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Title: Interpretation of Ground Temperature Anomalies in Hydrothermal Discharge Areas: GROUND TEMPERATURE ANOMALIES

Authors:
 [1];  [1]; ORCiD logo [1]
  1. Department of Geological Sciences, University of Idaho, Moscow ID USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1411978
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Water Resources Research
Additional Journal Information:
Journal Volume: 53; Journal Issue: 12; Related Information: CHORUS Timestamp: 2018-01-25 03:31:15; Journal ID: ISSN 0043-1397
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
United States
Language:
English

Citation Formats

Price, Adam N., Lindsey, Cary R., and Fairley, Jerry P. Interpretation of Ground Temperature Anomalies in Hydrothermal Discharge Areas: GROUND TEMPERATURE ANOMALIES. United States: N. p., 2017. Web. doi:10.1002/2017WR021077.
Price, Adam N., Lindsey, Cary R., & Fairley, Jerry P. Interpretation of Ground Temperature Anomalies in Hydrothermal Discharge Areas: GROUND TEMPERATURE ANOMALIES. United States. doi:10.1002/2017WR021077.
Price, Adam N., Lindsey, Cary R., and Fairley, Jerry P. Tue . "Interpretation of Ground Temperature Anomalies in Hydrothermal Discharge Areas: GROUND TEMPERATURE ANOMALIES". United States. doi:10.1002/2017WR021077.
@article{osti_1411978,
title = {Interpretation of Ground Temperature Anomalies in Hydrothermal Discharge Areas: GROUND TEMPERATURE ANOMALIES},
author = {Price, Adam N. and Lindsey, Cary R. and Fairley, Jerry P.},
abstractNote = {},
doi = {10.1002/2017WR021077},
journal = {Water Resources Research},
number = 12,
volume = 53,
place = {United States},
year = {Tue Dec 05 00:00:00 EST 2017},
month = {Tue Dec 05 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on December 5, 2018
Publisher's Accepted Manuscript

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  • Graphical abstract: Temperature variation of dielectric constant of Bi{sub 0.9}Ca{sub 0.05}Sm{sub 0.05}FeO{sub 3} at various frequencies as a function of temperature indicating anomalies at 420 and 540 K. - Highlights: • Substitution of Sm ions for Bi enhances the saturation magnetization of BiFeO{sub 3}. • XPS studies indicate the creation of oxygen vacancies upon Ca substitution. • Dielectric measurements show dielectric anomalies at high temperatures. • Raman spectra at high temperatures confirm the dielectric anomaly temperatures. - Abstract: Enhanced ferromagnetic properties and high temperature dielectric anomalies in the temperature range of 300–873 K in Bi{sub 0.9}Ca{sub 0.05}Sm{sub 0.05}FeO{sub 3} (BCSFO)more » prepared by hydrothermal method are reported. BiFeO{sub 3} is seen to crystallize in rhombohedrally distorted perovskite structure without any impurity phase. Substitution of small amount of Ca and Sm (Bi{sub 0.9}Ca{sub 0.05}Sm{sub 0.05}FeO{sub 3}) leads to increase in the lattice constant values and formation of small amount of secondary phase. Magnetization curve of pure BFO indicates very weak ferromagnetism combined with antiferromagnetic nature of the samples. Whereas, BCSFO sample shows very clear and enhanced ferromagnetic nature. Saturation magnetization and Neel’s temperature values are found to be 4.36 emu/g and 664 K, respectively. X-ray photoelectron spectroscopy indicates the creation of oxygen vacancies upon Ca substitution in Bi site. Dielectric anomalies at 420 and 540 K were observed for Bi{sub 0.9}Ca{sub 0.05}Sm{sub 0.05}FeO{sub 3} from the temperature variation of dielectric constant and specific heat capacity measurements. Observation of dielectric anomalies in pure BiFeO{sub 3} sample reveals that the origin of dielectric peaks is purely from the primary phase. Raman spectroscopy study indicates a clear shift and broadening of A modes (between 100 and 200 cm{sup −1}) at the dielectric anomaly temperatures supporting the observed dielectric anomalies.« less
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