Loading…
Low-frequency method for magnetothermopower and Nernst effect measurements on single crystal samples at low temperatures and high magnetic fields
We describe an alternating current method for the measurement of the longitudinal (S xx ) and transverse (S xy , i.e., Nernst) thermopower of millimeter-size crystal samples at low temperatures (T
Saved in:
| Published in: | Review of scientific instruments 2001-05, Vol.72 (5), p.2392-2397 |
|---|---|
| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| cited_by | cdi_FETCH-LOGICAL-c363t-89926edb4002041586145413ec9e6617e5cf9e48e3e08f901f3374080769837e3 |
|---|---|
| cites | cdi_FETCH-LOGICAL-c363t-89926edb4002041586145413ec9e6617e5cf9e48e3e08f901f3374080769837e3 |
| container_end_page | 2397 |
| container_issue | 5 |
| container_start_page | 2392 |
| container_title | Review of scientific instruments |
| container_volume | 72 |
| creator | Choi, E. S. Brooks, J. S. Qualls, J. S. Song, Y. S. |
| description | We describe an alternating current method for the measurement of the longitudinal
(S
xx
)
and transverse
(S
xy
,
i.e., Nernst) thermopower of millimeter-size crystal samples at low temperatures
(T |
| doi_str_mv | 10.1063/1.1353192 |
| format | article |
| fullrecord | <record><control><sourceid>scitation_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1063_1_1353192</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>rsi</sourcerecordid><originalsourceid>FETCH-LOGICAL-c363t-89926edb4002041586145413ec9e6617e5cf9e48e3e08f901f3374080769837e3</originalsourceid><addsrcrecordid>eNp90LFOwzAQBmALgUQpDLyBV5BS7Nhx7BFVUJAqWGCOjHNughI72C5VH4M3JtAKBiRuueW7_6QfoXNKZpQIdkVnlBWMqvwATSiRKitFzg7RhBDGM1FyeYxOYnwl4xSUTtDH0m8yG-BtDc5scQ-p8TW2PuBerxwknxoIvR_8BgLWrsYPEFxMGKwFk0av4zpADy5F7B2OrVt1gE3YxqQ7HHU_dBCxTrjzG5ygHyDoNF7E77CmXTX7R63BtoWujqfoyOouwtl-T9Hz7c3T_C5bPi7u59fLzDDBUiaVygXUL5yQnHBaSEF5wSkDo0AIWkJhrAIugQGRVhFqGSs5kaQUSrIS2BRd7HJN8DEGsNUQ2l6HbUVJ9dVlRat9l6O93Nlo2qRT690PfvfhF1ZDbf_Df5M_Ae9nhRs</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Low-frequency method for magnetothermopower and Nernst effect measurements on single crystal samples at low temperatures and high magnetic fields</title><source>American Institute of Physics (AIP) Publications</source><source>American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)</source><creator>Choi, E. S. ; Brooks, J. S. ; Qualls, J. S. ; Song, Y. S.</creator><creatorcontrib>Choi, E. S. ; Brooks, J. S. ; Qualls, J. S. ; Song, Y. S.</creatorcontrib><description>We describe an alternating current method for the measurement of the longitudinal
(S
xx
)
and transverse
(S
xy
,
i.e., Nernst) thermopower of millimeter-size crystal samples at low temperatures
(T<1
K) and high magnetic fields
(B∼30
T). A low-frequency (33 mHz) heating method is used to increase the resolution and to determine the temperature gradient reliably in high magnetic fields. Samples are mounted between two thermal blocks which are heated by a sinusoidal frequency
f
0
with a π/2 phase difference. The phase difference between two heater currents gives a temperature gradient at
2f
0
.
The corresponding thermopower and Nernst effect signals are extracted by using a digital signal processing method due to the low frequency of the measurement. An important component of the method involves a superconducting link,
YBa
2
Cu
3
O
7+δ
,
which is mounted in parallel with sample to remove the background magnetothermopower of the lead wires. The method is demonstrated for the quasi-two-dimensional organic conductor
α-(
BEDT–TTF)
2
KHg(SCN)
4
,
which exhibits a complex, magnetic field dependent ground state above 22.5 T at low temperatures.</description><identifier>ISSN: 0034-6748</identifier><identifier>EISSN: 1089-7623</identifier><identifier>DOI: 10.1063/1.1353192</identifier><identifier>CODEN: RSINAK</identifier><language>eng</language><ispartof>Review of scientific instruments, 2001-05, Vol.72 (5), p.2392-2397</ispartof><rights>American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c363t-89926edb4002041586145413ec9e6617e5cf9e48e3e08f901f3374080769837e3</citedby><cites>FETCH-LOGICAL-c363t-89926edb4002041586145413ec9e6617e5cf9e48e3e08f901f3374080769837e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/rsi/article-lookup/doi/10.1063/1.1353192$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>314,780,782,784,795,27924,27925,76383</link.rule.ids></links><search><creatorcontrib>Choi, E. S.</creatorcontrib><creatorcontrib>Brooks, J. S.</creatorcontrib><creatorcontrib>Qualls, J. S.</creatorcontrib><creatorcontrib>Song, Y. S.</creatorcontrib><title>Low-frequency method for magnetothermopower and Nernst effect measurements on single crystal samples at low temperatures and high magnetic fields</title><title>Review of scientific instruments</title><description>We describe an alternating current method for the measurement of the longitudinal
(S
xx
)
and transverse
(S
xy
,
i.e., Nernst) thermopower of millimeter-size crystal samples at low temperatures
(T<1
K) and high magnetic fields
(B∼30
T). A low-frequency (33 mHz) heating method is used to increase the resolution and to determine the temperature gradient reliably in high magnetic fields. Samples are mounted between two thermal blocks which are heated by a sinusoidal frequency
f
0
with a π/2 phase difference. The phase difference between two heater currents gives a temperature gradient at
2f
0
.
The corresponding thermopower and Nernst effect signals are extracted by using a digital signal processing method due to the low frequency of the measurement. An important component of the method involves a superconducting link,
YBa
2
Cu
3
O
7+δ
,
which is mounted in parallel with sample to remove the background magnetothermopower of the lead wires. The method is demonstrated for the quasi-two-dimensional organic conductor
α-(
BEDT–TTF)
2
KHg(SCN)
4
,
which exhibits a complex, magnetic field dependent ground state above 22.5 T at low temperatures.</description><issn>0034-6748</issn><issn>1089-7623</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><recordid>eNp90LFOwzAQBmALgUQpDLyBV5BS7Nhx7BFVUJAqWGCOjHNughI72C5VH4M3JtAKBiRuueW7_6QfoXNKZpQIdkVnlBWMqvwATSiRKitFzg7RhBDGM1FyeYxOYnwl4xSUTtDH0m8yG-BtDc5scQ-p8TW2PuBerxwknxoIvR_8BgLWrsYPEFxMGKwFk0av4zpADy5F7B2OrVt1gE3YxqQ7HHU_dBCxTrjzG5ygHyDoNF7E77CmXTX7R63BtoWujqfoyOouwtl-T9Hz7c3T_C5bPi7u59fLzDDBUiaVygXUL5yQnHBaSEF5wSkDo0AIWkJhrAIugQGRVhFqGSs5kaQUSrIS2BRd7HJN8DEGsNUQ2l6HbUVJ9dVlRat9l6O93Nlo2qRT690PfvfhF1ZDbf_Df5M_Ae9nhRs</recordid><startdate>20010501</startdate><enddate>20010501</enddate><creator>Choi, E. S.</creator><creator>Brooks, J. S.</creator><creator>Qualls, J. S.</creator><creator>Song, Y. S.</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20010501</creationdate><title>Low-frequency method for magnetothermopower and Nernst effect measurements on single crystal samples at low temperatures and high magnetic fields</title><author>Choi, E. S. ; Brooks, J. S. ; Qualls, J. S. ; Song, Y. S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c363t-89926edb4002041586145413ec9e6617e5cf9e48e3e08f901f3374080769837e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Choi, E. S.</creatorcontrib><creatorcontrib>Brooks, J. S.</creatorcontrib><creatorcontrib>Qualls, J. S.</creatorcontrib><creatorcontrib>Song, Y. S.</creatorcontrib><collection>CrossRef</collection><jtitle>Review of scientific instruments</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Choi, E. S.</au><au>Brooks, J. S.</au><au>Qualls, J. S.</au><au>Song, Y. S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low-frequency method for magnetothermopower and Nernst effect measurements on single crystal samples at low temperatures and high magnetic fields</atitle><jtitle>Review of scientific instruments</jtitle><date>2001-05-01</date><risdate>2001</risdate><volume>72</volume><issue>5</issue><spage>2392</spage><epage>2397</epage><pages>2392-2397</pages><issn>0034-6748</issn><eissn>1089-7623</eissn><coden>RSINAK</coden><abstract>We describe an alternating current method for the measurement of the longitudinal
(S
xx
)
and transverse
(S
xy
,
i.e., Nernst) thermopower of millimeter-size crystal samples at low temperatures
(T<1
K) and high magnetic fields
(B∼30
T). A low-frequency (33 mHz) heating method is used to increase the resolution and to determine the temperature gradient reliably in high magnetic fields. Samples are mounted between two thermal blocks which are heated by a sinusoidal frequency
f
0
with a π/2 phase difference. The phase difference between two heater currents gives a temperature gradient at
2f
0
.
The corresponding thermopower and Nernst effect signals are extracted by using a digital signal processing method due to the low frequency of the measurement. An important component of the method involves a superconducting link,
YBa
2
Cu
3
O
7+δ
,
which is mounted in parallel with sample to remove the background magnetothermopower of the lead wires. The method is demonstrated for the quasi-two-dimensional organic conductor
α-(
BEDT–TTF)
2
KHg(SCN)
4
,
which exhibits a complex, magnetic field dependent ground state above 22.5 T at low temperatures.</abstract><doi>10.1063/1.1353192</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0034-6748 |
| ispartof | Review of scientific instruments, 2001-05, Vol.72 (5), p.2392-2397 |
| issn | 0034-6748 1089-7623 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_1353192 |
| source | American Institute of Physics (AIP) Publications; American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list) |
| title | Low-frequency method for magnetothermopower and Nernst effect measurements on single crystal samples at low temperatures and high magnetic fields |
| url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-03T01%3A02%3A04IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-scitation_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Low-frequency%20method%20for%20magnetothermopower%20and%20Nernst%20effect%20measurements%20on%20single%20crystal%20samples%20at%20low%20temperatures%20and%20high%20magnetic%20fields&rft.jtitle=Review%20of%20scientific%20instruments&rft.au=Choi,%20E.%20S.&rft.date=2001-05-01&rft.volume=72&rft.issue=5&rft.spage=2392&rft.epage=2397&rft.pages=2392-2397&rft.issn=0034-6748&rft.eissn=1089-7623&rft.coden=RSINAK&rft_id=info:doi/10.1063/1.1353192&rft_dat=%3Cscitation_cross%3Ersi%3C/scitation_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c363t-89926edb4002041586145413ec9e6617e5cf9e48e3e08f901f3374080769837e3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |