title: Only the chemical state of Indium changes in Mn-doped In3Sb1Te2 (Mn: 10 at.%) during multi-level resistance changes.
abstract: We fabricated and characterized the material with Mn (10 at.%: atomic percent) doped In3Sb1Te2 (MIST) using co-sputtering and synchrotron radiation, respectively. The MIST thin film showed phase-changes at 97 and 320 °C, with sheet resistances of ~10 kΩ(sq) (amorphous), ~0.2 kΩ(sq) (first phase-change), and ~10 Ω(sq) (second phase-change). MIST did not exhibit any chemical separation or increased structural instability during either phase-change, as determined with high-resolution x-ray photoelectron spectroscopy. Chemical state changes were only depended for In without concomitant changes of Sb and Te. Apparently, doped Mn atoms can be induced with movement of only In atoms.
authors.affiliation: Pohang Accelerator Laboratory, POSTECH, Pohang, 790-784, Republic of Korea.
authors.forename: Y M
authors.initials: YM
authors.lastname: Lee
authors.affiliation: Pohang Accelerator Laboratory, POSTECH, Pohang, 790-784, Republic of Korea.
authors.forename: D
authors.initials: D
authors.lastname: Ahn
authors.affiliation: Pohang Accelerator Laboratory, POSTECH, Pohang, 790-784, Republic of Korea.
authors.forename: J-Y
authors.initials: JY
authors.lastname: Kim
authors.affiliation: Energy Harvest-Storage Research Center (EHSRC) and Department of Physics, University of Ulsan, Ulsan 680-749, Republic of Korea.
authors.forename: Y S
authors.initials: YS
authors.lastname: Kim
authors.affiliation: Energy Harvest-Storage Research Center (EHSRC) and Department of Physics, University of Ulsan, Ulsan 680-749, Republic of Korea.
authors.forename: S
authors.initials: S
authors.lastname: Cho
authors.affiliation: Department of Physics, Yonsei University, Seoul 120-749, Republic of Korea.
authors.forename: M
authors.initials: M
authors.lastname: Ahn
authors.affiliation: Department of Physics, Yonsei University, Seoul 120-749, Republic of Korea.
authors.forename: M-H
authors.initials: MH
authors.lastname: Cho
authors.affiliation: Department of Material Science and Engineering, Hanyang University, Seoul 133-791, Republic of Korea.
authors.forename: M S
authors.initials: MS
authors.lastname: Jung
authors.affiliation: Department of Material Science and Engineering, Hanyang University, Seoul 133-791, Republic of Korea.
authors.forename: D K
authors.initials: DK
authors.lastname: Choi
authors.affiliation: Energy Materials and Surface Sciences Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, 904-0495, Japan.
authors.forename: M-C
authors.initials: MC
authors.lastname: Jung
authors.affiliation: Energy Materials and Surface Sciences Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, 904-0495, Japan.
authors.forename: Y B
authors.initials: YB
authors.lastname: Qi
references.citation: Nat Mater. 2004 Oct;3(10):703-8
references.pmid: 15359344
references.citation: Nat Mater. 2005 Apr;4(4):347-52
references.pmid: 15765107
references.citation: Nat Mater. 2007 Feb;6(2):90-1
references.pmid: 17268490