Nd_1.85Ce_0.15CuO_4

cuprate · T' tetragonal

ambient SCunconventional2D / interfacecompeting orderdisputed

Tc max

25.0 K

Tc ambient

25.0 K

Discovery

1996

Papers

Tc max measured at ambient, single_crystal, resistivity, arXiv:cond-mat/0103480, confirmed by 4 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	Paper
25.0	ambient	single_crystal	—	—	2004	cond-mat/0403258
25.0	ambient	single_crystal	neutron	d-wave	2004	cond-mat/0410250
25.0	ambient	single_crystal	resistivity	—	2001	cond-mat/0103480
25.0	ambient	single_crystal	susceptibility	d-wave	2001	cond-mat/0107244
24.0	ambient	single_crystal	resistivity, susceptibility	—	2002	cond-mat/0212172
24.0	ambient	thin_film	STM, resistivity	—	2001	cond-mat/0101433
24.0	ambient	single_crystal	susceptibility	d-wave	2001	cond-mat/0107244
24.0	ambient	thin_film	resistivity	s-wave	1998	cond-mat/9805162
23.5	ambient	thin_film	resistivity	—	2002	cond-mat/0205090
23.5	ambient	thin_film	resistivity	—	2000	cond-mat/0002341
23.0	ambient	—	—	—	2004	cond-mat/0405016
23.0	ambient	—	—	—	1997	cond-mat/9711194
22.5	ambient	thin_film	resistivity	—	2002	cond-mat/0205090
22.0	ambient	single_crystal	—	d-wave	2005	cond-mat/0501621
22.0	ambient	single_crystal	susceptibility	d-wave	2003	cond-mat/0304175
22.0	ambient	single_crystal	susceptibility	—	2002	cond-mat/0201538
21.0	ambient	thin_film	susceptibility	—	2004	cond-mat/0408100
21.0	ambient	—	susceptibility	s-wave	2004	cond-mat/0408105
20.1	ambient	thin_film	susceptibility	d-wave	2000	cond-mat/0003404
20.1	ambient	thin_film	susceptibility, resistivity	d-wave	2000	cond-mat/0005515
20.0	ambient	thin_film	resistivity	d-wave	2005	cond-mat/0503429
18.0	ambient	single_crystal	—	—	2004	cond-mat/0403258
16.9	ambient	thin_film	susceptibility, resistivity	d-wave	2000	cond-mat/0005515
12.5	ambient	thin_film	resistivity	—	2002	cond-mat/0205090
—	—	—	STM	—	2004	cond-mat/0405073
—	ambient	—	resistivity	—	2004	cond-mat/0406340
—	ambient	—	resistivity	d-wave	2004	cond-mat/0411069
—	ambient	—	—	—	2003	cond-mat/0307454
—	ambient	—	susceptibility	—	2003	cond-mat/0308236
—	ambient	single_crystal	neutron	—	2003	cond-mat/0310289
—	ambient	single_crystal	susceptibility	—	2002	cond-mat/0201024
—	ambient	—	susceptibility	s-wave	2001	cond-mat/0112401
—	ambient	single_crystal	STM	unknown	2000	cond-mat/0002141
—	ambient	single_crystal	susceptibility	s-wave	2000	cond-mat/0002301
—	ambient	thin_film	—	d-wave	2000	cond-mat/0002341
—	ambient	thin_film	—	d-wave	2000	cond-mat/0004185
—	ambient	single_crystal	ARPES	d-wave	2000	cond-mat/0012003
—	ambient	single_crystal	susceptibility	d-wave	1999	cond-mat/9912001
—	ambient	—	—	—	1998	cond-mat/9806064
—	ambient	thin_film	STM	s-wave	1998	cond-mat/9806150
—	ambient	—	—	—	1996	cond-mat/9610050

Structure

Crystal structure: T' tetragonal
Space group: I4/mmm (#139)
Lattice a (Å): 3.950
Lattice c (Å): 12.070

Superconducting parameters

Pairing symmetry: d-wave
Gap structure: nodal
Hc2: 8.0 T (2.2 K, H parallel c)
λ_eph (e–ph coupling): —

Competing orders

Competing order: AFM
T_AFM: 220.0 K
ρ(T) exponent: 2.00

Samples & pressure

Substrate: SrTiO_3
Pressure type: none
Doping type: electron
Doping level: 0.150