Smectic A-C-A liquid crystal reentrance: A photon transmission study

Haluk Özbek; Sevtap Yildiz; Önder Pekcan; A. Nihat Berker

doi:10.1080/01411590290020420

Smectic A-C-A liquid crystal reentrance: A photon transmission study

Haluk Özbek, Sevtap Yildiz, Önder Pekcan^*, A. Nihat Berker

^*Bu çalışma için yazışmadan sorumlu yazar

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10 Atıf (Scopus)

Özet

Ultraviolet/visible photon transmission measurements were applied to study liquid crystal phase transitions in the binary BOPDOB-BOPOOB mixture. A sequence exhibiting a new reentrant, namely isotropic-nematic-smectic A-C-A as temperature is lowered, is identified. For the smectic A-C transition, the critical exponent β is seen to cross over from the mean-field 0.501 ± 0.008 to the helium-like 0.336 ± 0.012 as the transition is approached. The reentrant C-A transition is first-order, signalling a tricritical point in the phase diagram.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	301-308
Sayfa sayısı	8
Dergi	Phase Transitions
Hacim	75
Basın numarası	3
DOI'lar	https://doi.org/10.1080/01411590290020420
Yayın durumu	Yayınlandı - 2002

Belgeye Erişim

10.1080/01411590290020420

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Link to publication in Scopus

Alıntı Yap

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title = "Smectic A-C-A liquid crystal reentrance: A photon transmission study",

abstract = "Ultraviolet/visible photon transmission measurements were applied to study liquid crystal phase transitions in the binary BOPDOB-BOPOOB mixture. A sequence exhibiting a new reentrant, namely isotropic-nematic-smectic A-C-A as temperature is lowered, is identified. For the smectic A-C transition, the critical exponent β is seen to cross over from the mean-field 0.501 ± 0.008 to the helium-like 0.336 ± 0.012 as the transition is approached. The reentrant C-A transition is first-order, signalling a tricritical point in the phase diagram.",

keywords = "Binary mixture, Critical exponent, Crossover, Photon transmission technique, Reentrant phase transitions, Smectic order",

author = "Haluk {\"O}zbek and Sevtap Yildiz and {\"O}nder Pekcan and {Nihat Berker}, A.",

year = "2002",

doi = "10.1080/01411590290020420",

language = "English",

volume = "75",

pages = "301--308",

journal = "Phase Transitions",

issn = "0141-1594",

publisher = "Taylor and Francis Ltd.",

number = "3",

}

TY - JOUR

T1 - Smectic A-C-A liquid crystal reentrance

T2 - A photon transmission study

AU - Özbek, Haluk

AU - Yildiz, Sevtap

AU - Pekcan, Önder

AU - Nihat Berker, A.

PY - 2002

Y1 - 2002

N2 - Ultraviolet/visible photon transmission measurements were applied to study liquid crystal phase transitions in the binary BOPDOB-BOPOOB mixture. A sequence exhibiting a new reentrant, namely isotropic-nematic-smectic A-C-A as temperature is lowered, is identified. For the smectic A-C transition, the critical exponent β is seen to cross over from the mean-field 0.501 ± 0.008 to the helium-like 0.336 ± 0.012 as the transition is approached. The reentrant C-A transition is first-order, signalling a tricritical point in the phase diagram.

AB - Ultraviolet/visible photon transmission measurements were applied to study liquid crystal phase transitions in the binary BOPDOB-BOPOOB mixture. A sequence exhibiting a new reentrant, namely isotropic-nematic-smectic A-C-A as temperature is lowered, is identified. For the smectic A-C transition, the critical exponent β is seen to cross over from the mean-field 0.501 ± 0.008 to the helium-like 0.336 ± 0.012 as the transition is approached. The reentrant C-A transition is first-order, signalling a tricritical point in the phase diagram.

KW - Binary mixture

KW - Critical exponent

KW - Crossover

KW - Photon transmission technique

KW - Reentrant phase transitions

KW - Smectic order

UR - http://www.scopus.com/inward/record.url?scp=0011689531&partnerID=8YFLogxK

U2 - 10.1080/01411590290020420

DO - 10.1080/01411590290020420

M3 - Article

AN - SCOPUS:0011689531

SN - 0141-1594

VL - 75

SP - 301

EP - 308

JO - Phase Transitions

JF - Phase Transitions

IS - 3

ER -

Smectic A-C-A liquid crystal reentrance: A photon transmission study

Özet

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