Quadrupolar spin liquid, octupolar Kondo coupling and odd-frequency superconductivity in an exactly solvable model

Autor: de Farias, Carlene S., de Carvalho, Vanuildo S., Miranda, Eduardo, Pereira, Rodrigo G.

Publikováno v: Phys. Rev. B 102, 075110 (2020)

We propose an exactly solvable model for $j_{\text{eff}}=\frac32$ local moments on the honeycomb lattice. Our construction is guided by a symmetry analysis and by the requirement of an exact solution in terms of a Majorana fermion representation for

Externí odkaz: http://arxiv.org/abs/2003.13790

Effective model for $A_{2g}$ Raman signal in URu$_2$Si$_2$

Autor: de Farias, Carlene Silva, Méasson, Marie-Aude, Ferraz, Alvaro, Burdin, Sébastien

Publikováno v: Phys. Rev. B 101, 205114 (2020)

We propose an effective model to describe the $A_{2g}$ signal in Raman scattering experiments in the URu$_{2}$Si$_{2}$ compound. We follow the scheme proposed earlier by Khveshchenko and Wiegmann [Phys. Rev. Lett. 73, 500 (1994)] to calculate the $A_

Externí odkaz: http://arxiv.org/abs/1710.08942

Spin liquid versus long range magnetic order in the frustrated body-centered tetragonal lattice

Autor: Farias, Carlene, Thomas, Christopher, Pépin, Catherine, Ferraz, Alvaro, Lacroix, Claudine, Burdin, Sébastien

Publikováno v: Phys. Rev. B*94*, 134420 (2016)

An $SU({\rm n})$-symmetric generalization of the Heisenberg model for quantum spin $S$ operators is used to investigate the geometrically frustrated body-centered tetragonal (BCT) lattice with antiferromagnetic interlayer coupling $J_1$ and intralaye

Externí odkaz: http://arxiv.org/abs/1602.00938

Effective model for the A(2g) Raman signal in URu2Si2

Autor: Farias, Carlene Paula Silva de

Publikováno v: Repositório Institucional da Unicamp
Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
Repositório da Produção Científica e Intelectual da Unicamp

Agradecimentos: We acknowledge discussions with I. Paul, S. Magalhães, J. Buhot, R. G. Pereira, V. S. de Carvalho, H. Harima, C. Pépin, C. Lacroix, D. Baeriswyl, and E. Miranda. C.S.d.F. acknowledge financial support from Capes/Cofecub (Project No.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::359137c9e2811b390783b634ccb1c440

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