eprintid: 9476
rev_number: 51
eprint_status: archive
userid: 599
dir: disk0/00/00/94/76
datestamp: 2008-10-13 09:11:36
lastmod: 2021-10-04 01:01:21
status_changed: 2008-10-13 09:11:36
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Smith, RP
creators_name: Kusmartseva, A
creators_name: Ko, YTC
creators_name: Saxena, SS
creators_name: Akrap, A
creators_name: Forro, L
creators_name: Laad, M
creators_name: Weller, TE
creators_name: Ellerby, M
creators_name: Skipper, NT
title: Pressure dependence of the superconducting transition temperature in C6Yb and C6Ca
subjects: 11000
divisions: UCL
divisions: B04
divisions: C06
divisions: F60
keywords: GRAPHITE-INTERCALATION COMPOUNDS, STATE
abstract: We have studied the evolution, with hydrostatic pressure, of the recently-discovered superconductivity in the graphite intercalation compounds C6Yb and C6Ca. We present pressure-temperature phase diagrams, for both superconductors, established by electrical transport and magnetization measurements. In the range 0-1.2 GPa the superconducting transition temperature increases linearly with pressure in both materials with dT(c)/dP=+0.37 +/- 0.01 and +0.50 +/- 0.05 K/GPa for C6Yb and C6Ca, respectively. The transition temperature in C6Yb, which has been measured up to 2.3 GPa, reaches a peak at around 1.8 GPa and then starts to drop. We also discuss how this pressure dependence may be explained within a plasmon pairing mechanism. (c) 2006 American Institute of Physics.
date: 2006-07
date_type: published
publisher: AMER PHYSICAL SOC
vfaculties: VMPS
rae2008: 19
oa_status: green
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_batch
elements_source: Web of Science
elements_id: 74639
doi: 10.1103/PhysRevB.74.024505
lyricists_name: Ellerby, Mark
lyricists_name: Skipper, Neal
lyricists_id: MELLE30
lyricists_id: NTSKI64
full_text_status: public
publication: PHYS REV B
volume: 74
number: 2
article_number: 024505
pagerange: ? - ?
refereed: TRUE
issn: 1098-0121
citation:        Smith, RP;    Kusmartseva, A;    Ko, YTC;    Saxena, SS;    Akrap, A;    Forro, L;    Laad, M;             ... Skipper, NT; + view all <#>        Smith, RP;  Kusmartseva, A;  Ko, YTC;  Saxena, SS;  Akrap, A;  Forro, L;  Laad, M;  Weller, TE;  Ellerby, M;  Skipper, NT;   - view fewer <#>    (2006)    Pressure dependence of the superconducting transition temperature in C6Yb and C6Ca.                   PHYS REV B , 74  (2)    , Article 024505.  10.1103/PhysRevB.74.024505 <https://doi.org/10.1103/PhysRevB.74.024505>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/9476/1/9476.pdf