Imam Fathoni
Jurusan Fisika, Fakultas MIPA, Universitas Brawijaya

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STUDI PENGARUH TEMPERATUR ANNEALING TERHADAP PENUMBUHAN KRISTAL TIMBAL ZIRKONAT TITANAT Pb(ZrxTi1-x)O3 YANG DISINTESIS DENGAN METODE SOL GEL Fathoni, Imam; Muhlis, muhlis; Tjahjanto, Rachmat Triandi; Masruroh, masruroh
Physics Student Journal Vol 1, No 1 (2013)
Publisher : Department of Physics - Faculty of Science

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Abstract

Telah dilakukan studi pengaruh temperature annealing terhadap penumbuhan kristal PZT di atas substrat Silikon (Si). Proses pembuatan larutan prekursor PZT dilakukan dengan metode sol gel dan penumbuhan lapisan tipis PZT dengan metode spin coating. Struktur kristal lapisan tipis PZT tanpa annealing dan annealing selama dua jam pada temperatur 500 oC diobservasi menggunakan XRD (X Ray Diffraction). Dari hasil uji XRD menunjukkan bahwa lapisan tipis PZT tanpa annealing (as deposited) belum terbentuk kristal, tetapi pada lapisan tipis PZT yang di annealing pada temperatur 500 oC terbentuk kristal PZT dengan orientasi (102) dan (112). Hal ini menunjukkan bahwa annealing berpengaruh terhadap struktur kristal yang terbentuk, karena kristal PZT belum terbentuk sebelum dilakukan annealing pada lapisan tipis PZT.
STUDI PENUMBUHAN LAPISAN TIPIS PZT DENGAN METODE SPIN COATING Muhlis, muhlis; Fathoni, Imam; Iswarin, S.J.; Triandi, Rahmat; Masruroh, masruroh
Physics Student Journal Vol 1, No 1 (2013)
Publisher : Department of Physics - Faculty of Science

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Abstract

Telah dilakukan sintesis PZT dengan tehnik sol-gel dan penumbuhan lapisan tipis PZT dengan metode spin coating. Lapisan tipis PZT dibuat dengan tehnik sol-gel dengan menggunakan larutan penyetabil PEG 400 serta ditumbuhkan di atas substrat silikon dengan metode penumbuhan spin coating. Penggunaan tehnik sol-gel dan metode spin coating diharapkan mampu menghasilkan lapisan tipis dengan tingkat kehomogenan yang tinggi. Struktur lapisan tipis dipelajari dengan menggunakan difraksi sinar-x (XRD) untuk mengetahui struktur serta puncak kristal yang terbentuk. Hasil XRD menunjukkan bahwa terbentuk lapisan perovskit PZT dengan orientasi bidang kristal (100), (101), (111), (200), (102), (112) dan (022) yang mengindikasikan kristal yang terbentuk adalah polikristal. Orientasi bidang kristal yang lebih dominan terletak pada bidang (101).Kata kunci: Lapisan Tipis PZT, Tehnik Sol-Gel, Metode Spin Coating.
REAKSI INVESTOR TERHADAP INFORMASI PENINGKATAN KASUS HARIAN COVID-19 PADA EMITEN PENYEDIA JASA KESEHATAN BEI Fathoni, Imam; Fadli, Faishal
Contemporary Studies in Economic, Finance and Banking Vol. 2 No. 1 (2023)
Publisher : Fakultas Ekonomi dan Bisnis Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/csefb.2023.02.1.13

Abstract

COVID-19 pandemic have impact on the economy, We can see from the IDX stock market crash, that can be observed from january 2020 untill march 2020. When COVID-19 pandemic occur, there was an increase demand for health product. That can be showed by how the company revenue increased on health service company, then how the investor respond to that?. This study aims to observe the investor reactions, on increasing COVID-19 cases to returns, abnormal returns and trading volume activity of Health Service Providers based company,  with a period of 10 days before and after the announcement of the event. This study uses an Event Study approach. The result of this study is that there are significant differences in the before and after period on return and abnormal return, and not significant on trading volume activity variables. There are three implications obtained from this study, the first is that this research confirms that information affects stock prices. The second implication is that the significant increase in returns and abnormal returns does not mean that trading volume activity has also increased significantly. The final implication of this research is that the alleged inclination of investors irrationality.
STUDI PEMIKIRAN TOKOH ORIENTALIS (IGNAZ GOLDZHIER) TERHADAP KEOTENTIKAN HADITS Fathoni, Imam; Ulfiah, Umi Hanik
Al Fattah Ejournal Sma Al Muhammad Cepu Vol. 3 No. 03 (2023): Jurnal Pendidikan
Publisher : https://www.ejournal.smaamc.sch.id/index.php/belajar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1989/jzh0k973

Abstract

The authenticity of the hadith of the Prophet s.a.w. seems to be undoubted in his belief among Muslims. However, the study of the authenticity of this hadith is a topic that is always discussed. Especially the errors or mistakes from the hadith are very sought by the orientalists. The purpose of this article is to know Ignaz Goldziher's thoughts on the authenticity of the Hadith. The results of this study are: Ignaz Goldziher's thoughts in examining the authenticity of the hadith, namely: first, What can be justified from the lifetime of Muhammad PBUH is the Quran. Others, including hadiths made by Muslims from the second and third centuries AH/VIII and IX AD. Second, Goldziher argues that the hadith as a whole is the product of people who lived in the second or early third century of the Hijri and is not the utterance of the Prophet (peace be upon him), because the sharia laws were unknown to Muslims in the first period of Hijri.
STUDI ISLAM PERSPEKTIF INSIDER DAN OUTSIDER Fathoni, Imam; Ulfiah, Umi Hanik
Al Fattah Ejournal Sma Al Muhammad Cepu Vol. 2 No. 02 (2023): Jurnal Pendidikan
Publisher : https://www.ejournal.smaamc.sch.id/index.php/belajar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1989/5ezkb035

Abstract

Insiders are religious scholars who come from their own religion (insiders). Meanwhile, outsiders are religious scholars who are not adherents of the religion concerned (outsiders). This article discusses the study of Islamic studies in the perspective of insiders and outsiders, this research uses a descriptive qualitative approach with data obtained from objective and accountable library research. The results of this research are: Islamic studies from an insider's perspective have produced several research results. Some general introductory books on Islam as a religion and civilization by single authors show the importance of a multidisciplinary approach. The fact of reality that is often discussed is that insider and outsider studies are closely related to the experiences of the West and Muslim scholars themselves in interpreting and understanding Islam. The issue at stake is whether outsider scholars of Islam are truly objective, and accountable, and have scientific validity from an insider's perspective