Unveiling unconventional magnetism at the surface of Sr2RuO4

Fittipaldi, R.; Hartmann, Roman; Mercaldo, Maria Teresa; Komori, Sachio; Bjørlig, Anders V.; Kyung, Wonshik; Yasui, Yoshiaki; Miyoshi, Takushi; Olthof, L. A. B. Olde; Garciá, Carla M. Palomares; Granata, V.; Keren, Itai; Higemoto, Wataru; Suter, A.; Prokscha, T.; Romano, Alfonso; Noce, Canio; Kim, C.; Maeno, Y.; Scheer, Elke; Kalisky, Beena; Robinson, Jason W. A.; Cuoco, Mario; Salman, Z.; Vecchione, A.; Bernardo, Angelo Di

doi:10.1038/s41467-021-26020-5

Cited by 25 publications

(13 citation statements)

References 47 publications

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“…The field-induced charge order is at a wave vector q = (0.5, 0.5), which connects opposite edges of the Brillouin zone corresponding to the orthorhombic unit cell. We note that the recently proposed loop-current state in the surface layer of Sr 2 RuO 4 [34] would be expected to result in a similar stripe-like pattern in magnetic field. While this magnetic field-induced charge order seemingly could explain anisotropic transport signatures found near fields around the metamagnetic phase transitions in the bulk Sr 3 Ru 2 O 7 [1], it occurs in a different crystallographic direction: we observe this symmetry breaking between the [11] and [1 1] directions of the tetragonal unit cell, whereas the anisotropic transport and field-induced magnetic order observed in neutron scattering are along the [10] and [01] directions.…”

Section: Discussionsupporting

confidence: 55%

Atomic-scale imaging of emergent order at a magnetic-field-induced Lifshitz transition

Marques¹,

Rhodes²,

Benedičič³

et al. 2022

Preprint

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The phenomenology and radical changes seen in materials properties traversing a quantum phase transition has captivated condensed matter research over past decades. Strong electronic correlations lead to novel electronic ground states, including magnetic order, nematicity and unconventional superconductivity. To provide a microscopic model for these requires detailed knowledge of the electronic structure in the vicinity of the Fermi energy, promising a complete understanding of the physics of the quantum critical point. Here, we demonstrate such a measurement at the surface of Sr 3 Ru 2 O 7 . Our results show that even in zero field the electronic structure is strongly C 2 symmetric and that a magnetic-field drives both a Lifshitz transition and induces a charge-stripe order. We track the changes of the electronic structure as a function of field via quasi-particle interference imaging at ultra-low temperatures. Our results provide a complete microscopic picture of the field-induced changes of the electronic structure across the Lifshitz transition.

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Section: Discussionsupporting

confidence: 55%

Atomic-scale imaging of emergent order at a magnetic-field-induced Lifshitz transition

Marques¹,

Rhodes²,

Benedičič³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The field-induced charge order is at a wave vector q = (0.5,0.5), which connects opposite edges of the Brillouin zone corresponding to the orthorhombic unit cell. We note that the recently proposed loop current state in the surface layer of Sr 2 RuO 4 (36) would be expected to result in a similar stripe-like pattern in magnetic field. While the magneticfield-induced charge order reported here seemingly could explain anisotropic transport signatures found near fields around the metamagnetic phase transitions in the bulk Sr 3 Ru 2 O 7 (1), it occurs in a different crystallographic direction: We observe this symmetry breaking between the [11] and [1 1 ̄ ] directions of the tetragonal unit cell, whereas the anisotropic transport and field-induced magneticorder observed in neutron scattering are along the [10] and [01] directions (1,10).…”

Section: Discussionsupporting

confidence: 58%

Atomic-scale imaging of emergent order at a magnetic field–induced Lifshitz transition

et al. 2022

View full text Add to dashboard Cite

The phenomenology and radical changes seen in material properties traversing a quantum phase transition have captivated condensed matter research over the past decades. Strong electronic correlations lead to exotic electronic ground states, including magnetic order, nematicity, and unconventional superconductivity. Providing a microscopic model for these requires detailed knowledge of the electronic structure in the vicinity of the Fermi energy, promising a complete understanding of the physics of the quantum critical point. Here, we demonstrate such a measurement at the surface of Sr 3 Ru 2 O 7 . Our results show that, even in zero field, the electronic structure is strongly C 2 symmetric and that a magnetic field drives a Lifshitz transition and induces a charge-stripe order. We track the changes of the electronic structure as a function of field via quasiparticle interference imaging at ultralow temperatures. Our results provide a complete microscopic picture of the field-induced changes of the electronic structure across the Lifshitz transition.

show abstract

“…This implies that the chargeordered state displays not only bond distortions, but also orbital current loops (see Fig. 1a) [27][28][29][30].…”

mentioning

confidence: 99%

Tunable nodal kagome superconductivity in charge ordered RbV3Sb5

Guguchia¹,

Mielke²,

Das³

et al. 2022

Preprint

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Unveiling unconventional magnetism at the surface of Sr2RuO4

Cited by 25 publications

References 47 publications

Atomic-scale imaging of emergent order at a magnetic-field-induced Lifshitz transition

Atomic-scale imaging of emergent order at a magnetic-field-induced Lifshitz transition

Atomic-scale imaging of emergent order at a magnetic field–induced Lifshitz transition

Tunable nodal kagome superconductivity in charge ordered RbV3Sb5

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