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Title: Thermal hysteresis, threshold, and dynamics of charge-density waves at low temperatures in blue bronzes (K{sub 1{minus}x}A{sub x}){sub 0.3}MoO{sub 3} (A=Tl or Na)

Abstract

The temperature dependence of Ohmic resistance, threshold, and nonlinear voltage-current (V-I) characteristics were systematically studied in pure potassium/thallium blue bronzes and Tl/Na-doped alloy bronzes. It is found that the thermal hysteresis of low-field resistance at a lower-temperature regime behaves quite differently as compared to that at higher temperatures; doping with metallic Tl{sup +}/Na{sup +} ions has remarkable influences on the threshold electric-field properties of charge-density-wave (CDW) depinning, but has little effect on the low-temperature dynamics of CDW conduction below 30 K: the V-I characteristics in all samples still display a sharp breakdown transition. The results indicate that the low-temperature dynamical behavior of CDW depinning may not originate from the external impurities acting as weak pinning centers; rather, an internal mechanism concerning the changes of CDW structures in the presence of an applied electric field must be considered. The two different types of hysteresis behavior are strongly related to the correlation between the normal carriers and CDW configurations. {copyright} {ital 1996} {ital The American Physical Society}

Authors:
; ;  [1];  [1]
  1. Structure Research Laboratory, University of Science and Technology of China, Anhui, Hefei 230026, Peoples Republic of (China)
Publication Date:
OSTI Identifier:
450335
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 55; Journal Issue: 4; Other Information: PBD: Jan 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MOLYBDENUM OXIDES; ELECTRICAL PROPERTIES; POTASSIUM OXIDES; SODIUM OXIDES; THALLIUM OXIDES; CHARGE CARRIERS; DOMAIN STRUCTURE; MICROSTRUCTURE; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0013-0065 K

Citation Formats

Mingliang, T, Zhiqiang, M, Jing, S, Center of Advanced Studies in Science and Technology of Microstructure, Nanjing University, Nanjing 210008, Peoples Republic of, Yuheng, Z, and China Center of Advanced Science and Technology, P.O. Box 8730, Beijing 100083, Peoples Republic of. Thermal hysteresis, threshold, and dynamics of charge-density waves at low temperatures in blue bronzes (K{sub 1{minus}x}A{sub x}){sub 0.3}MoO{sub 3} (A=Tl or Na). United States: N. p., 1997. Web. doi:10.1103/PhysRevB.55.2107.
Mingliang, T, Zhiqiang, M, Jing, S, Center of Advanced Studies in Science and Technology of Microstructure, Nanjing University, Nanjing 210008, Peoples Republic of, Yuheng, Z, & China Center of Advanced Science and Technology, P.O. Box 8730, Beijing 100083, Peoples Republic of. Thermal hysteresis, threshold, and dynamics of charge-density waves at low temperatures in blue bronzes (K{sub 1{minus}x}A{sub x}){sub 0.3}MoO{sub 3} (A=Tl or Na). United States. https://doi.org/10.1103/PhysRevB.55.2107
Mingliang, T, Zhiqiang, M, Jing, S, Center of Advanced Studies in Science and Technology of Microstructure, Nanjing University, Nanjing 210008, Peoples Republic of, Yuheng, Z, and China Center of Advanced Science and Technology, P.O. Box 8730, Beijing 100083, Peoples Republic of. 1997. "Thermal hysteresis, threshold, and dynamics of charge-density waves at low temperatures in blue bronzes (K{sub 1{minus}x}A{sub x}){sub 0.3}MoO{sub 3} (A=Tl or Na)". United States. https://doi.org/10.1103/PhysRevB.55.2107.
@article{osti_450335,
title = {Thermal hysteresis, threshold, and dynamics of charge-density waves at low temperatures in blue bronzes (K{sub 1{minus}x}A{sub x}){sub 0.3}MoO{sub 3} (A=Tl or Na)},
author = {Mingliang, T and Zhiqiang, M and Jing, S and Center of Advanced Studies in Science and Technology of Microstructure, Nanjing University, Nanjing 210008, Peoples Republic of and Yuheng, Z and China Center of Advanced Science and Technology, P.O. Box 8730, Beijing 100083, Peoples Republic of},
abstractNote = {The temperature dependence of Ohmic resistance, threshold, and nonlinear voltage-current (V-I) characteristics were systematically studied in pure potassium/thallium blue bronzes and Tl/Na-doped alloy bronzes. It is found that the thermal hysteresis of low-field resistance at a lower-temperature regime behaves quite differently as compared to that at higher temperatures; doping with metallic Tl{sup +}/Na{sup +} ions has remarkable influences on the threshold electric-field properties of charge-density-wave (CDW) depinning, but has little effect on the low-temperature dynamics of CDW conduction below 30 K: the V-I characteristics in all samples still display a sharp breakdown transition. The results indicate that the low-temperature dynamical behavior of CDW depinning may not originate from the external impurities acting as weak pinning centers; rather, an internal mechanism concerning the changes of CDW structures in the presence of an applied electric field must be considered. The two different types of hysteresis behavior are strongly related to the correlation between the normal carriers and CDW configurations. {copyright} {ital 1996} {ital The American Physical Society}},
doi = {10.1103/PhysRevB.55.2107},
url = {https://www.osti.gov/biblio/450335}, journal = {Physical Review, B: Condensed Matter},
number = 4,
volume = 55,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1997},
month = {Wed Jan 01 00:00:00 EST 1997}
}