title: Strong Localization of Anionic Electrons at Interlayer for Electrical and Magnetic Anisotropy in Two-Dimensional Y2C Electride.
abstract: We have synthesized a single crystalline Y2C electride of centimeter-scale by floating-zone method and successfully characterized its anisotropic electrical and magnetic properties. In-plane resistivity upturn at low temperature together with anisotropic behavior of negative magnetoresistance is ascribed to the stronger suppression of spin fluctuation along in-plane than that along the c-axis, verifying the existence of magnetic moments preferred for the c-axis. A superior magnetic moment along the c-axis to that along the in-plane direction strongly demonstrates the anisotropic magnetism of Y2C electride containing a magnetically easy axis. It is clarified from the theoretical calculations that the anisotropic nature of the Y2C electride originates from strongly localized anionic electrons with an inherent magnetic anisotropy in the interlayer spaces.
authors.affiliation: Department of Energy Science, Sungkyunkwan University (SKKU) , Suwon 16419, Republic of Korea.|Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS) , Suwon 16419, Republic of Korea.
authors.forename: Jongho
authors.initials: J
authors.lastname: Park
authors.affiliation: Department of Physics, Kunsan National University , Gunsan 54150, Republic of Korea.
authors.forename: Kimoon
authors.initials: K
authors.lastname: Lee
authors.affiliation: Department of Energy Science, Sungkyunkwan University (SKKU) , Suwon 16419, Republic of Korea.|Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS) , Suwon 16419, Republic of Korea.
authors.forename: Seung Yong
authors.initials: SY
authors.lastname: Lee
authors.affiliation: Department of Physics & Astronomy and Center for Computational Sciences, Mississippi State University , Mississippi State, Mississippi 39792, United States.
authors.forename: Chandani N
authors.initials: CN
authors.lastname: Nandadasa
authors.affiliation: Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS) , Suwon 16419, Republic of Korea.
authors.forename: Sungho
authors.initials: S
authors.lastname: Kim
authors.affiliation: Department of Nano Applied Engineering, Kangwon National University , Chuncheon 24341, Republic of Korea.
authors.forename: Kyu Hyoung
authors.initials: KH
authors.lastname: Lee
authors.affiliation: Department of Energy Science, Sungkyunkwan University (SKKU) , Suwon 16419, Republic of Korea.|Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS) , Suwon 16419, Republic of Korea.
authors.forename: Young Hee
authors.initials: YH
authors.lastname: Lee
authors.affiliation: Materials Research Center for Element Strategy, Tokyo Institute of Technology , Yokohama 226-8503, Japan.
authors.forename: Hideo
authors.initials: H
authors.lastname: Hosono
authors.affiliation: Department of Physics & Astronomy and Center for Computational Sciences, Mississippi State University , Mississippi State, Mississippi 39792, United States.
authors.forename: Seong-Gon
authors.initials: SG
authors.lastname: Kim
authors.affiliation: Department of Energy Science, Sungkyunkwan University (SKKU) , Suwon 16419, Republic of Korea.
authors.forename: Sung Wng
authors.identifier: 0000-0002-4802-5421
authors.initials: SW
authors.lastname: Kim