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Title: Field Angle Tuned Metamagnetism and Lifschitz Transitions in UPt 3

Abstract

Strongly correlated electronic systems can harbor a rich variety of quantum spin states. Understanding and controlling such spin states in quantum materials is of great current interest. Focusing on the simple binary system UPt 3 with ultrasound (US) as a probe we identify clear signatures in field sweeps demarkating new high field spin phases. Magnetostriction (MS) measurements performed up to 65 T also show signatures at the same fields confirming these phase transitions. At the very lowest temperatures (<200 mK) we also observe magneto-acoustic quantum oscillations which for θ = 90° (B||c-axis) and vicinity abruptly become very strong in the 24.8–30 T range. High resolution magnetization measurements for this same angle reveal a continuous variation of the magnetization implying the subtle nature of the implied transitions. With B rotated away from the c-axis, the US signatures occur at nearly the same field. These transitions merge with the separate sequence of the well known metamagnetic transition which commences at 20 T for θ = 0° but moves to higher fields as 1/cosθ. This merge, suggesting a tricritical behavior, occurs at θ ≈ 51° from the ab-plane. This is an unique off-symmetry angle where the length change along the c-axis is preciselymore » zero due to the anisotropic nature of MS in UPt 3 for all magnetic field values.« less

Authors:
 [1];  [1];  [1]; ORCiD logo [2]; ORCiD logo [2]
  1. Univ. of Virginia, Charlottesville, VA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1532710
Report Number(s):
LA-UR-18-31036
Journal ID: ISSN 2045-2322
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; High Magnetic Field Science

Citation Formats

Shivaram, B. S., Holleis, Ludwig, Ulrich, V. W., Singleton, John, and Jaime, Marcelo. Field Angle Tuned Metamagnetism and Lifschitz Transitions in UPt3. United States: N. p., 2019. Web. doi:10.1038/s41598-019-44602-8.
Shivaram, B. S., Holleis, Ludwig, Ulrich, V. W., Singleton, John, & Jaime, Marcelo. Field Angle Tuned Metamagnetism and Lifschitz Transitions in UPt3. United States. doi:10.1038/s41598-019-44602-8.
Shivaram, B. S., Holleis, Ludwig, Ulrich, V. W., Singleton, John, and Jaime, Marcelo. Mon . "Field Angle Tuned Metamagnetism and Lifschitz Transitions in UPt3". United States. doi:10.1038/s41598-019-44602-8. https://www.osti.gov/servlets/purl/1532710.
@article{osti_1532710,
title = {Field Angle Tuned Metamagnetism and Lifschitz Transitions in UPt3},
author = {Shivaram, B. S. and Holleis, Ludwig and Ulrich, V. W. and Singleton, John and Jaime, Marcelo},
abstractNote = {Strongly correlated electronic systems can harbor a rich variety of quantum spin states. Understanding and controlling such spin states in quantum materials is of great current interest. Focusing on the simple binary system UPt3 with ultrasound (US) as a probe we identify clear signatures in field sweeps demarkating new high field spin phases. Magnetostriction (MS) measurements performed up to 65 T also show signatures at the same fields confirming these phase transitions. At the very lowest temperatures (<200 mK) we also observe magneto-acoustic quantum oscillations which for θ = 90° (B||c-axis) and vicinity abruptly become very strong in the 24.8–30 T range. High resolution magnetization measurements for this same angle reveal a continuous variation of the magnetization implying the subtle nature of the implied transitions. With B rotated away from the c-axis, the US signatures occur at nearly the same field. These transitions merge with the separate sequence of the well known metamagnetic transition which commences at 20 T for θ = 0° but moves to higher fields as 1/cosθ. This merge, suggesting a tricritical behavior, occurs at θ ≈ 51° from the ab-plane. This is an unique off-symmetry angle where the length change along the c-axis is precisely zero due to the anisotropic nature of MS in UPt3 for all magnetic field values.},
doi = {10.1038/s41598-019-44602-8},
journal = {Scientific Reports},
number = 1,
volume = 9,
place = {United States},
year = {2019},
month = {6}
}

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