Specific heat and magnetic entropy of Na1-xV2O5

M. Markina; A. Vasil'ev; M. Isobe; Y. Ueda

doi:10.1016/S0304-8853(01)01035-6

Specific heat and magnetic entropy of Na_1-xV₂O₅

M. Markina
, A. Vasil'ev
, M. Isobe
, Y. Ueda

Lomonosov Moscow State University
The University of Tokyo

Research output: Contribution to journal › Article › peer-review

Abstract

The specific heat of Na_1-xV₂O₅ (x = 0, 0.01, 0.02, 0.03, 0.04) single crystalline samples was investigated in a temperature range 6-300K. With deviation from stoichiometry the phase transition temperature and the energy gap in the magnetic excitation spectrum rapidly decrease. The specific heat anomaly becomes smaller and is not observed for x ≥ 0.03. The magnetic entropy released at the critical temperature in NaV₂O₅∼7.7J/molK and decreases with x.

Original language	English
Pages (from-to)	735-737
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	242-245
DOIs	https://doi.org/10.1016/S0304-8853(01)01035-6
State	Published - Apr 2002
Externally published	Yes

Keywords

Entropy
Low-dimensional systems
Specific heat - temperature dependent

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10.1016/S0304-8853(01)01035-6

Cite this

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abstract = "The specific heat of Na1-xV2O5 (x = 0, 0.01, 0.02, 0.03, 0.04) single crystalline samples was investigated in a temperature range 6-300K. With deviation from stoichiometry the phase transition temperature and the energy gap in the magnetic excitation spectrum rapidly decrease. The specific heat anomaly becomes smaller and is not observed for x ≥ 0.03. The magnetic entropy released at the critical temperature in NaV2O5∼7.7J/molK and decreases with x.",

keywords = "Entropy, Low-dimensional systems, Specific heat - temperature dependent",

author = "M. Markina and A. Vasil'ev and M. Isobe and Y. Ueda",

year = "2002",

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doi = "10.1016/S0304-8853(01)01035-6",

language = "English",

volume = "242-245",

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T1 - Specific heat and magnetic entropy of Na1-xV2O5

AU - Markina, M.

AU - Vasil'ev, A.

AU - Isobe, M.

AU - Ueda, Y.

PY - 2002/4

Y1 - 2002/4

N2 - The specific heat of Na1-xV2O5 (x = 0, 0.01, 0.02, 0.03, 0.04) single crystalline samples was investigated in a temperature range 6-300K. With deviation from stoichiometry the phase transition temperature and the energy gap in the magnetic excitation spectrum rapidly decrease. The specific heat anomaly becomes smaller and is not observed for x ≥ 0.03. The magnetic entropy released at the critical temperature in NaV2O5∼7.7J/molK and decreases with x.

AB - The specific heat of Na1-xV2O5 (x = 0, 0.01, 0.02, 0.03, 0.04) single crystalline samples was investigated in a temperature range 6-300K. With deviation from stoichiometry the phase transition temperature and the energy gap in the magnetic excitation spectrum rapidly decrease. The specific heat anomaly becomes smaller and is not observed for x ≥ 0.03. The magnetic entropy released at the critical temperature in NaV2O5∼7.7J/molK and decreases with x.

KW - Entropy

KW - Low-dimensional systems

KW - Specific heat - temperature dependent

UR - https://www.scopus.com/pages/publications/0036544076

U2 - 10.1016/S0304-8853(01)01035-6

DO - 10.1016/S0304-8853(01)01035-6

M3 - Article

AN - SCOPUS:0036544076

SN - 0304-8853

VL - 242-245

SP - 735

EP - 737

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

ER -

Specific heat and magnetic entropy of Na_1-xV₂O₅

Abstract

Keywords

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