corner
corner
APS » Journals » Phys. Rev. B » Volume 68 » Issue 14
< Previous Article | Next Article >

Phys. Rev. B 68, 144106 (2003) [7 pages]

Pressure- and photoinduced transformation into a metastable phase in RbMn[Fe(CN)6]

Download: PDF (183 kB) Buy this article Export: BibTeX or EndNote (RIS)

Y. Moritomo and M. Hanawa
Department of Applied Physics, Nagoya University, Nagoya 464-8603, Japan and PRESTO, JST

Y. Ohishi, K. Kato, and M. Takata
SPring-8/JASRI, Hyogo 679-5198, Japan

A. Kuriki
Department of Crystalline Materials Science, Nagoya University, Nagoya 464-8603, Japan

E. Nishibori and M. Sakata
Department of Applied Physics, Nagoya University, Nagoya 464-8603, Japan

S. Ohkoshi, H. Tokoro, and K. Hashimoto
Research Center for Advanced Science and Technology, University of Tokyo, Tokyo 153-8904, Japan

Received 25 February 2003; revised 14 May 2003; published 15 October 2003

Pressure and photoirradiation effects on the structural properties were investigated for a transition metal cyanide, RbMn[Fe(CN)6], with perovskitelike structure by means of high-angle resolved synchrotron-radiation x-ray powder diffraction. We have found that (1) photoirradiation by a 532-nm pulse laser at 91 K and (2) application of hydrostatic pressure to about 2 GPa at 300 K change the system from the tetragonal low-temperature phase (I4¯m2; Z=2) to a metastable state with different crystal symmetry (P4¯n2; Z=2). We discuss the difference between the photoinduced and pressure-induced processes and suggest possible origin for the photoinduced demagnetization.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.68.144106
DOI:
10.1103/PhysRevB.68.144106
PACS:
64.60.My, 61.50.Ks
 
< Previous Article | Next Article >