Pressure-Induced Charge-Order Melting and Reentrant Charge Carrier Localization in the Mixed-Valent Pb3Rh7O15

Li, Yan; Sun, Zhao; Cai, Jia -Wei; Sun, Jian -Ping; Wang, Bo -Sen; Zhao, Zhi -Ying; Uwatoko, Y.; Yan, Jia -Qiang; Cheng, Jin -Guang

doi:10.1088/0256-307X/34/8/087201

Title: Pressure-Induced Charge-Order Melting and Reentrant Charge Carrier Localization in the Mixed-Valent Pb₃Rh₇O₁₅

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Abstract

Here, the mixed-valent Pb$${}_{3}$$Rh $${}_{7}$$O$${}_{15}$$ undergoes a Verwey-type transition at $${T}_{{\rm{v}}}\approx 180$$ K, below which the development of Rh$${}^{3+}$$ /Rh$${}^{4+}$$ charge order induces an abrupt conductor-to-insulator transition in resistivity. Here we investigate the effect of pressure on the Verwey-type transition of Pb$${}_{3}$$Rh$${}_{7}$$O$${}_{15}$$ by measuring its electrical resistivity under hydrostatic pressures up to 8 GPa with a cubic anvil cell apparatus. We find that the application of high pressure can suppress the Verwey-type transition around 3 GPa, above which a metallic state is realized at temperatures below ~70 K, suggesting the melting of charge order by pressure. Interestingly, the low-temperature metallic region shrinks gradually upon further increasing pressure and disappears completely at P > 7 GPa, which indicates that the charge carriers in Pb$${}_{3}$$Rh$${}_{7}$$O$${}_{15}$$ undergo a reentrant localization under higher pressures. We have constructed a temperature-pressure phase diagram for Pb$${}_{3}$$Rh$${}_{7}$$O$${}_{15}$$ and compared to that of Fe$${}_{3}$$O$${}_{4}$$, showing an archetype Verwey transition.

Authors:

Li, Yan ^[1]; Sun, Zhao ^[1]; Cai, Jia -Wei ^[1]; Sun, Jian -Ping ^[2]; Wang, Bo -Sen ^[2]; Zhao, Zhi -Ying ^[3]; Uwatoko, Y. ^[4];

^[5]; Cheng, Jin -Guang ^[2]

Beijing Institute of Petrochemical Technology, Beijing (China)
Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Univ. of Tokyo, Chiba (Japan)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Sat Jul 01 00:00:00 EDT 2017

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1399944

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Chinese Physics Letters

Additional Journal Information:: Journal Volume: 34; Journal Issue: 8; Journal ID: ISSN 0256-307X

Publisher:: IOP Publishing

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Li, Yan, Sun, Zhao, Cai, Jia -Wei, Sun, Jian -Ping, Wang, Bo -Sen, Zhao, Zhi -Ying, Uwatoko, Y., Yan, Jia -Qiang, and Cheng, Jin -Guang. Pressure-Induced Charge-Order Melting and Reentrant Charge Carrier Localization in the Mixed-Valent Pb3Rh7O15.  United States: N. p., 2017. 
Web.  doi:10.1088/0256-307X/34/8/087201.

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                    Li, Yan, Sun, Zhao, Cai, Jia -Wei, Sun, Jian -Ping, Wang, Bo -Sen, Zhao, Zhi -Ying, Uwatoko, Y., Yan, Jia -Qiang, & Cheng, Jin -Guang. Pressure-Induced Charge-Order Melting and Reentrant Charge Carrier Localization in the Mixed-Valent Pb3Rh7O15.  United States.  https://doi.org/10.1088/0256-307X/34/8/087201

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                    Li, Yan, Sun, Zhao, Cai, Jia -Wei, Sun, Jian -Ping, Wang, Bo -Sen, Zhao, Zhi -Ying, Uwatoko, Y., Yan, Jia -Qiang, and Cheng, Jin -Guang. Sat .  
"Pressure-Induced Charge-Order Melting and Reentrant Charge Carrier Localization in the Mixed-Valent Pb3Rh7O15".  United States.  https://doi.org/10.1088/0256-307X/34/8/087201.  https://www.osti.gov/servlets/purl/1399944.

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@article{osti_1399944,

  title        = {Pressure-Induced Charge-Order Melting and Reentrant Charge Carrier Localization in the Mixed-Valent Pb3Rh7O15},

  author       = {Li, Yan and Sun, Zhao and Cai, Jia -Wei and Sun, Jian -Ping and Wang, Bo -Sen and Zhao, Zhi -Ying and Uwatoko, Y. and Yan, Jia -Qiang and Cheng, Jin -Guang},

  abstractNote = {Here, the mixed-valent Pb${}_{3}$Rh ${}_{7}$O${}_{15}$ undergoes a Verwey-type transition at ${T}_{{\rm{v}}}\approx 180$ K, below which the development of Rh${}^{3+}$ /Rh${}^{4+}$ charge order induces an abrupt conductor-to-insulator transition in resistivity. Here we investigate the effect of pressure on the Verwey-type transition of Pb${}_{3}$Rh${}_{7}$O${}_{15}$ by measuring its electrical resistivity under hydrostatic pressures up to 8 GPa with a cubic anvil cell apparatus. We find that the application of high pressure can suppress the Verwey-type transition around 3 GPa, above which a metallic state is realized at temperatures below ~70 K, suggesting the melting of charge order by pressure. Interestingly, the low-temperature metallic region shrinks gradually upon further increasing pressure and disappears completely at P > 7 GPa, which indicates that the charge carriers in Pb${}_{3}$Rh${}_{7}$O${}_{15}$ undergo a reentrant localization under higher pressures. We have constructed a temperature-pressure phase diagram for Pb${}_{3}$Rh${}_{7}$O${}_{15}$ and compared to that of Fe${}_{3}$O${}_{4}$, showing an archetype Verwey transition.},

  doi          = {10.1088/0256-307X/34/8/087201},

  journal      = {Chinese Physics Letters},

  number       = 8,

  volume       = 34,

  place        = {United States},

  year         = {Sat Jul 01 00:00:00 EDT 2017},

  month        = {Sat Jul 01 00:00:00 EDT 2017}

}

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Title: Pressure-Induced Charge-Order Melting and Reentrant Charge Carrier Localization in the Mixed-Valent Pb3Rh7O15

Abstract

Citation Formats

Title: Pressure-Induced Charge-Order Melting and Reentrant Charge Carrier Localization in the Mixed-Valent Pb₃Rh₇O₁₅