Shift photovoltaic current and magnetically induced bulk photocurrent in piezoelectric sillenite crystals

Burger, Amy; Gao, Lingyuan; Agarwal, Radhe; Aprelev, Alexey; Spanier, Jonathan E.; Rappe, Andrew M.; Fridkin, V. M.

doi:10.1103/physrevb.102.081113

Cited by 25 publications

(16 citation statements)

References 11 publications

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“…Ref. 46 and, more recently, by Burger et al 51,52 for Bi 12 GeO 20 and Bi 12 SiO 20 . Their analysis, however, is based on the assumption that the shift mechanism does not contribute to the photo Hall current ("j sh describes coherence between wave packets rather than a transport process", see above Eq.…”

Section: Summary and Discussionmentioning

confidence: 94%

Quantum Kinetics of the Magneto Photo Galvanic Effect

Hornung,

von Baltz

2020

Preprint

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By using the Keldysh-technique we derive a set of quasiclassical equations for the shift-and ballistic-photogalvanic effects for a system of Bloch-electrons in external electric and magnetic fields. Explicit results are presented for the photogalvanic current for linear and circular polarized light and a magnetic field. The basic equations are analogous to the Semiconductor-Bloch-Equations and describe the electrical transport in noncentrosymmetric crystals. Our approach may be useful for the development of novel ferroelectric solar cell materials and Weyl-semimetals, in addition, we disprove existing statements, that the shift-photogalvanic effect does not contribute to the photo Hall current.

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Section: Summary and Discussionmentioning

confidence: 94%

Quantum Kinetics of the Magneto Photo Galvanic Effect

Hornung,

von Baltz

2020

Preprint

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“…In addition, it has been shown that time-reversal (T ) symmetry breaking may enhance the photogalvanic effect [6,7]. Indeed, paritybreaking magnets are expected to be tunable photo-electric converters due to the switchable magnetic order [8,9].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear optical responses in noncentrosymmetric superconductors

Tanaka¹,

Watanabe²,

Yanase³

2022

Preprint

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The unique nonreciprocal responses of superconductors, which stem from the Cooper pairs' quantum condensation, have been attracting attention. Recently, theories of the second-order nonlinear response in noncentrosymmetric superconductors were formulated based on the Bogoliubov-de Gennes theory. In this paper, we study the mechanism and condition for second-order optical responses of time-reversal symmetric superconductors. The numerical results show the characteristic photocurrent and second harmonic generation in the superconducting state. However, the superconductivity-induced nonlinear optical responses disappear under some conditions on pair potential. We show that the coexistence of intraband and interband pairing is necessary for the second-order superconducting optical responses. In addition, the superconducting Berry curvature factor, which is related to a component of Berry curvature in the superconducting state, is essential for the nonlinear responses. Thus, we derived the microscopic conditions where the superconducting nonlinear response appears.

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“…Since the bulk photocurrent performance is influenced by the electronic property of materials, the realization of a novel type of photo-electric converter is one of the strong motivations for materials science. Potential candidate systems are topological materials [2,6] and parity-violating magnets [7,8]. In the former systems, the photocurrent response is enhanced by the nontrivial quantum geometry in the electronic band structure, while the latter systems enable a tunable photocurrent response due to the good controllability of magnetic order.…”

Section: Introductionmentioning

confidence: 99%

Nonreciprocal optical response in parity-breaking superconductors

Watanabe,

Daido,

Yanase

2021

Preprint

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Superconductivity, an emergence of a macroscopic quantum state, gives rise to unique electromagnetic responses leading to perfect shielding of magnetic field and zero electrical resistance. In this paper, we propose that superconductors with the space-inversion symmetry breaking host giant nonreciprocal optical phenomena, such as photocurrent generation and second harmonic generation. The nonreciprocal optical responses show divergent behaviors in the low-frequency regime and originate from two-fold indicators unique to parity-breaking superconductors, namely, the nonreciprocal superfluid density and the Berry curvature derivative. Furthermore, the mechanism and frequency dependence are closely tied to the preserved temporal symmetry in the superconductor. The relation is useful for probing the space-time structure of the superconducting symmetry. The indicators characterize the low-frequency property of nonreciprocal optical responses and hence quantify the performance of superconductors in nonreciprocal optics.

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Shift photovoltaic current and magnetically induced bulk photocurrent in piezoelectric sillenite crystals

Cited by 25 publications

References 11 publications

Quantum Kinetics of the Magneto Photo Galvanic Effect

Quantum Kinetics of the Magneto Photo Galvanic Effect

Nonlinear optical responses in noncentrosymmetric superconductors

Nonreciprocal optical response in parity-breaking superconductors

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