Table 1.

RT thermal transport parameters for selected good metals, disordered metals, and cuprates

Metals	D, cm2/s	c, J/cm3⋅K	${\kappa }^{\ast }=cD$, W/cm$\cdot$K	$\kappa$, W/cm$\cdot$K	$\rho$,$\mu \mathrm{\Omega }\cdot$cm	$v_s$, cm/s	${\kappa }_{ph}^{min}\approx c{v}_{s}a$, W/cm$\cdot$K	${\kappa }_e(L_0)$, W/cm$\cdot$K	$L/L_0$	${\theta }_D$, K
Copper	1.15	3.45	3.97	3.98	1.67	3.56	0.044	4.4	0.91	310
Gold	1.28	2.5	3.2	3.15	2.24	3.25	0.033	3.3	0.96	185
Silver	1.61	2.47	4.0	4.27	1.59	3.6	0.036	4.6	0.95	220
Tungsten	0.68	2.56	1.74	1.78	5.65	5.25	0.042	1.3	1.27	315
Hg	0.043	1.88	0.081	0.084	96	1.45	0.0085	0.074	1.11	110
Constantan	0.064	3.65	0.23	0.21	49.9	5.2	0.07	0.15	1.32	390
Inconel 718	0.029	3.5	0.101	0.097	156	4.94	0.06	0.05	1.56	410
YBCO6.6 ($a$-dir)	0.016–0.018	2.7	0.043–0.05	0.05–0.065	560–700	6.05	0.063	0.013	5.0–5.4	410
YBCO6.75 ($a$-dir)	0.018–0.02	2.7	0.05–0.054	0.047–0.068	430–500	6.05	0.063	0.017	4.1–5.0	410
LSCO (x = 0.13)	0.021	2.67	0.056	0.057	700	5.9	0.06	0.01	4.5–5.5	400
BSCCO:2,212	0.021	2.35	0.048	0.058	580–780	4.3	0.055	0.009	4.6–6.2	280

Comparison of RT thermal properties of good metals, disordered metals, and cuprates. LSCO data are for La_1.87Sr_0.13CuO₄ (see Fig. S4). BSCCO data are for optimally doped Bi₂Sr₂CaCu₂O₈ as found in the literature. YBCO_6.60(a-dir) and YBCO_6.75(a-dir) a-direction data are on single crystals from similar doping, whereas diffusivity data are from this work. Discussions on ${\kappa }^{\ast }=cD$, ${\kappa }_{ph}^{min}\approx c{v}_s{\mathrm{\ell }}_{ph}$ (with ${\mathrm{\ell }}_{ph}$ =a; a is the lattice constant), and ${\kappa }_e(L_0)$ = $L_{0}T/\rho$ are in the text. (Table S2 provides the references from which the values in this table were obtained.)