Kondo insulators

Autor: Fisk, Z, Sarrao, JL, Thompson, JD, Mandrus, D, Hundley, MF, Miglori, A, Bucher, B, Schlesinger, Z, Aeppli, G, Bucher, E, DiTusa, JF, Oglesby, CS, Ott, HR, Canfield, PC, Brown, SE

Publikováno v: Fisk, Z; Sarrao, JL; Thompson, JD; Mandrus, D; Hundley, MF; Miglori, A; et al.(1995). Kondo insulators. Physica B: Physics of Condensed Matter, 206-207(C), 798-803. doi: 10.1016/0921-4526(94)00588-M. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/66z9201n

The Kondo insulating materials present a particularly simple limiting case of the strongly correlated electron lattice problem, one occupied f-state interacting with a single half-filled conduction band. Experiment shows that the solution to this pro

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https://doi.org/10.1016/0921-4526(94)00588-m

Recent developments (after 2000)

Autor: Fisk, Z, Ott, HR

Publikováno v: Fisk, Z; & Ott, HR. (2011). Recent developments (after 2000). Contemporary Concepts of Condensed Matter Science, 4(C), 217-234. doi: 10.1016/S1572-0934(11)04006-6. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/2dg5v2ck

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Low-temperature phase transitions in the induced-moment system PrB4

Autor: Wigger, GA, Felder, E, Monnier, R, Ott, HR, Pham, L, Fisk, Z

Publikováno v: Wigger, GA; Felder, E; Monnier, R; Ott, HR; Pham, L; & Fisk, Z. (2005). Low-temperature phase transitions in the induced-moment system PrB4. Physical Review B-Condensed Matter and Materials Physics, 72(1). doi: 10.1103/PhysRevB.72.014419. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/5168c9vf

We report the results of measurements of the electrical resistivity, the magnetization, and the specific heat of PrB4 below room temperature. The crystal electric field (CEF) splits the 4f2 multiplet of the Pr ions into nine singlets. In its ground s

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Kondo behavior of U in CaB6

Autor: Wigger, GA, Felder, E, Weyeneth, S, Ott, HR, Fisk, Z

Publikováno v: Wigger, GA; Felder, E; Weyeneth, S; Ott, HR; & Fisk, Z. (2005). Kondo behavior of U in CaB6. Physica B: Condensed Matter, 359-361(SPEC. ISS.), 938-940. doi: 10.1016/j.physb.2005.01.269. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/14z057nc
Wigger, GA; Felder, E; Weyeneth, S; Ott, HR; & Fisk, Z. (2004). Kondo behavior of U in CaB6. Europhysics Letters, 68(5), 685-691. doi: 10.1209/epl/i2004-10252-0. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/4h29339b

Replacing U for Ca in semiconducting CaB6at the few at.% level induces metallic behaviour and Kondo-type phenomena at low temperatures, a rather unusual feature for U impurities in metallic hosts. For Ca0.992U0.008B6, the resistance minimum occurs at

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Andreev reflection at point contacts with heavy-fermion UBe13? Walti et al. reply

Autor: Walti, C, Ott, HR, Fisk, Z, Smith, JL

Publikováno v: Walti, C; Ott, HR; Fisk, Z; & Smith, JL. (2000). Andreev reflection at point contacts with heavy-fermion UBe13? Walti et al. reply. PHYSICAL REVIEW LETTERS, 85(24), 5258-5258. doi: 10.1103/PhysRevLett.85.5258. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/17q4672v

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