Abstract

We study the influence of spinless impurities on a frustrated magnet featuring a spin-density wave (stripe) phase by means of Monte Carlo simulations. We demonstrate that the interplay between the impurities and an order parameter that breaks a real-space symmetry triggers the emergence of a random-field mechanism which destroys the stripe-ordered phase. Importantly, the strength of the emerging random fields can be tuned by the repulsion between the impurity atoms; they vanish for perfect anticorrelations between neighboring impurities. This provides a way of controlling the phase diagram of a many-particle system. In addition, we also investigate the effects of the impurities on the character of the phase transitions between the stripe-ordered, ferromagnetic, and paramagnetic phases.

Department(s)

Physics

Research Center/Lab(s)

Center for High Performance Computing Research

Comments

T.V. is supported in part by the NSF under Grants No. PHY-1125915 and No. DMR- 1506152.

International Standard Serial Number (ISSN)

2469-9950; 2469-9969

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2018 American Physical Society (APS), All rights reserved.

Publication Date

01 Jul 2018

Download

Full Text Link

Included in

Physics Commons

Share

 
COinS