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Title: Tricritical wings and modulated magnetic phases in LaCrGe 3 under pressure

Abstract

Experimental and theoretical investigations on itinerant ferromagnetic systems under pressure have shown that ferromagnetic quantum criticality is avoided either by a change of the transition order, becoming of the first order at a tricritical point, or by the appearance of modulated magnetic phases. In the first case, the application of a magnetic field reveals a wing-structure phase diagram as seen in itinerant ferromagnets such as ZrZn 2 and UGe 2. Secondly, no tricritical wings have been observed so far. Here, we report on the discovery of wing-structure as well as the appearance of modulated magnetic phases in the temperature-pressure-magnetic field phase diagram of LaCrGe 3. Our investigation of LaCrGe 3 reveals a double-wing structure indicating strong similarities with ZrZn 2 and UGe 2. Unlike these simpler systems, LaCrGe 3 also shows modulated magnetic phases similar to CeRuPO. Our finding provides an example of an additional possibility for the phase diagram of metallic quantum ferromagnets.

Authors:
 [1];  [1];  [1];  [2]
  1. Ames Lab. and Iowa State Univ., Ames, IA (United States); Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy
  2. Ames Lab. and Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1394808
Report Number(s):
IS-J-9267
Journal ID: ISSN 2041-1723; PII: 699
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ferromagnetism; magnetic properties and materials; phase transitions and critical phenomena

Citation Formats

Kaluarachchi, Udhara S., Bud’ko, Sergey L., Canfield, Paul C., and Taufour, Valentin. Tricritical wings and modulated magnetic phases in LaCrGe3 under pressure. United States: N. p., 2017. Web. doi:10.1038/s41467-017-00699-x.
Kaluarachchi, Udhara S., Bud’ko, Sergey L., Canfield, Paul C., & Taufour, Valentin. Tricritical wings and modulated magnetic phases in LaCrGe3 under pressure. United States. doi:10.1038/s41467-017-00699-x.
Kaluarachchi, Udhara S., Bud’ko, Sergey L., Canfield, Paul C., and Taufour, Valentin. Fri . "Tricritical wings and modulated magnetic phases in LaCrGe3 under pressure". United States. doi:10.1038/s41467-017-00699-x. https://www.osti.gov/servlets/purl/1394808.
@article{osti_1394808,
title = {Tricritical wings and modulated magnetic phases in LaCrGe3 under pressure},
author = {Kaluarachchi, Udhara S. and Bud’ko, Sergey L. and Canfield, Paul C. and Taufour, Valentin},
abstractNote = {Experimental and theoretical investigations on itinerant ferromagnetic systems under pressure have shown that ferromagnetic quantum criticality is avoided either by a change of the transition order, becoming of the first order at a tricritical point, or by the appearance of modulated magnetic phases. In the first case, the application of a magnetic field reveals a wing-structure phase diagram as seen in itinerant ferromagnets such as ZrZn2 and UGe2. Secondly, no tricritical wings have been observed so far. Here, we report on the discovery of wing-structure as well as the appearance of modulated magnetic phases in the temperature-pressure-magnetic field phase diagram of LaCrGe3. Our investigation of LaCrGe3 reveals a double-wing structure indicating strong similarities with ZrZn2 and UGe2. Unlike these simpler systems, LaCrGe3 also shows modulated magnetic phases similar to CeRuPO. Our finding provides an example of an additional possibility for the phase diagram of metallic quantum ferromagnets.},
doi = {10.1038/s41467-017-00699-x},
journal = {Nature Communications},
number = 1,
volume = 8,
place = {United States},
year = {2017},
month = {9}
}

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Cited by: 9 works
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