Fingerprints of quantum spin ice in Raman scattering

Jianlong Fu, Jeffrey G. Rau, Michel J.P. Gingras, Natalia B. Perkins

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We develop a theory of the dynamical response of a minimal model of quantum spin ice (QSI) by means of inelastic light scattering. In particular, we are interested in the Raman response of the fractionalized U(1) spin liquid realized in the XXZ QSI.We show that the low-energy Raman intensity is dominated by spinon and gauge fluctuations. We find that the Raman response in the QSI state of that model appears only in the T 2g polarization channel. We show that the Raman intensity profile displays a broad continuum from the spinons and coupled spinon and gauge fluctuations, and a low-energy peak arising entirely from gauge fluctuations. Both features originate from the exotic interaction between photon and the fractionalized excitations of QSI. Our theoretical results suggest that inelastic Raman scattering can in principle serve as a promising experimental probe of the nature of a U(1) spin liquid in QSI.

Original languageEnglish (US)
Article number035136
JournalPhysical Review B
Volume96
Issue number3
DOIs
StatePublished - 2017

Bibliographical note

Funding Information:
NSF Grant No. PHY-1066293.

Fingerprint Dive into the research topics of 'Fingerprints of quantum spin ice in Raman scattering'. Together they form a unique fingerprint.

Cite this