Erratum: Limits to magnetic quantum criticality from nuclear spins [Phys. Rev. B 
<b>103</b>
, 064405 (2021)]

Eisenlohr, Heike; Vojta, Matthias

doi:10.1103/physrevb.103.219902

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…Consider the low temperature effective Hamiltonian of LiHoF 4 given in equation (88) of the main text. The truncation of the LiHoF 4 system, and the low energy electronuclear modes present in the system, have been dealt with in detail elsewhere 15,16,38,60 ; here we present details relevant to the calculation of the magnon-polariton propagator.…”

Section: Appendix C the Lihof4 Systemmentioning

confidence: 99%

Theory of magnon-polaritons in quantum Ising materials

Mckenzie¹,

Libersky²,

Silevitch³

et al. 2022

Preprint

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We present a theory of magnon-polaritons in quantum Ising materials, and develop a formalism describing the coupling between light and matter as an Ising system is tuned through its quantum critical point. The theory is applied to Ising materials having multilevel single-site Hamiltonians, in which multiple magnon modes are present, such as the insulating Ising magnet LiHoF4. We find that the magnon-photon coupling strengths may be tuned by the applied transverse field, with the coupling between the soft mode present in the quantum Ising material and a photonic resonator mode diverging at the quantum critical point of the material. A fixed system of spins will not exhibit the diamagnetic response expected when light is coupled to mobile spins or atoms. Without the diamagnetic response, one expects a divergent magnon-photon coupling strength to lead to a superradiant quantum phase transition. However, this neglects the effects of damping and decoherence present in any real system. We show that damping and decoherence may block the superradiant quantum phase transition, and lead to weak coupling between the soft magnon mode and the resonator mode. The results of the theory are applied to experimental data on the model system LiHoF4 in a microwave resonator.

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Section: Appendix C the Lihof4 Systemmentioning

confidence: 99%

Theory of magnon-polaritons in quantum Ising materials

Mckenzie¹,

Libersky²,

Silevitch³

et al. 2022

Preprint

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“…A importância da pesquisa em nanomagnetismo é que efeitos quânticos representam novos papéis originando diferentes funcionalidades. Por exemplo, as interações magnéticas são drasticamente diferentes para sistemas nanoestruturados quando comparados aos respectivos bulk [3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionunclassified

Estudo teórico de nanoestruturas magnéticas em superfícies metálicas

Igarashi¹

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Isto foi muito importante para mim, pois na USP tive oportunidades de conhecer muitas coisas novas (não apenas na física), que serão muito boas para a minha formação profissional e pessoal. Também agradeço a Profa. Helena por sua paciência, amizade, ensinamento e motivação nestes anos de estudo. Em especial, agradeço a Profa. Ângela B. Klautau pela sua paciência comigo no ensinamento do método RS-LMTO-ASA, me possibilitando a realização deste trabalho. Também agradeço a Profa. Ângela pela sua hospitalidade quando estive na Universidade Federal do Pará. A Profa. Marilia Caldas que me recebeu no grupo Nanomol.Aos professores da banca examinadora pela dedicação na tarefa de avaliar o conteúdo do texto e oferecer suas valiosas contribuições.

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Erratum: Limits to magnetic quantum criticality from nuclear spins [Phys. Rev. B 103 , 064405 (2021)]

Cited by 2 publications

References 6 publications

Theory of magnon-polaritons in quantum Ising materials

Theory of magnon-polaritons in quantum Ising materials

Estudo teórico de nanoestruturas magnéticas em superfícies metálicas

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