Magnetization Study of the Valence Fluctuation Compound Sm3Te4 at Very Low Temperatures

Takashi Tayama; Kenichi Tenya; Hiroshi Amitsuka; Toshiro Sakakibara; Akira Ochiai; Takashi Suzuki

doi:10.1143/JPSJ.65.3467

Magnetization Study of the Valence Fluctuation Compound Sm₃Te₄ at Very Low Temperatures

Takashi Tayama, Kenichi Tenya, Hiroshi Amitsuka, Toshiro Sakakibara, Akira Ochiai, Takashi Suzuki

Research output: Contribution to journal › Article

8 Citations (Scopus)

Abstract

The ac susceptibility Χ_ac and the dc magnetization M(H, T) of single crystals of Sm₃Te₄ have been measured at temperatures as low as 70 mK. A cusp is found in Χ_ac at 1.3 K which is slightly lower than the temperature at which a broad peak of the specific heat was previously observed. Distinct irreversibility is observed in M(H, T) below ∼ 1.3 K. The results indicate that the Sm³⁺ moment undergoes a spin glass transition at T_g ∼ 1.3 K. It is likely that the two valence states of Sm²⁺(J = 0) and Sm²⁺(J = 5/2) are randomly frozen at low temperatures in the bcc lattice to effectively form a randomly diluted antiferromagnet.

Original language	English
Pages (from-to)	3467-3470
Number of pages	4
Journal	journal of the physical society of japan
Volume	65
Issue number	11
DOIs	https://doi.org/10.1143/JPSJ.65.3467
Publication status	Published - 1996 Jan 1
Externally published	Yes

Keywords

Magnetization measurement
SmTe
Spin-glass ordering
Valence fluctuation

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.65.3467

Fingerprint Dive into the research topics of 'Magnetization Study of the Valence Fluctuation Compound Sm<sub>3</sub>Te<sub>4</sub> at Very Low Temperatures'. Together they form a unique fingerprint.

Cite this

Tayama, T., Tenya, K., Amitsuka, H., Sakakibara, T., Ochiai, A., & Suzuki, T. (1996). Magnetization Study of the Valence Fluctuation Compound Sm₃Te₄ at Very Low Temperatures. journal of the physical society of japan, 65(11), 3467-3470. https://doi.org/10.1143/JPSJ.65.3467

@article{f9ef9aec74b94bee9f8a8356f4851b03,

title = "Magnetization Study of the Valence Fluctuation Compound Sm3Te4 at Very Low Temperatures",

abstract = "The ac susceptibility Χac and the dc magnetization M(H, T) of single crystals of Sm3Te4 have been measured at temperatures as low as 70 mK. A cusp is found in Χac at 1.3 K which is slightly lower than the temperature at which a broad peak of the specific heat was previously observed. Distinct irreversibility is observed in M(H, T) below ∼ 1.3 K. The results indicate that the Sm3+ moment undergoes a spin glass transition at Tg ∼ 1.3 K. It is likely that the two valence states of Sm2+(J = 0) and Sm2+(J = 5/2) are randomly frozen at low temperatures in the bcc lattice to effectively form a randomly diluted antiferromagnet.",

keywords = "Magnetization measurement, SmTe, Spin-glass ordering, Valence fluctuation",

author = "Takashi Tayama and Kenichi Tenya and Hiroshi Amitsuka and Toshiro Sakakibara and Akira Ochiai and Takashi Suzuki",

year = "1996",

month = jan,

day = "1",

doi = "10.1143/JPSJ.65.3467",

language = "English",

volume = "65",

pages = "3467--3470",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "11",

}

TY - JOUR

T1 - Magnetization Study of the Valence Fluctuation Compound Sm3Te4 at Very Low Temperatures

AU - Tayama, Takashi

AU - Tenya, Kenichi

AU - Amitsuka, Hiroshi

AU - Sakakibara, Toshiro

AU - Ochiai, Akira

AU - Suzuki, Takashi

PY - 1996/1/1

Y1 - 1996/1/1

N2 - The ac susceptibility Χac and the dc magnetization M(H, T) of single crystals of Sm3Te4 have been measured at temperatures as low as 70 mK. A cusp is found in Χac at 1.3 K which is slightly lower than the temperature at which a broad peak of the specific heat was previously observed. Distinct irreversibility is observed in M(H, T) below ∼ 1.3 K. The results indicate that the Sm3+ moment undergoes a spin glass transition at Tg ∼ 1.3 K. It is likely that the two valence states of Sm2+(J = 0) and Sm2+(J = 5/2) are randomly frozen at low temperatures in the bcc lattice to effectively form a randomly diluted antiferromagnet.

AB - The ac susceptibility Χac and the dc magnetization M(H, T) of single crystals of Sm3Te4 have been measured at temperatures as low as 70 mK. A cusp is found in Χac at 1.3 K which is slightly lower than the temperature at which a broad peak of the specific heat was previously observed. Distinct irreversibility is observed in M(H, T) below ∼ 1.3 K. The results indicate that the Sm3+ moment undergoes a spin glass transition at Tg ∼ 1.3 K. It is likely that the two valence states of Sm2+(J = 0) and Sm2+(J = 5/2) are randomly frozen at low temperatures in the bcc lattice to effectively form a randomly diluted antiferromagnet.

KW - Magnetization measurement

KW - SmTe

KW - Spin-glass ordering

KW - Valence fluctuation

UR - http://www.scopus.com/inward/record.url?scp=0030374523&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030374523&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.65.3467

DO - 10.1143/JPSJ.65.3467

M3 - Article

AN - SCOPUS:0030374523

VL - 65

SP - 3467

EP - 3470

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 11

ER -