R
Randy Scott Fishman
Researcher at Oak Ridge National Laboratory
Publications - 209
Citations - 2403
Randy Scott Fishman is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Spin wave & Antiferromagnetism. The author has an hindex of 22, co-authored 198 publications receiving 2150 citations. Previous affiliations of Randy Scott Fishman include Ohio State University & University of Tennessee.
Papers
More filters
Journal ArticleDOI
Continuous metal-insulator transition in the pyrochlore Cd 2 Os 2 O 7
David Mandrus,David Mandrus,James R Thompson,James R Thompson,R. Gaál,László Forró,Jeff C. Bryan,Bryan C. Chakoumakos,Lilia M. Woods,Lilia M. Woods,Brian C. Sales,Randy Scott Fishman,Veerle Keppens +12 more
TL;DR: In this article, the authors characterized the metal-insulator transition (MIT) near 226 K using x-ray diffraction, resistivity at ambient and high pressure, specific heat, magnetization, thermopower, Hall coefficient, and thermal conductivity.
Journal ArticleDOI
Magnetic Dispersion and Anisotropy in Multiferroic BiFeO3
Masaaki Matsuda,Randy Scott Fishman,Tao Hong,Chul-Ho Lee,Tomoharu Ushiyama,Yuji Yanagisawa,Yasuhide Tomioka,Toshimitsu Ito +7 more
TL;DR: The direct observation of the gaps enables us to accurately determine the Dzyaloshinskii-Moriya (DM) interaction and the single ion anisotropy in multiferroic BiFeO3.
Journal ArticleDOI
Magnetic interactions in the geometrically frustrated triangular lattice antiferromagnet CuFeO2
Feng Ye,Jaime A. Fernandez-Baca,Jaime A. Fernandez-Baca,Randy Scott Fishman,Yang Ren,H. J. Kang,H. J. Kang,Yiming Qiu,Yiming Qiu,Takashi Kimura +9 more
TL;DR: In this paper, the spin-wave excitations of the geometrically frustrated triangular lattice antiferromagnet CuFeO2 have been measured using high resolution inelastic neutron scattering.
Journal ArticleDOI
Optical Diode Effect at Spin-Wave Excitations of the Room-Temperature Multiferroic BiFeO_{3}.
István Kézsmárki,Urmas Nagel,Sándor Bordács,Randy Scott Fishman,Jun Hee Lee,H. T. Yi,Sang-Wook Cheong,Toomas Rõõm +7 more
TL;DR: Strong unidirectional transmission in the room-temperature multiferroic BiFeO_{3} over the gigahertz-terahertz frequency range is reported, an important step toward the realization of optical diodes supplemented by the ability to switch the transmission direction with a magnetic or electric field.
Journal ArticleDOI
Spin state and spectroscopic modes of multiferroic BiFeO 3
TL;DR: In this paper, an additional Dzyaloshinskii-Moriya (DM) interaction along with easy-axis anisotropy along the direction of the electric polarization was shown to produce cycloidal harmonics that split the high-frequency and low-frequency modes at 2.49 and 2.67 meV, respectively.