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Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

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Field-Induced Lifshitz Transition without Metamagnetism in CeIrIn(5).

D Aoki^1,2,3, G Seyfarth^4,5, A Pourret^2,3

¹Institute for Materials Research, Tohoku University, Oarai, Ibaraki 311-1313, Japan.

Physical Review Letters

|February 6, 2016

Summary

This summary is machine-generated.

High magnetic field studies of CeIrIn5 reveal a field-induced Lifshitz transition, not a metamagnetic transition, evidenced by changes in thermoelectric power and de Haas-van Alphen oscillations.

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Area of Science:

Condensed Matter Physics
Quantum Materials Science

Background:

CeIrIn5 is a correlated electron system exhibiting complex magnetic behaviors.
Previous studies suggested a metamagnetic transition around 28 Tesla (T).

Purpose of the Study:

To investigate the electronic and magnetic properties of CeIrIn5 under high magnetic fields.
To clarify the nature of the transition occurring around 28 T.

Main Methods:

High magnetic field measurements up to 28 T.
Techniques included magnetic torque, thermoelectric power, magnetization, and de Haas-van Alphen effect.
Analysis of quantum oscillations and transport properties.

Main Results:

Thermoelectric power showed maxima at 28 T and 32 T.
A new low de Haas-van Alphen frequency with enhanced effective mass appeared above 28 T.
The highest frequency observed at low field vanished above 28 T, indicating a Lifshitz transition.
Longitudinal magnetization measurements up to 33 T showed no anomaly, ruling out a metamagnetic transition.

Conclusions:

The observed phenomena in CeIrIn5 are consistent with a field-induced Lifshitz transition.
A metamagnetic transition at 28 T is definitively ruled out by magnetization data.