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The stability of different phases of the three-dimensional non-relativistic electron gas is analyzed using stochastic methods. With decreasing density, we observe a {\it continuous} transition from the paramagnetic to the ferromagnetic…

Condensed Matter · Physics 2009-10-31 G. Ortiz , M. Harris , P. Ballone

$^{125}$Te NMR experiments in field ($H$) applied along the easy magnetization axis (the $a$-axis) revealed slow electronic dynamics developing in the paramagnetic state of UTe$_2$. The observed slow fluctuations are concerned with a…

The crystallographic stacking order in multilayer graphene plays an important role in determining its electronic properties. It has been predicted that a rhombohedral (ABC) stacking displays a conducting surface state with flat electronic…

Coexistence of phases, characterized by different electronic degrees of freedom, commonly occurs in layered superconductors. Among them, alkaline intercalated chalcogenides are model systems showing microscale coexistence of paramagnetic…

Superconductivity · Physics 2020-02-04 A. Ricci , G. Campi , B. Joseph , N. Poccia , D. Innocenti , C. Gutt , M. Tanaka , H. Takeya , Y. Takano , T. Mizokawa , M. Sprung , N. L. Saini

Using first-principles calculations, we analyze the structural properties of tungsten trioxide WO3 . Our calculations rely on density functional theory and the use of the B1-WC hybrid functional, which provides very good agreement with…

Materials Science · Physics 2016-12-28 Hanen Hamdi , Ekhard K. H. Salje , Philippe Ghosez , Eric Bousquet

We analyze the quasinormal modes of the D2-D8' model of 2+1-dimensional, strongly-coupled, charged fermions in a background magnetic field and at nonzero density. The model is known to include a quantum Hall phase with integer filling…

High Energy Physics - Theory · Physics 2013-02-13 Niko Jokela , Matti Jarvinen , Matthew Lippert

New materials are currently sought for use in spintronics applications. Ferromagnetic materials with half metallic properties are valuable in this respect. Here we present the electronic structure and magnetic properties of binary compounds…

Materials Science · Physics 2016-08-31 B. Sanyal , L. Bergqvist , O. Eriksson

The magnetic phase diagram of CuCrO2 was studied with a novel method of simultaneous Cu NMR and electric polarization techniques with the primary goal of demonstrating that regardless of cooling history of the sample the magnetic phase with…

Strongly Correlated Electrons · Physics 2018-03-21 Yu. A. Sakhratov , J. J. Kweon , E. S. Choi , H. D. Zhou , L. E. Svistov , A. P. Reyes

We discuss a {\em family} of planar (two-dimensional) systems with the following phase strucure: a Fermi liquid, which goes by a second order transition (with non classical exponent even in mean-field) to an intermediate, inhomogeneous…

Condensed Matter · Physics 2016-08-31 Ganpathy Murthy , R. Shankar

Using first-principles density functional calculations, we study the possible phases of CeMnNi$_{4}$ and show that the ground state is ferromagnetic. We observed the hexagonal phase to be lowest in energy whereas experimentally observed…

Materials Science · Physics 2007-05-23 P. Murugan , Abhishek Kumar Singh , G. P. Das , Yoshiyuki Kawazoe

We use density functional theory based first-principles method to investigate the bandstructure and phase stability in the laterally grown hexagonal C$_x$(BN)$_{1-x}$, two-dimensional Graphene and $h$-BN hybrid nanomaterials, which were…

Mesoscale and Nanoscale Physics · Physics 2016-03-21 Ransell D'Souza , Sugata Mukherjee

Motivated by the observation of partial magnetic order in kagome-based magnets, we study the classical kagome Ising antiferromagnet, known as kagome spin ice, including further-neighbor interactions at zero and finite temperature. While the…

Strongly Correlated Electrons · Physics 2024-06-04 Eric C. Andrade , Matthias Vojta

Magnetic state is a partial ordered state if only part of the electrons in the system give contribution to the magnetic order. We study Heisenberg model of two sublattice spin system, on the body-centered cubic lattice, with…

Strongly Correlated Electrons · Physics 2024-09-20 N. Karchev

Using density functional methods we calculated structural and electronic properties of bulk chloroform and bromoform intercalated C60, C60 2CHX3 (X=Cl,Br). Both compounds are narrow band insulator materials with a gap between valence and…

Materials Science · Physics 2016-08-31 R. Windiks , A. Bill , B. Delley , V. Z. Kresin

A systematic structural study of the Fe2Mo3O8 system as a function of pressure, temperature, and magnetic field reveals that the P63mc space group of this material remains stable for a broad range of these parameters. No changes are seen in…

The bilayered member of the Ruddesden-Popper family of ruthenates, Sr$_3$Ru$_2$O$_7$, has received an increasing attention due to its interesting properties and phases. By using first principle calculations we find that the ground-state is…

Strongly Correlated Electrons · Physics 2017-05-10 Pablo Rivero , Vincent Meunier , William Shelton

We construct a class of exact ground states of three-dimensional periodic Anderson models (PAMs) -- including the conventional PAM -- on regular Bravais lattices at and above 3/4 filling, and discuss their physical properties. In general,…

Strongly Correlated Electrons · Physics 2025-03-25 Zsolt Gulacsi , Dieter Vollhardt

Co3Si was recently reported to exhibit remarkable magnetic properties in the nanoparticle form [Appl. Phys. Lett. 108, 152406 (2016)], yet better understanding of this material is to be promoted. Here we report a study on the crystal…

Materials Science · Physics 2017-07-18 Xin Zhao , Shu Yu , Shunqing Wu , Manh Cuong Nguyen , Cai-Zhuang Wang , Kai-Ming Ho

We report investigations of the structural, magnetic, electrical transport and thermal properties of five compositions of the metallic perovskite GdRh$_3$C$_{1-x}$B$_x$ ($0.00 \le x \le 1.00$). Our results show that all the five…

Strongly Correlated Electrons · Physics 2020-09-09 Abhishek Pandey , A. K. Singh , Shovan Dan , K. Ghosh , I. Das , S. Tripathi , U. Kumar , R. Ranganathan , D. C. Johnston , Chandan Mazumdar

Two-dimensional (2D) magnetic materials have attracted considerable interest owing to their potential applications in spintronics and fundamental investigations into low-dimensional magnetism. Cr2Te3, a quasi 2D non van der Waals magnet,…

Materials Science · Physics 2025-03-27 Long Zhang , Zhongzhu Jiang , Yugang Zhang , Jing Zhang , Aifeng Wang , Mingquan He , Yuping Sun , Xuan Luo , Yisheng Chai