Quantum phase transitions in the itinerant ferromagnet ZrZn2

M. Uhlarz; C. Pfleiderer; S. M. Hayden

doi:10.1016/j.physb.2005.01.324

Quantum phase transitions in the itinerant ferromagnet ZrZn₂

M. Uhlarz, C. Pfleiderer, S. M. Hayden

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We report a study of the pressure p, temperature T and magnetic field B phase diagram of ZrZn2, the most promising material to exhibit ferromagnetic quantum criticality. We find that the ordered ferromagnetic moment disappears discontinuously at pc=16.5 kbar. Thus, a tricritical point separates a line of first-order ferromagnetic transitions from second-order (continuous) transitions at higher temperature. We also identify two lines of transitions of the magnetization isotherms up to 12 T in the p-T plane where the derivative of the magnetization changes rapidly.

Original language	English
Pages (from-to)	1174-1176
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	359-361
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2005.01.324
State	Published - 30 Apr 2005
Externally published	Yes

Keywords

Itinerant ferromagnetism
Itinerant metamagnetism
Quantum critical

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10.1016/j.physb.2005.01.324

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abstract = "We report a study of the pressure p, temperature T and magnetic field B phase diagram of ZrZn2, the most promising material to exhibit ferromagnetic quantum criticality. We find that the ordered ferromagnetic moment disappears discontinuously at pc=16.5 kbar. Thus, a tricritical point separates a line of first-order ferromagnetic transitions from second-order (continuous) transitions at higher temperature. We also identify two lines of transitions of the magnetization isotherms up to 12 T in the p-T plane where the derivative of the magnetization changes rapidly.",

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AU - Uhlarz, M.

AU - Pfleiderer, C.

AU - Hayden, S. M.

PY - 2005/4/30

Y1 - 2005/4/30

N2 - We report a study of the pressure p, temperature T and magnetic field B phase diagram of ZrZn2, the most promising material to exhibit ferromagnetic quantum criticality. We find that the ordered ferromagnetic moment disappears discontinuously at pc=16.5 kbar. Thus, a tricritical point separates a line of first-order ferromagnetic transitions from second-order (continuous) transitions at higher temperature. We also identify two lines of transitions of the magnetization isotherms up to 12 T in the p-T plane where the derivative of the magnetization changes rapidly.

AB - We report a study of the pressure p, temperature T and magnetic field B phase diagram of ZrZn2, the most promising material to exhibit ferromagnetic quantum criticality. We find that the ordered ferromagnetic moment disappears discontinuously at pc=16.5 kbar. Thus, a tricritical point separates a line of first-order ferromagnetic transitions from second-order (continuous) transitions at higher temperature. We also identify two lines of transitions of the magnetization isotherms up to 12 T in the p-T plane where the derivative of the magnetization changes rapidly.

KW - Itinerant ferromagnetism

KW - Itinerant metamagnetism

KW - Quantum critical

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - SPEC. ISS.

ER -

Quantum phase transitions in the itinerant ferromagnet ZrZn₂

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Keywords

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