Converse effect of pressure on the quadrupolar and magnetic transition in Ce3Pd20Si6

J. Larrea; A. M. Strydom; V. Martelli; A. Prokofiev; K. A. Lorenzer; H. M. Rønnow; S. Paschen

doi:10.1103/PhysRevB.93.125121

Converse effect of pressure on the quadrupolar and magnetic transition in Ce3Pd20Si6

J. Larrea, A. M. Strydom, V. Martelli, A. Prokofiev, K. A. Lorenzer, H. M. Rønnow, S. Paschen

Physics

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

1 Citation (Scopus)

Abstract

The heavy fermion compound Ce3Pd20Si6 displays unconventional quantum criticality as the lower of two consecutive phase transitions is fully suppressed by magnetic field. Here we report on the effects of pressure as an additional tuning parameter. Specific heat and electrical resistivity measurements reveal a converse effect of pressure on the two transitions, leading to the merging of both transitions at 6.2 kbars. The field-induced quantum criticality is robust under pressure tuning. We rationalize our findings within an extended version of the global phase diagram for antiferromagnetic heavy fermion quantum criticality.

Original language	English
Article number	125121
Journal	Physical Review B
Volume	93
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevB.93.125121
Publication status	Published - 14 Mar 2016

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Converse effect of pressure on the quadrupolar and magnetic transition in Ce3Pd20Si6",

abstract = "The heavy fermion compound Ce3Pd20Si6 displays unconventional quantum criticality as the lower of two consecutive phase transitions is fully suppressed by magnetic field. Here we report on the effects of pressure as an additional tuning parameter. Specific heat and electrical resistivity measurements reveal a converse effect of pressure on the two transitions, leading to the merging of both transitions at 6.2 kbars. The field-induced quantum criticality is robust under pressure tuning. We rationalize our findings within an extended version of the global phase diagram for antiferromagnetic heavy fermion quantum criticality.",

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AU - Larrea, J.

AU - Strydom, A. M.

AU - Martelli, V.

AU - Prokofiev, A.

AU - Lorenzer, K. A.

AU - Rønnow, H. M.

AU - Paschen, S.

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N2 - The heavy fermion compound Ce3Pd20Si6 displays unconventional quantum criticality as the lower of two consecutive phase transitions is fully suppressed by magnetic field. Here we report on the effects of pressure as an additional tuning parameter. Specific heat and electrical resistivity measurements reveal a converse effect of pressure on the two transitions, leading to the merging of both transitions at 6.2 kbars. The field-induced quantum criticality is robust under pressure tuning. We rationalize our findings within an extended version of the global phase diagram for antiferromagnetic heavy fermion quantum criticality.

AB - The heavy fermion compound Ce3Pd20Si6 displays unconventional quantum criticality as the lower of two consecutive phase transitions is fully suppressed by magnetic field. Here we report on the effects of pressure as an additional tuning parameter. Specific heat and electrical resistivity measurements reveal a converse effect of pressure on the two transitions, leading to the merging of both transitions at 6.2 kbars. The field-induced quantum criticality is robust under pressure tuning. We rationalize our findings within an extended version of the global phase diagram for antiferromagnetic heavy fermion quantum criticality.

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Converse effect of pressure on the quadrupolar and magnetic transition in Ce3Pd20Si6

Abstract

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