Searched for: collection%3Air
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Fang, C.M. (author), Van Huis, M.A. (author), Xu, Q. (author), Cava, R.J. (author), Zandbergen, H.W. (author)
Nb12O29 is a 4d transition metal oxide that occurs in two forms with different symmetries, monoclinic (m) and orthorhombic (o). The monoclinic form has unusual magnetic properties; below a temperature of 12 K, it exhibits both metallic conductivity and antiferromagnetic ordering. Here, first-principles density-functional theory calculations are...
journal article 2014
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Klimczuk, T. (author), Wang, C.H. (author), Lawrence, J.M. (author), Xu, Q. (author), Durakiewicz, T. (author), Ronning, F. (author), Llobet, A. (author), Trouw, F. (author), Kurita, N. (author), Tokiwa, Y. (author), Lee, H. (author), Booth, C.H. (author), Gardner, J.S. (author), Bauer, E.D. (author), Joyce, J.J. (author), Zandbergen, H.W. (author), Movshovich, R. (author), Cava, R.J. (author), Thompson, J.D. (author)
We report extensive measurements on a new compound (Yb0.24Sn0.76)Ru that crystallizes in the cubic CsCl structure. Valence-band photoemission (PES) and L3 x-ray absorption show no divalent component in the 4f configuration of Yb. Inelastic neutron scattering (INS) indicates that the eight-fold degenerate J-multiplet of Yb3+ is split by the...
journal article 2011
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Giang, N. (author), Xu, Q. (author), Hor, Y.S. (author), Williams, A.J. (author), Dutton, S.E. (author), Zandbergen, H.W. (author), Cava, R.J. (author)
The structural misfit compound (PbSe)1.16(TiSe2)2 is reported. It is a superconductor with a Tc of 2.3 K. (PbSe)1.16(TiSe2)2 derives from a parent compound, TiSe2, which shows a charge-density wave transition and no superconductivity. The crystal structure, characterized by high-resolution electron microscopy and powder x-ray diffraction,...
journal article 2010
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Hor, Y.S. (author), Williams, A.J. (author), Checkelsky, J.G. (author), Roushan, P. (author), Seo, J. (author), Xu, Q. (author), Zandbergen, H.W. (author), Yazdani, A. (author), Ong, N.P. (author), Cava, R.J. (author)
Bi2Se3 is one of a handful of known topological insulators. Here we show that copper intercalation in the van der Waals gaps between the Bi2Se3 layers, yielding an electron concentration of ?2×1020??cm-3, results in superconductivity at 3.8 K in CuxBi2Se3 for 0.12?x?0.15. This demonstrates that Cooper pairing is possible in Bi2Se3 at accessible...
journal article 2010
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Holman, K.L. (author), McQueen, T.M. (author), Williams, A.J. (author), Klimczuk, T. (author), Stephens, P.W. (author), Zandbergen, H.W. (author), Xu, Q. (author), Ronning, F. (author), Cava, R.J. (author)
Although many materials display the transition from insulating to metallic behavior on doping, only a few, such as VO2, have the right combination of crystal structure and physical properties to serve as model systems. Here we report the electronic and structural characteristics of the insulator to metal transition in V1?xMoxO2, which we have...
journal article 2009
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McQueen, T.M. (author), Huang, Q. (author), Ksenofontov, V. (author), Felser, C. (author), Xu, Q. (author), Zandbergen, H. (author), Hor, Y.S. (author), Allred, J. (author), Williams, A.J. (author), Qu, D. (author), Checkelsky, J. (author), Ong, N.P. (author), Cava, R.J. (author)
The recently discovered iron arsenide superconductors appear to display a universal set of characteristic features, including proximity to a magnetically ordered state and robustness of the superconductivity in the presence of disorder. Here we show that superconductivity in Fe1+?Se, which can be considered the parent compound of the...
journal article 2009
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Wagner, K.E. (author), Morosan, E. (author), Hor, Y.S. (author), Tao, J. (author), Zhu, Y. (author), Sanders, T. (author), McQueen, T.M. (author), Zandbergen, H.W. (author), Williams, A.J. (author), West, D.V. (author), Cava, R.J. (author)
We report the characterization of layered 2H-type CuxTaS2 for 0?x?0.12. The charge density wave (CDW), at 70 K for TaS2, is destabilized with Cu doping. The sub-1 K superconducting transition in undoped 2H-TaS2 jumps quickly to 2.5 K at low x, increases to 4.5 K at the optimal composition Cu0.04TaS2, and then decreases at higher x. The...
journal article 2008
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Bos, J.W.G. (author), Zandbergen, H.W. (author), Lee, M.H. (author), Ong, N.P. (author), Cava, R.J. (author)
journal article 2007
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Klimczuk, T. (author), Xu, Q. (author), Morosan, E. (author), Thompson, J.D. (author), Zandbergen, H.W. (author), Cava, R.J. (author)
Mg10Ir19B16, a previously unreported compound in the Mg-Ir-B chemical system, is found to be superconducting at temperatures near 5 K. The fact that the compound exhibits a range of superconducting temperatures between 4 and 5 K suggests that a range of stoichiometries is allowed, though no structural evidence for this is observed. The compound...
journal article 2006
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Bos, J.W.G. (author), Lee, M. (author), Morosan, E. (author), Zandbergen, H.W. (author), Lee, W.L. (author), Ong, N.P. (author), Cava, R.J. (author)
Ferromagnetism is observed below 10 K in [Bi0.75Te0.125Mn0.125]Te. This material has the BiTe structure, which is made from the stacking of two Te-Bi-Te-Bi-Te blocks and one Bi-Bi block per unit cell. Crystal structure analysis shows that Mn is localized in the Bi2 blocks, and is accompanied by an equal amount of TeBi antisite occupancy in the...
journal article 2006
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Viciu, L. (author), Bos, J.W.G. (author), Zandbergen, H.W. (author), Huang, Q. (author), Foo, M.L. (author), Ishiwata, S. (author), Ramirez, A.P. (author), Lee, M. (author), Ong, N.P. (author), Cava, R.J. (author)
journal article 2006
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Andersen, E.N. (author), Klimczuk, T. (author), Miller, V.L. (author), Zandbergen, H.W. (author), Cava, R.J. (author)
journal article 2005
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Huang, Q. (author), Foo, M.L. (author), Pascal, R.A. (author), Lynn, J.W. (author), Toby, B.H. (author), He, T. (author), Zandbergen, H.W. (author), Cava, R.J. (author)
journal article 2004
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Zandbergen, H.W. (author), Foo, M. (author), Xu, Q. (author), Kumar, V. (author), Cava, R.J. (author)
journal article 2004
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Foo, M.L. (author), Wang, Y. (author), Watauchi, S. (author), Zandbergen, H.W. (author), THe, T. (author), Cava, R.J. (author), Ong, N.P. (author)
journal article 2004
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Loureiro, S.M. (author), Young, D.P. (author), Cava, R.J. (author), Jin, R. (author), Liu, Y. (author), Bordet, P. (author), Qin, Y. (author), Zandbergen, H. (author), Godinho, M. (author), Núñez-Regueiro, M. (author), Batlogg, B. (author)
journal article 2001
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Cava, R.J. (author), Takagi, H. (author), Zandbergen, H.W. (author), Hessen, B. (author), Krajewski, J.J. (author), Peck, W.F. (author)
journal article 1992
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