Cavity magnon-polaritons in cuprate parent compounds

Curtis, Jonathan B.; Grankin, Andrey; Poniatowski, Nicholas R.; Galitski, Victor; Narang, Prineha; Demler, Eugene

doi:10.1103/physrevresearch.4.013101

Cited by 33 publications

(10 citation statements)

References 258 publications

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“…As this results from strong coupling between light and coherent charges, surface polaritons behave light-like at lower frequencies, as indicated by the coincidence of the light-line with the polaritonic dispersion (see Figure a, where the green and black curves converge near the red dashed line) transitioning to higher momenta (shorter wavelengths) associated with a more charge-like response as the frequency increases (black curve toward blue dashed line Figure a). Polaritons exist in many forms, including (but not limited to) SPhPs (Figure a), , SPPs, exciton, ,,, Cooper-pair, magnon, ,− Landau, − vibrational, − and molecular polaritons, − yet for this Perspective we will confine our focus to PhPs and PPs.…”

Section: Theories Of Polariton Anisotropymentioning

confidence: 99%

Anisotropy and Modal Hybridization in Infrared Nanophotonics Using Low-Symmetry Materials

Folland

Duan

et al. 2022

ACS Photonics

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Anisotropy has been a key property employed in the design of optical components for hundreds of years. However, in recent years there has been growing interest in polaritons supported within anisotropic (low crystal symmetry) materials for their ability to compress light to smaller, deeply subwavelength dimensions. While historically the first anisotropic polaritons probed were hyperbolic modes, research into anisotropic materials has recently turned toward hybrid materials and optical modes, employing phenomena such as phonon confinement, polaritonic strong coupling, and Moiré structures to design the optical properties. In this Perspective, we will briefly introduce the physics and theories of polariton anisotropy, review recently investigated anisotropic and two-dimensional materials, and then move on to a discussion of approaches toward realizing hybrid modes and identifying new materials. Based on the results from the past few years, we extend these discussions to highlight outstanding challenges and outline what we perceive as promising paths to further explore the potential for polariton anisotropy and hybrid systems in future nanophotonic optical devices.

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Section: Theories Of Polariton Anisotropymentioning

confidence: 99%

Anisotropy and Modal Hybridization in Infrared Nanophotonics Using Low-Symmetry Materials

Folland

Duan

et al. 2022

ACS Photonics

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“…Recently, it has been argued that this may be done by instead shaping the environment of electromagnetic fluctuations through the use of optical cavities, resonators, and metamaterials [14,15]. Many systems have recently been proposed to be amenable to control in this way, including superconductors [6,[16][17][18], excitonic insulators [19], antiferromagnets [20,21], spin-liquids [22], quantum Hall fluids [23], and ferroelectrics [24][25][26][27][28], with a great deal more proposed to exhibit strong coupling between material and optical excitations [29]. Recent experiments on * jon.curtis.94@gmail.com the metal-insulator transition in 1T -TaS 2 even seem to have seen promising signatures of cavity control on the transition temperature [30].…”

Section: Introductionmentioning

confidence: 99%

Local Fluctuations in Cavity Control of Ferroelectricity

Curtis¹,

Michael²,

Demler³

2023

Preprint

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Control of quantum matter through resonant electromagnetic cavities is a promising route towards establishing control over material phases and functionalities. Quantum paraelectric insulators-materials which are nearly ferroelectric-are particularly promising candidate systems for this purpose since they have strongly fluctuating collective modes which directly couple to the electric field. In this work we explore this possibility in a system comprised of a quantum paraelectric sandwiched between two high-quality metal mirrors, realizing a Fabry-Perot type cavity. By developing a full multimode, continuum description we are able to study the effect of the cavity in a spatially resolved way for a variety of system sizes and temperatures. Surprisingly, we find that once a continuum of transverse modes are included the cavity ends up suppressing ferroelectric correlations. This effect arises from the screening out of transverse photons at the cavity boundaries and as a result is confined to the surface of the paraelectric sample. We also explore the temperature dependence of this effect and find it vanishes at high temperatures, indicating it is a purely quantum mechanical effect. We connect our result to calculations of Casimir and Van der Waals forces, which we argue are closely related to the dipolar fluctuations in the quantum paraelectric. Our results are based on a general formalism and are expected to be widely applicable, paving the way towards studies of the quantum electrodynamics of heterostructures featuring multiple materials and phases.

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“…An intriguing question is therefore whether similar techniques can be used to manipulate the collective behavior and phase transitions in extended condensed matter systems [8][9][10][11][12][13]. Theoretical proposals along these lines include photon-mediated and enhanced superconductivity [14][15][16], photon-induced topological phases [17,18], or the control of Mott polaritons and magnetic exchange interactions [19][20][21][22], spin liquids [23], and various forms of ferroelectricity [24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Dynamical mean-field study of a photon-mediated ferroelectric phase transition

Lenk

Werner

et al. 2022

Phys. Rev. B

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The interplay of light and matter gives rise to intriguing cooperative effects in quantum many-body systems. This is even true in thermal equilibrium, where the electromagnetic field can hybridize with collective modes of matter, and virtual photons can induce interactions in the solid. Here, we show how these light-mediated interactions can be treated using the dynamical mean-field theory formalism. We consider a minimal model of a two-dimensional material that couples to a surface plasmon polariton mode of a metal-dielectric interface. Within the mean-field approximation, the system exhibits a ferroelectric phase transition that is unaffected by the light-matter coupling. Bosonic dynamical mean-field theory provides a more accurate description and reveals that the photon-mediated interactions enhance the ferroelectric order and stabilize the ferroelectric phase.

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Cavity magnon-polaritons in cuprate parent compounds

Cited by 33 publications

References 258 publications

Anisotropy and Modal Hybridization in Infrared Nanophotonics Using Low-Symmetry Materials

Anisotropy and Modal Hybridization in Infrared Nanophotonics Using Low-Symmetry Materials

Local Fluctuations in Cavity Control of Ferroelectricity

Dynamical mean-field study of a photon-mediated ferroelectric phase transition

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