Combined external pressure and Cu-substitution studies on BaFe2As2single crystals

Autor: Piva, MM, Besser, M, Mydeen, K, Garitezi, TM, Rosa, PFS, Adriano, C, Grant, T, Fisk, Z, Urbano, RR, Nicklas, M, Pagliuso, PG

Publikováno v: Piva, MM; Besser, M; Mydeen, K; Garitezi, TM; Rosa, PFS; Adriano, C; et al.(2015). Combined external pressure and Cu-substitution studies on BaFe2As2single crystals. Journal of Physics Condensed Matter, 27(14). doi: 10.1088/0953-8984/27/14/145701. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/3cd7g3j2

© 2015 IOP Publishing Ltd. We report a combined study of external pressure and Cu-substitution on BaFe2As2single crystals grown by the in-flux technique. At ambient pressure, the Cu-substitution is known to suppress the spin density wave (SDW) phase

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Possible unconventional superconductivity in substituted BaFe 2 As 2 revealed by magnetic pair-breaking studies

Autor: Rosa, PFS, Adriano, C, Garitezi, TM, Piva, MM, Mydeen, K, Grant, T, Fisk, Z, Nicklas, M, Urbano, RR, Fernandes, RM, Pagliuso, PG

Publikováno v: Rosa, PFS; Adriano, C; Garitezi, TM; Piva, MM; Mydeen, K; Grant, T; et al.(2014). Possible unconventional superconductivity in substituted BaFe 2 As 2 revealed by magnetic pair-breaking studies. Scientific Reports, 4. doi: 10.1038/srep06252. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/6xg7k4fk

The possible existence of a sign-changing gap symmetry in BaFe 2 As 2 -derived superconductors (SC) has been an exciting topic of research in the last few years. To further investigate this subject we combine Electron Spin Resonance (ESR) and pressur

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Disorder in quantum critical superconductors

Autor: Seo, S, Lu, X, Zhu, JX, Urbano, RR, Curro, N, Bauer, ED, Sidorov, VA, Pham, LD, Park, T, Fisk, Z, Thompson, JD

Publikováno v: Seo, S; Lu, X; Zhu, JX; Urbano, RR; Curro, N; Bauer, ED; et al.(2014). Disorder in quantum critical superconductors. Nature Physics, 10(2), 120-125. doi: 10.1038/nphys2820. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/3qt9r64w

In four classes of materials - the layered copper oxides, organics, iron pnictides and heavy-fermion compounds - an unconventional superconducting state emerges as a magnetic transition is tuned towards absolute zero temperature, that is, towards a m

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Conduction electron spin resonance in AlB2

Autor: Holanda, LM, Mendonça-Ferreira, L, Ribeiro, RA, Osorio-Guillén, JM, Dalpian, GM, Kuga, K, Nakatsuji, S, Fisk, Z, Urbano, RR, Pagliuso, PG, Rettori, C

Publikováno v: Holanda, LM; Mendonça-Ferreira, L; Ribeiro, RA; Osorio-Guillén, JM; Dalpian, GM; Kuga, K; et al.(2013). Conduction electron spin resonance in AlB2. Journal of Physics Condensed Matter, 25(21). doi: 10.1088/0953-8984/25/21/216001. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/2wh158cn

This work reports on electron spin resonance experiments in oriented single crystals of the hexagonal AlB2 diboride compound (P6/mmm, D16h structure) which display conduction electron spin resonance. The X-band electron spin resonance spectra showed

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Probing the electronic structure of pure and doped CeM In5 (M=Co,Rh,Ir) crystals with nuclear quadrupolar resonance

Autor: Rusz, J, Oppeneer, PM, Curro, NJ, Urbano, RR, Young, BL, Lebègue, S, Pagliuso, PG, Pham, LD, Bauer, ED, Sarrao, JL, Fisk, Z

Publikováno v: Rusz, J; Oppeneer, PM; Curro, NJ; Urbano, RR; Young, BL; Lebègue, S; et al.(2008). Probing the electronic structure of pure and doped CeM In5 (M=Co,Rh,Ir) crystals with nuclear quadrupolar resonance. Physical Review B-Condensed Matter and Materials Physics, 77(24). doi: 10.1103/PhysRevB.77.245124. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/5hn8f1dm

We report calculations of the electric-field gradients (EFGs) in pure and doped CeM In5 (M=Co, Rh, and Ir) compounds and compare with experiment. The degree to which the Ce4f electron is localized is treated within various models: the local-density a

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