, Robert Birgeneau
Layered transition metal dichalcogenides (TMDCs) host a plethora of interesting physical phenomena ranging from charge order to superconductivity. By introducing magnetic ions into 2H-NbS 2, the material forms a family of magnetic intercalated TMDCs T xNbS

Symmetry of Magnetic Correlations in Spin-Triplet Superconductor UTe2

April 5, 2022
Author(s)
Nicholas Butch, Sheng Ran, Shanta Saha, Paul Neves, Mark P. Zic, Johnpierre N. Paglione, Yegor N. Vekhov, Sergiy Gladchenko, Jose Rodriguez Rivera
The temperature dependence of the low-energy magnetic excitations in the spin-triplet superconductor UTe2 was measured via inelastic neutron scattering in the normal and superconducting states. These excitations have a peak instensity at 4 meV, follow the

The local structure of sulfur vacancies on the basal plane of monolayer MoS2

April 5, 2022
Author(s)
Angel Garcia-Esparza, Sangwook Park, Abrosham Hadi, John Vinson, Baxter Abraham, Alessandro Gallo, Dennis Nordlund, Taeho Roy Kim, Roberto Alonso-Mori, Jean-Luc Bredas, Xiaolin Zheng, Dimosthenis Sokaras
The nature of the S-vacancy is central to controlling the electronic properties of monolayer MoS2. Understanding the geometric and electronic structures of the S-vacancy on the basal plane of monolayer MoS2 remains elusive. Here, operando S K-edge X-ray

Generic character of charge and spin density waves in superconducting cuprates

April 4, 2022
Author(s)
Sangjun Lee, Edwin Huang, Thomas Johnson, Xuefei Guo, Ali Husain, Matteo Mitrano, Kannan Lu, Alexander Zakrzewski, Gilberto de la Pena, Yingying Peng, Hai Huang, Sang-Jun Lee, Hoyoung Jang, Jun-Sik Lee, Young Joe, W.Bertrand (Randy) Doriese, Paul Szypryt, Daniel Swetz, Songxue Chi, Adam Aczel, Gregory MacDougall, Steven Kivelson, Eduardo Fradkin, Peter Abbamonte
Charge density waves (CDWs) have been observed in nearly all families of copper-oxide superconductors. But the behavior of these phases across different families has been perplexing. In La-based cuprates, the CDW wavevector is an increasing function of

Coherent contributions to population dynamics in a semiconductor microcavity

March 29, 2022
Author(s)
Jagannath Paul, Hendrik Rose, Ethan Swagel, Torsten Meier, Jared Wahlstrand, Alan Bristow
Multidimensional coherent spectroscopy (MDCS) is used to separate coherent and incoherent many-body contributions to the population-time dynamics in a GaAs-based semiconductor microcavity encapsulating a single InGaAs quantum well. In a three-pulse four

Reassessing the Significance of Reduced Aggregation and Crystallinity of Naphthalene Diimide-Based Copolymer Acceptors in All-Polymer Solar Cells

March 28, 2022
Author(s)
Eliot Gann, Christopher McNeill, Doan Vu, Martyn Jervic, Chao Wang, Lars Thomsen, Mats Andersson
Terpolymerization is a facile and effective strategy to control the aggregation and crystallinity of semiconducting polymers which has been exploited to improve the photovoltaic performance of all-polymer solar cells (all-PSCs). Applying this strategy to

Are 2D Interfaces Really Flat?

March 15, 2022
Author(s)
Zhihui Cheng, Huairuo Zhang, Son Le, Hattan Abuzaid, Guoqing Li, Yifei Yu, Albert Davydov, Linyou Cao, Aaron Franklin, Curt A. Richter
Two-dimensional (2D) materials are amenable to external mechanical deformation and thus forming bubbles and wrinkles. However, little is known about the dynamics of 2D interfaces, especially their flatness under different conditions. Here we use cross
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