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Doping control of realization of an extended Nagaoka ferromagnetic state from the Mott state (2014)

Hiroaki Onishi and Seiji Miyashita

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2014-12-31

Beschreibung: Author(s): Hiroaki Onishi and Seiji Miyashita Inspired by the Nagaoka ferromagnetism, we propose an itinerant model to study the transition between the Mott singlet state and a ferromagnetic state by emulating a doping process in finite lattices. In the Nagaoka ferromagnetism, the total spin of the system takes the maximum value when an electro... [Phys. Rev. B 90, 224426] Published Tue Dec 30, 2014

Schlagwort(e): Magnetism

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

Publiziert von American Physical Society (APS)

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Error Distributions on Large Entangled States with Non-Markovian Dynamics (2014)

Dara P. S. McCutcheon, Netanel H. Lindner, and Terry Rudolph

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2014-12-31

Beschreibung: Author(s): Dara P. S. McCutcheon, Netanel H. Lindner, and Terry Rudolph We investigate the distribution of errors on a computationally useful entangled state generated via the repeated emission from an emitter undergoing strongly non-Markovian evolution. For emitter-environment coupling of pure-dephasing form, we show that the probability that a particular patten of err... [Phys. Rev. Lett. 113, 260503] Published Tue Dec 30, 2014

Schlagwort(e): General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

Print ISSN: 0031-9007

Digitale ISSN: 1079-7114

Thema: Physik

Publiziert von American Physical Society (APS)

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3

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Magnetic field influence on the Néel, dimer, and spin-liquid states of the low-dimensional antiferromagnets NiTa_{2}O_{6} and CoSb_{2}O_{6} (2014)

A. B. Christian, S. H. Masunaga, A. T. Schye, A. Rebello, J. J. Neumeier, and Yi-Kuo Yu

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2014-12-30

Beschreibung: Author(s): A. B. Christian, S. H. Masunaga, A. T. Schye, A. Rebello, J. J. Neumeier, and Yi-Kuo Yu Magnetic susceptibility and heat capacity measurements are used to infer information about the short-range magnetic order above the Néel temperature T N and the antiferromagnetically ordered states below T N of quasi-one-dimensional (quasi-1D) CuSb 2 O 6 , NiTa 2 O 6 , and CoSb 2 O 6 . It is shown that two antife... [Phys. Rev. B 90, 224423] Published Mon Dec 29, 2014

Schlagwort(e): Magnetism

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Thema: Physik

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Neutron diffraction study of magnetic order in NdFe_{2}Al_{10} (2014)

Julien Robert, Françoise Damay, Kotaro Saito, Alexandre M. Bataille, Florence Porcher, Gilles André, Arsen Gukasov, Jean-Michel Mignot, Hiroshi Tanida, and Masafumi Sera

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2014-12-30

Beschreibung: Author(s): Julien Robert, Françoise Damay, Kotaro Saito, Alexandre M. Bataille, Florence Porcher, Gilles André, Arsen Gukasov, Jean-Michel Mignot, Hiroshi Tanida, and Masafumi Sera The orthorhombic compound NdFe 2 Al 10 has been studied by powder and single-crystal neutron diffraction. Below T N =3.9 K, the Nd 3+ magnetic moments order in a double-k [k 1 =(0,3/4,0), k 2 =(0,1/4,0)] collinear magnetic structure, whose unit cell consists of four orthorhombic units in the b direction. The ... [Phys. Rev. B 90, 224425] Published Mon Dec 29, 2014

Schlagwort(e): Magnetism

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Thema: Physik

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Probing magnetoelastic effects of ultrathin antiferromagnets via magnetic domain imaging in ferromagnetic-antiferromagnetic bilayers (2014)

Bo-Yao Wang, Jhen-Yong Hong, Nae-Yeou Jih, Kui-Hon Ou Yang, Li-Ren Chen, Hong-Ji Lin, Yuet-Loy Chan, Der-Hsin Wei, and Minn-Tsong Lin

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2014-12-30

Beschreibung: Author(s): Bo-Yao Wang, Jhen-Yong Hong, Nae-Yeou Jih, Kui-Hon Ou Yang, Li-Ren Chen, Hong-Ji Lin, Yuet-Loy Chan, Der-Hsin Wei, and Minn-Tsong Lin We report an experimental investigation of the magnetoelastic effects of ultrathin antiferromagnets, performed by comparing the characteristic behavior of the induced spin-reorientation transition (SRT) of Co films in two types of epitaxially grown bilayers: face-centered-cubic (fcc)–like Mn/Co (fcc... [Phys. Rev. B 90, 224424] Published Mon Dec 29, 2014

Schlagwort(e): Magnetism

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Thema: Physik

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6

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Spin-modulated torque waves in ferrimagnetic tunnel junctions (2014)

P. Merodio, A. Kalitsov, H. Béa, V. Baltz, and M. Chshiev

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2014-12-25

Beschreibung: Author(s): P. Merodio, A. Kalitsov, H. Béa, V. Baltz, and M. Chshiev Spin-transfer torque (STT) in tunnel junctions with ferromagnetic leads is one of the essential underlying phenomena of modern spintronics. Here, we present a theoretical study of STT in ferrimagnet- (FI-) based tunnel junctions where two FI metal electrodes are separated by a thin nonmagnetic insul... [Phys. Rev. B 90, 224422] Published Wed Dec 24, 2014

Schlagwort(e): Magnetism

Print ISSN: 1098-0121

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Thema: Physik

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7

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Atomic Clock with 1×10^{-18} Room-Temperature Blackbody Stark Uncertainty (2014)

K. Beloy, N. Hinkley, N. B. Phillips, J. A. Sherman, M. Schioppo, J. Lehman, A. Feldman, L. M. Hanssen, C. W. Oates, and A. D. Ludlow

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2014-12-25

Beschreibung: Author(s): K. Beloy, N. Hinkley, N. B. Phillips, J. A. Sherman, M. Schioppo, J. Lehman, A. Feldman, L. M. Hanssen, C. W. Oates, and A. D. Ludlow The Stark shift due to blackbody radiation (BBR) is the key factor limiting the performance of many atomic frequency standards, with the BBR environment inside the clock apparatus being difficult to characterize at a high level of precision. Here we demonstrate an in-vacuum radiation shield that fur... [Phys. Rev. Lett. 113, 260801] Published Wed Dec 24, 2014

Schlagwort(e): General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

Print ISSN: 0031-9007

Digitale ISSN: 1079-7114

Thema: Physik

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8

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Rotational motion of a magnetic vortex in a circular disk induced by injection of an electric current through an off-centered point contact (2014)

Hiroshi Tsukahara and Hiroshi Imamura

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2014-12-25

Beschreibung: Author(s): Hiroshi Tsukahara and Hiroshi Imamura The dynamics of a magnetic vortex in a circular disk with an off-centered point contact is theoretically studied based on Thiele's equation and two-vortices model. It is shown that the steady-state rotational motion of a vortex core is induced by an electric current, and the threshold current of thi... [Phys. Rev. B 90, 214437] Published Wed Dec 24, 2014

Schlagwort(e): Magnetism

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Thema: Physik

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9

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Structural Quantification of Entanglement (2014)

F. Shahandeh, J. Sperling, and W. Vogel

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2014-12-25

Beschreibung: Author(s): F. Shahandeh, J. Sperling, and W. Vogel We introduce an approach which allows a full structural and quantitative analysis of multipartite entanglement. The sets of states with different structures are convex and nested. Hence, they can be distinguished from each other using appropriate measurable witnesses. We derive equations for the con... [Phys. Rev. Lett. 113, 260502] Published Wed Dec 24, 2014

Schlagwort(e): General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

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Digitale ISSN: 1079-7114

Thema: Physik

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10

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Defect-induced magnetism in graphite through neutron irradiation (2014)

Yutian Wang, Pascal Pochet, Catherine A. Jenkins, Elke Arenholz, Gregor Bukalis, Sibylle Gemming, Manfred Helm, and Shengqiang Zhou

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2014-12-24

Beschreibung: Author(s): Yutian Wang, Pascal Pochet, Catherine A. Jenkins, Elke Arenholz, Gregor Bukalis, Sibylle Gemming, Manfred Helm, and Shengqiang Zhou We have investigated the variation in the magnetization of highly ordered pyrolytic graphite (HOPG) after neutron irradiation, which introduces defects in the bulk sample and consequently gives rise to a large magnetic signal. We observe strong paramagnetism in HOPG, increasing with the neutron flue... [Phys. Rev. B 90, 214435] Published Tue Dec 23, 2014

Schlagwort(e): Magnetism

Print ISSN: 1098-0121

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Thema: Physik

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