Suppressed Fluctuations as the Origin of the Static Magnetic Order in Strained Sr₂RuO₄

Autor(en)

Bongjae Kim, Sergii Khmelevskyi, Cesare Franchini, I. I. Mazin

Abstrakt

Combining first-principles density-functional calculations and Moriya's self-consistent renormalization theory, we explain the recently reported counterintuitive appearance of an ordered magnetic state in uniaxially strained Sr2RuO4 beyond the Lifshitz transition. We show that strain weakens the quantum spin fluctuations, which destroy the static order, more strongly than the tendency to magnetism. A different rate of decrease of the spin fluctuations vs magnetic stabilization energy promotes the onset of a static magnetic order beyond a critical strain.

Organisation(en)

Computergestützte Materialphysik

Externe Organisation(en)

Kunsan National University, Technische Universität Wien, Università di Bologna, George Mason University

Journal

Physical Review Letters

Band

130

Anzahl der Seiten

6

ISSN

0031-9007

DOI

https://doi.org/10.1103/PhysRevLett.130.026702

Publikationsdatum

01-2023

Peer-reviewed

Ja

ÖFOS 2012

103017 Magnetismus, 103033 Supraleitung, 103043 Computational Physics

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a2f4c537-c679-4e95-8748-fb0de1abf7c6