Tl_2Ba_2CuO_6+δ

cuprate · tetragonal

ambient SCunconventional2D / interfacecompeting orderdisputed

Tc max

91.0 K

Tc ambient

91.0 K

Discovery

1997

Papers

Tc max measured at ambient, single_crystal, tunneling, arXiv:cond-mat/9905370, confirmed by 2 papers

Evidence (80 records from 67 papers)

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

Tc (K)	P (GPa)	Sample	Method	Pairing	Year	Paper
92.5	ambient	single_crystal	susceptibility	—	2002	cond-mat/0201252
91.0	ambient	single_crystal	tunneling	d-wave	1999	cond-mat/9905370
90.9	ambient	single_crystal	neutron	d-wave	2002	cond-mat/0211227
90.0	ambient	—	neutron	d-wave	2004	cond-mat/0401328
90.0	ambient	—	—	—	2003	cond-mat/0306680
90.0	ambient	single_crystal	neutron	—	2002	cond-mat/0201252
87.6	ambient	—	—	—	1998	cond-mat/9812081
86.0	ambient	single_crystal	tunneling	d-wave	1999	cond-mat/9905370
85.0	ambient	polycrystal	—	d-wave	2003	cond-mat/0305525
85.0	ambient	—	—	—	2003	cond-mat/0306698
85.0	ambient	polycrystal	NMR	d-wave	2002	cond-mat/0206362
85.0	ambient	polycrystal	muSR	—	2002	cond-mat/0212643
85.0	ambient	single_crystal	susceptibility	—	1998	cond-mat/9801278
82.0	ambient	single_crystal	resistivity	—	1999	cond-mat/9906187
81.0	ambient	single_crystal	magnetization, resistivity	—	1999	cond-mat/9905170
80.0	ambient	single_crystal	—	—	2000	cond-mat/0003157
80.0	ambient	thin_film	resistivity	—	1999	cond-mat/9906187
80.0	ambient	thin_film	susceptibility	—	1999	cond-mat/9908206
80.0	ambient	single_crystal	resistivity	d-wave	1999	cond-mat/9908405
80.0	ambient	single_crystal	resistivity	d-wave	1999	cond-mat/9911211
80.0	ambient	single_crystal	Raman scattering	d-wave	1998	cond-mat/9809159
78.7	ambient	—	specific_heat	—	1998	cond-mat/9811082
56.0	ambient	single_crystal	Raman scattering	d-wave	1998	cond-mat/9809159
54.0	ambient	single_crystal	resistivity	d-wave	1999	cond-mat/9908405
35.0	ambient	single_crystal	susceptibility	—	2001	cond-mat/0104020
33.0	ambient	single_crystal	resistivity	d-wave	1999	cond-mat/9908405
32.0	ambient	single_crystal	magnetization, resistivity	—	1999	cond-mat/9905170
31.0	ambient	single_crystal	resistivity	d-wave	1999	cond-mat/9908405
30.0	ambient	single_crystal	resistivity	—	2001	cond-mat/0102294
30.0	ambient	—	resistivity	d-wave	2001	cond-mat/0110187
30.0	ambient	single_crystal	Raman scattering	d-wave	1998	cond-mat/9809159
25.0	ambient	single_crystal	susceptibility	—	1998	cond-mat/9801278
20.0	ambient	ceramic	muSR, specific_heat	d-wave	2001	cond-mat/0110642
17.0	ambient	—	resistivity, specific_heat, susceptibility	d-wave	1998	cond-mat/9801059
15.0	ambient	—	—	d-wave	2003	cond-mat/0301105
15.0	ambient	—	—	d-wave	2002	cond-mat/0211366
15.0	ambient	single_crystal	susceptibility	—	1998	cond-mat/9801278
—	ambient	—	neutron	—	2004	cond-mat/0401354
—	ambient	—	neutron	d-wave	2004	cond-mat/0403609
—	ambient	—	—	d-wave	2004	cond-mat/0404287
—	ambient	—	neutron, muSR, resistivity	d-wave	2004	cond-mat/0405038
—	ambient	—	muSR	—	2004	cond-mat/0406301
—	ambient	—	resistivity	—	2004	cond-mat/0406340
—	ambient	—	muSR	—	2004	cond-mat/0408281
—	ambient	polycrystal	muSR, resistivity	d-wave	2004	cond-mat/0410568
—	ambient	—	thermal conductivity	—	2003	cond-mat/0301207
—	ambient	single_crystal	neutron	s_pm	2003	cond-mat/0302566
—	ambient	—	NMR	d-wave	2003	cond-mat/0303541
—	ambient	—	—	—	2003	cond-mat/0304432
—	ambient	—	—	extended s-wave	2003	cond-mat/0305483
—	ambient	—	—	d-wave	2003	cond-mat/0306492
—	—	—	neutron	—	2003	cond-mat/0307195
—	ambient	—	resistivity	—	2003	cond-mat/0312182
—	ambient	—	STM, neutron	—	2002	cond-mat/0202083
—	ambient	—	NMR	—	2002	cond-mat/0206502
—	ambient	—	—	d-wave	2002	cond-mat/0209061
—	—	—	neutron	d-wave	2002	cond-mat/0211090
—	ambient	—	STM	—	2002	cond-mat/0211148
—	ambient	—	susceptibility, specific_heat	—	2002	cond-mat/0211613
—	ambient	—	specific_heat	—	2002	cond-mat/0212643
—	ambient	—	IR spectroscopy	—	2001	cond-mat/0102455
—	ambient	single_crystal	resistivity	—	2001	cond-mat/0103507
—	ambient	—	muSR, susceptibility	d-wave	2001	cond-mat/0104053
—	ambient	—	—	d-wave	2001	cond-mat/0112042
—	ambient	—	—	d-wave	2000	cond-mat/0004185
—	ambient	—	muSR	—	2000	cond-mat/0006288
—	ambient	—	resistivity	—	2000	cond-mat/0010179
—	ambient	—	susceptibility	—	1999	cond-mat/9903285
—	ambient	—	susceptibility	—	1999	cond-mat/9903284
—	ambient	—	—	—	1999	cond-mat/9903397
—	ambient	—	resistivity	—	1999	cond-mat/9904254
—	ambient	single_crystal	STM	d-wave	1999	cond-mat/9906205
—	ambient	thin_film	—	—	1999	cond-mat/9908206
—	ambient	—	susceptibility	d-wave	1998	cond-mat/9807404
—	ambient	single_crystal	susceptibility	—	1998	cond-mat/9808096
—	ambient	—	resistivity	—	1998	cond-mat/9811101
—	ambient	—	resistivity	—	1997	cond-mat/9706029
—	ambient	—	muSR, specific_heat	—	1997	cond-mat/9706151
—	ambient	—	—	d-wave	1997	cond-mat/9710115
—	ambient	—	—	—	1997	cond-mat/9711099

Structure

Crystal structure: tetragonal
Space group: I4/mmm
Lattice a (Å): 3.600

Superconducting parameters

Pairing symmetry: d-wave
Gap structure: nodal
Hc2: 2.0 T (T=8K)
λ_eph (e–ph coupling): —

Competing orders

Competing order: AFM
T_AFM: 20.0 K
ρ(T) exponent: 1.00

Samples & pressure

Sample form: single_crystal
Pressure type: none
Doping type: hole
Doping level: 0.235