κ-(BEDT-TTF)₂Cu[N(CN)₂]Br

organic · Pnma · cuprate_123

ambient SCunconventionalcompeting orderdisputed

Tc max

12.5 K

Tc ambient

12.0 K

arXiv year

1994

Papers

Tc exp.

12.5 K

Tc theo.

—

Evidence

experimental

Tc max measured at arXiv:2001.05389, confirmed by 2 papers

Evidence (41 records from 35 papers)

the flat columns above are aggregates — each line here is one paper's claim

Tc (K)	P (GPa)	Sample	Method	Pairing	Year	Tier	Paper
12.5	—	—	—	—	2020	T1	2001.05389
12.5	ambient	single_crystal	specific_heat	—	2000	T1	DOI: 10.1103/PhysRevB.61.4346
12.2	ambient	single_crystal	resistivity, susceptibility	—	2023	T1	2302.02604
12.0	—	polycrystal	muSR	—	2011	T1	DOI: 10.1103/PhysRevB.83.024504
12.0	—	single_crystal	resistivity	—	1998	T1	DOI: 10.1103/PhysRevB.57.R5610
11.9	—	single_crystal	resistivity, susceptibility	d-wave	2023	T1	DOI: 10.1103/PhysRevMaterials.7.124803
11.9	—	single_crystal	resistivity	d-wave	2009	T1	DOI: 10.1103/PhysRevB.80.220511
11.9	—	—	—	d-wave	2009	T1	0905.2609
11.9	ambient	single_crystal	—	—	2007	T1	DOI: 10.1103/PhysRevB.76.054509
11.9	ambient	—	susceptibility	—	2004	T2	cond-mat/0408674
11.8	ambient	—	susceptibility	—	2004	T2	cond-mat/0408674
11.6	ambient	—	susceptibility	—	2004	T2	cond-mat/0408674
11.6	ambient	single_crystal	specific_heat, susceptibility	d-wave	1997	T1	DOI: 10.1103/PhysRevB.55.R8670
11.5	ambient	single_crystal	susceptibility	—	2020	T1	DOI: 10.1103/PhysRevResearch.2.043008
11.5	ambient	single_crystal	specific_heat	—	1999	T1	cond-mat/9912031
11.5	—	single_crystal	resistivity	—	1998	T1	DOI: 10.1103/PhysRevB.57.R5610
11.4	—	single_crystal	susceptibility	d-wave	2014	T1	DOI: 10.1103/PhysRevB.89.165141
11.4	—	single_crystal	susceptibility	—	2014	T1	1405.0067
11.3	—	single_crystal	specific_heat	d-wave	2021	T1	DOI: 10.1103/PhysRevB.103.L060508
11.3	—	single_crystal	specific_heat	d-wave	2021	T1	2102.11542
11.3	—	single_crystal	STM	unknown	2014	—	1411.3181
11.3	—	polycrystal	muSR	—	2011	T1	DOI: 10.1103/PhysRevB.83.024504
11.3	—	single_crystal	specific_heat	—	2000	T1	DOI: 10.1103/PhysRevB.62.103
11.3	—	single_crystal	resistivity	—	1998	T1	DOI: 10.1103/PhysRevB.57.R5622
11.3	—	single_crystal	susceptibility	—	1997	T1	DOI: 10.1103/PhysRevB.56.R2936
11.0	—	single_crystal	resistivity	—	2010	T1	DOI: 10.1103/PhysRevLett.104.217003
11.0	—	single_crystal	resistivity	—	2008	T1	DOI: 10.1103/PhysRevB.77.054505
11.0	ambient	single_crystal	susceptibility	—	1995	T1	DOI: 10.1103/PhysRevB.52.R13126
10.0	—	single_crystal	—	—	2014	T1	1405.0067
8.7	—	thin_film	resistivity	p-wave	2025	—	2501.16957
4.6	0.3	single_crystal	susceptibility	—	2020	T1	DOI: 10.1103/PhysRevResearch.2.043008
—	—	single_crystal	susceptibility	unknown	2025	T2	2505.17378
—	—	—	susceptibility	d-wave	2019	T1	1902.02030
—	—	single_crystal	STM	—	2014	T1	1410.5245
—	—	single_crystal	susceptibility	d-wave	2013	T1	DOI: 10.1103/PhysRevB.88.064501
—	—	single_crystal	resistivity	d-wave	2012	T1	1210.6405
—	—	—	—	d-x^2-y^2	2006	T3	cond-mat/0603057
—	—	single_crystal	susceptibility	—	2005	T2	cond-mat/0507155
—	ambient	single_crystal	resistivity	—	2005	T1	DOI: 10.1103/PhysRevB.72.054511
—	ambient	powder	susceptibility	—	1995	T1	DOI: 10.1103/PhysRevLett.74.3455
—	—	single_crystal	susceptibility	—	1994	T1	DOI: 10.1103/PhysRevB.49.15227

Structure

Crystal structure: Pnma
Space group: Pnma
Phase: cuprate_123
Lattice a (Å): 12.957
Lattice c (Å): 8.547

Superconducting parameters

Pairing symmetry: d-wave
Gap structure: nodal
Hc2: 10.0 T (near 0 K)
λ_eph (e–ph coupling): 2.50

Competing orders

Competing order: AFM
ρ(T) exponent: 2.00

Samples & pressure

Sample form: single_crystal
Substrate: plastic
Pressure type: none
Doping level: 0.500