Materials 286K Class 13, Local structure and structural effects in cuprates Right: (La,M) 2 CuO 4 superconducting T c : Composition.

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Presentation transcript:

Materials 286K Class 13, Local structure and structural effects in cuprates Right: (La,M) 2 CuO 4 superconducting T c : Composition dependence at 10 K of (a) the in-plane copper-oxygen, Cu-O(1), bond lengths; (b) the orthorhombic strain; (c) the Cu-O(1)-Cu bond angles; (d ) the superconducting T c ’s for La 2–x Sr x CuO 4 and La 2–x Ca x CuO 4 systems. Tetragonal La 2–x Sr x CuO 4 systems under applied pressure are marked by solid squares. Dabrowski, Wang, Rogacki, Jorgensen, Hitterman, Wagner, Hunter, Radaelli, Hinks, Phys. Rev. Lett. 76 (1996) 1348–1351.

Materials 286K Class 13, Local structure and structural effects in cuprates Cu–O bond distances in La 1.85 Sr 0.15 CuO 4 appear to suggest two phases at low temperature, associated with stripes. Bianconi, Saini, Lanzara, Missori, Rossetti, Moro, Oyanagi, Yamaguchi, Oka, Ito, Phys. Rev. Lett. 76 (1996) 3412–3415.

Materials 286K Class 13, Local structure and structural effects in cuprates MBE-grown LSCO: Highest T C recorded, potentially due to interface effects. Bozovic, Logvenov, Belca, Narimbetov, Sveklo, Phys. Rev. Lett. 89 (2002) (1–4).

Materials 286K Class 13, Local structure and structural effects in cuprates Average compositions versus bilayers: T c is enhanced Yuli, Asulin, Millo, Orgad, Iomin, Koren, Phys. Rev. Lett. 101 (2008) (1–4).

Materials 286K Class 13, Local structure and structural effects in cuprates Highly optimized “123”. T c reaches 94.3 K. Liang, Bonn, Hardy, Phys. Rev. B. 73 (2006) R(1–4).

Materials 286K Class 13, Local structure and structural effects in cuprates Highly optimized “123”. T c reaches 94.3 K. T c is slightly suppressed near p = 1/8 holes. Stripe formation? Liang, Bonn, Hardy, Phys. Rev. B. 73 (2006) R(1–4).

Materials 286K Class 13, Local structure and structural effects in cuprates McAllister, Attfield, Phys. Rev. Lett. 83 (1999) 3289–3292. Cation disorder in 214 cuprates: All doped at x = 0.15

Materials 286K Class 13, Local structure and structural effects in cuprates Cation disorder in 214 cuprates: All doped at x = 0.15 McAllister, Attfield, Phys. Rev. Lett. 83 (1999) 3289–3292.

Materials 286K Class 13, Local structure and structural effects in cobaltates Polarons in La 1–x Sr x CoO 3 (x = 0.3): Behavior attributed to phase separation. Caciuffo, Mira, Rivas, Senaris-Rodrguez, Radaelli, Carsughi, Fiorani, Goodenough, Europhys. Lett. 45 (1999) 399–405.

Materials 286K Class 13, Local structure and structural effects in cobaltates Polarons in La 1–x Sr x CoO 3 (x = 0.3): Magnetic clusters seen in small-angle scattering grow and then shrink. Caciuffo, Mira, Rivas, Senaris-Rodrguez, Radaelli, Carsughi, Fiorani, Goodenough, Europhys. Lett. 45 (1999) 399–405.

Materials 286K Class 13, Local structure and structural effects in manganites Pr 0.7 Ca 0.3 MnO 3 : Radaelli, Ibberson, Argyriou, Casalta, Andersen, Cheong, Mitchell, Phys. Rev. B 63 (2001) (1–4).

Materials 286K Class 13, Local structure and structural effects in manganites Pr 0.7 Ca 0.3 MnO 3 : Radaelli, Ibberson, Argyriou, Casalta, Andersen, Cheong, Mitchell, Phys. Rev. B 63 (2001) (1–4).

Materials 286K Class 13, Local structure and structural effects in manganites La 1–x Ca x MnO 3 : PDF peak corresponding to O–O correlations. (a) x = 0.25, (b) x = 0.21, and (c) x = Billinge, DiFrancesco, Kwei, Neumeier, Thompson, Phys. Rev. Lett 77 (1996) 715–718.

Materials 286K Class 13, Local structure and structural effects in manganites La 1–x Ca x MnO 3 in the ferromagnetic regime Bozin, Schmidt, DeConinck, Paglia, Mitchell, Chatterji, Radaelli, Proffen, Billinge, Phys. Rev. Lett. 98 (2007) (1–4).

Materials 286K Class 13, Local structure and structural effects in manganites La 1–x Ca x MnO 3 in the ferromagnetic regime Bozin, Schmidt, DeConinck, Paglia, Mitchell, Chatterji, Radaelli, Proffen, Billinge, Phys. Rev. Lett. 98 (2007) (1–4).

Materials 286K Class 13, Local structure and structural effects in thiospinels CuIr 2 S 4 : M–I transition at 230 K. Radaelli, Horibe, Gutmann, Ishibashi, Chen, Ibberson, Koyama, Hor, Kiryukhin, Cheong, Nature 416 (2002) 155–158.

Materials 286K Class 13, Local structure and structural effects in thiospinels CuIr 2 S 4 : M–I transition at 230 K. Temperature, Cr 3+ doping, and X-ray fluence effects. Bozin, Masadeh, Hor, Mitchell, Billinge, Phys. Rev. Lett. 106 (2011) (1–4).

Materials 286K Class 13, Local structure and structural effects in thiospinels CuIr 2 S 4 : M–I transition at 230 K. Temperature, Cr 3+ doping, and X-ray fluence effects. Bozin, Masadeh, Hor, Mitchell, Billinge, Phys. Rev. Lett. 106 (2011) (1–4).