English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Temperature-pressure phase diagram of CeCoSi: Pressure-induced high-temperature phase

Lengyel, E., Nicklas, M., Caroca-Canales, N., & Geibel, C. (2013). Temperature-pressure phase diagram of CeCoSi: Pressure-induced high-temperature phase. Physical Review B, 88(15): 155137, pp. 155137-1-155137-6. doi:10.1103/PhysRevB.88.155137.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-1E2E-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-F6E6-7
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Lengyel, E.1, Author              
Nicklas, M.2, Author              
Caroca-Canales, N.1, Author              
Geibel, C.3, Author              
Affiliations:
1Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
2Michael Nicklas, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863472              
3Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863465              

Content

show
hide
Free keywords: -
 Abstract: We have studied the temperature-pressure phase diagram of CeCoSi by electrical-resistivity experiments under pressure. Our measurements revealed a very unusual phase diagram. While at low pressures no dramatic changes and only a slight shift of the Neel temperature T-N (approximate to 10 K) are observed, at about 1.45 GPa a sharp and large anomaly, indicative of the opening of a spin-density wave gap, appears at a comparatively high temperature T-S approximate to 38 K. With further increasing pressure, T-S shifts rapidly to low temperatures and disappears at about 2.15 GPa, likely continuously in a quantum critical point, but without evidence for superconductivity. Even more surprisingly, we observed a clear shift of T-S to higher temperatures upon applying a magnetic field. We discuss two possible origins for T-S : magnetic ordering of Co and a metaorbital type of transition of Ce.

Details

show
hide
Language(s): eng - English
 Dates: 2013-10-30
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 671340
ISI: 000326273000002
DOI: 10.1103/PhysRevB.88.155137
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review B
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 88 (15) Sequence Number: 155137 Start / End Page: 155137-1 - 155137-6 Identifier: ISSN: 1098-0121