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Abrupt change in the energy gap of superconducting Ba_{1-x}K_{x}Fe_{2}As_{2} single crystals with hole doping (2012)

W. Malaeb, T. Shimojima, Y. Ishida, K. Okazaki, Y. Ota, K. Ohgushi, K. Kihou, T. Saito, C. H. Lee, S. Ishida, M. Nakajima, S. Uchida, H. Fukazawa, Y. Kohori, A. Iyo, H. Eisaki, C.-T. Chen, S. Watanabe, H. Ikeda, and S. Shin

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2012-10-11

Beschreibung: Author(s): W. Malaeb, T. Shimojima, Y. Ishida, K. Okazaki, Y. Ota, K. Ohgushi, K. Kihou, T. Saito, C. H. Lee, S. Ishida, M. Nakajima, S. Uchida, H. Fukazawa, Y. Kohori, A. Iyo, H. Eisaki, C.-T. Chen, S. Watanabe, H. Ikeda, and S. Shin We performed a laser angle-resolved photoemission spectroscopy (ARPES) study on a wide doping range of Ba 1- x K x Fe 2 As 2 (BaK) and precisely determined the doping evolution of the superconducting gaps in this compound. The gap size of the outer hole Fermi-surface (FS) sheet around the Brillouin zone (BZ... [Phys. Rev. B 86, 165117] Published Wed Oct 10, 2012

Schlagwort(e): Electronic structure and strongly correlated systems

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

Publiziert von American Physical Society (APS)

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Doping evolution of the quasiparticle excitations in heavily hole-doped Ba1−xKxFe2As2: A possible superconducting gap with sign-reversal between hole pockets (2014)

D. Watanabe, T. Yamashita, Y. Kawamoto, S. Kurata, Y. Mizukami, T. Ohta, S. Kasahara, M. Yamashita, T. Saito, H. Fukazawa, Y. Kohori, S. Ishida, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, A. B. Vorontsov, T. Shibauchi, and Y. Matsuda

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2014-03-12

Beschreibung: Author(s): D. Watanabe, T. Yamashita, Y. Kawamoto, S. Kurata, Y. Mizukami, T. Ohta, S. Kasahara, M. Yamashita, T. Saito, H. Fukazawa, Y. Kohori, S. Ishida, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, A. B. Vorontsov, T. Shibauchi, and Y. Matsuda To gain insight into the unconventional superconductivity of Fe pnictides with no electron pockets, we measure the thermal conductivity κ and penetration depth λ in the heavily hole-doped regime of Ba1−xKxFe2As2. The residual thermal conductivity (κ/T)T→0K and T dependence of λ consistently indicate... [Phys. Rev. B 89, 115112] Published Tue Mar 11, 2014

Schlagwort(e): Electronic structure and strongly correlated systems

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

Publiziert von American Physical Society (APS)

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Spin susceptibility in the superconducting state of the ferromagnetic superconductor UCoGe (2013)

T. Hattori, K. Karube, Y. Ihara, K. Ishida, K. Deguchi, N. K. Sato, and T. Yamamura

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2013-08-31

Beschreibung: Author(s): T. Hattori, K. Karube, Y. Ihara, K. Ishida, K. Deguchi, N. K. Sato, and T. Yamamura In order to determine the superconducting paring state in the ferromagnetic superconductor UCoGe, the 59 Co NMR Knight shift, which is directly related to the microscopic spin susceptibility, was measured in the superconducting state under magnetic fields perpendicular to the spontaneous magnetizatio... [Phys. Rev. B 88, 085127] Published Fri Aug 30, 2013

Schlagwort(e): Electronic structure and strongly correlated systems

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

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Crossover from bad to good metal in BaFe_{2}(As_{1−x}P_{x})_{2} induced by isovalent P substitution (2013)

M. Nakajima, T. Tanaka, S. Ishida, K. Kihou, C. H. Lee, A. Iyo, T. Kakeshita, H. Eisaki, and S. Uchida

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2013-09-04

Beschreibung: Author(s): M. Nakajima, T. Tanaka, S. Ishida, K. Kihou, C. H. Lee, A. Iyo, T. Kakeshita, H. Eisaki, and S. Uchida Bad metallic behavior or incoherent charge dynamics is characteristic of the normal state of high-transition-temperature copper-oxide superconductors. A parent compound of iron-based superconductors, BaFe 2 As 2 , is also a bad metal in the high-temperature phase, whereas its phosphorous counterpart, Ba... [Phys. Rev. B 88, 094501] Published Tue Sep 03, 2013

Schlagwort(e): Superfluidity and superconductivity

Print ISSN: 1098-0121

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Thema: Physik

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s-wave superconductivity in superconducting BaTi_{2}Sb_{2}O revealed by ^{121/123}Sb-NMR/nuclear quadrupole resonance measurements (2013)

S. Kitagawa, K. Ishida, K. Nakano, T. Yajima, and H. Kageyama

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2013-03-01

Beschreibung: Author(s): S. Kitagawa, K. Ishida, K. Nakano, T. Yajima, and H. Kageyama We report the 121/123 Sb-NMR/nuclear quadrupole resonance (NQR) measurements on the superconductor BaTi 2 Sb 2 O with a two-dimensional Ti 2 O square-net layer formed with Ti 3+ (3 d 1 ). NQR measurements revealed that the in-plane four-fold symmetry is broken at the Sb site below T A ∼40 K, without an internal ... [Phys. Rev. B 87, 060510] Published Thu Feb 28, 2013

Schlagwort(e): Superfluidity and superconductivity

Print ISSN: 1098-0121

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Thema: Physik

Publiziert von American Physical Society (APS)

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