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Physics

Condensed matter

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Displaying 476 - 500 of 2291

Topological surface states of MnBi2Te4 at finite temperatures and at domain walls

February 24, 2021
Author(s)
Kevin F. Garrity, Sugata Chowdhury, Francesca Tavazza
MnBi2Te4 has recently been the subject of intensive study, due to the prediction of axion insulator, Weyl semimetal, and quantum anomalous Hall insulator phases, depending on the structure and magnetic ordering. Experimental results have con firmed some

The anisotropy in the optical constants of quartz crystals for soft X-rays

February 19, 2021
Author(s)
Anna Andrle, Phillipp H?nicke, John Vinson, Richard Quintanilha, Qais Saadeh, Sebastian Heidenreich, Frank Scholze, Victor Soltwisch
The refractive index of a y-cut SiO2 crystal surface is reconstructed from orientation-dependent soft X-ray reflectometry measurements in the energy range from 45 to 620 eV. Owing to the anisotropy of the crystal structure in the (100) and (001) directions

A NIST facility for Resonant Soft X-ray Scattering measuring nano-scale soft matter structure at NSLS-II

January 26, 2021
Author(s)
Eliot Gann, Glenn Holland, R Joseph Kline, Peter Beaucage, Dean DeLongchamp, Daniel A. Fischer, Brian Collins, Terry McAfee, Christopher McNeill, Thomas Crofts
We present the design and performance of a Resonant Soft X-ray Scattering (RSoXS) station designed for soft matter characterization built by the National institute of Standards and Technology (NIST) at the National Synchrotron Light Source-II (NSLS-II)

Thermomagnetic properties of Bi2Te3 single crystal in the temperature range from 55 K to 380 K

January 21, 2021
Author(s)
Md S. Akhanda, S. Emad Rezaei, Keivan Esfarjani, Sergiy Krylyuk, Albert Davydov, Mona Zebarjadi
Magneto-thermoelectric transport provides an understanding of coupled electron-hole-phonon current in topological materials and has applications in energy conversion and cooling. In this work, we investigate the effects of an external magnetic field ( 3 T)

Two-beam coupling by a hot electron nonlinearity

January 15, 2021
Author(s)
Jagannath Paul, Mario Miscuglio, Yaliang Gui, Volker Sorger, Jared Wahlstrand
Transparent conductive oxides such as indium tin oxide (ITO) have attracted much recent interest for their enhanced optical nonlinearity near the epsilon near zero wavelength. The nonlinearity of these materials is caused by laser heating of electrons

Chemical Bonding Governs Complex Magnetism in MnPt 5 P

January 14, 2021
Author(s)
Xin Gui, Ryan Klein, Craig Brown, Weiwei Xie
Subtle changes in chemical bonds may result in dramatic revolutions in magnetic properties in solid state materials. MnPt 5P, a new derivative of the rare-earth-free ferromagnetic MnPt5As, was discovered and is presented in this work. MnPt 5P was

Frustrated Heisenberg J 1 -J 2 Model within the Stretched Diamond Lattice of LiYbO 2

January 14, 2021
Author(s)
Mitchell M. Bordelon, Chunxiao Liu, Lorenzo Posthuma, Eric Kenney, M. J. Graf, Nicholas Butch, Arnab Banerjee, Stuart Calder, Leon Balents, Stephen Wilson
We investigate the magnetic properties of LiYbO 2, containing a three-dimensionally frustrated, diamondlike lattice via neutron scattering, magnetization, and heat capacity measurements. The stretched diamond network of Yb 3+ ions in LiYbO 2 enters a long

Field-Induced Topological Hall Effect and Double-Fan Spin Structure with a c-Axis Component in the Metallic Kagome Antiferromagnetic Compound YMn 6 Sn 6

January 12, 2021
Author(s)
Qi Wang, Kelly J. Neubauer, Chunruo Duan, Qiangwei Yin, Satoru Fujitsu, Hideo Hosono, Feng Ye, Rui Zhang, Songxue Chi, Kathryn L. Krycka, Hechang Lei, Pengcheng Dai
The geometrical frustration nature of the kagome lattice makes it a great host to flat electronic band, non-trivial topological properties, and novel magnetisms. Metallic kagome antiferromagnet YMn 6Sn 6 exhibits the topological Hall effect (THE) when an
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