Interplay of ferromagnetism and spin-orbit coupling in 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Sr</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mi>Ru</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>10</mml:mn></mml:msub></mml:mrow></mml:math>

Benedičič, Izidor; Naritsuka, Masahiro; Rhodes, Luke C.; Trainer, Christopher; Nanao, Yoshiko; Naden, Aaron B.; Fittipaldi, R.; Granata, V.; Lettieri, Mariateresa; Vecchione, A.; Wahl, Peter

doi:10.1103/physrevb.106.l241107

Cited by 2 publications

(6 citation statements)

References 36 publications

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“…Several characteristic scattering vectors are observed that are consistent with previous work 29 . Specifically, the three rings centered at q = 0 with q ~1/2 can be related to bands of minority-spin character 29,37 . We extract the positions of two of these rings, red and green circles, corresponding to intra-band scattering, while the middle ring corresponds to inter-band scattering between the two.…”

Section: Resultssupporting

confidence: 91%

“…3). These are in good qualitative agreement with calculations of the expected spin-minority Fermi surfaces 29,37 . Around the corners of the tetragonal Brillouin zone, we observe a complex set of additional intertwined Fermi pockets.…”

Section: Resultssupporting

confidence: 86%

“…Figure 3b shows the Fourier transform gðV; qÞ of a g(V, r) map in zero magnetic field measured just below the Fermi level at V = − 1.4 mV. Several characteristic scattering vectors are observed that are consistent with previous work 29 . Specifically, the three rings centered at q = 0 with q ~1/2 can be related to bands of minority-spin character 29,37 .…”

Section: Resultssupporting

confidence: 86%

“…Surface electronic structure Due to the layered structure of the strontium ruthenates, cleavage results in atomically clean and flat SrO-terminated surfaces 29,[31][32][33][34][35] . Figure 1c shows such a SrO surface of Sr 4 Ru 3 O 10 .…”

Section: Resultsmentioning

confidence: 99%

“…For magnetic fields applied in the ab-plane, T * decreases, reaching 0 K at ~2.5 T 26 . A link between the metamagnetic properties and VHss in proximity of the Fermi energy has been postulated 27 , however direct experimental evidence for this is so far lacking [28][29][30] .…”

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confidence: 99%

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Spin-orbit coupling induced Van Hove singularity in proximity to a Lifshitz transition in Sr4Ru3O10

Marques,

Murgatroyd,

Fittipaldi

et al. 2024

npj Quantum Mater.

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Van Hove singularities (VHss) in the vicinity of the Fermi energy often play a dramatic role in the physics of strongly correlated electron materials. The divergence of the density of states generated by VHss can trigger the emergence of phases such as superconductivity, ferromagnetism, metamagnetism, and density wave orders. A detailed understanding of the electronic structure of these VHss is therefore essential for an accurate description of such instabilities. Here, we study the low-energy electronic structure of the trilayer strontium ruthenate Sr4Ru3O10, identifying a rich hierarchy of VHss using angle-resolved photoemission spectroscopy and millikelvin scanning tunneling microscopy. Comparison of k-resolved electron spectroscopy and quasiparticle interference allows us to determine the structure of the VHss and demonstrate the crucial role of spin-orbit coupling in shaping them. We use this to develop a minimal model from which we identify a mechanism for driving a field-induced Lifshitz transition in ferromagnetic metals.

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Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 86%