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  1. AU="Luke, Graeme"
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  1. Book ; Conference proceedings: 12th International Conference on Muon Spin Rotation, Relaxation and Resonance (μSR 2011)

    Luke, Graeme M

    Cancun, Mexico, 16 - 20 May 2011

    (Physics procedia ; 30)

    2014  

    Title variant mysr musr twelfth
    Event/congress International Conference on Muon Spin Rotation, Relaxation and Resonance (12, 2011.05.16-20, Cancun) ; μSR (12, 2011.05.16-20, Cancun)
    Author's details ed.: G. M. Luke
    Series title Physics procedia ; 30
    Language English
    Size 278 S., Ill., graph. Darst.
    Publisher Curran
    Publishing place Red Hook, NY
    Document type Book ; Conference proceedings
    Note Literaturangaben
    ISBN 9781627487467 ; 1627487468
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  2. Article ; Online: Dichotomous dynamics of magnetic monopole fluids.

    Hsu, Chun-Chih / Takahashi, Hiroto / Jerzembeck, Fabian / Dasini, Jahnatta / Carroll, Chaia / Dusad, Ritika / Ward, Jonathan / Dawson, Catherine / Sharma, Sudarshan / Luke, Graeme M / Blundell, Stephen J / Castelnovo, Claudio / Hallén, Jonathan N / Moessner, Roderich / Davis, J C Séamus

    Proceedings of the National Academy of Sciences of the United States of America

    2024  Volume 121, Issue 21, Page(s) e2320384121

    Abstract: A recent advance in the study of emergent magnetic monopoles was the discovery that monopole motion is restricted to dynamical fractal trajectories [J. N. ... ...

    Abstract A recent advance in the study of emergent magnetic monopoles was the discovery that monopole motion is restricted to dynamical fractal trajectories [J. N. Hallén
    Language English
    Publishing date 2024-05-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.2320384121
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Visualizing the atomic-scale origin of metallic behavior in Kondo insulators.

    Pirie, Harris / Mascot, Eric / Matt, Christian E / Liu, Yu / Chen, Pengcheng / Hamidian, M H / Saha, Shanta / Wang, Xiangfeng / Paglione, Johnpierre / Luke, Graeme / Goldhaber-Gordon, David / Hirjibehedin, Cyrus F / Davis, J C Séamus / Morr, Dirk K / Hoffman, Jennifer E

    Science (New York, N.Y.)

    2023  Volume 379, Issue 6638, Page(s) 1214–1218

    Abstract: A Kondo lattice is often electrically insulating at low temperatures. However, several recent experiments have detected signatures of bulk metallicity within this Kondo insulating phase. In this study, we visualized the real-space charge landscape within ...

    Abstract A Kondo lattice is often electrically insulating at low temperatures. However, several recent experiments have detected signatures of bulk metallicity within this Kondo insulating phase. In this study, we visualized the real-space charge landscape within a Kondo lattice with atomic resolution using a scanning tunneling microscope. We discovered nanometer-scale puddles of metallic conduction electrons centered around uranium-site substitutions in the heavy-fermion compound uranium ruthenium silicide (URu
    Language English
    Publishing date 2023-03-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 128410-1
    ISSN 1095-9203 ; 0036-8075
    ISSN (online) 1095-9203
    ISSN 0036-8075
    DOI 10.1126/science.abq5375
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: The Highly Frustrated 5d

    Yuan, Fang / Cronkwright, Zachery W / Lussier, Joey A / Wiebe, Christopher R / Dube, Paul A / Thompson, Corey M / Munsie, Timothy J S / Luke, Graeme M / Greedan, John E

    Inorganic chemistry

    2021  Volume 60, Issue 21, Page(s) 16652–16657

    Abstract: The synthesis and characterization of the double perovskite ... ...

    Abstract The synthesis and characterization of the double perovskite SrLaLiOsO
    Language English
    Publishing date 2021-10-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.1c02521
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Characterization of a Disordered above Room Temperature Skyrmion Material Co

    Henderson, Melissa E / Beare, James / Sharma, Sudarshan / Bleuel, Markus / Clancy, Pat / Cory, David G / Huber, Michael G / Marjerrison, Casey A / Pula, Mathew / Sarenac, Dusan / Smith, Evan M / Zhernenkov, Kirill / Luke, Graeme M / Pushin, Dmitry A

    Materials (Basel, Switzerland)

    2021  Volume 14, Issue 16

    Abstract: Topologically nontrivial spin textures host great promise for future spintronic applications. Skyrmions in particular are of burgeoning interest owing to their nanometric size, topological protection, and high mobility via ultra-low current densities. It ...

    Abstract Topologically nontrivial spin textures host great promise for future spintronic applications. Skyrmions in particular are of burgeoning interest owing to their nanometric size, topological protection, and high mobility via ultra-low current densities. It has been previously reported through magnetic susceptibility, microscopy, and scattering techniques that Co8Zn8Mn4 forms an above room temperature triangular skyrmion lattice. Here, we report the synthesis procedure and characterization of a polycrystalline Co8Zn8Mn4 disordered bulk sample. We employ powder X-ray diffraction and backscatter Laue diffraction as characterization tools of the crystallinity of the samples, while magnetic susceptibility and Small Angle Neutron Scattering (SANS) measurements are performed to study the skyrmion phase. Magnetic susceptibility measurements show a dip anomaly in the magnetization curves, which persists over a range of approximately 305 K-315 K. SANS measurements reveal a rotationally disordered polydomain skyrmion lattice. Applying a symmetry-breaking magnetic field sequence, we were able to orient and order the previously jammed state to yield the prototypical hexagonal diffraction patterns with secondary diffraction rings. This emergence of the skyrmion order serves as a unique demonstration of the fundamental interplay of structural disorder and anisotropy in stabilizing the thermal equilibrium phase.
    Language English
    Publishing date 2021-08-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma14164689
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Two superconducting states with broken time-reversal symmetry in FeSe

    Matsuura, Kohei / Roppongi, Masaki / Qiu, Mingwei / Sheng, Qi / Cai, Yipeng / Yamakawa, Kohtaro / Guguchia, Zurab / Day, Ryan P / Kojima, Kenji M / Damascelli, Andrea / Sugimura, Yuichi / Saito, Mikihiko / Takenaka, Takaaki / Ishihara, Kota / Mizukami, Yuta / Hashimoto, Kenichiro / Gu, Yilun / Guo, Shengli / Fu, Licheng /
    Zhang, Zheneng / Ning, Fanlong / Zhao, Guoqiang / Dai, Guangyang / Jin, Changqing / Beare, James W / Luke, Graeme M / Uemura, Yasutomo J / Shibauchi, Takasada

    Proceedings of the National Academy of Sciences of the United States of America

    2023  Volume 120, Issue 21, Page(s) e2208276120

    Abstract: Iron-chalcogenide superconductors ... ...

    Abstract Iron-chalcogenide superconductors FeSe
    Language English
    Publishing date 2023-05-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.2208276120
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Magnetic monopole noise.

    Dusad, Ritika / Kirschner, Franziska K K / Hoke, Jesse C / Roberts, Benjamin R / Eyal, Anna / Flicker, Felix / Luke, Graeme M / Blundell, Stephen J / Davis, J C Séamus

    Nature

    2019  Volume 571, Issue 7764, Page(s) 234–239

    Abstract: ... Magnetic ... ...

    Abstract Magnetic monopoles
    Language English
    Publishing date 2019-07-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 120714-3
    ISSN 1476-4687 ; 0028-0836
    ISSN (online) 1476-4687
    ISSN 0028-0836
    DOI 10.1038/s41586-019-1358-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Real-space localization and quantification of hole distribution in chain-ladder Sr3Ca11Cu24O41 superconductor.

    Bugnet, Matthieu / Löffler, Stefan / Hawthorn, David / Dabkowska, Hanna A / Luke, Graeme M / Schattschneider, Peter / Sawatzky, George A / Radtke, Guillaume / Botton, Gianluigi A

    Science advances

    2016  Volume 2, Issue 3, Page(s) e1501652

    Abstract: Understanding the physical properties of the chain-ladder Sr3Ca11Cu24O41 hole-doped superconductor has been precluded by the unknown hole distribution among chains and ladders. We use electron energy-loss spectrometry (EELS) in a scanning transmission ... ...

    Abstract Understanding the physical properties of the chain-ladder Sr3Ca11Cu24O41 hole-doped superconductor has been precluded by the unknown hole distribution among chains and ladders. We use electron energy-loss spectrometry (EELS) in a scanning transmission electron microscope (STEM) at atomic resolution to directly separate the contributions of chains and ladders and to unravel the hole distribution from the atomic scale variations of the O-K near-edge structures. The experimental data unambiguously demonstrate that most of the holes lie within the chain layers. A quantitative interpretation supported by inelastic scattering calculations shows that about two holes are located in the ladders, and about four holes in the chains, shedding light on the electronic structure of Sr3Ca11Cu24O41. Combined atomic resolution STEM-EELS and inelastic scattering calculations is demonstrated as a powerful approach toward a quantitative understanding of the electronic structure of cuprate superconductors, offering new possibilities for elucidating their physical properties.
    MeSH term(s) Crystallography, X-Ray ; Metals/chemistry ; Models, Molecular ; Nanostructures/chemistry ; Superconductivity
    Chemical Substances Metals
    Language English
    Publishing date 2016-03-25
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2810933-8
    ISSN 2375-2548 ; 2375-2548
    ISSN (online) 2375-2548
    ISSN 2375-2548
    DOI 10.1126/sciadv.1501652
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Supercooled spin liquid state in the frustrated pyrochlore Dy2Ti2O7.

    Kassner, Ethan R / Eyvazov, Azar B / Pichler, Benjamin / Munsie, Timothy J S / Dabkowska, Hanna A / Luke, Graeme M / Davis, J C Séamus

    Proceedings of the National Academy of Sciences of the United States of America

    2015  Volume 112, Issue 28, Page(s) 8549–8554

    Abstract: A "supercooled" liquid develops when a fluid does not crystallize upon cooling below its ordering temperature. Instead, the microscopic relaxation times diverge so rapidly that, upon further cooling, equilibration eventually becomes impossible and glass ... ...

    Abstract A "supercooled" liquid develops when a fluid does not crystallize upon cooling below its ordering temperature. Instead, the microscopic relaxation times diverge so rapidly that, upon further cooling, equilibration eventually becomes impossible and glass formation occurs. Classic supercooled liquids exhibit specific identifiers including microscopic relaxation times diverging on a Vogel-Tammann-Fulcher (VTF) trajectory, a Havriliak-Negami (HN) form for the dielectric function ε(ω, T), and a general Kohlrausch-Williams-Watts (KWW) form for time-domain relaxation. Recently, the pyrochlore Dy2Ti2O7 has become of interest because its frustrated magnetic interactions may, in theory, lead to highly exotic magnetic fluids. However, its true magnetic state at low temperatures has proven very difficult to identify unambiguously. Here, we introduce high precision, boundary-free magnetization transport techniques based upon toroidal geometries and gain an improved understanding of the time- and frequency-dependent magnetization dynamics of Dy2Ti2O7. We demonstrate a virtually universal HN form for the magnetic susceptibility χ (ω, T), a general KWW form for the realtime magnetic relaxation, and a divergence of the microscopic magnetic relaxation rates with the VTF trajectory. Low-temperature Dy2Ti2O7 therefore exhibits the characteristics of a supercooled magnetic liquid. One implication is that this translationally invariant lattice of strongly correlated spins may be evolving toward an unprecedented magnetic glass state, perhaps due to many-body localization of spin.
    Language English
    Publishing date 2015-07-14
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.1511006112
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Synthesis, Crystal Structure, and Magnetic Properties of the Highly Frustrated Orthorhombic Li

    Milam-Guerrero, JoAnna / Bloed, Charles J / Nguyen, Phuong-Hieu T / Tran, Gia T / Martin, William P / Papakostas, Demetrios V / Toro, Jefferson / Wilson, Murray N / Carlo, Jeremy P / Luke, Graeme M / Melot, Brent C / Gu, Jiyeong / Derakhshan, Shahab

    Inorganic chemistry

    2017  Volume 56, Issue 19, Page(s) 11633–11639

    Abstract: In an effort to understand the structure-property relationship in magnetically frustrated systems, an orthorhombic analog of the S = 1/2 Re-based oxide ... ...

    Abstract In an effort to understand the structure-property relationship in magnetically frustrated systems, an orthorhombic analog of the S = 1/2 Re-based oxide Li
    Language English
    Publishing date 2017-10-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.7b01537
    Database MEDical Literature Analysis and Retrieval System OnLINE

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