Noise signatures of metastable resistivity states in ferromagnetic insulating manganite

Journal Article · Tue Jul 28 00:00:00 EDT 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4927288· OSTI ID:22494641

Fink-Finowicki, J.; Puźniak, R. ^[1]; Markovich, V. ^[2]; Jung, G. ^[1]

---

1. Institute of Physics, Polish Academy of Sciences, 02-668 Warsaw (Poland)
2. Department of Physics, Ben Gurion University of the Negev, 84105 Beer Sheva (Israel)

Pronounced noise signatures enabling one to discriminate metastable resistivity states in La{sub 0.86}Ca{sub 0.14}MnO{sub 3} single crystals have been observed. The normalized noise spectra for metastable resisitivity differ both in shape and magnitude, indicating that the metastable state is associated with transition of the electronic system into another local minimum of the potential landscape. Such scenario is consistent with freezing of the electronic system into a Coulomb glass state.

• OSTI ID: 22494641
• Journal Information: Journal of Applied Physics, Vol. 118, Issue 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COULOMB FIELD
FERROMAGNETIC MATERIALS
FREEZING
MANGANESE ALLOYS
METASTABLE STATES
MONOCRYSTALS
SPECTRA
SPIN GLASS STATE