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Title: Quantum tricritical point in the temperature-pressure-magnetic field phase diagram of CeTiGe 3

Journal Article · · Physical Review B
 [1];  [2];  [1];  [1]
  1. Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
  2. Ames Lab., Ames, IA (United States)

We report the temperature-pressure-magnetic eld phase diagram of the ferromagnetic Kondolattice CeTiGe3 determined by means of electrical resistivity measurements. Measurements up to ~5.8GPa reveal a rich phase diagram with multiple phase transitions. At ambient pressure, CeTiGe3 orders ferromagnetically at TC =14 K. Application of pressure suppresses TC, but a pressure induced ferromagnetic quantum criticality is avoided by the appearance of two new successive transitions for p>4.1GPa that are probably antiferromagnetic in nature. These two transitions are suppressed under pressure, with the lower temperature phase being fully suppressed above 5.3GPa. The critical pressures for the presumed quantum phase transitions are p1≅4.1GPa and p2≅5.3GPa. Above 4.1GPa, application of magnetic eld shows a tricritical point evolving into a wing structure phase with a quantum tricritical point at 2.8T at 5.4GPa, where the rst order antiferromagneticferromagnetic transition changes into the second order antiferromagnetic-ferromagnetic transition.

Research Organization:
Ames Lab., Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1417995
Alternate ID(s):
OSTI ID: 1417699
Report Number(s):
IS-J-9560; PRBMDO; TRN: US1801228
Journal Information:
Physical Review B, Vol. 97, Issue 4; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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Cited By (4)

Competing magnetic correlations across the ferromagnetic quantum critical point in the Kondo system CeTi 1 x V x Ge 3 : V 51 NMR as a local probe journal October 2019
Ab initio study of superconductivity and inhomogeneity in a Hg-based cuprate superconductor journal January 2020
Emergent Universality in a Quantum Tricritical Dicke Model journal May 2019
Ab Initio Study on Superconductivity and Inhomogeneity in Hg-based Cuprate Superconductor text January 2019

Figures / Tables (10)


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